From 24ae318a3d5f0519f5fe29d08e01e8a044d99d87 Mon Sep 17 00:00:00 2001
From: Markus Reiter <me@reitermark.us>
Date: Sat, 10 Oct 2020 14:16:11 +0200
Subject: [PATCH 01/15] Move type annotations into files.

---
 Library/Homebrew/PATH.rb                      |   1 +
 Library/Homebrew/bintray.rb                   |   1 +
 Library/Homebrew/brew.rb                      |   1 +
 Library/Homebrew/build.rb                     |   1 +
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 Library/Homebrew/test/utils/shell_spec.rb     |   1 +
 Library/Homebrew/test/utils/spdx_spec.rb      |   1 +
 Library/Homebrew/test/utils/svn_spec.rb       |   1 +
 Library/Homebrew/test/utils/tar_spec.rb       |   1 +
 Library/Homebrew/test/utils/tty_spec.rb       |   1 +
 Library/Homebrew/test/utils/user_spec.rb      |   1 +
 Library/Homebrew/test/utils_spec.rb           |   1 +
 Library/Homebrew/test/version_spec.rb         |   1 +
 Library/Homebrew/test/x11_requirement_spec.rb |   1 +
 Library/Homebrew/unpack_strategy.rb           |   1 +
 Library/Homebrew/unpack_strategy/air.rb       |   1 +
 Library/Homebrew/unpack_strategy/bazaar.rb    |   1 +
 Library/Homebrew/unpack_strategy/bzip2.rb     |   1 +
 Library/Homebrew/unpack_strategy/cab.rb       |   1 +
 Library/Homebrew/unpack_strategy/compress.rb  |   1 +
 Library/Homebrew/unpack_strategy/cvs.rb       |   1 +
 Library/Homebrew/unpack_strategy/directory.rb |   1 +
 Library/Homebrew/unpack_strategy/dmg.rb       |   1 +
 .../Homebrew/unpack_strategy/executable.rb    |   1 +
 Library/Homebrew/unpack_strategy/fossil.rb    |   1 +
 .../Homebrew/unpack_strategy/generic_unar.rb  |   1 +
 Library/Homebrew/unpack_strategy/git.rb       |   1 +
 Library/Homebrew/unpack_strategy/gzip.rb      |   1 +
 Library/Homebrew/unpack_strategy/jar.rb       |   1 +
 Library/Homebrew/unpack_strategy/lha.rb       |   1 +
 Library/Homebrew/unpack_strategy/lua_rock.rb  |   1 +
 Library/Homebrew/unpack_strategy/lzip.rb      |   1 +
 Library/Homebrew/unpack_strategy/lzma.rb      |   1 +
 Library/Homebrew/unpack_strategy/mercurial.rb |   1 +
 .../unpack_strategy/microsoft_office_xml.rb   |   1 +
 Library/Homebrew/unpack_strategy/otf.rb       |   1 +
 Library/Homebrew/unpack_strategy/p7zip.rb     |   1 +
 Library/Homebrew/unpack_strategy/pax.rb       |   1 +
 Library/Homebrew/unpack_strategy/pkg.rb       |   1 +
 Library/Homebrew/unpack_strategy/rar.rb       |   1 +
 .../self_extracting_executable.rb             |   1 +
 Library/Homebrew/unpack_strategy/sit.rb       |   1 +
 .../Homebrew/unpack_strategy/subversion.rb    |   1 +
 Library/Homebrew/unpack_strategy/tar.rb       |   1 +
 Library/Homebrew/unpack_strategy/ttf.rb       |   1 +
 .../Homebrew/unpack_strategy/uncompressed.rb  |   1 +
 Library/Homebrew/unpack_strategy/xar.rb       |   1 +
 Library/Homebrew/unpack_strategy/xz.rb        |   1 +
 Library/Homebrew/unpack_strategy/zip.rb       |   1 +
 Library/Homebrew/upgrade.rb                   |   1 +
 Library/Homebrew/utils.rb                     |   1 +
 Library/Homebrew/utils/analytics.rb           |   1 +
 Library/Homebrew/utils/bottles.rb             |   1 +
 Library/Homebrew/utils/curl.rb                |   1 +
 Library/Homebrew/utils/fork.rb                |   1 +
 Library/Homebrew/utils/formatter.rb           |   1 +
 Library/Homebrew/utils/gems.rb                |   1 +
 Library/Homebrew/utils/git.rb                 |   1 +
 Library/Homebrew/utils/github.rb              |   1 +
 Library/Homebrew/utils/github/actions.rb      |   1 +
 Library/Homebrew/utils/inreplace.rb           |   1 +
 Library/Homebrew/utils/link.rb                |   1 +
 Library/Homebrew/utils/livecheck_formula.rb   |   1 +
 Library/Homebrew/utils/popen.rb               |   1 +
 Library/Homebrew/utils/pypi.rb                |   1 +
 Library/Homebrew/utils/repology.rb            |   1 +
 .../utils/ruby_check_version_script.rb        |   1 +
 Library/Homebrew/utils/shared_audits.rb       |   1 +
 Library/Homebrew/utils/shebang.rb             |   1 +
 Library/Homebrew/utils/shell.rb               |   1 +
 Library/Homebrew/utils/spdx.rb                |   1 +
 Library/Homebrew/utils/svn.rb                 |   1 +
 Library/Homebrew/utils/tar.rb                 |   1 +
 Library/Homebrew/utils/tty.rb                 |   1 +
 Library/Homebrew/utils/user.rb                |   1 +
 Library/Homebrew/version.rb                   |   1 +
 Library/Homebrew/version/null.rb              |   1 +
 Library/add-typed.rb                          |  27 +
 856 files changed, 884 insertions(+), 965 deletions(-)
 create mode 100755 Library/add-typed.rb

diff --git a/Library/Homebrew/PATH.rb b/Library/Homebrew/PATH.rb
index 8fb2269987df3..f9c347d6e8b07 100644
--- a/Library/Homebrew/PATH.rb
+++ b/Library/Homebrew/PATH.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 # Represention of a `*PATH` environment variable.
diff --git a/Library/Homebrew/bintray.rb b/Library/Homebrew/bintray.rb
index 5d8b89ed5aedc..829b1da1182e3 100644
--- a/Library/Homebrew/bintray.rb
+++ b/Library/Homebrew/bintray.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "utils/curl"
diff --git a/Library/Homebrew/brew.rb b/Library/Homebrew/brew.rb
index 6caee8c39a862..2240161dcc13a 100644
--- a/Library/Homebrew/brew.rb
+++ b/Library/Homebrew/brew.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 if ENV["HOMEBREW_STACKPROF"]
diff --git a/Library/Homebrew/build.rb b/Library/Homebrew/build.rb
index a5e374018494e..f7c42748743c7 100644
--- a/Library/Homebrew/build.rb
+++ b/Library/Homebrew/build.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 # This script is loaded by formula_installer as a separate instance.
diff --git a/Library/Homebrew/build_environment.rb b/Library/Homebrew/build_environment.rb
index ed6f319730e36..6b4e7f0529228 100644
--- a/Library/Homebrew/build_environment.rb
+++ b/Library/Homebrew/build_environment.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 # Settings for the build environment.
diff --git a/Library/Homebrew/build_options.rb b/Library/Homebrew/build_options.rb
index f4f51be48d688..de78b09472591 100644
--- a/Library/Homebrew/build_options.rb
+++ b/Library/Homebrew/build_options.rb
@@ -1,3 +1,4 @@
+# typed: true
 # frozen_string_literal: true
 
 # Options for a formula build.
diff --git a/Library/Homebrew/cache_store.rb b/Library/Homebrew/cache_store.rb
index 6dd3768aeb06f..982f15c482fa1 100644
--- a/Library/Homebrew/cache_store.rb
+++ b/Library/Homebrew/cache_store.rb
@@ -1,3 +1,4 @@
+# typed: true
 # frozen_string_literal: true
 
 require "json"
diff --git a/Library/Homebrew/cask.rb b/Library/Homebrew/cask.rb
index e39f0328b11fd..f4b32a21fd4a4 100644
--- a/Library/Homebrew/cask.rb
+++ b/Library/Homebrew/cask.rb
@@ -1,3 +1,4 @@
+# typed: strict
 # frozen_string_literal: true
 
 require "cask/artifact"
diff --git a/Library/Homebrew/cask/artifact.rb b/Library/Homebrew/cask/artifact.rb
index a86b3232eddd1..bee610cfb5702 100644
--- a/Library/Homebrew/cask/artifact.rb
+++ b/Library/Homebrew/cask/artifact.rb
@@ -1,3 +1,4 @@
+# typed: strict
 # frozen_string_literal: true
 
 require "cask/artifact/app"
diff --git a/Library/Homebrew/cask/artifact/abstract_artifact.rb b/Library/Homebrew/cask/artifact/abstract_artifact.rb
index 1a6b019002820..50c2b325e58a9 100644
--- a/Library/Homebrew/cask/artifact/abstract_artifact.rb
+++ b/Library/Homebrew/cask/artifact/abstract_artifact.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 module Cask
diff --git a/Library/Homebrew/cask/artifact/abstract_flight_block.rb b/Library/Homebrew/cask/artifact/abstract_flight_block.rb
index 053294e7ffda6..1695a257a5e5c 100644
--- a/Library/Homebrew/cask/artifact/abstract_flight_block.rb
+++ b/Library/Homebrew/cask/artifact/abstract_flight_block.rb
@@ -1,3 +1,4 @@
+# typed: true
 # frozen_string_literal: true
 
 require "cask/artifact/abstract_artifact"
diff --git a/Library/Homebrew/cask/artifact/abstract_uninstall.rb b/Library/Homebrew/cask/artifact/abstract_uninstall.rb
index 9cce7ed341e09..b0da73866f02a 100644
--- a/Library/Homebrew/cask/artifact/abstract_uninstall.rb
+++ b/Library/Homebrew/cask/artifact/abstract_uninstall.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "timeout"
diff --git a/Library/Homebrew/cask/artifact/app.rb b/Library/Homebrew/cask/artifact/app.rb
index 01cbec77f474f..c2ec38df44544 100644
--- a/Library/Homebrew/cask/artifact/app.rb
+++ b/Library/Homebrew/cask/artifact/app.rb
@@ -1,3 +1,4 @@
+# typed: strict
 # frozen_string_literal: true
 
 require "cask/artifact/moved"
diff --git a/Library/Homebrew/cask/artifact/artifact.rb b/Library/Homebrew/cask/artifact/artifact.rb
index 3d81ab65b0cf9..f6b350a82dec1 100644
--- a/Library/Homebrew/cask/artifact/artifact.rb
+++ b/Library/Homebrew/cask/artifact/artifact.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "cask/artifact/moved"
diff --git a/Library/Homebrew/cask/artifact/audio_unit_plugin.rb b/Library/Homebrew/cask/artifact/audio_unit_plugin.rb
index c22c132d46e89..1fe7cf108fa52 100644
--- a/Library/Homebrew/cask/artifact/audio_unit_plugin.rb
+++ b/Library/Homebrew/cask/artifact/audio_unit_plugin.rb
@@ -1,3 +1,4 @@
+# typed: strict
 # frozen_string_literal: true
 
 require "cask/artifact/moved"
diff --git a/Library/Homebrew/cask/artifact/binary.rb b/Library/Homebrew/cask/artifact/binary.rb
index a1f817ca7e93e..a8c7d55450a62 100644
--- a/Library/Homebrew/cask/artifact/binary.rb
+++ b/Library/Homebrew/cask/artifact/binary.rb
@@ -1,3 +1,4 @@
+# typed: true
 # frozen_string_literal: true
 
 require "cask/artifact/symlinked"
diff --git a/Library/Homebrew/cask/artifact/colorpicker.rb b/Library/Homebrew/cask/artifact/colorpicker.rb
index 48b2452455dc6..545389369c0fb 100644
--- a/Library/Homebrew/cask/artifact/colorpicker.rb
+++ b/Library/Homebrew/cask/artifact/colorpicker.rb
@@ -1,3 +1,4 @@
+# typed: strict
 # frozen_string_literal: true
 
 require "cask/artifact/moved"
diff --git a/Library/Homebrew/cask/artifact/dictionary.rb b/Library/Homebrew/cask/artifact/dictionary.rb
index 03fded17ff368..50749b2bdd81b 100644
--- a/Library/Homebrew/cask/artifact/dictionary.rb
+++ b/Library/Homebrew/cask/artifact/dictionary.rb
@@ -1,3 +1,4 @@
+# typed: strict
 # frozen_string_literal: true
 
 require "cask/artifact/moved"
diff --git a/Library/Homebrew/cask/artifact/font.rb b/Library/Homebrew/cask/artifact/font.rb
index 164731c166145..caa2fcc7ba3ce 100644
--- a/Library/Homebrew/cask/artifact/font.rb
+++ b/Library/Homebrew/cask/artifact/font.rb
@@ -1,3 +1,4 @@
+# typed: strict
 # frozen_string_literal: true
 
 require "cask/artifact/moved"
diff --git a/Library/Homebrew/cask/artifact/input_method.rb b/Library/Homebrew/cask/artifact/input_method.rb
index 9cd6b36239424..79b3acaadf875 100644
--- a/Library/Homebrew/cask/artifact/input_method.rb
+++ b/Library/Homebrew/cask/artifact/input_method.rb
@@ -1,3 +1,4 @@
+# typed: strict
 # frozen_string_literal: true
 
 require "cask/artifact/moved"
diff --git a/Library/Homebrew/cask/artifact/installer.rb b/Library/Homebrew/cask/artifact/installer.rb
index 7ec14f611e1be..c2fa6543c54e7 100644
--- a/Library/Homebrew/cask/artifact/installer.rb
+++ b/Library/Homebrew/cask/artifact/installer.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "cask/artifact/abstract_artifact"
diff --git a/Library/Homebrew/cask/artifact/internet_plugin.rb b/Library/Homebrew/cask/artifact/internet_plugin.rb
index 6e22874a46333..73c655a52bc34 100644
--- a/Library/Homebrew/cask/artifact/internet_plugin.rb
+++ b/Library/Homebrew/cask/artifact/internet_plugin.rb
@@ -1,3 +1,4 @@
+# typed: strict
 # frozen_string_literal: true
 
 require "cask/artifact/moved"
diff --git a/Library/Homebrew/cask/artifact/manpage.rb b/Library/Homebrew/cask/artifact/manpage.rb
index 66453f2dba695..3824296cbd181 100644
--- a/Library/Homebrew/cask/artifact/manpage.rb
+++ b/Library/Homebrew/cask/artifact/manpage.rb
@@ -1,3 +1,4 @@
+# typed: true
 # frozen_string_literal: true
 
 require "cask/artifact/symlinked"
diff --git a/Library/Homebrew/cask/artifact/mdimporter.rb b/Library/Homebrew/cask/artifact/mdimporter.rb
index c11cb9cc4b2ee..226a01e1ccd7c 100644
--- a/Library/Homebrew/cask/artifact/mdimporter.rb
+++ b/Library/Homebrew/cask/artifact/mdimporter.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "cask/artifact/moved"
diff --git a/Library/Homebrew/cask/artifact/moved.rb b/Library/Homebrew/cask/artifact/moved.rb
index 5925b86f4b5e2..083c612447e53 100644
--- a/Library/Homebrew/cask/artifact/moved.rb
+++ b/Library/Homebrew/cask/artifact/moved.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "cask/artifact/relocated"
diff --git a/Library/Homebrew/cask/artifact/pkg.rb b/Library/Homebrew/cask/artifact/pkg.rb
index c70f2658dc401..9b5b5f157ed74 100644
--- a/Library/Homebrew/cask/artifact/pkg.rb
+++ b/Library/Homebrew/cask/artifact/pkg.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "plist"
diff --git a/Library/Homebrew/cask/artifact/postflight_block.rb b/Library/Homebrew/cask/artifact/postflight_block.rb
index c672057d8c110..00d170fda7ce0 100644
--- a/Library/Homebrew/cask/artifact/postflight_block.rb
+++ b/Library/Homebrew/cask/artifact/postflight_block.rb
@@ -1,3 +1,4 @@
+# typed: strict
 # frozen_string_literal: true
 
 require "cask/artifact/abstract_flight_block"
diff --git a/Library/Homebrew/cask/artifact/preflight_block.rb b/Library/Homebrew/cask/artifact/preflight_block.rb
index f6f8882c71ca6..0b7f21c8ecd98 100644
--- a/Library/Homebrew/cask/artifact/preflight_block.rb
+++ b/Library/Homebrew/cask/artifact/preflight_block.rb
@@ -1,3 +1,4 @@
+# typed: strict
 # frozen_string_literal: true
 
 require "cask/artifact/abstract_flight_block"
diff --git a/Library/Homebrew/cask/artifact/prefpane.rb b/Library/Homebrew/cask/artifact/prefpane.rb
index 8447c67c1d4ab..aed47644e1a39 100644
--- a/Library/Homebrew/cask/artifact/prefpane.rb
+++ b/Library/Homebrew/cask/artifact/prefpane.rb
@@ -1,3 +1,4 @@
+# typed: true
 # frozen_string_literal: true
 
 require "cask/artifact/moved"
diff --git a/Library/Homebrew/cask/artifact/qlplugin.rb b/Library/Homebrew/cask/artifact/qlplugin.rb
index 30588c6236db7..e0c26a6dc8cdd 100644
--- a/Library/Homebrew/cask/artifact/qlplugin.rb
+++ b/Library/Homebrew/cask/artifact/qlplugin.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "cask/artifact/moved"
diff --git a/Library/Homebrew/cask/artifact/relocated.rb b/Library/Homebrew/cask/artifact/relocated.rb
index 3f0da05eb0dde..5c9dd0dbd5852 100644
--- a/Library/Homebrew/cask/artifact/relocated.rb
+++ b/Library/Homebrew/cask/artifact/relocated.rb
@@ -1,3 +1,4 @@
+# typed: true
 # frozen_string_literal: true
 
 require "cask/artifact/abstract_artifact"
diff --git a/Library/Homebrew/cask/artifact/screen_saver.rb b/Library/Homebrew/cask/artifact/screen_saver.rb
index f8f73e70212fe..c52e0361da015 100644
--- a/Library/Homebrew/cask/artifact/screen_saver.rb
+++ b/Library/Homebrew/cask/artifact/screen_saver.rb
@@ -1,3 +1,4 @@
+# typed: strict
 # frozen_string_literal: true
 
 require "cask/artifact/moved"
diff --git a/Library/Homebrew/cask/artifact/service.rb b/Library/Homebrew/cask/artifact/service.rb
index 9a92a6506f772..901cb5ac07900 100644
--- a/Library/Homebrew/cask/artifact/service.rb
+++ b/Library/Homebrew/cask/artifact/service.rb
@@ -1,3 +1,4 @@
+# typed: strict
 # frozen_string_literal: true
 
 require "cask/artifact/moved"
diff --git a/Library/Homebrew/cask/artifact/stage_only.rb b/Library/Homebrew/cask/artifact/stage_only.rb
index a013388e25899..c67cac6d3b13a 100644
--- a/Library/Homebrew/cask/artifact/stage_only.rb
+++ b/Library/Homebrew/cask/artifact/stage_only.rb
@@ -1,3 +1,4 @@
+# typed: true
 # frozen_string_literal: true
 
 require "cask/artifact/abstract_artifact"
diff --git a/Library/Homebrew/cask/artifact/suite.rb b/Library/Homebrew/cask/artifact/suite.rb
index be8f348205aad..a236a602e0f9d 100644
--- a/Library/Homebrew/cask/artifact/suite.rb
+++ b/Library/Homebrew/cask/artifact/suite.rb
@@ -1,3 +1,4 @@
+# typed: true
 # frozen_string_literal: true
 
 require "cask/artifact/moved"
diff --git a/Library/Homebrew/cask/artifact/symlinked.rb b/Library/Homebrew/cask/artifact/symlinked.rb
index 1feeda027ad35..68e8dbe181dca 100644
--- a/Library/Homebrew/cask/artifact/symlinked.rb
+++ b/Library/Homebrew/cask/artifact/symlinked.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "cask/artifact/relocated"
diff --git a/Library/Homebrew/cask/artifact/uninstall.rb b/Library/Homebrew/cask/artifact/uninstall.rb
index 00b385e64727e..0d924446de300 100644
--- a/Library/Homebrew/cask/artifact/uninstall.rb
+++ b/Library/Homebrew/cask/artifact/uninstall.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "cask/artifact/abstract_uninstall"
diff --git a/Library/Homebrew/cask/artifact/vst3_plugin.rb b/Library/Homebrew/cask/artifact/vst3_plugin.rb
index e82690d84bc72..bd69c57a41fa8 100644
--- a/Library/Homebrew/cask/artifact/vst3_plugin.rb
+++ b/Library/Homebrew/cask/artifact/vst3_plugin.rb
@@ -1,3 +1,4 @@
+# typed: strict
 # frozen_string_literal: true
 
 require "cask/artifact/moved"
diff --git a/Library/Homebrew/cask/artifact/vst_plugin.rb b/Library/Homebrew/cask/artifact/vst_plugin.rb
index 058ea5052139b..976ae18d68fa5 100644
--- a/Library/Homebrew/cask/artifact/vst_plugin.rb
+++ b/Library/Homebrew/cask/artifact/vst_plugin.rb
@@ -1,3 +1,4 @@
+# typed: strict
 # frozen_string_literal: true
 
 require "cask/artifact/moved"
diff --git a/Library/Homebrew/cask/artifact/zap.rb b/Library/Homebrew/cask/artifact/zap.rb
index 6967f922c7e6b..80485f23d677d 100644
--- a/Library/Homebrew/cask/artifact/zap.rb
+++ b/Library/Homebrew/cask/artifact/zap.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "cask/artifact/abstract_uninstall"
diff --git a/Library/Homebrew/cask/audit.rb b/Library/Homebrew/cask/audit.rb
index cab1b48dbc3b3..09bde070a795b 100644
--- a/Library/Homebrew/cask/audit.rb
+++ b/Library/Homebrew/cask/audit.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "cask/denylist"
diff --git a/Library/Homebrew/cask/auditor.rb b/Library/Homebrew/cask/auditor.rb
index 264c04b7a3d55..a201c4fe30196 100644
--- a/Library/Homebrew/cask/auditor.rb
+++ b/Library/Homebrew/cask/auditor.rb
@@ -1,3 +1,4 @@
+# typed: true
 # frozen_string_literal: true
 
 require "cask/audit"
diff --git a/Library/Homebrew/cask/cache.rb b/Library/Homebrew/cask/cache.rb
index 2d1dcc5706277..1cd57f9060e5c 100644
--- a/Library/Homebrew/cask/cache.rb
+++ b/Library/Homebrew/cask/cache.rb
@@ -1,3 +1,4 @@
+# typed: true
 # frozen_string_literal: true
 
 module Cask
diff --git a/Library/Homebrew/cask/cask.rb b/Library/Homebrew/cask/cask.rb
index bb2b9327934e5..8858922a0bad0 100644
--- a/Library/Homebrew/cask/cask.rb
+++ b/Library/Homebrew/cask/cask.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "cask/cask_loader"
diff --git a/Library/Homebrew/cask/cask_loader.rb b/Library/Homebrew/cask/cask_loader.rb
index 8946c3b58eb51..8ec015a931b4c 100644
--- a/Library/Homebrew/cask/cask_loader.rb
+++ b/Library/Homebrew/cask/cask_loader.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "cask/cache"
diff --git a/Library/Homebrew/cask/caskroom.rb b/Library/Homebrew/cask/caskroom.rb
index e2b3841c365ba..ab9c1b4dc0b1e 100644
--- a/Library/Homebrew/cask/caskroom.rb
+++ b/Library/Homebrew/cask/caskroom.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "utils/user"
diff --git a/Library/Homebrew/cask/cmd.rb b/Library/Homebrew/cask/cmd.rb
index 38795bffe3ba7..5c62cb73ea60e 100644
--- a/Library/Homebrew/cask/cmd.rb
+++ b/Library/Homebrew/cask/cmd.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "optparse"
diff --git a/Library/Homebrew/cask/cmd/--cache.rb b/Library/Homebrew/cask/cmd/--cache.rb
index 81d3acc7dee4e..613841f7c3c82 100644
--- a/Library/Homebrew/cask/cmd/--cache.rb
+++ b/Library/Homebrew/cask/cmd/--cache.rb
@@ -1,3 +1,4 @@
+# typed: true
 # frozen_string_literal: true
 
 module Cask
diff --git a/Library/Homebrew/cask/cmd/abstract_command.rb b/Library/Homebrew/cask/cmd/abstract_command.rb
index 4a5556725895a..cf4ca79a0d6b7 100644
--- a/Library/Homebrew/cask/cmd/abstract_command.rb
+++ b/Library/Homebrew/cask/cmd/abstract_command.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "search"
diff --git a/Library/Homebrew/cask/cmd/abstract_internal_command.rb b/Library/Homebrew/cask/cmd/abstract_internal_command.rb
index b15b9acc907ca..7ccc3937b7ffb 100644
--- a/Library/Homebrew/cask/cmd/abstract_internal_command.rb
+++ b/Library/Homebrew/cask/cmd/abstract_internal_command.rb
@@ -1,3 +1,4 @@
+# typed: true
 # frozen_string_literal: true
 
 module Cask
diff --git a/Library/Homebrew/cask/cmd/audit.rb b/Library/Homebrew/cask/cmd/audit.rb
index c9f1dda0f0493..6deeb84f8e997 100644
--- a/Library/Homebrew/cask/cmd/audit.rb
+++ b/Library/Homebrew/cask/cmd/audit.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "utils/github/actions"
diff --git a/Library/Homebrew/cask/cmd/cat.rb b/Library/Homebrew/cask/cmd/cat.rb
index 3d731b1d6c58f..fb7944300094a 100644
--- a/Library/Homebrew/cask/cmd/cat.rb
+++ b/Library/Homebrew/cask/cmd/cat.rb
@@ -1,3 +1,4 @@
+# typed: true
 # frozen_string_literal: true
 
 module Cask
diff --git a/Library/Homebrew/cask/cmd/create.rb b/Library/Homebrew/cask/cmd/create.rb
index c190161fa6f57..7ae14dc7d5337 100644
--- a/Library/Homebrew/cask/cmd/create.rb
+++ b/Library/Homebrew/cask/cmd/create.rb
@@ -1,3 +1,4 @@
+# typed: true
 # frozen_string_literal: true
 
 module Cask
diff --git a/Library/Homebrew/cask/cmd/doctor.rb b/Library/Homebrew/cask/cmd/doctor.rb
index dafc4e57747ee..0c80dcef21e8d 100644
--- a/Library/Homebrew/cask/cmd/doctor.rb
+++ b/Library/Homebrew/cask/cmd/doctor.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 module Cask
diff --git a/Library/Homebrew/cask/cmd/edit.rb b/Library/Homebrew/cask/cmd/edit.rb
index bbeffbf730804..bea10bf630576 100644
--- a/Library/Homebrew/cask/cmd/edit.rb
+++ b/Library/Homebrew/cask/cmd/edit.rb
@@ -1,3 +1,4 @@
+# typed: true
 # frozen_string_literal: true
 
 module Cask
diff --git a/Library/Homebrew/cask/cmd/fetch.rb b/Library/Homebrew/cask/cmd/fetch.rb
index e42208a31b541..d9b33518325ad 100644
--- a/Library/Homebrew/cask/cmd/fetch.rb
+++ b/Library/Homebrew/cask/cmd/fetch.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 module Cask
diff --git a/Library/Homebrew/cask/cmd/help.rb b/Library/Homebrew/cask/cmd/help.rb
index fee20683db701..721ac40842fab 100644
--- a/Library/Homebrew/cask/cmd/help.rb
+++ b/Library/Homebrew/cask/cmd/help.rb
@@ -1,3 +1,4 @@
+# typed: true
 # frozen_string_literal: true
 
 module Cask
diff --git a/Library/Homebrew/cask/cmd/home.rb b/Library/Homebrew/cask/cmd/home.rb
index 291256519af3b..8087f21faac30 100644
--- a/Library/Homebrew/cask/cmd/home.rb
+++ b/Library/Homebrew/cask/cmd/home.rb
@@ -1,3 +1,4 @@
+# typed: true
 # frozen_string_literal: true
 
 module Cask
diff --git a/Library/Homebrew/cask/cmd/info.rb b/Library/Homebrew/cask/cmd/info.rb
index 683057a13f21a..e4e0797f72547 100644
--- a/Library/Homebrew/cask/cmd/info.rb
+++ b/Library/Homebrew/cask/cmd/info.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "json"
diff --git a/Library/Homebrew/cask/cmd/install.rb b/Library/Homebrew/cask/cmd/install.rb
index a532bb521e3fd..a5ad63d19c771 100644
--- a/Library/Homebrew/cask/cmd/install.rb
+++ b/Library/Homebrew/cask/cmd/install.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 module Cask
diff --git a/Library/Homebrew/cask/cmd/internal_help.rb b/Library/Homebrew/cask/cmd/internal_help.rb
index edd33fc2dfbf2..2091f48f95f3e 100644
--- a/Library/Homebrew/cask/cmd/internal_help.rb
+++ b/Library/Homebrew/cask/cmd/internal_help.rb
@@ -1,3 +1,4 @@
+# typed: true
 # frozen_string_literal: true
 
 module Cask
diff --git a/Library/Homebrew/cask/cmd/internal_stanza.rb b/Library/Homebrew/cask/cmd/internal_stanza.rb
index c392d508a3791..2c473cda1efba 100644
--- a/Library/Homebrew/cask/cmd/internal_stanza.rb
+++ b/Library/Homebrew/cask/cmd/internal_stanza.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "cask/dsl"
diff --git a/Library/Homebrew/cask/cmd/list.rb b/Library/Homebrew/cask/cmd/list.rb
index 208464eda9d16..859d650a9ce0d 100644
--- a/Library/Homebrew/cask/cmd/list.rb
+++ b/Library/Homebrew/cask/cmd/list.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "cask/artifact/relocated"
diff --git a/Library/Homebrew/cask/cmd/outdated.rb b/Library/Homebrew/cask/cmd/outdated.rb
index 231648c09f49d..ff35a1f2d6bd6 100644
--- a/Library/Homebrew/cask/cmd/outdated.rb
+++ b/Library/Homebrew/cask/cmd/outdated.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 module Cask
diff --git a/Library/Homebrew/cask/cmd/reinstall.rb b/Library/Homebrew/cask/cmd/reinstall.rb
index c1e066bb1a467..79e0dccc444da 100644
--- a/Library/Homebrew/cask/cmd/reinstall.rb
+++ b/Library/Homebrew/cask/cmd/reinstall.rb
@@ -1,3 +1,4 @@
+# typed: true
 # frozen_string_literal: true
 
 module Cask
diff --git a/Library/Homebrew/cask/cmd/style.rb b/Library/Homebrew/cask/cmd/style.rb
index fc3cb601888e8..1d07156306b89 100644
--- a/Library/Homebrew/cask/cmd/style.rb
+++ b/Library/Homebrew/cask/cmd/style.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "json"
diff --git a/Library/Homebrew/cask/cmd/uninstall.rb b/Library/Homebrew/cask/cmd/uninstall.rb
index 89a85cd20a19f..8011193348a1b 100644
--- a/Library/Homebrew/cask/cmd/uninstall.rb
+++ b/Library/Homebrew/cask/cmd/uninstall.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 module Cask
diff --git a/Library/Homebrew/cask/cmd/upgrade.rb b/Library/Homebrew/cask/cmd/upgrade.rb
index e83cb4dd390ba..daf75368949ee 100644
--- a/Library/Homebrew/cask/cmd/upgrade.rb
+++ b/Library/Homebrew/cask/cmd/upgrade.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "env_config"
diff --git a/Library/Homebrew/cask/cmd/zap.rb b/Library/Homebrew/cask/cmd/zap.rb
index c2e981301bedb..2898883ef68bf 100644
--- a/Library/Homebrew/cask/cmd/zap.rb
+++ b/Library/Homebrew/cask/cmd/zap.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 module Cask
diff --git a/Library/Homebrew/cask/config.rb b/Library/Homebrew/cask/config.rb
index 04a71b9e3ea83..9f3532037889f 100644
--- a/Library/Homebrew/cask/config.rb
+++ b/Library/Homebrew/cask/config.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "json"
diff --git a/Library/Homebrew/cask/denylist.rb b/Library/Homebrew/cask/denylist.rb
index dda4326ba6a7a..8cbc9c37a2871 100644
--- a/Library/Homebrew/cask/denylist.rb
+++ b/Library/Homebrew/cask/denylist.rb
@@ -1,3 +1,4 @@
+# typed: true
 # frozen_string_literal: true
 
 module Cask
diff --git a/Library/Homebrew/cask/download.rb b/Library/Homebrew/cask/download.rb
index 16c1dbd81c123..12e8a575ff325 100644
--- a/Library/Homebrew/cask/download.rb
+++ b/Library/Homebrew/cask/download.rb
@@ -1,3 +1,4 @@
+# typed: true
 # frozen_string_literal: true
 
 require "fileutils"
diff --git a/Library/Homebrew/cask/dsl.rb b/Library/Homebrew/cask/dsl.rb
index 2f8b2c8cfd3cb..6ea0099400924 100644
--- a/Library/Homebrew/cask/dsl.rb
+++ b/Library/Homebrew/cask/dsl.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "locale"
diff --git a/Library/Homebrew/cask/dsl/appcast.rb b/Library/Homebrew/cask/dsl/appcast.rb
index 1c9ebc3600a51..c29a798192e32 100644
--- a/Library/Homebrew/cask/dsl/appcast.rb
+++ b/Library/Homebrew/cask/dsl/appcast.rb
@@ -1,3 +1,4 @@
+# typed: true
 # frozen_string_literal: true
 
 module Cask
diff --git a/Library/Homebrew/cask/dsl/base.rb b/Library/Homebrew/cask/dsl/base.rb
index f8d40aadd6e28..d1a29f61d7d88 100644
--- a/Library/Homebrew/cask/dsl/base.rb
+++ b/Library/Homebrew/cask/dsl/base.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "cask/utils"
diff --git a/Library/Homebrew/cask/dsl/caveats.rb b/Library/Homebrew/cask/dsl/caveats.rb
index d9933d992c13b..26d8d7fc794e7 100644
--- a/Library/Homebrew/cask/dsl/caveats.rb
+++ b/Library/Homebrew/cask/dsl/caveats.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 module Cask
diff --git a/Library/Homebrew/cask/dsl/conflicts_with.rb b/Library/Homebrew/cask/dsl/conflicts_with.rb
index f49f3a06200a7..da47113ab521f 100644
--- a/Library/Homebrew/cask/dsl/conflicts_with.rb
+++ b/Library/Homebrew/cask/dsl/conflicts_with.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "delegate"
diff --git a/Library/Homebrew/cask/dsl/container.rb b/Library/Homebrew/cask/dsl/container.rb
index 60cfbdb44e1a7..22c146f31906f 100644
--- a/Library/Homebrew/cask/dsl/container.rb
+++ b/Library/Homebrew/cask/dsl/container.rb
@@ -1,3 +1,4 @@
+# typed: true
 # frozen_string_literal: true
 
 require "unpack_strategy"
diff --git a/Library/Homebrew/cask/dsl/depends_on.rb b/Library/Homebrew/cask/dsl/depends_on.rb
index a3721b0530169..f78636609564b 100644
--- a/Library/Homebrew/cask/dsl/depends_on.rb
+++ b/Library/Homebrew/cask/dsl/depends_on.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "delegate"
diff --git a/Library/Homebrew/cask/dsl/postflight.rb b/Library/Homebrew/cask/dsl/postflight.rb
index cccfac6c9ed07..209533ba77487 100644
--- a/Library/Homebrew/cask/dsl/postflight.rb
+++ b/Library/Homebrew/cask/dsl/postflight.rb
@@ -1,3 +1,4 @@
+# typed: true
 # frozen_string_literal: true
 
 require "cask/staged"
diff --git a/Library/Homebrew/cask/dsl/preflight.rb b/Library/Homebrew/cask/dsl/preflight.rb
index eba210668d8b1..d1f0e57098ce2 100644
--- a/Library/Homebrew/cask/dsl/preflight.rb
+++ b/Library/Homebrew/cask/dsl/preflight.rb
@@ -1,3 +1,4 @@
+# typed: strict
 # frozen_string_literal: true
 
 module Cask
diff --git a/Library/Homebrew/cask/dsl/uninstall_postflight.rb b/Library/Homebrew/cask/dsl/uninstall_postflight.rb
index fac89d764e234..9dc523b05d0a0 100644
--- a/Library/Homebrew/cask/dsl/uninstall_postflight.rb
+++ b/Library/Homebrew/cask/dsl/uninstall_postflight.rb
@@ -1,3 +1,4 @@
+# typed: strict
 # frozen_string_literal: true
 
 module Cask
diff --git a/Library/Homebrew/cask/dsl/uninstall_preflight.rb b/Library/Homebrew/cask/dsl/uninstall_preflight.rb
index 770fc680a3d84..d35da3f51fa70 100644
--- a/Library/Homebrew/cask/dsl/uninstall_preflight.rb
+++ b/Library/Homebrew/cask/dsl/uninstall_preflight.rb
@@ -1,3 +1,4 @@
+# typed: strict
 # frozen_string_literal: true
 
 require "cask/staged"
diff --git a/Library/Homebrew/cask/dsl/version.rb b/Library/Homebrew/cask/dsl/version.rb
index 53d58b996121b..a43658b182c6b 100644
--- a/Library/Homebrew/cask/dsl/version.rb
+++ b/Library/Homebrew/cask/dsl/version.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 module Cask
diff --git a/Library/Homebrew/cask/exceptions.rb b/Library/Homebrew/cask/exceptions.rb
index e67831d383b10..645ea8a0e4f92 100644
--- a/Library/Homebrew/cask/exceptions.rb
+++ b/Library/Homebrew/cask/exceptions.rb
@@ -1,3 +1,4 @@
+# typed: true
 # frozen_string_literal: true
 
 module Cask
diff --git a/Library/Homebrew/cask/installer.rb b/Library/Homebrew/cask/installer.rb
index 6efeeada6aa5b..a5a43851b6cf1 100644
--- a/Library/Homebrew/cask/installer.rb
+++ b/Library/Homebrew/cask/installer.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "formula_installer"
diff --git a/Library/Homebrew/cask/macos.rb b/Library/Homebrew/cask/macos.rb
index cf65def619934..be2693b239111 100644
--- a/Library/Homebrew/cask/macos.rb
+++ b/Library/Homebrew/cask/macos.rb
@@ -1,3 +1,4 @@
+# typed: true
 # frozen_string_literal: true
 
 require "os/mac/version"
diff --git a/Library/Homebrew/cask/metadata.rb b/Library/Homebrew/cask/metadata.rb
index 8c12de10bb42e..4fcdd23f2792b 100644
--- a/Library/Homebrew/cask/metadata.rb
+++ b/Library/Homebrew/cask/metadata.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 module Cask
diff --git a/Library/Homebrew/cask/pkg.rb b/Library/Homebrew/cask/pkg.rb
index f015ee9de80ff..b5e625e6f4b6d 100644
--- a/Library/Homebrew/cask/pkg.rb
+++ b/Library/Homebrew/cask/pkg.rb
@@ -1,3 +1,4 @@
+# typed: true
 # frozen_string_literal: true
 
 require "cask/macos"
diff --git a/Library/Homebrew/cask/quarantine.rb b/Library/Homebrew/cask/quarantine.rb
index a90a7ea942c8e..14e74c7af0b0e 100644
--- a/Library/Homebrew/cask/quarantine.rb
+++ b/Library/Homebrew/cask/quarantine.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "development_tools"
diff --git a/Library/Homebrew/cask/staged.rb b/Library/Homebrew/cask/staged.rb
index 73dd826e9ab11..76dd66323ee71 100644
--- a/Library/Homebrew/cask/staged.rb
+++ b/Library/Homebrew/cask/staged.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "utils/user"
diff --git a/Library/Homebrew/cask/topological_hash.rb b/Library/Homebrew/cask/topological_hash.rb
index bfd85738273aa..79c0485bf4618 100644
--- a/Library/Homebrew/cask/topological_hash.rb
+++ b/Library/Homebrew/cask/topological_hash.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "tsort"
diff --git a/Library/Homebrew/cask/url.rb b/Library/Homebrew/cask/url.rb
index 723647ecfdc6a..92aaaf97792e4 100644
--- a/Library/Homebrew/cask/url.rb
+++ b/Library/Homebrew/cask/url.rb
@@ -1,4 +1,4 @@
-# typed: strict
+# typed: true
 # frozen_string_literal: true
 
 # Class corresponding to the `url` stanza.
diff --git a/Library/Homebrew/cask/utils.rb b/Library/Homebrew/cask/utils.rb
index 8cee5976004d8..47f804df23393 100644
--- a/Library/Homebrew/cask/utils.rb
+++ b/Library/Homebrew/cask/utils.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "utils/user"
diff --git a/Library/Homebrew/cask/verify.rb b/Library/Homebrew/cask/verify.rb
index f31d234c42fa8..65f9998dee45e 100644
--- a/Library/Homebrew/cask/verify.rb
+++ b/Library/Homebrew/cask/verify.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 module Cask
diff --git a/Library/Homebrew/cask_dependent.rb b/Library/Homebrew/cask_dependent.rb
index 96137a1a17b61..3f38a25fddd8d 100644
--- a/Library/Homebrew/cask_dependent.rb
+++ b/Library/Homebrew/cask_dependent.rb
@@ -1,3 +1,4 @@
+# typed: true
 # frozen_string_literal: true
 
 # An adapter for casks to provide dependency information in a formula-like interface
diff --git a/Library/Homebrew/caveats.rb b/Library/Homebrew/caveats.rb
index 01ad2bd278a29..18392648a8019 100644
--- a/Library/Homebrew/caveats.rb
+++ b/Library/Homebrew/caveats.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "language/python"
diff --git a/Library/Homebrew/checksum.rb b/Library/Homebrew/checksum.rb
index 84c6c62342808..7a3219513d75f 100644
--- a/Library/Homebrew/checksum.rb
+++ b/Library/Homebrew/checksum.rb
@@ -1,3 +1,4 @@
+# typed: true
 # frozen_string_literal: true
 
 # A formula's checksum.
diff --git a/Library/Homebrew/cleaner.rb b/Library/Homebrew/cleaner.rb
index d35ef9b7d11fd..9cf117c777f42 100644
--- a/Library/Homebrew/cleaner.rb
+++ b/Library/Homebrew/cleaner.rb
@@ -1,3 +1,4 @@
+# typed: true
 # frozen_string_literal: true
 
 # Cleans a newly installed keg.
diff --git a/Library/Homebrew/cleanup.rb b/Library/Homebrew/cleanup.rb
index bf0f424ae1877..9c53b917265fd 100644
--- a/Library/Homebrew/cleanup.rb
+++ b/Library/Homebrew/cleanup.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "utils/bottles"
diff --git a/Library/Homebrew/cli/args.rb b/Library/Homebrew/cli/args.rb
index ab5d2579a2a5f..1a779dcbdfe61 100644
--- a/Library/Homebrew/cli/args.rb
+++ b/Library/Homebrew/cli/args.rb
@@ -1,3 +1,4 @@
+# typed: true
 # frozen_string_literal: true
 
 require "cli/named_args"
diff --git a/Library/Homebrew/cli/named_args.rb b/Library/Homebrew/cli/named_args.rb
index 362bd1f7cc328..dad9e9b22d32b 100644
--- a/Library/Homebrew/cli/named_args.rb
+++ b/Library/Homebrew/cli/named_args.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "delegate"
diff --git a/Library/Homebrew/cli/parser.rb b/Library/Homebrew/cli/parser.rb
index 179c4c17a4df4..913cfbc5291fa 100644
--- a/Library/Homebrew/cli/parser.rb
+++ b/Library/Homebrew/cli/parser.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "env_config"
diff --git a/Library/Homebrew/cmd/--cache.rb b/Library/Homebrew/cmd/--cache.rb
index 240d145dfa0e1..3a5270806547f 100644
--- a/Library/Homebrew/cmd/--cache.rb
+++ b/Library/Homebrew/cmd/--cache.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "fetch"
diff --git a/Library/Homebrew/cmd/--caskroom.rb b/Library/Homebrew/cmd/--caskroom.rb
index a0964ad7ceab8..b53574fd0a045 100644
--- a/Library/Homebrew/cmd/--caskroom.rb
+++ b/Library/Homebrew/cmd/--caskroom.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 module Homebrew
diff --git a/Library/Homebrew/cmd/--cellar.rb b/Library/Homebrew/cmd/--cellar.rb
index e300df269ec36..2af781142cc4e 100644
--- a/Library/Homebrew/cmd/--cellar.rb
+++ b/Library/Homebrew/cmd/--cellar.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "cli/parser"
diff --git a/Library/Homebrew/cmd/--env.rb b/Library/Homebrew/cmd/--env.rb
index f25dc0bb06f3e..45b609ca53cc8 100644
--- a/Library/Homebrew/cmd/--env.rb
+++ b/Library/Homebrew/cmd/--env.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "extend/ENV"
diff --git a/Library/Homebrew/cmd/--prefix.rb b/Library/Homebrew/cmd/--prefix.rb
index 01fd584ad7fbc..b451a24f7b7b5 100644
--- a/Library/Homebrew/cmd/--prefix.rb
+++ b/Library/Homebrew/cmd/--prefix.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "cli/parser"
diff --git a/Library/Homebrew/cmd/--repository.rb b/Library/Homebrew/cmd/--repository.rb
index 211f1c0c2f69f..042c39b36d84c 100644
--- a/Library/Homebrew/cmd/--repository.rb
+++ b/Library/Homebrew/cmd/--repository.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "cli/parser"
diff --git a/Library/Homebrew/cmd/--version.rb b/Library/Homebrew/cmd/--version.rb
index 037a8cc752285..93595a9a3dda8 100644
--- a/Library/Homebrew/cmd/--version.rb
+++ b/Library/Homebrew/cmd/--version.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "cli/parser"
diff --git a/Library/Homebrew/cmd/analytics.rb b/Library/Homebrew/cmd/analytics.rb
index 4c8ef458f73ac..957b175b859e1 100644
--- a/Library/Homebrew/cmd/analytics.rb
+++ b/Library/Homebrew/cmd/analytics.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "cli/parser"
diff --git a/Library/Homebrew/cmd/cask.rb b/Library/Homebrew/cmd/cask.rb
index 1a51405ecd199..cbd284fc2e5fe 100644
--- a/Library/Homebrew/cmd/cask.rb
+++ b/Library/Homebrew/cmd/cask.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "cask/cmd"
diff --git a/Library/Homebrew/cmd/cleanup.rb b/Library/Homebrew/cmd/cleanup.rb
index 66fe520342476..c0294392d73c4 100644
--- a/Library/Homebrew/cmd/cleanup.rb
+++ b/Library/Homebrew/cmd/cleanup.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "cleanup"
diff --git a/Library/Homebrew/cmd/commands.rb b/Library/Homebrew/cmd/commands.rb
index 29fd687555ca6..cbcb36a495b14 100644
--- a/Library/Homebrew/cmd/commands.rb
+++ b/Library/Homebrew/cmd/commands.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "cli/parser"
diff --git a/Library/Homebrew/cmd/config.rb b/Library/Homebrew/cmd/config.rb
index d0519bf4ac06f..562d9a9f1c948 100644
--- a/Library/Homebrew/cmd/config.rb
+++ b/Library/Homebrew/cmd/config.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "system_config"
diff --git a/Library/Homebrew/cmd/deps.rb b/Library/Homebrew/cmd/deps.rb
index 2a99942008e48..a5f8ade23aa17 100644
--- a/Library/Homebrew/cmd/deps.rb
+++ b/Library/Homebrew/cmd/deps.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "formula"
diff --git a/Library/Homebrew/cmd/desc.rb b/Library/Homebrew/cmd/desc.rb
index 5c1e143d21a06..e9616f1749a77 100644
--- a/Library/Homebrew/cmd/desc.rb
+++ b/Library/Homebrew/cmd/desc.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "descriptions"
diff --git a/Library/Homebrew/cmd/doctor.rb b/Library/Homebrew/cmd/doctor.rb
index 43eb385c2cf41..5d10f9f6553fc 100644
--- a/Library/Homebrew/cmd/doctor.rb
+++ b/Library/Homebrew/cmd/doctor.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "diagnostic"
diff --git a/Library/Homebrew/cmd/fetch.rb b/Library/Homebrew/cmd/fetch.rb
index 6d306af2b00fb..9baa5cec4e4d1 100644
--- a/Library/Homebrew/cmd/fetch.rb
+++ b/Library/Homebrew/cmd/fetch.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "formula"
diff --git a/Library/Homebrew/cmd/gist-logs.rb b/Library/Homebrew/cmd/gist-logs.rb
index b40b299af2fee..0947d43039782 100644
--- a/Library/Homebrew/cmd/gist-logs.rb
+++ b/Library/Homebrew/cmd/gist-logs.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "formula"
diff --git a/Library/Homebrew/cmd/help.rb b/Library/Homebrew/cmd/help.rb
index acd6849ca5061..bcad2600c1068 100644
--- a/Library/Homebrew/cmd/help.rb
+++ b/Library/Homebrew/cmd/help.rb
@@ -1,3 +1,4 @@
+# typed: true
 # frozen_string_literal: true
 
 require "help"
diff --git a/Library/Homebrew/cmd/home.rb b/Library/Homebrew/cmd/home.rb
index 8d3f2d7b70f1d..2c147bb6d666a 100644
--- a/Library/Homebrew/cmd/home.rb
+++ b/Library/Homebrew/cmd/home.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "cli/parser"
diff --git a/Library/Homebrew/cmd/info.rb b/Library/Homebrew/cmd/info.rb
index 0807ee16bed62..d715e89a52d9e 100644
--- a/Library/Homebrew/cmd/info.rb
+++ b/Library/Homebrew/cmd/info.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "missing_formula"
diff --git a/Library/Homebrew/cmd/install.rb b/Library/Homebrew/cmd/install.rb
index 2b62240616d4b..576c780dc4f36 100644
--- a/Library/Homebrew/cmd/install.rb
+++ b/Library/Homebrew/cmd/install.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "cask/config"
diff --git a/Library/Homebrew/cmd/leaves.rb b/Library/Homebrew/cmd/leaves.rb
index 1768227b79e02..d84468f5fd8c5 100644
--- a/Library/Homebrew/cmd/leaves.rb
+++ b/Library/Homebrew/cmd/leaves.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "formula"
diff --git a/Library/Homebrew/cmd/link.rb b/Library/Homebrew/cmd/link.rb
index 2ec520a89409f..ad48c17792e43 100644
--- a/Library/Homebrew/cmd/link.rb
+++ b/Library/Homebrew/cmd/link.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "ostruct"
diff --git a/Library/Homebrew/cmd/list.rb b/Library/Homebrew/cmd/list.rb
index 3e55a883372a0..40f5875f9f840 100644
--- a/Library/Homebrew/cmd/list.rb
+++ b/Library/Homebrew/cmd/list.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "metafiles"
diff --git a/Library/Homebrew/cmd/log.rb b/Library/Homebrew/cmd/log.rb
index 347467641e012..f2d8b1c4e187d 100644
--- a/Library/Homebrew/cmd/log.rb
+++ b/Library/Homebrew/cmd/log.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "formula"
diff --git a/Library/Homebrew/cmd/migrate.rb b/Library/Homebrew/cmd/migrate.rb
index df28df344a49e..f400036c78b9b 100644
--- a/Library/Homebrew/cmd/migrate.rb
+++ b/Library/Homebrew/cmd/migrate.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "migrator"
diff --git a/Library/Homebrew/cmd/missing.rb b/Library/Homebrew/cmd/missing.rb
index 73909a422950f..4345227585a02 100644
--- a/Library/Homebrew/cmd/missing.rb
+++ b/Library/Homebrew/cmd/missing.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "formula"
diff --git a/Library/Homebrew/cmd/options.rb b/Library/Homebrew/cmd/options.rb
index 4c796ecd7a52d..6ecc3c7fc97d3 100644
--- a/Library/Homebrew/cmd/options.rb
+++ b/Library/Homebrew/cmd/options.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "formula"
diff --git a/Library/Homebrew/cmd/outdated.rb b/Library/Homebrew/cmd/outdated.rb
index e6f148d8fba9f..d5c5458ad9ce3 100644
--- a/Library/Homebrew/cmd/outdated.rb
+++ b/Library/Homebrew/cmd/outdated.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "formula"
diff --git a/Library/Homebrew/cmd/pin.rb b/Library/Homebrew/cmd/pin.rb
index 5fab7725494e9..0ca4458d927d1 100644
--- a/Library/Homebrew/cmd/pin.rb
+++ b/Library/Homebrew/cmd/pin.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "formula"
diff --git a/Library/Homebrew/cmd/postinstall.rb b/Library/Homebrew/cmd/postinstall.rb
index 7b0a7220cfaa0..1b4885a36a3c0 100644
--- a/Library/Homebrew/cmd/postinstall.rb
+++ b/Library/Homebrew/cmd/postinstall.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "sandbox"
diff --git a/Library/Homebrew/cmd/readall.rb b/Library/Homebrew/cmd/readall.rb
index a4f1d47a5d8e5..5bfa660543755 100644
--- a/Library/Homebrew/cmd/readall.rb
+++ b/Library/Homebrew/cmd/readall.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "readall"
diff --git a/Library/Homebrew/cmd/reinstall.rb b/Library/Homebrew/cmd/reinstall.rb
index 1c9d62a08f6f4..93e4c12936f5a 100644
--- a/Library/Homebrew/cmd/reinstall.rb
+++ b/Library/Homebrew/cmd/reinstall.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "formula_installer"
diff --git a/Library/Homebrew/cmd/search.rb b/Library/Homebrew/cmd/search.rb
index 2464cd1f44510..1bd005c8efd6a 100644
--- a/Library/Homebrew/cmd/search.rb
+++ b/Library/Homebrew/cmd/search.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "formula"
diff --git a/Library/Homebrew/cmd/switch.rb b/Library/Homebrew/cmd/switch.rb
index 33a15d1c1f239..94389f2b8e478 100644
--- a/Library/Homebrew/cmd/switch.rb
+++ b/Library/Homebrew/cmd/switch.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "formula"
diff --git a/Library/Homebrew/cmd/tap-info.rb b/Library/Homebrew/cmd/tap-info.rb
index 56a099d12e0ae..6c01e4172abfb 100644
--- a/Library/Homebrew/cmd/tap-info.rb
+++ b/Library/Homebrew/cmd/tap-info.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "cli/parser"
diff --git a/Library/Homebrew/cmd/tap.rb b/Library/Homebrew/cmd/tap.rb
index 0e2d0cbca964e..df6f428ff121c 100644
--- a/Library/Homebrew/cmd/tap.rb
+++ b/Library/Homebrew/cmd/tap.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "cli/parser"
diff --git a/Library/Homebrew/cmd/uninstall.rb b/Library/Homebrew/cmd/uninstall.rb
index 2cfe6c600b869..41a0117c6e50c 100644
--- a/Library/Homebrew/cmd/uninstall.rb
+++ b/Library/Homebrew/cmd/uninstall.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "keg"
diff --git a/Library/Homebrew/cmd/unlink.rb b/Library/Homebrew/cmd/unlink.rb
index b727164827420..080bcd16361ee 100644
--- a/Library/Homebrew/cmd/unlink.rb
+++ b/Library/Homebrew/cmd/unlink.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "ostruct"
diff --git a/Library/Homebrew/cmd/unpin.rb b/Library/Homebrew/cmd/unpin.rb
index 8a56ebb6caa04..77bf7b1576363 100644
--- a/Library/Homebrew/cmd/unpin.rb
+++ b/Library/Homebrew/cmd/unpin.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "formula"
diff --git a/Library/Homebrew/cmd/untap.rb b/Library/Homebrew/cmd/untap.rb
index 5209dd26c39de..b8f6a93016743 100644
--- a/Library/Homebrew/cmd/untap.rb
+++ b/Library/Homebrew/cmd/untap.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "cli/parser"
diff --git a/Library/Homebrew/cmd/update-report.rb b/Library/Homebrew/cmd/update-report.rb
index a140e10b27fb5..e0a5877b9a3c2 100644
--- a/Library/Homebrew/cmd/update-report.rb
+++ b/Library/Homebrew/cmd/update-report.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "formula_versions"
diff --git a/Library/Homebrew/cmd/upgrade.rb b/Library/Homebrew/cmd/upgrade.rb
index a8fb5fb682985..c2ece9f42e89f 100644
--- a/Library/Homebrew/cmd/upgrade.rb
+++ b/Library/Homebrew/cmd/upgrade.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "cli/parser"
diff --git a/Library/Homebrew/cmd/uses.rb b/Library/Homebrew/cmd/uses.rb
index b63dc064bb077..8b2f91243636f 100644
--- a/Library/Homebrew/cmd/uses.rb
+++ b/Library/Homebrew/cmd/uses.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 # `brew uses foo bar` returns formulae that use both foo and bar
diff --git a/Library/Homebrew/commands.rb b/Library/Homebrew/commands.rb
index 4654d4e580770..bdfe4a33983b9 100644
--- a/Library/Homebrew/commands.rb
+++ b/Library/Homebrew/commands.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "cask/cmd"
diff --git a/Library/Homebrew/compat.rb b/Library/Homebrew/compat.rb
index d14810694aeda..04870d0a234c2 100644
--- a/Library/Homebrew/compat.rb
+++ b/Library/Homebrew/compat.rb
@@ -1,3 +1,4 @@
+# typed: strict
 # frozen_string_literal: true
 
 require "compat/dependencies_helpers"
diff --git a/Library/Homebrew/compat/cli/parser.rb b/Library/Homebrew/compat/cli/parser.rb
index ee9e3964ad600..c1678d15965ae 100644
--- a/Library/Homebrew/compat/cli/parser.rb
+++ b/Library/Homebrew/compat/cli/parser.rb
@@ -1,3 +1,4 @@
+# typed: true
 # frozen_string_literal: true
 
 module Homebrew
diff --git a/Library/Homebrew/compat/dependencies_helpers.rb b/Library/Homebrew/compat/dependencies_helpers.rb
index 5bb5461c0938c..21122e4c35f03 100644
--- a/Library/Homebrew/compat/dependencies_helpers.rb
+++ b/Library/Homebrew/compat/dependencies_helpers.rb
@@ -1,3 +1,4 @@
+# typed: true
 # frozen_string_literal: true
 
 require "cli/args"
diff --git a/Library/Homebrew/compat/extend/nil.rb b/Library/Homebrew/compat/extend/nil.rb
index 0e5bb0289489d..5e521a4367c38 100644
--- a/Library/Homebrew/compat/extend/nil.rb
+++ b/Library/Homebrew/compat/extend/nil.rb
@@ -1,3 +1,4 @@
+# typed: true
 # frozen_string_literal: true
 
 class NilClass
diff --git a/Library/Homebrew/compat/extend/string.rb b/Library/Homebrew/compat/extend/string.rb
index a786035a8e5df..bdbed56112935 100644
--- a/Library/Homebrew/compat/extend/string.rb
+++ b/Library/Homebrew/compat/extend/string.rb
@@ -1,3 +1,4 @@
+# typed: true
 # frozen_string_literal: true
 
 class String
diff --git a/Library/Homebrew/compat/formula.rb b/Library/Homebrew/compat/formula.rb
index 82a0faa8a4838..0f08e86d9fc8c 100644
--- a/Library/Homebrew/compat/formula.rb
+++ b/Library/Homebrew/compat/formula.rb
@@ -1,3 +1,4 @@
+# typed: true
 # frozen_string_literal: true
 
 class Formula
diff --git a/Library/Homebrew/compat/language/haskell.rb b/Library/Homebrew/compat/language/haskell.rb
index b03fb503e18a4..3619e88c0209b 100644
--- a/Library/Homebrew/compat/language/haskell.rb
+++ b/Library/Homebrew/compat/language/haskell.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 module Language
diff --git a/Library/Homebrew/compat/language/java.rb b/Library/Homebrew/compat/language/java.rb
index ba6b77fb05d21..4a23f7a6c2b3d 100644
--- a/Library/Homebrew/compat/language/java.rb
+++ b/Library/Homebrew/compat/language/java.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 module Language
diff --git a/Library/Homebrew/compat/language/python.rb b/Library/Homebrew/compat/language/python.rb
index 8afd2cdcba2b4..abb4673f6bed7 100644
--- a/Library/Homebrew/compat/language/python.rb
+++ b/Library/Homebrew/compat/language/python.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 module Language
diff --git a/Library/Homebrew/compat/os/mac.rb b/Library/Homebrew/compat/os/mac.rb
index 275d69b308394..ab64aeac969ff 100644
--- a/Library/Homebrew/compat/os/mac.rb
+++ b/Library/Homebrew/compat/os/mac.rb
@@ -1,3 +1,4 @@
+# typed: true
 # frozen_string_literal: true
 
 module OS
diff --git a/Library/Homebrew/compilers.rb b/Library/Homebrew/compilers.rb
index ca19f896f5498..50ffe89799d52 100644
--- a/Library/Homebrew/compilers.rb
+++ b/Library/Homebrew/compilers.rb
@@ -1,3 +1,4 @@
+# typed: true
 # frozen_string_literal: true
 
 # @private
diff --git a/Library/Homebrew/config.rb b/Library/Homebrew/config.rb
index 6cbc3709e5892..feecc8373a878 100644
--- a/Library/Homebrew/config.rb
+++ b/Library/Homebrew/config.rb
@@ -1,3 +1,4 @@
+# typed: true
 # frozen_string_literal: true
 
 raise "HOMEBREW_BREW_FILE was not exported! Please call bin/brew directly!" unless ENV["HOMEBREW_BREW_FILE"]
diff --git a/Library/Homebrew/context.rb b/Library/Homebrew/context.rb
index 46407ed5bbaea..60c354af1e967 100644
--- a/Library/Homebrew/context.rb
+++ b/Library/Homebrew/context.rb
@@ -1,3 +1,4 @@
+# typed: true
 # frozen_string_literal: true
 
 require "monitor"
diff --git a/Library/Homebrew/cxxstdlib.rb b/Library/Homebrew/cxxstdlib.rb
index e2754c51b7a88..fad219e565680 100644
--- a/Library/Homebrew/cxxstdlib.rb
+++ b/Library/Homebrew/cxxstdlib.rb
@@ -1,3 +1,4 @@
+# typed: true
 # frozen_string_literal: true
 
 require "compilers"
diff --git a/Library/Homebrew/debrew.rb b/Library/Homebrew/debrew.rb
index 6382cbca0c3cd..54a5b9af0325d 100644
--- a/Library/Homebrew/debrew.rb
+++ b/Library/Homebrew/debrew.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "mutex_m"
diff --git a/Library/Homebrew/debrew/irb.rb b/Library/Homebrew/debrew/irb.rb
index b88aa44c731b0..6c2d285c13d49 100644
--- a/Library/Homebrew/debrew/irb.rb
+++ b/Library/Homebrew/debrew/irb.rb
@@ -1,3 +1,4 @@
+# typed: true
 # frozen_string_literal: true
 
 require "irb"
diff --git a/Library/Homebrew/dependable.rb b/Library/Homebrew/dependable.rb
index 89dfe083c2350..3d036f41d6fe9 100644
--- a/Library/Homebrew/dependable.rb
+++ b/Library/Homebrew/dependable.rb
@@ -1,3 +1,4 @@
+# typed: true
 # frozen_string_literal: true
 
 require "options"
diff --git a/Library/Homebrew/dependencies.rb b/Library/Homebrew/dependencies.rb
index 07d79190d5523..2764048ce0389 100644
--- a/Library/Homebrew/dependencies.rb
+++ b/Library/Homebrew/dependencies.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "delegate"
diff --git a/Library/Homebrew/dependencies_helpers.rb b/Library/Homebrew/dependencies_helpers.rb
index 998cef14a2013..98507958db58a 100644
--- a/Library/Homebrew/dependencies_helpers.rb
+++ b/Library/Homebrew/dependencies_helpers.rb
@@ -1,3 +1,4 @@
+# typed: true
 # frozen_string_literal: true
 
 require "cask_dependent"
diff --git a/Library/Homebrew/dependency.rb b/Library/Homebrew/dependency.rb
index 29a2284c7fe2f..c98d46b0e6af7 100644
--- a/Library/Homebrew/dependency.rb
+++ b/Library/Homebrew/dependency.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "dependable"
diff --git a/Library/Homebrew/dependency_collector.rb b/Library/Homebrew/dependency_collector.rb
index 7420c2003bba0..80b8dbab0feaa 100644
--- a/Library/Homebrew/dependency_collector.rb
+++ b/Library/Homebrew/dependency_collector.rb
@@ -1,3 +1,4 @@
+# typed: true
 # frozen_string_literal: true
 
 require "dependency"
diff --git a/Library/Homebrew/deprecate_disable.rb b/Library/Homebrew/deprecate_disable.rb
index 3423f90e30060..a1239e0aa8c03 100644
--- a/Library/Homebrew/deprecate_disable.rb
+++ b/Library/Homebrew/deprecate_disable.rb
@@ -1,3 +1,4 @@
+# typed: true
 # frozen_string_literal: true
 
 # Helper module for handling disable! and deprecate!
diff --git a/Library/Homebrew/description_cache_store.rb b/Library/Homebrew/description_cache_store.rb
index c90523abce052..4e2d3e7e25956 100644
--- a/Library/Homebrew/description_cache_store.rb
+++ b/Library/Homebrew/description_cache_store.rb
@@ -1,3 +1,4 @@
+# typed: true
 # frozen_string_literal: true
 
 require "set"
diff --git a/Library/Homebrew/descriptions.rb b/Library/Homebrew/descriptions.rb
index 6ba21bed47e26..8f980de1c6e84 100644
--- a/Library/Homebrew/descriptions.rb
+++ b/Library/Homebrew/descriptions.rb
@@ -1,3 +1,4 @@
+# typed: true
 # frozen_string_literal: true
 
 require "formula"
diff --git a/Library/Homebrew/dev-cmd/audit.rb b/Library/Homebrew/dev-cmd/audit.rb
index c6c7b47af67c5..3f72f021c3584 100644
--- a/Library/Homebrew/dev-cmd/audit.rb
+++ b/Library/Homebrew/dev-cmd/audit.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "formula"
diff --git a/Library/Homebrew/dev-cmd/bottle.rb b/Library/Homebrew/dev-cmd/bottle.rb
index fb282e5f80da5..e9b9e4b157f4a 100644
--- a/Library/Homebrew/dev-cmd/bottle.rb
+++ b/Library/Homebrew/dev-cmd/bottle.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "formula"
diff --git a/Library/Homebrew/dev-cmd/bump-cask-pr.rb b/Library/Homebrew/dev-cmd/bump-cask-pr.rb
index 6c9fd09ceebb7..a9ecedc589c56 100644
--- a/Library/Homebrew/dev-cmd/bump-cask-pr.rb
+++ b/Library/Homebrew/dev-cmd/bump-cask-pr.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "cask"
diff --git a/Library/Homebrew/dev-cmd/bump-formula-pr.rb b/Library/Homebrew/dev-cmd/bump-formula-pr.rb
index e005a7e4c37a6..dc4bb5a06b871 100644
--- a/Library/Homebrew/dev-cmd/bump-formula-pr.rb
+++ b/Library/Homebrew/dev-cmd/bump-formula-pr.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "formula"
diff --git a/Library/Homebrew/dev-cmd/bump-revision.rb b/Library/Homebrew/dev-cmd/bump-revision.rb
index d66585b966a81..aa53caaf476d1 100644
--- a/Library/Homebrew/dev-cmd/bump-revision.rb
+++ b/Library/Homebrew/dev-cmd/bump-revision.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "formula"
diff --git a/Library/Homebrew/dev-cmd/bump.rb b/Library/Homebrew/dev-cmd/bump.rb
index 3df802b351c8e..543d75186330d 100644
--- a/Library/Homebrew/dev-cmd/bump.rb
+++ b/Library/Homebrew/dev-cmd/bump.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "cli/parser"
diff --git a/Library/Homebrew/dev-cmd/cat.rb b/Library/Homebrew/dev-cmd/cat.rb
index 4d7ef44a9b31e..3415e03e6e304 100644
--- a/Library/Homebrew/dev-cmd/cat.rb
+++ b/Library/Homebrew/dev-cmd/cat.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "cli/parser"
diff --git a/Library/Homebrew/dev-cmd/command.rb b/Library/Homebrew/dev-cmd/command.rb
index cb928bc577914..7c2f6e37ce076 100644
--- a/Library/Homebrew/dev-cmd/command.rb
+++ b/Library/Homebrew/dev-cmd/command.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "commands"
diff --git a/Library/Homebrew/dev-cmd/create.rb b/Library/Homebrew/dev-cmd/create.rb
index 85b2f857e7f45..1d45047eff528 100644
--- a/Library/Homebrew/dev-cmd/create.rb
+++ b/Library/Homebrew/dev-cmd/create.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "formula"
diff --git a/Library/Homebrew/dev-cmd/diy.rb b/Library/Homebrew/dev-cmd/diy.rb
index f58ae2fa9c4b7..6018ae1e65696 100644
--- a/Library/Homebrew/dev-cmd/diy.rb
+++ b/Library/Homebrew/dev-cmd/diy.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "formula"
diff --git a/Library/Homebrew/dev-cmd/edit.rb b/Library/Homebrew/dev-cmd/edit.rb
index 698a131ba0f18..9929ce1531c11 100644
--- a/Library/Homebrew/dev-cmd/edit.rb
+++ b/Library/Homebrew/dev-cmd/edit.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "formula"
diff --git a/Library/Homebrew/dev-cmd/extract.rb b/Library/Homebrew/dev-cmd/extract.rb
index f10ede111ca9c..f64973e172766 100644
--- a/Library/Homebrew/dev-cmd/extract.rb
+++ b/Library/Homebrew/dev-cmd/extract.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "cli/parser"
diff --git a/Library/Homebrew/dev-cmd/formula.rb b/Library/Homebrew/dev-cmd/formula.rb
index ef18d85018395..b5e7ccaec1d94 100644
--- a/Library/Homebrew/dev-cmd/formula.rb
+++ b/Library/Homebrew/dev-cmd/formula.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "formula"
diff --git a/Library/Homebrew/dev-cmd/install-bundler-gems.rb b/Library/Homebrew/dev-cmd/install-bundler-gems.rb
index 20ba27eb714fc..b15b49ee971a6 100644
--- a/Library/Homebrew/dev-cmd/install-bundler-gems.rb
+++ b/Library/Homebrew/dev-cmd/install-bundler-gems.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "formula"
diff --git a/Library/Homebrew/dev-cmd/irb.rb b/Library/Homebrew/dev-cmd/irb.rb
index fb91ecc63a81f..c5a0a29b8b475 100644
--- a/Library/Homebrew/dev-cmd/irb.rb
+++ b/Library/Homebrew/dev-cmd/irb.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "cli/parser"
diff --git a/Library/Homebrew/dev-cmd/linkage.rb b/Library/Homebrew/dev-cmd/linkage.rb
index e090e413bd1c8..631e9ec65b245 100644
--- a/Library/Homebrew/dev-cmd/linkage.rb
+++ b/Library/Homebrew/dev-cmd/linkage.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "cache_store"
diff --git a/Library/Homebrew/dev-cmd/livecheck.rb b/Library/Homebrew/dev-cmd/livecheck.rb
index 89fe49ea29caf..d177768026cda 100644
--- a/Library/Homebrew/dev-cmd/livecheck.rb
+++ b/Library/Homebrew/dev-cmd/livecheck.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "cli/parser"
diff --git a/Library/Homebrew/dev-cmd/man.rb b/Library/Homebrew/dev-cmd/man.rb
index cea445b3d71f2..0a17cdc96a92a 100644
--- a/Library/Homebrew/dev-cmd/man.rb
+++ b/Library/Homebrew/dev-cmd/man.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "formula"
diff --git a/Library/Homebrew/dev-cmd/mirror.rb b/Library/Homebrew/dev-cmd/mirror.rb
index c8dfa5df5cb94..7790c32fed97d 100644
--- a/Library/Homebrew/dev-cmd/mirror.rb
+++ b/Library/Homebrew/dev-cmd/mirror.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "bintray"
diff --git a/Library/Homebrew/dev-cmd/pr-automerge.rb b/Library/Homebrew/dev-cmd/pr-automerge.rb
index 78c4097a125d9..40c4007f89544 100644
--- a/Library/Homebrew/dev-cmd/pr-automerge.rb
+++ b/Library/Homebrew/dev-cmd/pr-automerge.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "cli/parser"
diff --git a/Library/Homebrew/dev-cmd/pr-publish.rb b/Library/Homebrew/dev-cmd/pr-publish.rb
index 55d32abf5bde3..86b675293b699 100644
--- a/Library/Homebrew/dev-cmd/pr-publish.rb
+++ b/Library/Homebrew/dev-cmd/pr-publish.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "cli/parser"
diff --git a/Library/Homebrew/dev-cmd/pr-pull.rb b/Library/Homebrew/dev-cmd/pr-pull.rb
index 3effc9eaa211f..0c4c0d7219243 100644
--- a/Library/Homebrew/dev-cmd/pr-pull.rb
+++ b/Library/Homebrew/dev-cmd/pr-pull.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "download_strategy"
diff --git a/Library/Homebrew/dev-cmd/pr-upload.rb b/Library/Homebrew/dev-cmd/pr-upload.rb
index 67186565cdeee..566b4e020f08c 100644
--- a/Library/Homebrew/dev-cmd/pr-upload.rb
+++ b/Library/Homebrew/dev-cmd/pr-upload.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "cli/parser"
diff --git a/Library/Homebrew/dev-cmd/prof.rb b/Library/Homebrew/dev-cmd/prof.rb
index 3abb9b9ab3564..2c40d0b7fc6a5 100644
--- a/Library/Homebrew/dev-cmd/prof.rb
+++ b/Library/Homebrew/dev-cmd/prof.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "cli/parser"
diff --git a/Library/Homebrew/dev-cmd/pull.rb b/Library/Homebrew/dev-cmd/pull.rb
index 045e1c241876a..ce279b1f801a6 100644
--- a/Library/Homebrew/dev-cmd/pull.rb
+++ b/Library/Homebrew/dev-cmd/pull.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "net/http"
diff --git a/Library/Homebrew/dev-cmd/release-notes.rb b/Library/Homebrew/dev-cmd/release-notes.rb
index 76266028c3971..7288d85e12ff3 100644
--- a/Library/Homebrew/dev-cmd/release-notes.rb
+++ b/Library/Homebrew/dev-cmd/release-notes.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "cli/parser"
diff --git a/Library/Homebrew/dev-cmd/ruby.rb b/Library/Homebrew/dev-cmd/ruby.rb
index 13477d5f6d6c7..4e4f014d0890e 100644
--- a/Library/Homebrew/dev-cmd/ruby.rb
+++ b/Library/Homebrew/dev-cmd/ruby.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "cli/parser"
diff --git a/Library/Homebrew/dev-cmd/sh.rb b/Library/Homebrew/dev-cmd/sh.rb
index 3cfb769484192..a1f35adc14ad4 100644
--- a/Library/Homebrew/dev-cmd/sh.rb
+++ b/Library/Homebrew/dev-cmd/sh.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "extend/ENV"
diff --git a/Library/Homebrew/dev-cmd/sponsors.rb b/Library/Homebrew/dev-cmd/sponsors.rb
index 568daa945272b..0e3bece7d21e2 100644
--- a/Library/Homebrew/dev-cmd/sponsors.rb
+++ b/Library/Homebrew/dev-cmd/sponsors.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "cli/parser"
diff --git a/Library/Homebrew/dev-cmd/style.rb b/Library/Homebrew/dev-cmd/style.rb
index 26da075aa8f68..8b3d5439a21e8 100644
--- a/Library/Homebrew/dev-cmd/style.rb
+++ b/Library/Homebrew/dev-cmd/style.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "json"
diff --git a/Library/Homebrew/dev-cmd/tap-new.rb b/Library/Homebrew/dev-cmd/tap-new.rb
index 16e46f2784e60..7b587570bed55 100644
--- a/Library/Homebrew/dev-cmd/tap-new.rb
+++ b/Library/Homebrew/dev-cmd/tap-new.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "tap"
diff --git a/Library/Homebrew/dev-cmd/test.rb b/Library/Homebrew/dev-cmd/test.rb
index 50c052723e54f..087f5f5510480 100644
--- a/Library/Homebrew/dev-cmd/test.rb
+++ b/Library/Homebrew/dev-cmd/test.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "extend/ENV"
diff --git a/Library/Homebrew/dev-cmd/tests.rb b/Library/Homebrew/dev-cmd/tests.rb
index 7512cabb88b03..428177807e679 100644
--- a/Library/Homebrew/dev-cmd/tests.rb
+++ b/Library/Homebrew/dev-cmd/tests.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "cli/parser"
diff --git a/Library/Homebrew/dev-cmd/typecheck.rb b/Library/Homebrew/dev-cmd/typecheck.rb
index 98825c6698ed9..b4af45936c10d 100644
--- a/Library/Homebrew/dev-cmd/typecheck.rb
+++ b/Library/Homebrew/dev-cmd/typecheck.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "cli/parser"
diff --git a/Library/Homebrew/dev-cmd/unpack.rb b/Library/Homebrew/dev-cmd/unpack.rb
index e4b5dcc4864ff..e88b9ef2cc851 100644
--- a/Library/Homebrew/dev-cmd/unpack.rb
+++ b/Library/Homebrew/dev-cmd/unpack.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "stringio"
diff --git a/Library/Homebrew/dev-cmd/update-license-data.rb b/Library/Homebrew/dev-cmd/update-license-data.rb
index f22b836239b50..6d11bca3581f6 100644
--- a/Library/Homebrew/dev-cmd/update-license-data.rb
+++ b/Library/Homebrew/dev-cmd/update-license-data.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "cli/parser"
diff --git a/Library/Homebrew/dev-cmd/update-python-resources.rb b/Library/Homebrew/dev-cmd/update-python-resources.rb
index c5ce307a661d0..e109887bbc900 100644
--- a/Library/Homebrew/dev-cmd/update-python-resources.rb
+++ b/Library/Homebrew/dev-cmd/update-python-resources.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "cli/parser"
diff --git a/Library/Homebrew/dev-cmd/update-test.rb b/Library/Homebrew/dev-cmd/update-test.rb
index d05f445ea554f..c2c6b0f60b437 100644
--- a/Library/Homebrew/dev-cmd/update-test.rb
+++ b/Library/Homebrew/dev-cmd/update-test.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "cli/parser"
diff --git a/Library/Homebrew/dev-cmd/vendor-gems.rb b/Library/Homebrew/dev-cmd/vendor-gems.rb
index d702e7df69ab6..c336427a40bbf 100644
--- a/Library/Homebrew/dev-cmd/vendor-gems.rb
+++ b/Library/Homebrew/dev-cmd/vendor-gems.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "formula"
diff --git a/Library/Homebrew/development_tools.rb b/Library/Homebrew/development_tools.rb
index b64c7b9312435..c0e0c33965899 100644
--- a/Library/Homebrew/development_tools.rb
+++ b/Library/Homebrew/development_tools.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 # @private
diff --git a/Library/Homebrew/diagnostic.rb b/Library/Homebrew/diagnostic.rb
index 2b9f166981967..4e48e08874989 100644
--- a/Library/Homebrew/diagnostic.rb
+++ b/Library/Homebrew/diagnostic.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "keg"
diff --git a/Library/Homebrew/download_strategy.rb b/Library/Homebrew/download_strategy.rb
index 064c422245c4a..35950630b2517 100644
--- a/Library/Homebrew/download_strategy.rb
+++ b/Library/Homebrew/download_strategy.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "json"
diff --git a/Library/Homebrew/env_config.rb b/Library/Homebrew/env_config.rb
index 747906d200fb6..278cd0f3e9078 100644
--- a/Library/Homebrew/env_config.rb
+++ b/Library/Homebrew/env_config.rb
@@ -1,3 +1,4 @@
+# typed: true
 # frozen_string_literal: true
 
 module Homebrew
diff --git a/Library/Homebrew/exceptions.rb b/Library/Homebrew/exceptions.rb
index 35913baf0aabc..56c3b158756b5 100644
--- a/Library/Homebrew/exceptions.rb
+++ b/Library/Homebrew/exceptions.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "shellwords"
diff --git a/Library/Homebrew/extend/ENV.rb b/Library/Homebrew/extend/ENV.rb
index 9d0835167d501..17a6fd1227de9 100644
--- a/Library/Homebrew/extend/ENV.rb
+++ b/Library/Homebrew/extend/ENV.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "hardware"
diff --git a/Library/Homebrew/extend/ENV/shared.rb b/Library/Homebrew/extend/ENV/shared.rb
index e2367a0c11b63..6ce7864e6ac31 100644
--- a/Library/Homebrew/extend/ENV/shared.rb
+++ b/Library/Homebrew/extend/ENV/shared.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "compilers"
diff --git a/Library/Homebrew/extend/ENV/std.rb b/Library/Homebrew/extend/ENV/std.rb
index 8afbc139742ff..30dfaeef20131 100644
--- a/Library/Homebrew/extend/ENV/std.rb
+++ b/Library/Homebrew/extend/ENV/std.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "hardware"
diff --git a/Library/Homebrew/extend/ENV/super.rb b/Library/Homebrew/extend/ENV/super.rb
index 4bbe7e054be10..b30a714bf63e2 100644
--- a/Library/Homebrew/extend/ENV/super.rb
+++ b/Library/Homebrew/extend/ENV/super.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "extend/ENV/shared"
diff --git a/Library/Homebrew/extend/cachable.rb b/Library/Homebrew/extend/cachable.rb
index 7545096485882..c90e9ca474e0b 100644
--- a/Library/Homebrew/extend/cachable.rb
+++ b/Library/Homebrew/extend/cachable.rb
@@ -1,3 +1,4 @@
+# typed: true
 # frozen_string_literal: true
 
 module Cachable
diff --git a/Library/Homebrew/extend/git_repository.rb b/Library/Homebrew/extend/git_repository.rb
index 495b538bf0f96..56a8ced8608b8 100644
--- a/Library/Homebrew/extend/git_repository.rb
+++ b/Library/Homebrew/extend/git_repository.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "utils/git"
diff --git a/Library/Homebrew/extend/hash_validator.rb b/Library/Homebrew/extend/hash_validator.rb
index ff6d7aec57c94..09cfbe68a3923 100644
--- a/Library/Homebrew/extend/hash_validator.rb
+++ b/Library/Homebrew/extend/hash_validator.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 module HashValidator
diff --git a/Library/Homebrew/extend/io.rb b/Library/Homebrew/extend/io.rb
index 21080e1fe78f3..f5d36dfc84f8b 100644
--- a/Library/Homebrew/extend/io.rb
+++ b/Library/Homebrew/extend/io.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 class IO
diff --git a/Library/Homebrew/extend/module.rb b/Library/Homebrew/extend/module.rb
index 5ba8ae7e0f873..173bfcc385532 100644
--- a/Library/Homebrew/extend/module.rb
+++ b/Library/Homebrew/extend/module.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 class Module
diff --git a/Library/Homebrew/extend/optparse.rb b/Library/Homebrew/extend/optparse.rb
index d59dcbeca287b..fb52d3705679e 100644
--- a/Library/Homebrew/extend/optparse.rb
+++ b/Library/Homebrew/extend/optparse.rb
@@ -1,3 +1,4 @@
+# typed: strict
 # frozen_string_literal: true
 
 require "optparse"
diff --git a/Library/Homebrew/extend/os/bottles.rb b/Library/Homebrew/extend/os/bottles.rb
index b9426c9d5ef4e..653fc2d190acb 100644
--- a/Library/Homebrew/extend/os/bottles.rb
+++ b/Library/Homebrew/extend/os/bottles.rb
@@ -1,3 +1,4 @@
+# typed: strict
 # frozen_string_literal: true
 
 require "extend/os/mac/utils/bottles" if OS.mac?
diff --git a/Library/Homebrew/extend/os/caveats.rb b/Library/Homebrew/extend/os/caveats.rb
index 6dddc2a8f98cc..75bd37fed598b 100644
--- a/Library/Homebrew/extend/os/caveats.rb
+++ b/Library/Homebrew/extend/os/caveats.rb
@@ -1,3 +1,4 @@
+# typed: strict
 # frozen_string_literal: true
 
 require "extend/os/mac/caveats" if OS.mac?
diff --git a/Library/Homebrew/extend/os/cleaner.rb b/Library/Homebrew/extend/os/cleaner.rb
index 0fc9822e77a7e..2e318d7d5b45b 100644
--- a/Library/Homebrew/extend/os/cleaner.rb
+++ b/Library/Homebrew/extend/os/cleaner.rb
@@ -1,3 +1,4 @@
+# typed: strict
 # frozen_string_literal: true
 
 if OS.mac?
diff --git a/Library/Homebrew/extend/os/dependency_collector.rb b/Library/Homebrew/extend/os/dependency_collector.rb
index b73abbdcf22db..58a3f23994dc4 100644
--- a/Library/Homebrew/extend/os/dependency_collector.rb
+++ b/Library/Homebrew/extend/os/dependency_collector.rb
@@ -1,3 +1,4 @@
+# typed: strict
 # frozen_string_literal: true
 
 if OS.mac?
diff --git a/Library/Homebrew/extend/os/development_tools.rb b/Library/Homebrew/extend/os/development_tools.rb
index 61385fc5c97d5..58e4f580bee9d 100644
--- a/Library/Homebrew/extend/os/development_tools.rb
+++ b/Library/Homebrew/extend/os/development_tools.rb
@@ -1,3 +1,4 @@
+# typed: strict
 # frozen_string_literal: true
 
 if OS.mac?
diff --git a/Library/Homebrew/extend/os/diagnostic.rb b/Library/Homebrew/extend/os/diagnostic.rb
index d94fb033bb553..066e48505e573 100644
--- a/Library/Homebrew/extend/os/diagnostic.rb
+++ b/Library/Homebrew/extend/os/diagnostic.rb
@@ -1,3 +1,4 @@
+# typed: strict
 # frozen_string_literal: true
 
 if OS.mac?
diff --git a/Library/Homebrew/extend/os/extend/ENV/shared.rb b/Library/Homebrew/extend/os/extend/ENV/shared.rb
index ee2c60f12e23a..1109fad7a1dfd 100644
--- a/Library/Homebrew/extend/os/extend/ENV/shared.rb
+++ b/Library/Homebrew/extend/os/extend/ENV/shared.rb
@@ -1,3 +1,4 @@
+# typed: strict
 # frozen_string_literal: true
 
 if OS.mac?
diff --git a/Library/Homebrew/extend/os/extend/ENV/std.rb b/Library/Homebrew/extend/os/extend/ENV/std.rb
index 4fa49e135b1e5..8e2b4e3e5f1be 100644
--- a/Library/Homebrew/extend/os/extend/ENV/std.rb
+++ b/Library/Homebrew/extend/os/extend/ENV/std.rb
@@ -1,3 +1,4 @@
+# typed: strict
 # frozen_string_literal: true
 
 if OS.mac?
diff --git a/Library/Homebrew/extend/os/extend/ENV/super.rb b/Library/Homebrew/extend/os/extend/ENV/super.rb
index e7d197638e4e8..e5349464edcb5 100644
--- a/Library/Homebrew/extend/os/extend/ENV/super.rb
+++ b/Library/Homebrew/extend/os/extend/ENV/super.rb
@@ -1,3 +1,4 @@
+# typed: strict
 # frozen_string_literal: true
 
 if OS.mac?
diff --git a/Library/Homebrew/extend/os/formula.rb b/Library/Homebrew/extend/os/formula.rb
index fe06aea8c563d..5a520cf8a33fd 100644
--- a/Library/Homebrew/extend/os/formula.rb
+++ b/Library/Homebrew/extend/os/formula.rb
@@ -1,3 +1,4 @@
+# typed: strict
 # frozen_string_literal: true
 
 if OS.mac?
diff --git a/Library/Homebrew/extend/os/formula_cellar_checks.rb b/Library/Homebrew/extend/os/formula_cellar_checks.rb
index 85bf7f77b6ff0..35cac0c902b00 100644
--- a/Library/Homebrew/extend/os/formula_cellar_checks.rb
+++ b/Library/Homebrew/extend/os/formula_cellar_checks.rb
@@ -1,3 +1,4 @@
+# typed: strict
 # frozen_string_literal: true
 
 if OS.mac?
diff --git a/Library/Homebrew/extend/os/formula_support.rb b/Library/Homebrew/extend/os/formula_support.rb
index b092c72bc42a7..ebefc4b5f4c6f 100644
--- a/Library/Homebrew/extend/os/formula_support.rb
+++ b/Library/Homebrew/extend/os/formula_support.rb
@@ -1,3 +1,4 @@
+# typed: strict
 # frozen_string_literal: true
 
 require "extend/os/mac/formula_support" if OS.mac?
diff --git a/Library/Homebrew/extend/os/hardware.rb b/Library/Homebrew/extend/os/hardware.rb
index f23d41e4a1d19..07a3382eba295 100644
--- a/Library/Homebrew/extend/os/hardware.rb
+++ b/Library/Homebrew/extend/os/hardware.rb
@@ -1,3 +1,4 @@
+# typed: strict
 # frozen_string_literal: true
 
 if OS.mac?
diff --git a/Library/Homebrew/extend/os/install.rb b/Library/Homebrew/extend/os/install.rb
index 8e93626dbeac8..0bb64629dbc12 100644
--- a/Library/Homebrew/extend/os/install.rb
+++ b/Library/Homebrew/extend/os/install.rb
@@ -1,3 +1,4 @@
+# typed: strict
 # frozen_string_literal: true
 
 require "extend/os/linux/install" if OS.linux?
diff --git a/Library/Homebrew/extend/os/keg.rb b/Library/Homebrew/extend/os/keg.rb
index 7b321b1b97071..5e3cdd073ac68 100644
--- a/Library/Homebrew/extend/os/keg.rb
+++ b/Library/Homebrew/extend/os/keg.rb
@@ -1,3 +1,4 @@
+# typed: strict
 # frozen_string_literal: true
 
 require "extend/os/mac/keg" if OS.mac?
diff --git a/Library/Homebrew/extend/os/keg_relocate.rb b/Library/Homebrew/extend/os/keg_relocate.rb
index 2107c83884b4f..6330de53832f8 100644
--- a/Library/Homebrew/extend/os/keg_relocate.rb
+++ b/Library/Homebrew/extend/os/keg_relocate.rb
@@ -1,3 +1,4 @@
+# typed: strict
 # frozen_string_literal: true
 
 if OS.mac?
diff --git a/Library/Homebrew/extend/os/language/java.rb b/Library/Homebrew/extend/os/language/java.rb
index 03e20040e8acc..3c1c0372b3ec3 100644
--- a/Library/Homebrew/extend/os/language/java.rb
+++ b/Library/Homebrew/extend/os/language/java.rb
@@ -1,3 +1,4 @@
+# typed: strict
 # frozen_string_literal: true
 
 require "extend/os/mac/language/java" if OS.mac?
diff --git a/Library/Homebrew/extend/os/linkage_checker.rb b/Library/Homebrew/extend/os/linkage_checker.rb
index 4fe4204f6a34a..3e8904e5eb0ef 100644
--- a/Library/Homebrew/extend/os/linkage_checker.rb
+++ b/Library/Homebrew/extend/os/linkage_checker.rb
@@ -1,3 +1,4 @@
+# typed: strict
 # frozen_string_literal: true
 
 require "extend/os/linux/linkage_checker" if OS.linux?
diff --git a/Library/Homebrew/extend/os/linux/cleaner.rb b/Library/Homebrew/extend/os/linux/cleaner.rb
index 21d646c0b3332..230e2a8cac8ee 100644
--- a/Library/Homebrew/extend/os/linux/cleaner.rb
+++ b/Library/Homebrew/extend/os/linux/cleaner.rb
@@ -1,3 +1,4 @@
+# typed: strict
 # frozen_string_literal: true
 
 class Cleaner
diff --git a/Library/Homebrew/extend/os/linux/dependency_collector.rb b/Library/Homebrew/extend/os/linux/dependency_collector.rb
index cfad51c4c4ca3..c019b67f09710 100644
--- a/Library/Homebrew/extend/os/linux/dependency_collector.rb
+++ b/Library/Homebrew/extend/os/linux/dependency_collector.rb
@@ -1,3 +1,4 @@
+# typed: true
 # frozen_string_literal: true
 
 class DependencyCollector
diff --git a/Library/Homebrew/extend/os/linux/development_tools.rb b/Library/Homebrew/extend/os/linux/development_tools.rb
index 590c0e0d774df..4e3bc56c9e10e 100644
--- a/Library/Homebrew/extend/os/linux/development_tools.rb
+++ b/Library/Homebrew/extend/os/linux/development_tools.rb
@@ -1,3 +1,4 @@
+# typed: true
 # frozen_string_literal: true
 
 class DevelopmentTools
diff --git a/Library/Homebrew/extend/os/linux/diagnostic.rb b/Library/Homebrew/extend/os/linux/diagnostic.rb
index 355e7e8cd4e36..30c48e55d7f40 100644
--- a/Library/Homebrew/extend/os/linux/diagnostic.rb
+++ b/Library/Homebrew/extend/os/linux/diagnostic.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "tempfile"
diff --git a/Library/Homebrew/extend/os/linux/extend/ENV/shared.rb b/Library/Homebrew/extend/os/linux/extend/ENV/shared.rb
index b16178cac6fb1..661725a6d2174 100644
--- a/Library/Homebrew/extend/os/linux/extend/ENV/shared.rb
+++ b/Library/Homebrew/extend/os/linux/extend/ENV/shared.rb
@@ -1,3 +1,4 @@
+# typed: true
 # frozen_string_literal: true
 
 module SharedEnvExtension
diff --git a/Library/Homebrew/extend/os/linux/extend/ENV/std.rb b/Library/Homebrew/extend/os/linux/extend/ENV/std.rb
index ddef1ee7ee2c3..fb287efc33b87 100644
--- a/Library/Homebrew/extend/os/linux/extend/ENV/std.rb
+++ b/Library/Homebrew/extend/os/linux/extend/ENV/std.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 module Stdenv
diff --git a/Library/Homebrew/extend/os/linux/extend/ENV/super.rb b/Library/Homebrew/extend/os/linux/extend/ENV/super.rb
index b5ba7e450ecee..a3fda016eff8c 100644
--- a/Library/Homebrew/extend/os/linux/extend/ENV/super.rb
+++ b/Library/Homebrew/extend/os/linux/extend/ENV/super.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 module Superenv
diff --git a/Library/Homebrew/extend/os/linux/extend/pathname.rb b/Library/Homebrew/extend/os/linux/extend/pathname.rb
index 7b4bd6371937f..c3bca7f316ef9 100644
--- a/Library/Homebrew/extend/os/linux/extend/pathname.rb
+++ b/Library/Homebrew/extend/os/linux/extend/pathname.rb
@@ -1,3 +1,4 @@
+# typed: strict
 # frozen_string_literal: true
 
 require "os/linux/elf"
diff --git a/Library/Homebrew/extend/os/linux/formula.rb b/Library/Homebrew/extend/os/linux/formula.rb
index e1562909aa255..6b96d548c0310 100644
--- a/Library/Homebrew/extend/os/linux/formula.rb
+++ b/Library/Homebrew/extend/os/linux/formula.rb
@@ -1,3 +1,4 @@
+# typed: true
 # frozen_string_literal: true
 
 class Formula
diff --git a/Library/Homebrew/extend/os/linux/formula_cellar_checks.rb b/Library/Homebrew/extend/os/linux/formula_cellar_checks.rb
index 00a14f98b8d20..fa2e49945211b 100644
--- a/Library/Homebrew/extend/os/linux/formula_cellar_checks.rb
+++ b/Library/Homebrew/extend/os/linux/formula_cellar_checks.rb
@@ -1,3 +1,4 @@
+# typed: strict
 # frozen_string_literal: true
 
 module FormulaCellarChecks
diff --git a/Library/Homebrew/extend/os/linux/hardware/cpu.rb b/Library/Homebrew/extend/os/linux/hardware/cpu.rb
index e51d656280480..badc19f507f7e 100644
--- a/Library/Homebrew/extend/os/linux/hardware/cpu.rb
+++ b/Library/Homebrew/extend/os/linux/hardware/cpu.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 module Hardware
diff --git a/Library/Homebrew/extend/os/linux/install.rb b/Library/Homebrew/extend/os/linux/install.rb
index 2184287f539ca..a905cbca7a9b4 100644
--- a/Library/Homebrew/extend/os/linux/install.rb
+++ b/Library/Homebrew/extend/os/linux/install.rb
@@ -1,3 +1,4 @@
+# typed: true
 # frozen_string_literal: true
 
 module Homebrew
diff --git a/Library/Homebrew/extend/os/linux/keg_relocate.rb b/Library/Homebrew/extend/os/linux/keg_relocate.rb
index 5d25692fd1bfc..b4307b71d935b 100644
--- a/Library/Homebrew/extend/os/linux/keg_relocate.rb
+++ b/Library/Homebrew/extend/os/linux/keg_relocate.rb
@@ -1,3 +1,4 @@
+# typed: true
 # frozen_string_literal: true
 
 class Keg
diff --git a/Library/Homebrew/extend/os/linux/linkage_checker.rb b/Library/Homebrew/extend/os/linux/linkage_checker.rb
index 30e073513c2a2..7720cc0d2ba42 100644
--- a/Library/Homebrew/extend/os/linux/linkage_checker.rb
+++ b/Library/Homebrew/extend/os/linux/linkage_checker.rb
@@ -1,3 +1,4 @@
+# typed: true
 # frozen_string_literal: true
 
 class LinkageChecker
diff --git a/Library/Homebrew/extend/os/linux/readall.rb b/Library/Homebrew/extend/os/linux/readall.rb
index e9278821e0514..62c23532505c0 100644
--- a/Library/Homebrew/extend/os/linux/readall.rb
+++ b/Library/Homebrew/extend/os/linux/readall.rb
@@ -1,3 +1,4 @@
+# typed: strict
 # frozen_string_literal: true
 
 module Readall
diff --git a/Library/Homebrew/extend/os/linux/requirements/java_requirement.rb b/Library/Homebrew/extend/os/linux/requirements/java_requirement.rb
index 1b1b6347c6c20..aa643d9ffec5c 100644
--- a/Library/Homebrew/extend/os/linux/requirements/java_requirement.rb
+++ b/Library/Homebrew/extend/os/linux/requirements/java_requirement.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "language/java"
diff --git a/Library/Homebrew/extend/os/linux/requirements/osxfuse_requirement.rb b/Library/Homebrew/extend/os/linux/requirements/osxfuse_requirement.rb
index 518a7ce645ee4..1a2ed81272679 100644
--- a/Library/Homebrew/extend/os/linux/requirements/osxfuse_requirement.rb
+++ b/Library/Homebrew/extend/os/linux/requirements/osxfuse_requirement.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "requirement"
diff --git a/Library/Homebrew/extend/os/linux/resource.rb b/Library/Homebrew/extend/os/linux/resource.rb
index a5af426c05c76..47f3801dd58da 100644
--- a/Library/Homebrew/extend/os/linux/resource.rb
+++ b/Library/Homebrew/extend/os/linux/resource.rb
@@ -1,3 +1,4 @@
+# typed: true
 # frozen_string_literal: true
 
 class Resource
diff --git a/Library/Homebrew/extend/os/linux/software_spec.rb b/Library/Homebrew/extend/os/linux/software_spec.rb
index 12ed0de45cda1..7d118fdc39817 100644
--- a/Library/Homebrew/extend/os/linux/software_spec.rb
+++ b/Library/Homebrew/extend/os/linux/software_spec.rb
@@ -1,3 +1,4 @@
+# typed: strict
 # frozen_string_literal: true
 
 class BottleSpecification
diff --git a/Library/Homebrew/extend/os/linux/system_config.rb b/Library/Homebrew/extend/os/linux/system_config.rb
index 0f76a99d2b08d..154c805a1ae5f 100644
--- a/Library/Homebrew/extend/os/linux/system_config.rb
+++ b/Library/Homebrew/extend/os/linux/system_config.rb
@@ -1,3 +1,4 @@
+# typed: true
 # frozen_string_literal: true
 
 require "formula"
diff --git a/Library/Homebrew/extend/os/linux/tap.rb b/Library/Homebrew/extend/os/linux/tap.rb
index 4a3ab97092a91..9f214a40baf0a 100644
--- a/Library/Homebrew/extend/os/linux/tap.rb
+++ b/Library/Homebrew/extend/os/linux/tap.rb
@@ -1,3 +1,4 @@
+# typed: true
 # frozen_string_literal: true
 
 class CoreTap < Tap
diff --git a/Library/Homebrew/extend/os/linux/utils/analytics.rb b/Library/Homebrew/extend/os/linux/utils/analytics.rb
index 00058e64d32f0..b4aa28f00db03 100644
--- a/Library/Homebrew/extend/os/linux/utils/analytics.rb
+++ b/Library/Homebrew/extend/os/linux/utils/analytics.rb
@@ -1,3 +1,4 @@
+# typed: strict
 # frozen_string_literal: true
 
 module Utils
diff --git a/Library/Homebrew/extend/os/mac/caveats.rb b/Library/Homebrew/extend/os/mac/caveats.rb
index dae8d90b07c9e..6de89386a57df 100644
--- a/Library/Homebrew/extend/os/mac/caveats.rb
+++ b/Library/Homebrew/extend/os/mac/caveats.rb
@@ -1,3 +1,4 @@
+# typed: true
 # frozen_string_literal: true
 
 class Caveats
diff --git a/Library/Homebrew/extend/os/mac/cleaner.rb b/Library/Homebrew/extend/os/mac/cleaner.rb
index 35b6e374cfc4e..9f2425ca284a9 100644
--- a/Library/Homebrew/extend/os/mac/cleaner.rb
+++ b/Library/Homebrew/extend/os/mac/cleaner.rb
@@ -1,3 +1,4 @@
+# typed: true
 # frozen_string_literal: true
 
 class Cleaner
diff --git a/Library/Homebrew/extend/os/mac/dependency_collector.rb b/Library/Homebrew/extend/os/mac/dependency_collector.rb
index 5db3b5767aa43..5efcd96d814ae 100644
--- a/Library/Homebrew/extend/os/mac/dependency_collector.rb
+++ b/Library/Homebrew/extend/os/mac/dependency_collector.rb
@@ -1,3 +1,4 @@
+# typed: true
 # frozen_string_literal: true
 
 class DependencyCollector
diff --git a/Library/Homebrew/extend/os/mac/development_tools.rb b/Library/Homebrew/extend/os/mac/development_tools.rb
index 787196472a530..15ea337b269d2 100644
--- a/Library/Homebrew/extend/os/mac/development_tools.rb
+++ b/Library/Homebrew/extend/os/mac/development_tools.rb
@@ -1,3 +1,4 @@
+# typed: true
 # frozen_string_literal: true
 
 require "os/mac/xcode"
diff --git a/Library/Homebrew/extend/os/mac/diagnostic.rb b/Library/Homebrew/extend/os/mac/diagnostic.rb
index de7222f907a3f..7b05358af4766 100644
--- a/Library/Homebrew/extend/os/mac/diagnostic.rb
+++ b/Library/Homebrew/extend/os/mac/diagnostic.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 module Homebrew
diff --git a/Library/Homebrew/extend/os/mac/extend/ENV/shared.rb b/Library/Homebrew/extend/os/mac/extend/ENV/shared.rb
index 476d30f7524aa..633768d8055c5 100644
--- a/Library/Homebrew/extend/os/mac/extend/ENV/shared.rb
+++ b/Library/Homebrew/extend/os/mac/extend/ENV/shared.rb
@@ -1,3 +1,4 @@
+# typed: true
 # frozen_string_literal: true
 
 module SharedEnvExtension
diff --git a/Library/Homebrew/extend/os/mac/extend/ENV/std.rb b/Library/Homebrew/extend/os/mac/extend/ENV/std.rb
index e6829a57aecc5..eceb486719a64 100644
--- a/Library/Homebrew/extend/os/mac/extend/ENV/std.rb
+++ b/Library/Homebrew/extend/os/mac/extend/ENV/std.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 module Stdenv
diff --git a/Library/Homebrew/extend/os/mac/extend/ENV/super.rb b/Library/Homebrew/extend/os/mac/extend/ENV/super.rb
index 6bc4edcc4bc4b..999c916b70c07 100644
--- a/Library/Homebrew/extend/os/mac/extend/ENV/super.rb
+++ b/Library/Homebrew/extend/os/mac/extend/ENV/super.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 module Superenv
diff --git a/Library/Homebrew/extend/os/mac/extend/pathname.rb b/Library/Homebrew/extend/os/mac/extend/pathname.rb
index 9289aa73b3d68..b208bf5b690f3 100644
--- a/Library/Homebrew/extend/os/mac/extend/pathname.rb
+++ b/Library/Homebrew/extend/os/mac/extend/pathname.rb
@@ -1,3 +1,4 @@
+# typed: strict
 # frozen_string_literal: true
 
 require "os/mac/mach"
diff --git a/Library/Homebrew/extend/os/mac/formula.rb b/Library/Homebrew/extend/os/mac/formula.rb
index dba823599dc40..b9fbaf8242bfc 100644
--- a/Library/Homebrew/extend/os/mac/formula.rb
+++ b/Library/Homebrew/extend/os/mac/formula.rb
@@ -1,3 +1,4 @@
+# typed: true
 # frozen_string_literal: true
 
 class Formula
diff --git a/Library/Homebrew/extend/os/mac/formula_cellar_checks.rb b/Library/Homebrew/extend/os/mac/formula_cellar_checks.rb
index 60c96494087a5..1bb8f462eb403 100644
--- a/Library/Homebrew/extend/os/mac/formula_cellar_checks.rb
+++ b/Library/Homebrew/extend/os/mac/formula_cellar_checks.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "cache_store"
diff --git a/Library/Homebrew/extend/os/mac/formula_support.rb b/Library/Homebrew/extend/os/mac/formula_support.rb
index 0635fce91bfed..a70d6f3bc82ab 100644
--- a/Library/Homebrew/extend/os/mac/formula_support.rb
+++ b/Library/Homebrew/extend/os/mac/formula_support.rb
@@ -1,3 +1,4 @@
+# typed: strict
 # frozen_string_literal: true
 
 class KegOnlyReason
diff --git a/Library/Homebrew/extend/os/mac/hardware.rb b/Library/Homebrew/extend/os/mac/hardware.rb
index c1edebfa6d931..ab53b4fd48d50 100644
--- a/Library/Homebrew/extend/os/mac/hardware.rb
+++ b/Library/Homebrew/extend/os/mac/hardware.rb
@@ -1,3 +1,4 @@
+# typed: strict
 # frozen_string_literal: true
 
 module Hardware
diff --git a/Library/Homebrew/extend/os/mac/hardware/cpu.rb b/Library/Homebrew/extend/os/mac/hardware/cpu.rb
index 308e94ea0a86c..0038423b36ab8 100644
--- a/Library/Homebrew/extend/os/mac/hardware/cpu.rb
+++ b/Library/Homebrew/extend/os/mac/hardware/cpu.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "macho"
diff --git a/Library/Homebrew/extend/os/mac/keg.rb b/Library/Homebrew/extend/os/mac/keg.rb
index 5fb0fbe0e6167..504b5c134f31a 100644
--- a/Library/Homebrew/extend/os/mac/keg.rb
+++ b/Library/Homebrew/extend/os/mac/keg.rb
@@ -1,3 +1,4 @@
+# typed: true
 # frozen_string_literal: true
 
 class Keg
diff --git a/Library/Homebrew/extend/os/mac/keg_relocate.rb b/Library/Homebrew/extend/os/mac/keg_relocate.rb
index d9a88c65842d6..b55deed223bf0 100644
--- a/Library/Homebrew/extend/os/mac/keg_relocate.rb
+++ b/Library/Homebrew/extend/os/mac/keg_relocate.rb
@@ -1,3 +1,4 @@
+# typed: true
 # frozen_string_literal: true
 
 class Keg
diff --git a/Library/Homebrew/extend/os/mac/language/java.rb b/Library/Homebrew/extend/os/mac/language/java.rb
index a92b386ecea15..0096bb9c91f45 100644
--- a/Library/Homebrew/extend/os/mac/language/java.rb
+++ b/Library/Homebrew/extend/os/mac/language/java.rb
@@ -1,3 +1,4 @@
+# typed: true
 # frozen_string_literal: true
 
 module Language
diff --git a/Library/Homebrew/extend/os/mac/missing_formula.rb b/Library/Homebrew/extend/os/mac/missing_formula.rb
index cceda91550fcc..cd9ce82328600 100644
--- a/Library/Homebrew/extend/os/mac/missing_formula.rb
+++ b/Library/Homebrew/extend/os/mac/missing_formula.rb
@@ -1,3 +1,4 @@
+# typed: strict
 # frozen_string_literal: true
 
 require "cask/cmd/abstract_command"
diff --git a/Library/Homebrew/extend/os/mac/requirements/java_requirement.rb b/Library/Homebrew/extend/os/mac/requirements/java_requirement.rb
index f8130f75890b8..4390f50675e91 100644
--- a/Library/Homebrew/extend/os/mac/requirements/java_requirement.rb
+++ b/Library/Homebrew/extend/os/mac/requirements/java_requirement.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 class JavaRequirement < Requirement
diff --git a/Library/Homebrew/extend/os/mac/requirements/osxfuse_requirement.rb b/Library/Homebrew/extend/os/mac/requirements/osxfuse_requirement.rb
index bcdfabdf78fe1..bdf2d9e93329a 100644
--- a/Library/Homebrew/extend/os/mac/requirements/osxfuse_requirement.rb
+++ b/Library/Homebrew/extend/os/mac/requirements/osxfuse_requirement.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "requirement"
diff --git a/Library/Homebrew/extend/os/mac/requirements/x11_requirement.rb b/Library/Homebrew/extend/os/mac/requirements/x11_requirement.rb
index 5c0f5cb9c593a..647c485b732b6 100644
--- a/Library/Homebrew/extend/os/mac/requirements/x11_requirement.rb
+++ b/Library/Homebrew/extend/os/mac/requirements/x11_requirement.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "requirement"
diff --git a/Library/Homebrew/extend/os/mac/resource.rb b/Library/Homebrew/extend/os/mac/resource.rb
index 2c53218564556..2947a85a3ab0a 100644
--- a/Library/Homebrew/extend/os/mac/resource.rb
+++ b/Library/Homebrew/extend/os/mac/resource.rb
@@ -1,3 +1,4 @@
+# typed: true
 # frozen_string_literal: true
 
 class Resource
diff --git a/Library/Homebrew/extend/os/mac/search.rb b/Library/Homebrew/extend/os/mac/search.rb
index 82cf08b5c155f..f25e05c43db31 100644
--- a/Library/Homebrew/extend/os/mac/search.rb
+++ b/Library/Homebrew/extend/os/mac/search.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "cask/cask"
diff --git a/Library/Homebrew/extend/os/mac/software_spec.rb b/Library/Homebrew/extend/os/mac/software_spec.rb
index e3c1de519f4fd..221c0c4ca6ccf 100644
--- a/Library/Homebrew/extend/os/mac/software_spec.rb
+++ b/Library/Homebrew/extend/os/mac/software_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 class SoftwareSpec
diff --git a/Library/Homebrew/extend/os/mac/system_config.rb b/Library/Homebrew/extend/os/mac/system_config.rb
index da6698fc53678..3ea619e2dbb3e 100644
--- a/Library/Homebrew/extend/os/mac/system_config.rb
+++ b/Library/Homebrew/extend/os/mac/system_config.rb
@@ -1,3 +1,4 @@
+# typed: true
 # frozen_string_literal: true
 
 module SystemConfig
diff --git a/Library/Homebrew/extend/os/mac/unpack_strategy/zip.rb b/Library/Homebrew/extend/os/mac/unpack_strategy/zip.rb
index fa619816d9e02..d90cdb21f5405 100644
--- a/Library/Homebrew/extend/os/mac/unpack_strategy/zip.rb
+++ b/Library/Homebrew/extend/os/mac/unpack_strategy/zip.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 module UnpackStrategy
diff --git a/Library/Homebrew/extend/os/mac/utils/analytics.rb b/Library/Homebrew/extend/os/mac/utils/analytics.rb
index 3e624df8ae963..ceba5b264982e 100644
--- a/Library/Homebrew/extend/os/mac/utils/analytics.rb
+++ b/Library/Homebrew/extend/os/mac/utils/analytics.rb
@@ -1,3 +1,4 @@
+# typed: strict
 # frozen_string_literal: true
 
 module Utils
diff --git a/Library/Homebrew/extend/os/mac/utils/bottles.rb b/Library/Homebrew/extend/os/mac/utils/bottles.rb
index 1b9303918f6ff..3986d0b940d32 100644
--- a/Library/Homebrew/extend/os/mac/utils/bottles.rb
+++ b/Library/Homebrew/extend/os/mac/utils/bottles.rb
@@ -1,3 +1,4 @@
+# typed: true
 # frozen_string_literal: true
 
 module Utils
diff --git a/Library/Homebrew/extend/os/missing_formula.rb b/Library/Homebrew/extend/os/missing_formula.rb
index b77e6427419f9..4eb794a1bb15d 100644
--- a/Library/Homebrew/extend/os/missing_formula.rb
+++ b/Library/Homebrew/extend/os/missing_formula.rb
@@ -1,3 +1,4 @@
+# typed: strict
 # frozen_string_literal: true
 
 require "extend/os/mac/missing_formula" if OS.mac?
diff --git a/Library/Homebrew/extend/os/pathname.rb b/Library/Homebrew/extend/os/pathname.rb
index 58e109e3f0d7b..131f49e6a83e1 100644
--- a/Library/Homebrew/extend/os/pathname.rb
+++ b/Library/Homebrew/extend/os/pathname.rb
@@ -1,3 +1,4 @@
+# typed: strict
 # frozen_string_literal: true
 
 if OS.mac?
diff --git a/Library/Homebrew/extend/os/readall.rb b/Library/Homebrew/extend/os/readall.rb
index 6ddbc3e6d74db..af407f1c44951 100644
--- a/Library/Homebrew/extend/os/readall.rb
+++ b/Library/Homebrew/extend/os/readall.rb
@@ -1,3 +1,4 @@
+# typed: strict
 # frozen_string_literal: true
 
 require "extend/os/linux/readall" if OS.linux?
diff --git a/Library/Homebrew/extend/os/requirements/java_requirement.rb b/Library/Homebrew/extend/os/requirements/java_requirement.rb
index 85c36f1aec18c..cd6faa271bc66 100644
--- a/Library/Homebrew/extend/os/requirements/java_requirement.rb
+++ b/Library/Homebrew/extend/os/requirements/java_requirement.rb
@@ -1,3 +1,4 @@
+# typed: strict
 # frozen_string_literal: true
 
 if OS.mac?
diff --git a/Library/Homebrew/extend/os/requirements/osxfuse_requirement.rb b/Library/Homebrew/extend/os/requirements/osxfuse_requirement.rb
index eab9176f3df8e..318299549f20c 100644
--- a/Library/Homebrew/extend/os/requirements/osxfuse_requirement.rb
+++ b/Library/Homebrew/extend/os/requirements/osxfuse_requirement.rb
@@ -1,3 +1,4 @@
+# typed: strict
 # frozen_string_literal: true
 
 if OS.mac?
diff --git a/Library/Homebrew/extend/os/requirements/x11_requirement.rb b/Library/Homebrew/extend/os/requirements/x11_requirement.rb
index 5389f38a19f33..df7ae3481c96f 100644
--- a/Library/Homebrew/extend/os/requirements/x11_requirement.rb
+++ b/Library/Homebrew/extend/os/requirements/x11_requirement.rb
@@ -1,3 +1,4 @@
+# typed: strict
 # frozen_string_literal: true
 
 require "extend/os/mac/requirements/x11_requirement" if OS.mac?
diff --git a/Library/Homebrew/extend/os/resource.rb b/Library/Homebrew/extend/os/resource.rb
index 9ad337890ccf6..aa6d675154afa 100644
--- a/Library/Homebrew/extend/os/resource.rb
+++ b/Library/Homebrew/extend/os/resource.rb
@@ -1,3 +1,4 @@
+# typed: strict
 # frozen_string_literal: true
 
 if OS.mac?
diff --git a/Library/Homebrew/extend/os/search.rb b/Library/Homebrew/extend/os/search.rb
index c6909a0fa03d4..96e7ff28ecb15 100644
--- a/Library/Homebrew/extend/os/search.rb
+++ b/Library/Homebrew/extend/os/search.rb
@@ -1,3 +1,4 @@
+# typed: strict
 # frozen_string_literal: true
 
 require "extend/os/mac/search" if OS.mac?
diff --git a/Library/Homebrew/extend/os/software_spec.rb b/Library/Homebrew/extend/os/software_spec.rb
index b4aea114426e8..15da2d0e5a8bb 100644
--- a/Library/Homebrew/extend/os/software_spec.rb
+++ b/Library/Homebrew/extend/os/software_spec.rb
@@ -1,3 +1,4 @@
+# typed: strict
 # frozen_string_literal: true
 
 if OS.linux?
diff --git a/Library/Homebrew/extend/os/system_config.rb b/Library/Homebrew/extend/os/system_config.rb
index 9c06e9a02c5f3..71298e98e7901 100644
--- a/Library/Homebrew/extend/os/system_config.rb
+++ b/Library/Homebrew/extend/os/system_config.rb
@@ -1,3 +1,4 @@
+# typed: strict
 # frozen_string_literal: true
 
 if OS.mac?
diff --git a/Library/Homebrew/extend/os/tap.rb b/Library/Homebrew/extend/os/tap.rb
index 82e0a09f6621b..7ad0ad531e869 100644
--- a/Library/Homebrew/extend/os/tap.rb
+++ b/Library/Homebrew/extend/os/tap.rb
@@ -1,3 +1,4 @@
+# typed: strict
 # frozen_string_literal: true
 
 require "extend/os/linux/tap" if OS.linux?
diff --git a/Library/Homebrew/extend/os/utils/analytics.rb b/Library/Homebrew/extend/os/utils/analytics.rb
index 8598bbf462e6d..f0042d78c2868 100644
--- a/Library/Homebrew/extend/os/utils/analytics.rb
+++ b/Library/Homebrew/extend/os/utils/analytics.rb
@@ -1,3 +1,4 @@
+# typed: strict
 # frozen_string_literal: true
 
 require "extend/os/linux/utils/analytics" if OS.linux?
diff --git a/Library/Homebrew/extend/pathname.rb b/Library/Homebrew/extend/pathname.rb
index fb3ddd9659431..9d45d5f5ef49d 100644
--- a/Library/Homebrew/extend/pathname.rb
+++ b/Library/Homebrew/extend/pathname.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "resource"
diff --git a/Library/Homebrew/extend/predicable.rb b/Library/Homebrew/extend/predicable.rb
index dba7f17b5fb36..914244d5d3801 100644
--- a/Library/Homebrew/extend/predicable.rb
+++ b/Library/Homebrew/extend/predicable.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 module Predicable
diff --git a/Library/Homebrew/extend/string.rb b/Library/Homebrew/extend/string.rb
index 32d403e21d8f1..d68d67897089c 100644
--- a/Library/Homebrew/extend/string.rb
+++ b/Library/Homebrew/extend/string.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "active_support/core_ext/object/blank"
diff --git a/Library/Homebrew/fetch.rb b/Library/Homebrew/fetch.rb
index 717537cbc15fc..6297b5d6283d8 100644
--- a/Library/Homebrew/fetch.rb
+++ b/Library/Homebrew/fetch.rb
@@ -1,3 +1,4 @@
+# typed: true
 # frozen_string_literal: true
 
 module Homebrew
diff --git a/Library/Homebrew/formula.rb b/Library/Homebrew/formula.rb
index 13531047669ae..53ec1ee33b5df 100644
--- a/Library/Homebrew/formula.rb
+++ b/Library/Homebrew/formula.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "cache_store"
diff --git a/Library/Homebrew/formula_assertions.rb b/Library/Homebrew/formula_assertions.rb
index fdcfa86573999..05948f3a2beb7 100644
--- a/Library/Homebrew/formula_assertions.rb
+++ b/Library/Homebrew/formula_assertions.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 module Homebrew
diff --git a/Library/Homebrew/formula_cellar_checks.rb b/Library/Homebrew/formula_cellar_checks.rb
index 7c71590d283a9..7d7a31b179d27 100644
--- a/Library/Homebrew/formula_cellar_checks.rb
+++ b/Library/Homebrew/formula_cellar_checks.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "utils/shell"
diff --git a/Library/Homebrew/formula_creator.rb b/Library/Homebrew/formula_creator.rb
index 75ddba1483946..f30b7082ff52b 100644
--- a/Library/Homebrew/formula_creator.rb
+++ b/Library/Homebrew/formula_creator.rb
@@ -1,3 +1,4 @@
+# typed: true
 # frozen_string_literal: true
 
 require "digest"
diff --git a/Library/Homebrew/formula_free_port.rb b/Library/Homebrew/formula_free_port.rb
index 2067ca287f4a1..91e94da6094f6 100644
--- a/Library/Homebrew/formula_free_port.rb
+++ b/Library/Homebrew/formula_free_port.rb
@@ -1,3 +1,4 @@
+# typed: true
 # frozen_string_literal: true
 
 require "socket"
diff --git a/Library/Homebrew/formula_info.rb b/Library/Homebrew/formula_info.rb
index 9165643948976..367f7e6947070 100644
--- a/Library/Homebrew/formula_info.rb
+++ b/Library/Homebrew/formula_info.rb
@@ -1,3 +1,4 @@
+# typed: true
 # frozen_string_literal: true
 
 # Formula information drawn from an external `brew info --json` call.
diff --git a/Library/Homebrew/formula_installer.rb b/Library/Homebrew/formula_installer.rb
index b6c38e128b95c..1ff0ab1712b21 100644
--- a/Library/Homebrew/formula_installer.rb
+++ b/Library/Homebrew/formula_installer.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "cxxstdlib"
diff --git a/Library/Homebrew/formula_pin.rb b/Library/Homebrew/formula_pin.rb
index 613a51fc81a32..0a0d097c25bd0 100644
--- a/Library/Homebrew/formula_pin.rb
+++ b/Library/Homebrew/formula_pin.rb
@@ -1,3 +1,4 @@
+# typed: true
 # frozen_string_literal: true
 
 require "keg"
diff --git a/Library/Homebrew/formula_support.rb b/Library/Homebrew/formula_support.rb
index 521621711e613..67569587f51bb 100644
--- a/Library/Homebrew/formula_support.rb
+++ b/Library/Homebrew/formula_support.rb
@@ -1,3 +1,4 @@
+# typed: true
 # frozen_string_literal: true
 
 # Used to track formulae that cannot be installed at the same time.
diff --git a/Library/Homebrew/formula_versions.rb b/Library/Homebrew/formula_versions.rb
index ecd67d52704d8..c33726de0efca 100644
--- a/Library/Homebrew/formula_versions.rb
+++ b/Library/Homebrew/formula_versions.rb
@@ -1,3 +1,4 @@
+# typed: true
 # frozen_string_literal: true
 
 require "formula"
diff --git a/Library/Homebrew/formulary.rb b/Library/Homebrew/formulary.rb
index 4bc1e446ca70b..2421b1d1bb35b 100644
--- a/Library/Homebrew/formulary.rb
+++ b/Library/Homebrew/formulary.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "digest/md5"
diff --git a/Library/Homebrew/global.rb b/Library/Homebrew/global.rb
index ac124aa09cf7b..667f765433c2d 100644
--- a/Library/Homebrew/global.rb
+++ b/Library/Homebrew/global.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "English"
diff --git a/Library/Homebrew/hardware.rb b/Library/Homebrew/hardware.rb
index ea63270b27dc0..05b5d08ad9656 100644
--- a/Library/Homebrew/hardware.rb
+++ b/Library/Homebrew/hardware.rb
@@ -1,3 +1,4 @@
+# typed: true
 # frozen_string_literal: true
 
 require "utils/popen"
diff --git a/Library/Homebrew/help.rb b/Library/Homebrew/help.rb
index 8b577b8c82d6e..66e38c3576951 100644
--- a/Library/Homebrew/help.rb
+++ b/Library/Homebrew/help.rb
@@ -1,3 +1,4 @@
+# typed: true
 # frozen_string_literal: true
 
 require "cli/parser"
diff --git a/Library/Homebrew/install.rb b/Library/Homebrew/install.rb
index 17d406957b1c1..f00d3fc402297 100644
--- a/Library/Homebrew/install.rb
+++ b/Library/Homebrew/install.rb
@@ -1,3 +1,4 @@
+# typed: true
 # frozen_string_literal: true
 
 require "diagnostic"
diff --git a/Library/Homebrew/install_renamed.rb b/Library/Homebrew/install_renamed.rb
index ac891273a0904..6018da8102a0c 100644
--- a/Library/Homebrew/install_renamed.rb
+++ b/Library/Homebrew/install_renamed.rb
@@ -1,3 +1,4 @@
+# typed: true
 # frozen_string_literal: true
 
 # Helper module for installing default files.
diff --git a/Library/Homebrew/keg.rb b/Library/Homebrew/keg.rb
index 8c8140190c457..902ed12f38572 100644
--- a/Library/Homebrew/keg.rb
+++ b/Library/Homebrew/keg.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "keg_relocate"
diff --git a/Library/Homebrew/keg_relocate.rb b/Library/Homebrew/keg_relocate.rb
index 1bdf422dca546..b26b5a77092ca 100644
--- a/Library/Homebrew/keg_relocate.rb
+++ b/Library/Homebrew/keg_relocate.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 class Keg
diff --git a/Library/Homebrew/language/go.rb b/Library/Homebrew/language/go.rb
index 2b4a0399d81b0..22f851472b7cf 100644
--- a/Library/Homebrew/language/go.rb
+++ b/Library/Homebrew/language/go.rb
@@ -1,3 +1,4 @@
+# typed: true
 # frozen_string_literal: true
 
 require "resource"
diff --git a/Library/Homebrew/language/haskell.rb b/Library/Homebrew/language/haskell.rb
index 964fa4f7736f5..ad959e7e7b34c 100644
--- a/Library/Homebrew/language/haskell.rb
+++ b/Library/Homebrew/language/haskell.rb
@@ -1,3 +1,4 @@
+# typed: strict
 # frozen_string_literal: true
 
 require "compat/language/haskell"
diff --git a/Library/Homebrew/language/java.rb b/Library/Homebrew/language/java.rb
index fb9b7b0119cb9..a67d52b10e1f1 100644
--- a/Library/Homebrew/language/java.rb
+++ b/Library/Homebrew/language/java.rb
@@ -1,3 +1,4 @@
+# typed: true
 # frozen_string_literal: true
 
 module Language
diff --git a/Library/Homebrew/language/node.rb b/Library/Homebrew/language/node.rb
index 4f53e485f85cb..fe16e5a14128e 100644
--- a/Library/Homebrew/language/node.rb
+++ b/Library/Homebrew/language/node.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 module Language
diff --git a/Library/Homebrew/language/perl.rb b/Library/Homebrew/language/perl.rb
index c81ef65c51208..3714b71407637 100644
--- a/Library/Homebrew/language/perl.rb
+++ b/Library/Homebrew/language/perl.rb
@@ -1,3 +1,4 @@
+# typed: true
 # frozen_string_literal: true
 
 module Language
diff --git a/Library/Homebrew/language/python.rb b/Library/Homebrew/language/python.rb
index d24e7c4ba7367..8a82706e19d88 100644
--- a/Library/Homebrew/language/python.rb
+++ b/Library/Homebrew/language/python.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 module Language
diff --git a/Library/Homebrew/lazy_object.rb b/Library/Homebrew/lazy_object.rb
index 8ea44995ebce2..ace7e5d9c437e 100644
--- a/Library/Homebrew/lazy_object.rb
+++ b/Library/Homebrew/lazy_object.rb
@@ -1,3 +1,4 @@
+# typed: true
 # frozen_string_literal: true
 
 # An object which lazily evaluates its inner block only once a method is called on it.
diff --git a/Library/Homebrew/linkage_cache_store.rb b/Library/Homebrew/linkage_cache_store.rb
index 6ab77998ed28c..90f2bccdb1b0f 100644
--- a/Library/Homebrew/linkage_cache_store.rb
+++ b/Library/Homebrew/linkage_cache_store.rb
@@ -1,3 +1,4 @@
+# typed: true
 # frozen_string_literal: true
 
 require "set"
diff --git a/Library/Homebrew/linkage_checker.rb b/Library/Homebrew/linkage_checker.rb
index 9948086f22a65..74bcc6b2abcbd 100644
--- a/Library/Homebrew/linkage_checker.rb
+++ b/Library/Homebrew/linkage_checker.rb
@@ -1,3 +1,4 @@
+# typed: true
 # frozen_string_literal: true
 
 require "keg"
diff --git a/Library/Homebrew/livecheck.rb b/Library/Homebrew/livecheck.rb
index c72818dc38dd1..df31c5f4550e3 100644
--- a/Library/Homebrew/livecheck.rb
+++ b/Library/Homebrew/livecheck.rb
@@ -1,3 +1,4 @@
+# typed: true
 # frozen_string_literal: true
 
 # The `Livecheck` class implements the DSL methods used in a formula's
diff --git a/Library/Homebrew/livecheck/livecheck.rb b/Library/Homebrew/livecheck/livecheck.rb
index d5410b25fda1f..466dd95e0951a 100644
--- a/Library/Homebrew/livecheck/livecheck.rb
+++ b/Library/Homebrew/livecheck/livecheck.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "livecheck/strategy"
diff --git a/Library/Homebrew/livecheck/strategy.rb b/Library/Homebrew/livecheck/strategy.rb
index aa6d196ffee70..4111365455fe0 100644
--- a/Library/Homebrew/livecheck/strategy.rb
+++ b/Library/Homebrew/livecheck/strategy.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 module Homebrew
diff --git a/Library/Homebrew/livecheck/strategy/apache.rb b/Library/Homebrew/livecheck/strategy/apache.rb
index 5e8cb9e122b36..52beb1686f2d2 100644
--- a/Library/Homebrew/livecheck/strategy/apache.rb
+++ b/Library/Homebrew/livecheck/strategy/apache.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 module Homebrew
diff --git a/Library/Homebrew/livecheck/strategy/bitbucket.rb b/Library/Homebrew/livecheck/strategy/bitbucket.rb
index a696d21252180..a1e29a544b690 100644
--- a/Library/Homebrew/livecheck/strategy/bitbucket.rb
+++ b/Library/Homebrew/livecheck/strategy/bitbucket.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 module Homebrew
diff --git a/Library/Homebrew/livecheck/strategy/git.rb b/Library/Homebrew/livecheck/strategy/git.rb
index f93127af9f0b8..5a1e5edb15efa 100644
--- a/Library/Homebrew/livecheck/strategy/git.rb
+++ b/Library/Homebrew/livecheck/strategy/git.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "open3"
diff --git a/Library/Homebrew/livecheck/strategy/gnome.rb b/Library/Homebrew/livecheck/strategy/gnome.rb
index 72a6c68ff2455..fa1e952300044 100644
--- a/Library/Homebrew/livecheck/strategy/gnome.rb
+++ b/Library/Homebrew/livecheck/strategy/gnome.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 module Homebrew
diff --git a/Library/Homebrew/livecheck/strategy/gnu.rb b/Library/Homebrew/livecheck/strategy/gnu.rb
index 396c7e25a6d06..72dbe477719ae 100644
--- a/Library/Homebrew/livecheck/strategy/gnu.rb
+++ b/Library/Homebrew/livecheck/strategy/gnu.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 module Homebrew
diff --git a/Library/Homebrew/livecheck/strategy/hackage.rb b/Library/Homebrew/livecheck/strategy/hackage.rb
index 4f0303fe68b73..2c2ecd69bc2d7 100644
--- a/Library/Homebrew/livecheck/strategy/hackage.rb
+++ b/Library/Homebrew/livecheck/strategy/hackage.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 module Homebrew
diff --git a/Library/Homebrew/livecheck/strategy/launchpad.rb b/Library/Homebrew/livecheck/strategy/launchpad.rb
index b9253521b5007..c38d393f28864 100644
--- a/Library/Homebrew/livecheck/strategy/launchpad.rb
+++ b/Library/Homebrew/livecheck/strategy/launchpad.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 module Homebrew
diff --git a/Library/Homebrew/livecheck/strategy/npm.rb b/Library/Homebrew/livecheck/strategy/npm.rb
index 3f2520d5745eb..3c661f155ceb1 100644
--- a/Library/Homebrew/livecheck/strategy/npm.rb
+++ b/Library/Homebrew/livecheck/strategy/npm.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 module Homebrew
diff --git a/Library/Homebrew/livecheck/strategy/page_match.rb b/Library/Homebrew/livecheck/strategy/page_match.rb
index 3e9ddc85f2c3f..73c80beacdd05 100644
--- a/Library/Homebrew/livecheck/strategy/page_match.rb
+++ b/Library/Homebrew/livecheck/strategy/page_match.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "open-uri"
diff --git a/Library/Homebrew/livecheck/strategy/pypi.rb b/Library/Homebrew/livecheck/strategy/pypi.rb
index 4c10516effe51..6fa15dbff6be7 100644
--- a/Library/Homebrew/livecheck/strategy/pypi.rb
+++ b/Library/Homebrew/livecheck/strategy/pypi.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 module Homebrew
diff --git a/Library/Homebrew/livecheck/strategy/sourceforge.rb b/Library/Homebrew/livecheck/strategy/sourceforge.rb
index 336d32ebfd239..88c40d5c24552 100644
--- a/Library/Homebrew/livecheck/strategy/sourceforge.rb
+++ b/Library/Homebrew/livecheck/strategy/sourceforge.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 module Homebrew
diff --git a/Library/Homebrew/livecheck/strategy/xorg.rb b/Library/Homebrew/livecheck/strategy/xorg.rb
index f9de6660df201..5517897b14b94 100644
--- a/Library/Homebrew/livecheck/strategy/xorg.rb
+++ b/Library/Homebrew/livecheck/strategy/xorg.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "open-uri"
diff --git a/Library/Homebrew/load_path.rb b/Library/Homebrew/load_path.rb
index ea9f8a2306a3d..258265213caff 100644
--- a/Library/Homebrew/load_path.rb
+++ b/Library/Homebrew/load_path.rb
@@ -1,3 +1,4 @@
+# typed: true
 # frozen_string_literal: true
 
 require "pathname"
diff --git a/Library/Homebrew/locale.rb b/Library/Homebrew/locale.rb
index c858aa03b5d22..278bb621dbca9 100644
--- a/Library/Homebrew/locale.rb
+++ b/Library/Homebrew/locale.rb
@@ -1,3 +1,4 @@
+# typed: true
 # frozen_string_literal: true
 
 # Representation of a system locale.
diff --git a/Library/Homebrew/lock_file.rb b/Library/Homebrew/lock_file.rb
index 88f017a1702a1..7bbabfa73313d 100644
--- a/Library/Homebrew/lock_file.rb
+++ b/Library/Homebrew/lock_file.rb
@@ -1,3 +1,4 @@
+# typed: true
 # frozen_string_literal: true
 
 require "fcntl"
diff --git a/Library/Homebrew/messages.rb b/Library/Homebrew/messages.rb
index 18187a8447299..bc8c64b50140d 100644
--- a/Library/Homebrew/messages.rb
+++ b/Library/Homebrew/messages.rb
@@ -1,3 +1,4 @@
+# typed: true
 # frozen_string_literal: true
 
 # A Messages object collects messages that may need to be displayed together
diff --git a/Library/Homebrew/metafiles.rb b/Library/Homebrew/metafiles.rb
index ea2b525ee431d..5a244e64507fe 100644
--- a/Library/Homebrew/metafiles.rb
+++ b/Library/Homebrew/metafiles.rb
@@ -1,3 +1,4 @@
+# typed: true
 # frozen_string_literal: true
 
 # Helper for checking if a file is considered a metadata file.
diff --git a/Library/Homebrew/migrator.rb b/Library/Homebrew/migrator.rb
index bdf05f93bb766..c60bf8261523e 100644
--- a/Library/Homebrew/migrator.rb
+++ b/Library/Homebrew/migrator.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "lock_file"
diff --git a/Library/Homebrew/missing_formula.rb b/Library/Homebrew/missing_formula.rb
index c69de457bbf72..69c76c0aef186 100644
--- a/Library/Homebrew/missing_formula.rb
+++ b/Library/Homebrew/missing_formula.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "formulary"
diff --git a/Library/Homebrew/mktemp.rb b/Library/Homebrew/mktemp.rb
index 716c3d269ccb5..749b8a215705e 100644
--- a/Library/Homebrew/mktemp.rb
+++ b/Library/Homebrew/mktemp.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 # Performs `Formula#mktemp`'s functionality, and tracks the results.
diff --git a/Library/Homebrew/official_taps.rb b/Library/Homebrew/official_taps.rb
index b19ed5a7d9a36..a518cb8db086a 100644
--- a/Library/Homebrew/official_taps.rb
+++ b/Library/Homebrew/official_taps.rb
@@ -1,3 +1,4 @@
+# typed: true
 # frozen_string_literal: true
 
 OFFICIAL_CASK_TAPS = %w[
diff --git a/Library/Homebrew/options.rb b/Library/Homebrew/options.rb
index b486d3dc27e2a..9e4a229ed1507 100644
--- a/Library/Homebrew/options.rb
+++ b/Library/Homebrew/options.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 # A formula option.
diff --git a/Library/Homebrew/os.rb b/Library/Homebrew/os.rb
index 4981f12b53e42..2c3199b81b1cf 100644
--- a/Library/Homebrew/os.rb
+++ b/Library/Homebrew/os.rb
@@ -1,3 +1,4 @@
+# typed: true
 # frozen_string_literal: true
 
 # Helper functions for querying operating system information.
diff --git a/Library/Homebrew/os/global.rb b/Library/Homebrew/os/global.rb
index 9d6250c235a20..bbf58536d7b72 100644
--- a/Library/Homebrew/os/global.rb
+++ b/Library/Homebrew/os/global.rb
@@ -1,3 +1,4 @@
+# typed: strict
 # frozen_string_literal: true
 
 require "os/linux/global" if OS.linux?
diff --git a/Library/Homebrew/os/linux.rb b/Library/Homebrew/os/linux.rb
index c8804764a2af5..17d2fee3461bc 100644
--- a/Library/Homebrew/os/linux.rb
+++ b/Library/Homebrew/os/linux.rb
@@ -1,3 +1,4 @@
+# typed: true
 # frozen_string_literal: true
 
 module OS
diff --git a/Library/Homebrew/os/linux/elf.rb b/Library/Homebrew/os/linux/elf.rb
index c4d8dae4cddd1..c38fed883d42f 100644
--- a/Library/Homebrew/os/linux/elf.rb
+++ b/Library/Homebrew/os/linux/elf.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 # {Pathname} extension for dealing with ELF files.
diff --git a/Library/Homebrew/os/linux/glibc.rb b/Library/Homebrew/os/linux/glibc.rb
index a42ee092d0d59..49df817c37bdf 100644
--- a/Library/Homebrew/os/linux/glibc.rb
+++ b/Library/Homebrew/os/linux/glibc.rb
@@ -1,3 +1,4 @@
+# typed: true
 # frozen_string_literal: true
 
 module OS
diff --git a/Library/Homebrew/os/linux/global.rb b/Library/Homebrew/os/linux/global.rb
index f367a86dbb75f..df09e17ca1fe8 100644
--- a/Library/Homebrew/os/linux/global.rb
+++ b/Library/Homebrew/os/linux/global.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 # enables experimental patchelf.rb write support.
diff --git a/Library/Homebrew/os/linux/kernel.rb b/Library/Homebrew/os/linux/kernel.rb
index 1c20ce5a14156..fd535699bc83a 100644
--- a/Library/Homebrew/os/linux/kernel.rb
+++ b/Library/Homebrew/os/linux/kernel.rb
@@ -1,3 +1,4 @@
+# typed: true
 # frozen_string_literal: true
 
 module OS
diff --git a/Library/Homebrew/os/mac.rb b/Library/Homebrew/os/mac.rb
index 8e9d0d33f31f0..2ed8d45282ad1 100644
--- a/Library/Homebrew/os/mac.rb
+++ b/Library/Homebrew/os/mac.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "os/mac/version"
diff --git a/Library/Homebrew/os/mac/architecture_list.rb b/Library/Homebrew/os/mac/architecture_list.rb
index 8ade3fe0c0807..f7cca8d6970d1 100644
--- a/Library/Homebrew/os/mac/architecture_list.rb
+++ b/Library/Homebrew/os/mac/architecture_list.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "hardware"
diff --git a/Library/Homebrew/os/mac/keg.rb b/Library/Homebrew/os/mac/keg.rb
index 0782226c009cd..b5805975c65df 100644
--- a/Library/Homebrew/os/mac/keg.rb
+++ b/Library/Homebrew/os/mac/keg.rb
@@ -1,3 +1,4 @@
+# typed: true
 # frozen_string_literal: true
 
 class Keg
diff --git a/Library/Homebrew/os/mac/mach.rb b/Library/Homebrew/os/mac/mach.rb
index aef8164268261..7a6a75c318539 100644
--- a/Library/Homebrew/os/mac/mach.rb
+++ b/Library/Homebrew/os/mac/mach.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "macho"
diff --git a/Library/Homebrew/os/mac/sdk.rb b/Library/Homebrew/os/mac/sdk.rb
index ff30e3eaa2b17..502e9adc393ad 100644
--- a/Library/Homebrew/os/mac/sdk.rb
+++ b/Library/Homebrew/os/mac/sdk.rb
@@ -1,3 +1,4 @@
+# typed: true
 # frozen_string_literal: true
 
 require "os/mac/version"
diff --git a/Library/Homebrew/os/mac/version.rb b/Library/Homebrew/os/mac/version.rb
index 3aadfb95d7094..c8a899cc450a0 100644
--- a/Library/Homebrew/os/mac/version.rb
+++ b/Library/Homebrew/os/mac/version.rb
@@ -1,3 +1,4 @@
+# typed: true
 # frozen_string_literal: true
 
 require "hardware"
diff --git a/Library/Homebrew/os/mac/xcode.rb b/Library/Homebrew/os/mac/xcode.rb
index 7d78b855d40ec..e81979622b503 100644
--- a/Library/Homebrew/os/mac/xcode.rb
+++ b/Library/Homebrew/os/mac/xcode.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 module OS
diff --git a/Library/Homebrew/os/mac/xquartz.rb b/Library/Homebrew/os/mac/xquartz.rb
index 98858392d103c..21bed29170214 100644
--- a/Library/Homebrew/os/mac/xquartz.rb
+++ b/Library/Homebrew/os/mac/xquartz.rb
@@ -1,3 +1,4 @@
+# typed: true
 # frozen_string_literal: true
 
 module OS
diff --git a/Library/Homebrew/patch.rb b/Library/Homebrew/patch.rb
index 0934b436fa5eb..61d00d6a0809d 100644
--- a/Library/Homebrew/patch.rb
+++ b/Library/Homebrew/patch.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "resource"
diff --git a/Library/Homebrew/pkg_version.rb b/Library/Homebrew/pkg_version.rb
index cd74821087426..c8aa68b26461c 100644
--- a/Library/Homebrew/pkg_version.rb
+++ b/Library/Homebrew/pkg_version.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "version"
diff --git a/Library/Homebrew/postinstall.rb b/Library/Homebrew/postinstall.rb
index 5f85cfbb89be5..575a27eeddb25 100644
--- a/Library/Homebrew/postinstall.rb
+++ b/Library/Homebrew/postinstall.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 old_trap = trap("INT") { exit! 130 }
diff --git a/Library/Homebrew/readall.rb b/Library/Homebrew/readall.rb
index d1e0a007bf5ac..5075767249b70 100644
--- a/Library/Homebrew/readall.rb
+++ b/Library/Homebrew/readall.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "formula"
diff --git a/Library/Homebrew/reinstall.rb b/Library/Homebrew/reinstall.rb
index 1f746aa6e0230..b763cd03b5951 100644
--- a/Library/Homebrew/reinstall.rb
+++ b/Library/Homebrew/reinstall.rb
@@ -1,3 +1,4 @@
+# typed: true
 # frozen_string_literal: true
 
 require "formula_installer"
diff --git a/Library/Homebrew/requirement.rb b/Library/Homebrew/requirement.rb
index d4bb330119746..a6d8545cb0ca4 100644
--- a/Library/Homebrew/requirement.rb
+++ b/Library/Homebrew/requirement.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "dependable"
diff --git a/Library/Homebrew/requirements.rb b/Library/Homebrew/requirements.rb
index 4358f1f2b6c71..6b7b8251f8446 100644
--- a/Library/Homebrew/requirements.rb
+++ b/Library/Homebrew/requirements.rb
@@ -1,3 +1,4 @@
+# typed: strict
 # frozen_string_literal: true
 
 require "requirement"
diff --git a/Library/Homebrew/requirements/arch_requirement.rb b/Library/Homebrew/requirements/arch_requirement.rb
index dc9d81320f6e9..d4499ee065310 100644
--- a/Library/Homebrew/requirements/arch_requirement.rb
+++ b/Library/Homebrew/requirements/arch_requirement.rb
@@ -1,3 +1,4 @@
+# typed: true
 # frozen_string_literal: true
 
 require "requirement"
diff --git a/Library/Homebrew/requirements/codesign_requirement.rb b/Library/Homebrew/requirements/codesign_requirement.rb
index dbec98dba9d12..54fb9352a2e02 100644
--- a/Library/Homebrew/requirements/codesign_requirement.rb
+++ b/Library/Homebrew/requirements/codesign_requirement.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 # A requirement on a code-signing identity.
diff --git a/Library/Homebrew/requirements/java_requirement.rb b/Library/Homebrew/requirements/java_requirement.rb
index d6ba1a9332936..a519a2cdbba62 100644
--- a/Library/Homebrew/requirements/java_requirement.rb
+++ b/Library/Homebrew/requirements/java_requirement.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "language/java"
diff --git a/Library/Homebrew/requirements/linux_requirement.rb b/Library/Homebrew/requirements/linux_requirement.rb
index 04b644a398f84..a744caeab6ed9 100644
--- a/Library/Homebrew/requirements/linux_requirement.rb
+++ b/Library/Homebrew/requirements/linux_requirement.rb
@@ -1,3 +1,4 @@
+# typed: true
 # frozen_string_literal: true
 
 # A requirement on Linux.
diff --git a/Library/Homebrew/requirements/macos_requirement.rb b/Library/Homebrew/requirements/macos_requirement.rb
index 6013a1a1b7f92..b9d4fbc5561a7 100644
--- a/Library/Homebrew/requirements/macos_requirement.rb
+++ b/Library/Homebrew/requirements/macos_requirement.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "requirement"
diff --git a/Library/Homebrew/requirements/osxfuse_requirement.rb b/Library/Homebrew/requirements/osxfuse_requirement.rb
index 8371568fa095e..9a4a0f527f492 100644
--- a/Library/Homebrew/requirements/osxfuse_requirement.rb
+++ b/Library/Homebrew/requirements/osxfuse_requirement.rb
@@ -1,3 +1,4 @@
+# typed: strict
 # frozen_string_literal: true
 
 require "requirement"
diff --git a/Library/Homebrew/requirements/tuntap_requirement.rb b/Library/Homebrew/requirements/tuntap_requirement.rb
index 6f9cec4cfd5fd..40075a947b11d 100644
--- a/Library/Homebrew/requirements/tuntap_requirement.rb
+++ b/Library/Homebrew/requirements/tuntap_requirement.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "requirement"
diff --git a/Library/Homebrew/requirements/x11_requirement.rb b/Library/Homebrew/requirements/x11_requirement.rb
index f34834c2ffce4..4fe5c98538cfe 100644
--- a/Library/Homebrew/requirements/x11_requirement.rb
+++ b/Library/Homebrew/requirements/x11_requirement.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "requirement"
diff --git a/Library/Homebrew/requirements/xcode_requirement.rb b/Library/Homebrew/requirements/xcode_requirement.rb
index 97e1dde8da138..533b3e851560b 100644
--- a/Library/Homebrew/requirements/xcode_requirement.rb
+++ b/Library/Homebrew/requirements/xcode_requirement.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "requirement"
diff --git a/Library/Homebrew/resource.rb b/Library/Homebrew/resource.rb
index ba6ddb6ebe153..29655d120a439 100644
--- a/Library/Homebrew/resource.rb
+++ b/Library/Homebrew/resource.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "download_strategy"
diff --git a/Library/Homebrew/rubocops.rb b/Library/Homebrew/rubocops.rb
index b2b748bb035f1..e5c5651439ff7 100644
--- a/Library/Homebrew/rubocops.rb
+++ b/Library/Homebrew/rubocops.rb
@@ -1,3 +1,4 @@
+# typed: strict
 # frozen_string_literal: true
 
 require_relative "load_path"
diff --git a/Library/Homebrew/rubocops/cask/ast/cask_block.rb b/Library/Homebrew/rubocops/cask/ast/cask_block.rb
index 98e97c0c34f5a..c05f109723ae5 100644
--- a/Library/Homebrew/rubocops/cask/ast/cask_block.rb
+++ b/Library/Homebrew/rubocops/cask/ast/cask_block.rb
@@ -1,3 +1,4 @@
+# typed: true
 # frozen_string_literal: true
 
 require "forwardable"
diff --git a/Library/Homebrew/rubocops/cask/ast/cask_header.rb b/Library/Homebrew/rubocops/cask/ast/cask_header.rb
index 7646552eecdb8..a869967a5be3f 100644
--- a/Library/Homebrew/rubocops/cask/ast/cask_header.rb
+++ b/Library/Homebrew/rubocops/cask/ast/cask_header.rb
@@ -1,3 +1,4 @@
+# typed: true
 # frozen_string_literal: true
 
 module RuboCop
diff --git a/Library/Homebrew/rubocops/cask/ast/stanza.rb b/Library/Homebrew/rubocops/cask/ast/stanza.rb
index 8a6b7a5452c21..85f0de5cc3440 100644
--- a/Library/Homebrew/rubocops/cask/ast/stanza.rb
+++ b/Library/Homebrew/rubocops/cask/ast/stanza.rb
@@ -1,3 +1,4 @@
+# typed: true
 # frozen_string_literal: true
 
 require "forwardable"
diff --git a/Library/Homebrew/rubocops/cask/constants/stanza.rb b/Library/Homebrew/rubocops/cask/constants/stanza.rb
index f4de0f313944d..3b818ac900c14 100644
--- a/Library/Homebrew/rubocops/cask/constants/stanza.rb
+++ b/Library/Homebrew/rubocops/cask/constants/stanza.rb
@@ -1,3 +1,4 @@
+# typed: true
 # frozen_string_literal: true
 
 module RuboCop
diff --git a/Library/Homebrew/rubocops/cask/desc.rb b/Library/Homebrew/rubocops/cask/desc.rb
index 90ceefab9f152..0e03da62659d8 100644
--- a/Library/Homebrew/rubocops/cask/desc.rb
+++ b/Library/Homebrew/rubocops/cask/desc.rb
@@ -1,3 +1,4 @@
+# typed: true
 # frozen_string_literal: true
 
 require "forwardable"
diff --git a/Library/Homebrew/rubocops/cask/extend/node.rb b/Library/Homebrew/rubocops/cask/extend/node.rb
index 8e179e70dc0d1..e0102bd9d1fd0 100644
--- a/Library/Homebrew/rubocops/cask/extend/node.rb
+++ b/Library/Homebrew/rubocops/cask/extend/node.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 module RuboCop
diff --git a/Library/Homebrew/rubocops/cask/extend/string.rb b/Library/Homebrew/rubocops/cask/extend/string.rb
index 73ac1a98ba1b8..6dcccff830112 100644
--- a/Library/Homebrew/rubocops/cask/extend/string.rb
+++ b/Library/Homebrew/rubocops/cask/extend/string.rb
@@ -1,3 +1,4 @@
+# typed: true
 # frozen_string_literal: true
 
 # Utility method extensions for String
diff --git a/Library/Homebrew/rubocops/cask/homepage_matches_url.rb b/Library/Homebrew/rubocops/cask/homepage_matches_url.rb
index 7d80c6405a1c0..3c12c14ac1779 100644
--- a/Library/Homebrew/rubocops/cask/homepage_matches_url.rb
+++ b/Library/Homebrew/rubocops/cask/homepage_matches_url.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "forwardable"
diff --git a/Library/Homebrew/rubocops/cask/homepage_url_trailing_slash.rb b/Library/Homebrew/rubocops/cask/homepage_url_trailing_slash.rb
index 220acaca833b6..a3a18a9caf1da 100644
--- a/Library/Homebrew/rubocops/cask/homepage_url_trailing_slash.rb
+++ b/Library/Homebrew/rubocops/cask/homepage_url_trailing_slash.rb
@@ -1,3 +1,4 @@
+# typed: true
 # frozen_string_literal: true
 
 require "forwardable"
diff --git a/Library/Homebrew/rubocops/cask/mixin/cask_help.rb b/Library/Homebrew/rubocops/cask/mixin/cask_help.rb
index 9dc0800c9c081..aa2d6eab14ee4 100644
--- a/Library/Homebrew/rubocops/cask/mixin/cask_help.rb
+++ b/Library/Homebrew/rubocops/cask/mixin/cask_help.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 module RuboCop
diff --git a/Library/Homebrew/rubocops/cask/mixin/on_desc_stanza.rb b/Library/Homebrew/rubocops/cask/mixin/on_desc_stanza.rb
index 067b6c30e4502..759b899d67b1f 100644
--- a/Library/Homebrew/rubocops/cask/mixin/on_desc_stanza.rb
+++ b/Library/Homebrew/rubocops/cask/mixin/on_desc_stanza.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 module RuboCop
diff --git a/Library/Homebrew/rubocops/cask/mixin/on_homepage_stanza.rb b/Library/Homebrew/rubocops/cask/mixin/on_homepage_stanza.rb
index f76d258faa998..97607aa56875d 100644
--- a/Library/Homebrew/rubocops/cask/mixin/on_homepage_stanza.rb
+++ b/Library/Homebrew/rubocops/cask/mixin/on_homepage_stanza.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 module RuboCop
diff --git a/Library/Homebrew/rubocops/cask/no_dsl_version.rb b/Library/Homebrew/rubocops/cask/no_dsl_version.rb
index 6e21cd85f8bb7..2d2aca942b9e5 100644
--- a/Library/Homebrew/rubocops/cask/no_dsl_version.rb
+++ b/Library/Homebrew/rubocops/cask/no_dsl_version.rb
@@ -1,3 +1,4 @@
+# typed: true
 # frozen_string_literal: true
 
 require "forwardable"
diff --git a/Library/Homebrew/rubocops/cask/stanza_grouping.rb b/Library/Homebrew/rubocops/cask/stanza_grouping.rb
index b49101e63c29a..93e5ba21eaec7 100644
--- a/Library/Homebrew/rubocops/cask/stanza_grouping.rb
+++ b/Library/Homebrew/rubocops/cask/stanza_grouping.rb
@@ -1,3 +1,4 @@
+# typed: true
 # frozen_string_literal: true
 
 require "forwardable"
diff --git a/Library/Homebrew/rubocops/cask/stanza_order.rb b/Library/Homebrew/rubocops/cask/stanza_order.rb
index 41b818df6ced5..be6af752fa6c7 100644
--- a/Library/Homebrew/rubocops/cask/stanza_order.rb
+++ b/Library/Homebrew/rubocops/cask/stanza_order.rb
@@ -1,3 +1,4 @@
+# typed: true
 # frozen_string_literal: true
 
 require "forwardable"
diff --git a/Library/Homebrew/rubocops/caveats.rb b/Library/Homebrew/rubocops/caveats.rb
index f81c4fc26f28b..577f49ac7959e 100644
--- a/Library/Homebrew/rubocops/caveats.rb
+++ b/Library/Homebrew/rubocops/caveats.rb
@@ -1,3 +1,4 @@
+# typed: true
 # frozen_string_literal: true
 
 require "rubocops/extend/formula"
diff --git a/Library/Homebrew/rubocops/checksum.rb b/Library/Homebrew/rubocops/checksum.rb
index fda9de60d1349..35edda879dcc4 100644
--- a/Library/Homebrew/rubocops/checksum.rb
+++ b/Library/Homebrew/rubocops/checksum.rb
@@ -1,3 +1,4 @@
+# typed: true
 # frozen_string_literal: true
 
 require "rubocops/extend/formula"
diff --git a/Library/Homebrew/rubocops/class.rb b/Library/Homebrew/rubocops/class.rb
index 56ce23cff1c56..d44e759673172 100644
--- a/Library/Homebrew/rubocops/class.rb
+++ b/Library/Homebrew/rubocops/class.rb
@@ -1,3 +1,4 @@
+# typed: true
 # frozen_string_literal: true
 
 require "rubocops/extend/formula"
diff --git a/Library/Homebrew/rubocops/components_order.rb b/Library/Homebrew/rubocops/components_order.rb
index d939a8ea36902..41b35478f04f0 100644
--- a/Library/Homebrew/rubocops/components_order.rb
+++ b/Library/Homebrew/rubocops/components_order.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "rubocops/extend/formula"
diff --git a/Library/Homebrew/rubocops/components_redundancy.rb b/Library/Homebrew/rubocops/components_redundancy.rb
index 1e51ef0831bdd..767306c7596da 100644
--- a/Library/Homebrew/rubocops/components_redundancy.rb
+++ b/Library/Homebrew/rubocops/components_redundancy.rb
@@ -1,3 +1,4 @@
+# typed: true
 # frozen_string_literal: true
 
 require "rubocops/extend/formula"
diff --git a/Library/Homebrew/rubocops/conflicts.rb b/Library/Homebrew/rubocops/conflicts.rb
index 318a79d47b29c..f11a9a870f521 100644
--- a/Library/Homebrew/rubocops/conflicts.rb
+++ b/Library/Homebrew/rubocops/conflicts.rb
@@ -1,3 +1,4 @@
+# typed: true
 # frozen_string_literal: true
 
 require "rubocops/extend/formula"
diff --git a/Library/Homebrew/rubocops/dependency_order.rb b/Library/Homebrew/rubocops/dependency_order.rb
index 7f24d8087cb3e..fb77e88d56c08 100644
--- a/Library/Homebrew/rubocops/dependency_order.rb
+++ b/Library/Homebrew/rubocops/dependency_order.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "rubocops/extend/formula"
diff --git a/Library/Homebrew/rubocops/deprecate_disable.rb b/Library/Homebrew/rubocops/deprecate_disable.rb
index 79f21dcfb4294..f077a2b37200c 100644
--- a/Library/Homebrew/rubocops/deprecate_disable.rb
+++ b/Library/Homebrew/rubocops/deprecate_disable.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "rubocops/extend/formula"
diff --git a/Library/Homebrew/rubocops/extend/formula.rb b/Library/Homebrew/rubocops/extend/formula.rb
index eddbac5b6cb49..f0675de9493b4 100644
--- a/Library/Homebrew/rubocops/extend/formula.rb
+++ b/Library/Homebrew/rubocops/extend/formula.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 # Silence compatibility warning.
diff --git a/Library/Homebrew/rubocops/files.rb b/Library/Homebrew/rubocops/files.rb
index d4454ad4cb9fb..7ee1de87d5037 100644
--- a/Library/Homebrew/rubocops/files.rb
+++ b/Library/Homebrew/rubocops/files.rb
@@ -1,3 +1,4 @@
+# typed: true
 # frozen_string_literal: true
 
 require "rubocops/extend/formula"
diff --git a/Library/Homebrew/rubocops/formula_desc.rb b/Library/Homebrew/rubocops/formula_desc.rb
index 57e5066e133fd..f839e5571b77c 100644
--- a/Library/Homebrew/rubocops/formula_desc.rb
+++ b/Library/Homebrew/rubocops/formula_desc.rb
@@ -1,3 +1,4 @@
+# typed: true
 # frozen_string_literal: true
 
 require "rubocops/extend/formula"
diff --git a/Library/Homebrew/rubocops/homepage.rb b/Library/Homebrew/rubocops/homepage.rb
index 0ea79d8e4262f..d1e3b06d1162a 100644
--- a/Library/Homebrew/rubocops/homepage.rb
+++ b/Library/Homebrew/rubocops/homepage.rb
@@ -1,3 +1,4 @@
+# typed: true
 # frozen_string_literal: true
 
 require "rubocops/extend/formula"
diff --git a/Library/Homebrew/rubocops/keg_only.rb b/Library/Homebrew/rubocops/keg_only.rb
index 6a578b5f7c0f8..3b811f07b8323 100644
--- a/Library/Homebrew/rubocops/keg_only.rb
+++ b/Library/Homebrew/rubocops/keg_only.rb
@@ -1,3 +1,4 @@
+# typed: true
 # frozen_string_literal: true
 
 require "rubocops/extend/formula"
diff --git a/Library/Homebrew/rubocops/lines.rb b/Library/Homebrew/rubocops/lines.rb
index 9f7dfe437a8d1..9cb7dc7a13dc3 100644
--- a/Library/Homebrew/rubocops/lines.rb
+++ b/Library/Homebrew/rubocops/lines.rb
@@ -1,3 +1,4 @@
+# typed: true
 # frozen_string_literal: true
 
 require "rubocops/extend/formula"
diff --git a/Library/Homebrew/rubocops/livecheck.rb b/Library/Homebrew/rubocops/livecheck.rb
index 3bf74d1c839c6..c7f21adb2a186 100644
--- a/Library/Homebrew/rubocops/livecheck.rb
+++ b/Library/Homebrew/rubocops/livecheck.rb
@@ -1,3 +1,4 @@
+# typed: true
 # frozen_string_literal: true
 
 require "rubocops/extend/formula"
diff --git a/Library/Homebrew/rubocops/options.rb b/Library/Homebrew/rubocops/options.rb
index 907a98c18bd3f..f971548bd6125 100644
--- a/Library/Homebrew/rubocops/options.rb
+++ b/Library/Homebrew/rubocops/options.rb
@@ -1,3 +1,4 @@
+# typed: true
 # frozen_string_literal: true
 
 require "rubocops/extend/formula"
diff --git a/Library/Homebrew/rubocops/patches.rb b/Library/Homebrew/rubocops/patches.rb
index 03c9aa8d14a02..6ed4157c5dcbb 100644
--- a/Library/Homebrew/rubocops/patches.rb
+++ b/Library/Homebrew/rubocops/patches.rb
@@ -1,3 +1,4 @@
+# typed: true
 # frozen_string_literal: true
 
 require "rubocops/extend/formula"
diff --git a/Library/Homebrew/rubocops/rubocop-cask.rb b/Library/Homebrew/rubocops/rubocop-cask.rb
index 646e483994bf6..fbba19daf4a26 100644
--- a/Library/Homebrew/rubocops/rubocop-cask.rb
+++ b/Library/Homebrew/rubocops/rubocop-cask.rb
@@ -1,3 +1,4 @@
+# typed: strict
 # frozen_string_literal: true
 
 require "rubocop"
diff --git a/Library/Homebrew/rubocops/shared/desc_helper.rb b/Library/Homebrew/rubocops/shared/desc_helper.rb
index 22113414dc275..a3beae3e702e5 100644
--- a/Library/Homebrew/rubocops/shared/desc_helper.rb
+++ b/Library/Homebrew/rubocops/shared/desc_helper.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "rubocops/shared/helper_functions"
diff --git a/Library/Homebrew/rubocops/shared/helper_functions.rb b/Library/Homebrew/rubocops/shared/helper_functions.rb
index 8b7388f94ca0b..5fc65ced98697 100644
--- a/Library/Homebrew/rubocops/shared/helper_functions.rb
+++ b/Library/Homebrew/rubocops/shared/helper_functions.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 module RuboCop
diff --git a/Library/Homebrew/rubocops/text.rb b/Library/Homebrew/rubocops/text.rb
index b8fa914e4d3c1..30417d0edd0d4 100644
--- a/Library/Homebrew/rubocops/text.rb
+++ b/Library/Homebrew/rubocops/text.rb
@@ -1,3 +1,4 @@
+# typed: true
 # frozen_string_literal: true
 
 require "rubocops/extend/formula"
diff --git a/Library/Homebrew/rubocops/urls.rb b/Library/Homebrew/rubocops/urls.rb
index b23883d0cda4c..83db786b8fe46 100644
--- a/Library/Homebrew/rubocops/urls.rb
+++ b/Library/Homebrew/rubocops/urls.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "rubocops/extend/formula"
diff --git a/Library/Homebrew/rubocops/uses_from_macos.rb b/Library/Homebrew/rubocops/uses_from_macos.rb
index a71b6666ef4aa..e164640615fb3 100644
--- a/Library/Homebrew/rubocops/uses_from_macos.rb
+++ b/Library/Homebrew/rubocops/uses_from_macos.rb
@@ -1,3 +1,4 @@
+# typed: true
 # frozen_string_literal: true
 
 require "rubocops/extend/formula"
diff --git a/Library/Homebrew/rubocops/version.rb b/Library/Homebrew/rubocops/version.rb
index de47a9d290c45..2b6b53c01173c 100644
--- a/Library/Homebrew/rubocops/version.rb
+++ b/Library/Homebrew/rubocops/version.rb
@@ -1,3 +1,4 @@
+# typed: true
 # frozen_string_literal: true
 
 require "rubocops/extend/formula"
diff --git a/Library/Homebrew/sandbox.rb b/Library/Homebrew/sandbox.rb
index a0ab6c2141511..5fdf3f491d073 100644
--- a/Library/Homebrew/sandbox.rb
+++ b/Library/Homebrew/sandbox.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "erb"
diff --git a/Library/Homebrew/search.rb b/Library/Homebrew/search.rb
index 29fe98e8c2e7a..942083a1c9f7e 100644
--- a/Library/Homebrew/search.rb
+++ b/Library/Homebrew/search.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "searchable"
diff --git a/Library/Homebrew/searchable.rb b/Library/Homebrew/searchable.rb
index 9b9adc7606468..634b84b56161c 100644
--- a/Library/Homebrew/searchable.rb
+++ b/Library/Homebrew/searchable.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 # Helper module for making a class searchable with both regular expressions and strings.
diff --git a/Library/Homebrew/software_spec.rb b/Library/Homebrew/software_spec.rb
index 91ff124c09694..06f419608c4dc 100644
--- a/Library/Homebrew/software_spec.rb
+++ b/Library/Homebrew/software_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "resource"
diff --git a/Library/Homebrew/sorbet/files.yaml b/Library/Homebrew/sorbet/files.yaml
index 8eb08f59ae6c3..b3db036f73deb 100644
--- a/Library/Homebrew/sorbet/files.yaml
+++ b/Library/Homebrew/sorbet/files.yaml
@@ -1,964 +1,3 @@
-false:
-  - ./PATH.rb
-  - ./bintray.rb
-  - ./brew.rb
-  - ./build.rb
-  - ./build_environment.rb
-  - ./cask/artifact/abstract_artifact.rb
-  - ./cask/artifact/abstract_flight_block.rb
-  - ./cask/artifact/abstract_uninstall.rb
-  - ./cask/artifact/app.rb
-  - ./cask/artifact/artifact.rb
-  - ./cask/artifact/audio_unit_plugin.rb
-  - ./cask/artifact/binary.rb
-  - ./cask/artifact/colorpicker.rb
-  - ./cask/artifact/dictionary.rb
-  - ./cask/artifact/font.rb
-  - ./cask/artifact/input_method.rb
-  - ./cask/artifact/installer.rb
-  - ./cask/artifact/internet_plugin.rb
-  - ./cask/artifact/manpage.rb
-  - ./cask/artifact/mdimporter.rb
-  - ./cask/artifact/moved.rb
-  - ./cask/artifact/pkg.rb
-  - ./cask/artifact/postflight_block.rb
-  - ./cask/artifact/preflight_block.rb
-  - ./cask/artifact/prefpane.rb
-  - ./cask/artifact/qlplugin.rb
-  - ./cask/artifact/relocated.rb
-  - ./cask/artifact/screen_saver.rb
-  - ./cask/artifact/service.rb
-  - ./cask/artifact/stage_only.rb
-  - ./cask/artifact/suite.rb
-  - ./cask/artifact/symlinked.rb
-  - ./cask/artifact/uninstall.rb
-  - ./cask/artifact/vst3_plugin.rb
-  - ./cask/artifact/vst_plugin.rb
-  - ./cask/artifact/zap.rb
-  - ./cask/audit.rb
-  - ./cask/auditor.rb
-  - ./cask/cask.rb
-  - ./cask/cask_loader.rb
-  - ./cask/caskroom.rb
-  - ./cask/cmd.rb
-  - ./cask/cmd/--cache.rb
-  - ./cask/cmd/abstract_command.rb
-  - ./cask/cmd/abstract_internal_command.rb
-  - ./cask/cmd/audit.rb
-  - ./cask/cmd/cat.rb
-  - ./cask/cmd/create.rb
-  - ./cask/cmd/doctor.rb
-  - ./cask/cmd/edit.rb
-  - ./cask/cmd/fetch.rb
-  - ./cask/cmd/help.rb
-  - ./cask/cmd/home.rb
-  - ./cask/cmd/info.rb
-  - ./cask/cmd/install.rb
-  - ./cask/cmd/internal_help.rb
-  - ./cask/cmd/internal_stanza.rb
-  - ./cask/cmd/list.rb
-  - ./cask/cmd/outdated.rb
-  - ./cask/cmd/reinstall.rb
-  - ./cask/cmd/style.rb
-  - ./cask/cmd/uninstall.rb
-  - ./cask/cmd/upgrade.rb
-  - ./cask/cmd/zap.rb
-  - ./cask/config.rb
-  - ./cask/download.rb
-  - ./cask/dsl.rb
-  - ./cask/dsl/appcast.rb
-  - ./cask/dsl/base.rb
-  - ./cask/dsl/caveats.rb
-  - ./cask/dsl/conflicts_with.rb
-  - ./cask/dsl/container.rb
-  - ./cask/dsl/depends_on.rb
-  - ./cask/dsl/postflight.rb
-  - ./cask/dsl/preflight.rb
-  - ./cask/dsl/uninstall_preflight.rb
-  - ./cask/dsl/version.rb
-  - ./cask/exceptions.rb
-  - ./cask/installer.rb
-  - ./cask/metadata.rb
-  - ./cask/pkg.rb
-  - ./cask/quarantine.rb
-  - ./cask/staged.rb
-  - ./cask/topological_hash.rb
-  - ./cask/utils.rb
-  - ./cask/verify.rb
-  - ./caveats.rb
-  - ./cleanup.rb
-  - ./cli/parser.rb
-  - ./cmd/--cache.rb
-  - ./cmd/--caskroom.rb
-  - ./cmd/--cellar.rb
-  - ./cmd/--env.rb
-  - ./cmd/--prefix.rb
-  - ./cmd/--repository.rb
-  - ./cmd/--version.rb
-  - ./cmd/analytics.rb
-  - ./cmd/cask.rb
-  - ./cmd/cleanup.rb
-  - ./cmd/commands.rb
-  - ./cmd/config.rb
-  - ./cmd/deps.rb
-  - ./cmd/desc.rb
-  - ./cmd/doctor.rb
-  - ./cmd/fetch.rb
-  - ./cmd/gist-logs.rb
-  - ./cmd/help.rb
-  - ./cmd/home.rb
-  - ./cmd/info.rb
-  - ./cmd/install.rb
-  - ./cmd/leaves.rb
-  - ./cmd/link.rb
-  - ./cmd/list.rb
-  - ./cmd/log.rb
-  - ./cmd/migrate.rb
-  - ./cmd/missing.rb
-  - ./cmd/options.rb
-  - ./cmd/outdated.rb
-  - ./cmd/pin.rb
-  - ./cmd/postinstall.rb
-  - ./cmd/readall.rb
-  - ./cmd/reinstall.rb
-  - ./cmd/search.rb
-  - ./cmd/switch.rb
-  - ./cmd/tap-info.rb
-  - ./cmd/tap.rb
-  - ./cmd/uninstall.rb
-  - ./cmd/unlink.rb
-  - ./cmd/unpin.rb
-  - ./cmd/untap.rb
-  - ./cmd/update-report.rb
-  - ./cmd/upgrade.rb
-  - ./cmd/uses.rb
-  - ./commands.rb
-  - ./compat/language/haskell.rb
-  - ./compat/language/java.rb
-  - ./compat/language/python.rb
-  - ./cxxstdlib.rb
-  - ./debrew.rb
-  - ./debrew/irb.rb
-  - ./dependencies.rb
-  - ./dependency.rb
-  - ./dev-cmd/audit.rb
-  - ./dev-cmd/bottle.rb
-  - ./dev-cmd/bump-cask-pr.rb
-  - ./dev-cmd/bump-formula-pr.rb
-  - ./dev-cmd/bump-revision.rb
-  - ./dev-cmd/cat.rb
-  - ./dev-cmd/command.rb
-  - ./dev-cmd/create.rb
-  - ./dev-cmd/diy.rb
-  - ./dev-cmd/edit.rb
-  - ./dev-cmd/extract.rb
-  - ./dev-cmd/formula.rb
-  - ./dev-cmd/install-bundler-gems.rb
-  - ./dev-cmd/irb.rb
-  - ./dev-cmd/linkage.rb
-  - ./dev-cmd/livecheck.rb
-  - ./dev-cmd/man.rb
-  - ./dev-cmd/mirror.rb
-  - ./dev-cmd/pr-automerge.rb
-  - ./dev-cmd/pr-publish.rb
-  - ./dev-cmd/pr-pull.rb
-  - ./dev-cmd/pr-upload.rb
-  - ./dev-cmd/prof.rb
-  - ./dev-cmd/pull.rb
-  - ./dev-cmd/release-notes.rb
-  - ./dev-cmd/ruby.rb
-  - ./dev-cmd/sh.rb
-  - ./dev-cmd/sponsors.rb
-  - ./dev-cmd/style.rb
-  - ./dev-cmd/tap-new.rb
-  - ./dev-cmd/test.rb
-  - ./dev-cmd/tests.rb
-  - ./dev-cmd/typecheck.rb
-  - ./dev-cmd/unpack.rb
-  - ./dev-cmd/update-license-data.rb
-  - ./dev-cmd/update-python-resources.rb
-  - ./dev-cmd/update-test.rb
-  - ./dev-cmd/vendor-gems.rb
-  - ./development_tools.rb
-  - ./diagnostic.rb
-  - ./download_strategy.rb
-  - ./exceptions.rb
-  - ./extend/ENV.rb
-  - ./extend/ENV/shared.rb
-  - ./extend/ENV/std.rb
-  - ./extend/ENV/super.rb
-  - ./extend/git_repository.rb
-  - ./extend/hash_validator.rb
-  - ./extend/io.rb
-  - ./extend/module.rb
-  - ./extend/os/linux/dependency_collector.rb
-  - ./extend/os/linux/diagnostic.rb
-  - ./extend/os/linux/extend/ENV/shared.rb
-  - ./extend/os/linux/extend/ENV/std.rb
-  - ./extend/os/linux/extend/ENV/super.rb
-  - ./extend/os/linux/formula_cellar_checks.rb
-  - ./extend/os/linux/hardware/cpu.rb
-  - ./extend/os/linux/install.rb
-  - ./extend/os/linux/keg_relocate.rb
-  - ./extend/os/linux/linkage_checker.rb
-  - ./extend/os/linux/readall.rb
-  - ./extend/os/linux/requirements/java_requirement.rb
-  - ./extend/os/linux/requirements/osxfuse_requirement.rb
-  - ./extend/os/linux/system_config.rb
-  - ./extend/os/linux/tap.rb
-  - ./extend/os/linux/utils/analytics.rb
-  - ./extend/os/mac/caveats.rb
-  - ./extend/os/mac/dependency_collector.rb
-  - ./extend/os/mac/development_tools.rb
-  - ./extend/os/mac/diagnostic.rb
-  - ./extend/os/mac/extend/ENV/shared.rb
-  - ./extend/os/mac/extend/ENV/std.rb
-  - ./extend/os/mac/extend/ENV/super.rb
-  - ./extend/os/mac/extend/pathname.rb
-  - ./extend/os/mac/formula_cellar_checks.rb
-  - ./extend/os/mac/hardware.rb
-  - ./extend/os/mac/hardware/cpu.rb
-  - ./extend/os/mac/keg_relocate.rb
-  - ./extend/os/mac/language/java.rb
-  - ./extend/os/mac/missing_formula.rb
-  - ./extend/os/mac/requirements/java_requirement.rb
-  - ./extend/os/mac/requirements/osxfuse_requirement.rb
-  - ./extend/os/mac/requirements/x11_requirement.rb
-  - ./extend/os/mac/search.rb
-  - ./extend/os/mac/software_spec.rb
-  - ./extend/os/mac/system_config.rb
-  - ./extend/os/mac/unpack_strategy/zip.rb
-  - ./extend/os/mac/utils/bottles.rb
-  - ./extend/pathname.rb
-  - ./extend/predicable.rb
-  - ./extend/string.rb
-  - ./formula.rb
-  - ./formula_assertions.rb
-  - ./formula_cellar_checks.rb
-  - ./formula_creator.rb
-  - ./formula_info.rb
-  - ./formula_installer.rb
-  - ./formula_versions.rb
-  - ./formulary.rb
-  - ./global.rb
-  - ./keg.rb
-  - ./keg_relocate.rb
-  - ./language/node.rb
-  - ./language/python.rb
-  - ./linkage_checker.rb
-  - ./lock_file.rb
-  - ./migrator.rb
-  - ./missing_formula.rb
-  - ./mktemp.rb
-  - ./options.rb
-  - ./os/linux/elf.rb
-  - ./os/linux/global.rb
-  - ./os/mac.rb
-  - ./os/mac/architecture_list.rb
-  - ./os/mac/keg.rb
-  - ./os/mac/mach.rb
-  - ./os/mac/sdk.rb
-  - ./os/mac/version.rb
-  - ./os/mac/xcode.rb
-  - ./os/mac/xquartz.rb
-  - ./patch.rb
-  - ./pkg_version.rb
-  - ./postinstall.rb
-  - ./readall.rb
-  - ./requirement.rb
-  - ./requirements/arch_requirement.rb
-  - ./requirements/codesign_requirement.rb
-  - ./requirements/java_requirement.rb
-  - ./requirements/linux_requirement.rb
-  - ./requirements/macos_requirement.rb
-  - ./requirements/tuntap_requirement.rb
-  - ./requirements/x11_requirement.rb
-  - ./requirements/xcode_requirement.rb
-  - ./resource.rb
-  - ./rubocops/cask/ast/cask_block.rb
-  - ./rubocops/cask/extend/node.rb
-  - ./rubocops/cask/homepage_matches_url.rb
-  - ./rubocops/cask/homepage_url_trailing_slash.rb
-  - ./rubocops/cask/mixin/cask_help.rb
-  - ./rubocops/cask/mixin/on_desc_stanza.rb
-  - ./rubocops/cask/mixin/on_homepage_stanza.rb
-  - ./rubocops/cask/no_dsl_version.rb
-  - ./rubocops/cask/stanza_grouping.rb
-  - ./rubocops/cask/stanza_order.rb
-  - ./rubocops/caveats.rb
-  - ./rubocops/checksum.rb
-  - ./rubocops/class.rb
-  - ./rubocops/components_order.rb
-  - ./rubocops/components_redundancy.rb
-  - ./rubocops/conflicts.rb
-  - ./rubocops/dependency_order.rb
-  - ./rubocops/extend/formula.rb
-  - ./rubocops/files.rb
-  - ./rubocops/formula_desc.rb
-  - ./rubocops/homepage.rb
-  - ./rubocops/keg_only.rb
-  - ./rubocops/lines.rb
-  - ./rubocops/options.rb
-  - ./rubocops/patches.rb
-  - ./rubocops/shared/desc_helper.rb
-  - ./rubocops/shared/helper_functions.rb
-  - ./rubocops/text.rb
-  - ./rubocops/urls.rb
-  - ./rubocops/uses_from_macos.rb
-  - ./rubocops/version.rb
-  - ./sandbox.rb
-  - ./search.rb
-  - ./searchable.rb
-  - ./software_spec.rb
-  - ./style.rb
-  - ./system_command.rb
-  - ./system_config.rb
-  - ./tab.rb
-  - ./tap.rb
-  - ./test.rb
-  - ./test/ENV_spec.rb
-  - ./test/PATH_spec.rb
-  - ./test/bash_spec.rb
-  - ./test/bintray_spec.rb
-  - ./test/bottle_filename_spec.rb
-  - ./test/build_environment_spec.rb
-  - ./test/build_options_spec.rb
-  - ./test/cache_store_spec.rb
-  - ./test/cask/artifact/alt_target_spec.rb
-  - ./test/cask/artifact/app_spec.rb
-  - ./test/cask/artifact/binary_spec.rb
-  - ./test/cask/artifact/generic_artifact_spec.rb
-  - ./test/cask/artifact/installer_spec.rb
-  - ./test/cask/artifact/manpage_spec.rb
-  - ./test/cask/artifact/pkg_spec.rb
-  - ./test/cask/artifact/postflight_block_spec.rb
-  - ./test/cask/artifact/preflight_block_spec.rb
-  - ./test/cask/artifact/shared_examples/uninstall_zap.rb
-  - ./test/cask/artifact/suite_spec.rb
-  - ./test/cask/artifact/two_apps_correct_spec.rb
-  - ./test/cask/artifact/uninstall_no_zap_spec.rb
-  - ./test/cask/artifact/uninstall_spec.rb
-  - ./test/cask/artifact/zap_spec.rb
-  - ./test/cask/audit_spec.rb
-  - ./test/cask/cask_loader/from__path_loader_spec.rb
-  - ./test/cask/cask_loader/from_content_loader_spec.rb
-  - ./test/cask/cask_loader/from_uri_loader_spec.rb
-  - ./test/cask/cask_spec.rb
-  - ./test/cask/cmd/audit_spec.rb
-  - ./test/cask/cmd/cache_spec.rb
-  - ./test/cask/cmd/cat_spec.rb
-  - ./test/cask/cmd/create_spec.rb
-  - ./test/cask/cmd/doctor_spec.rb
-  - ./test/cask/cmd/edit_spec.rb
-  - ./test/cask/cmd/fetch_spec.rb
-  - ./test/cask/cmd/home_spec.rb
-  - ./test/cask/cmd/info_spec.rb
-  - ./test/cask/cmd/install_spec.rb
-  - ./test/cask/cmd/internal_stanza_spec.rb
-  - ./test/cask/cmd/list_spec.rb
-  - ./test/cask/cmd/outdated_spec.rb
-  - ./test/cask/cmd/reinstall_spec.rb
-  - ./test/cask/cmd/shared_examples/invalid_option.rb
-  - ./test/cask/cmd/shared_examples/requires_cask_token.rb
-  - ./test/cask/cmd/style_spec.rb
-  - ./test/cask/cmd/uninstall_spec.rb
-  - ./test/cask/cmd/upgrade_spec.rb
-  - ./test/cask/cmd/zap_spec.rb
-  - ./test/cask/cmd_spec.rb
-  - ./test/cask/config_spec.rb
-  - ./test/cask/conflicts_with_spec.rb
-  - ./test/cask/denylist_spec.rb
-  - ./test/cask/depends_on_spec.rb
-  - ./test/cask/dsl/appcast_spec.rb
-  - ./test/cask/dsl/caveats_spec.rb
-  - ./test/cask/dsl/postflight_spec.rb
-  - ./test/cask/dsl/preflight_spec.rb
-  - ./test/cask/dsl/shared_examples/base.rb
-  - ./test/cask/dsl/shared_examples/staged.rb
-  - ./test/cask/dsl/uninstall_postflight_spec.rb
-  - ./test/cask/dsl/uninstall_preflight_spec.rb
-  - ./test/cask/dsl/version_spec.rb
-  - ./test/cask/dsl_spec.rb
-  - ./test/cask/installer_spec.rb
-  - ./test/cask/macos_spec.rb
-  - ./test/cask/pkg_spec.rb
-  - ./test/cask/quarantine_spec.rb
-  - ./test/cask/verify_spec.rb
-  - ./test/cask_dependent_spec.rb
-  - ./test/caveats_spec.rb
-  - ./test/checksum_spec.rb
-  - ./test/checksum_verification_spec.rb
-  - ./test/cleaner_spec.rb
-  - ./test/cleanup_spec.rb
-  - ./test/cli/parser_spec.rb
-  - ./test/cmd/--cache_spec.rb
-  - ./test/cmd/--caskroom_spec.rb
-  - ./test/cmd/--cellar_spec.rb
-  - ./test/cmd/--env_spec.rb
-  - ./test/cmd/--prefix_spec.rb
-  - ./test/cmd/--repository_spec.rb
-  - ./test/cmd/--version_spec.rb
-  - ./test/cmd/analytics_spec.rb
-  - ./test/cmd/bundle_spec.rb
-  - ./test/cmd/cask_spec.rb
-  - ./test/cmd/cleanup_spec.rb
-  - ./test/cmd/commands_spec.rb
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-  - ./test/cmd/deps_spec.rb
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-  - ./test/cmd/home_spec.rb
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-  - ./test/cmd/outdated_spec.rb
-  - ./test/cmd/pin_spec.rb
-  - ./test/cmd/postinstall_spec.rb
-  - ./test/cmd/readall_spec.rb
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-  - ./test/cmd/search_spec.rb
-  - ./test/cmd/services_spec.rb
-  - ./test/cmd/shared_examples/args_parse.rb
-  - ./test/cmd/switch_spec.rb
-  - ./test/cmd/tap-info_spec.rb
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-  - ./test/cmd/uninstall_spec.rb
-  - ./test/cmd/unlink_spec.rb
-  - ./test/cmd/unpin_spec.rb
-  - ./test/cmd/untap_spec.rb
-  - ./test/cmd/update-report_spec.rb
-  - ./test/cmd/upgrade_spec.rb
-  - ./test/cmd/uses_spec.rb
-  - ./test/commands_spec.rb
-  - ./test/compiler_failure_spec.rb
-  - ./test/compiler_selector_spec.rb
-  - ./test/cxxstdlib_spec.rb
-  - ./test/dependable_spec.rb
-  - ./test/dependencies_helpers_spec.rb
-  - ./test/dependencies_spec.rb
-  - ./test/dependency_collector_spec.rb
-  - ./test/dependency_expansion_spec.rb
-  - ./test/dependency_spec.rb
-  - ./test/description_cache_store_spec.rb
-  - ./test/descriptions_spec.rb
-  - ./test/dev-cmd/audit_spec.rb
-  - ./test/dev-cmd/bottle_spec.rb
-  - ./test/dev-cmd/bump-cask-pr_spec.rb
-  - ./test/dev-cmd/bump-formula-pr_spec.rb
-  - ./test/dev-cmd/bump-revision_spec.rb
-  - ./test/dev-cmd/cat_spec.rb
-  - ./test/dev-cmd/command_spec.rb
-  - ./test/dev-cmd/create_spec.rb
-  - ./test/dev-cmd/diy_spec.rb
-  - ./test/dev-cmd/edit_spec.rb
-  - ./test/dev-cmd/extract_spec.rb
-  - ./test/dev-cmd/formula_spec.rb
-  - ./test/dev-cmd/irb_spec.rb
-  - ./test/dev-cmd/linkage_spec.rb
-  - ./test/dev-cmd/man_spec.rb
-  - ./test/dev-cmd/mirror_spec.rb
-  - ./test/dev-cmd/pr-automerge_spec.rb
-  - ./test/dev-cmd/pr-publish_spec.rb
-  - ./test/dev-cmd/pr-pull_spec.rb
-  - ./test/dev-cmd/pr-upload_spec.rb
-  - ./test/dev-cmd/prof_spec.rb
-  - ./test/dev-cmd/release-notes_spec.rb
-  - ./test/dev-cmd/ruby_spec.rb
-  - ./test/dev-cmd/sh_spec.rb
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-  - ./test/dev-cmd/unpack_spec.rb
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-  - ./test/dev-cmd/vendor-gems_spec.rb
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-  - ./test/env_config_spec.rb
-  - ./test/error_during_execution_spec.rb
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-  - ./test/formula_free_port_spec.rb
-  - ./test/formula_info_spec.rb
-  - ./test/formula_installer_bottle_spec.rb
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-  - ./test/formula_pin_spec.rb
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-  - ./test/hardware/cpu_spec.rb
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-  - ./test/language/perl/shebang_spec.rb
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-  - ./test/livecheck_spec.rb
-  - ./test/locale_spec.rb
-  - ./test/lock_file_spec.rb
-  - ./test/messages_spec.rb
-  - ./test/migrator_spec.rb
-  - ./test/missing_formula_spec.rb
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-  - ./test/os/linux/dependency_collector_spec.rb
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-  - ./test/pkg_version_spec.rb
-  - ./test/requirement_spec.rb
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-  - ./test/requirements/java_requirement_spec.rb
-  - ./test/requirements/linux_requirement_spec.rb
-  - ./test/requirements/macos_requirement_spec.rb
-  - ./test/requirements/osxfuse_requirement_spec.rb
-  - ./test/requirements_spec.rb
-  - ./test/resource_spec.rb
-  - ./test/rubocop_spec.rb
-  - ./test/rubocops/cask/desc_spec.rb
-  - ./test/rubocops/cask/homepage_matches_url_spec.rb
-  - ./test/rubocops/cask/homepage_url_trailing_slash_spec.rb
-  - ./test/rubocops/cask/no_dsl_version_spec.rb
-  - ./test/rubocops/cask/shared_examples/cask_cop.rb
-  - ./test/rubocops/cask/stanza_grouping_spec.rb
-  - ./test/rubocops/cask/stanza_order_spec.rb
-  - ./test/rubocops/caveats_spec.rb
-  - ./test/rubocops/checksum_spec.rb
-  - ./test/rubocops/class_spec.rb
-  - ./test/rubocops/components_order_spec.rb
-  - ./test/rubocops/components_redundancy_spec.rb
-  - ./test/rubocops/conflicts_spec.rb
-  - ./test/rubocops/dependency_order_spec.rb
-  - ./test/rubocops/files_spec.rb
-  - ./test/rubocops/formula_desc_spec.rb
-  - ./test/rubocops/homepage_spec.rb
-  - ./test/rubocops/keg_only_spec.rb
-  - ./test/rubocops/lines_spec.rb
-  - ./test/rubocops/options_spec.rb
-  - ./test/rubocops/patches_spec.rb
-  - ./test/rubocops/text_spec.rb
-  - ./test/rubocops/urls_spec.rb
-  - ./test/rubocops/uses_from_macos_spec.rb
-  - ./test/rubocops/version_spec.rb
-  - ./test/sandbox_spec.rb
-  - ./test/search_spec.rb
-  - ./test/searchable_spec.rb
-  - ./test/software_spec_spec.rb
-  - ./test/spec_helper.rb
-  - ./test/string_spec.rb
-  - ./test/style_spec.rb
-  - ./test/support/fixtures/cask/Casks/adobe-air.rb
-  - ./test/support/fixtures/cask/Casks/adobe-illustrator.rb
-  - ./test/support/fixtures/cask/Casks/appdir-interpolation.rb
-  - ./test/support/fixtures/cask/Casks/auto-updates.rb
-  - ./test/support/fixtures/cask/Casks/bad-checksum.rb
-  - ./test/support/fixtures/cask/Casks/bad-checksum2.rb
-  - ./test/support/fixtures/cask/Casks/basic-cask.rb
-  - ./test/support/fixtures/cask/Casks/booby-trap.rb
-  - ./test/support/fixtures/cask/Casks/compat/with-depends-on-macos-string.rb
-  - ./test/support/fixtures/cask/Casks/container-7z.rb
-  - ./test/support/fixtures/cask/Casks/container-bzip2.rb
-  - ./test/support/fixtures/cask/Casks/container-cab.rb
-  - ./test/support/fixtures/cask/Casks/container-dmg.rb
-  - ./test/support/fixtures/cask/Casks/container-gzip.rb
-  - ./test/support/fixtures/cask/Casks/container-pkg.rb
-  - ./test/support/fixtures/cask/Casks/container-tar-gz.rb
-  - ./test/support/fixtures/cask/Casks/container-xar.rb
-  - ./test/support/fixtures/cask/Casks/devmate-with-appcast.rb
-  - ./test/support/fixtures/cask/Casks/devmate-without-appcast.rb
-  - ./test/support/fixtures/cask/Casks/generic-artifact-absolute-target.rb
-  - ./test/support/fixtures/cask/Casks/generic-artifact-relative-target.rb
-  - ./test/support/fixtures/cask/Casks/github-with-appcast.rb
-  - ./test/support/fixtures/cask/Casks/github-without-appcast.rb
-  - ./test/support/fixtures/cask/Casks/hockeyapp-with-appcast.rb
-  - ./test/support/fixtures/cask/Casks/hockeyapp-without-appcast.rb
-  - ./test/support/fixtures/cask/Casks/installer-with-uninstall.rb
-  - ./test/support/fixtures/cask/Casks/invalid-sha256.rb
-  - ./test/support/fixtures/cask/Casks/invalid/invalid-appcast-multiple.rb
-  - ./test/support/fixtures/cask/Casks/invalid/invalid-appcast-url.rb
-  - ./test/support/fixtures/cask/Casks/invalid/invalid-conflicts-with-key.rb
-  - ./test/support/fixtures/cask/Casks/invalid/invalid-depends-on-arch-value.rb
-  - ./test/support/fixtures/cask/Casks/invalid/invalid-depends-on-key.rb
-  - ./test/support/fixtures/cask/Casks/invalid/invalid-depends-on-macos-bad-release.rb
-  - ./test/support/fixtures/cask/Casks/invalid/invalid-depends-on-macos-conflicting-forms.rb
-  - ./test/support/fixtures/cask/Casks/invalid/invalid-depends-on-x11-value.rb
-  - ./test/support/fixtures/cask/Casks/invalid/invalid-generic-artifact-no-target.rb
-  - ./test/support/fixtures/cask/Casks/invalid/invalid-header-format.rb
-  - ./test/support/fixtures/cask/Casks/invalid/invalid-header-token-mismatch.rb
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-  - ./test/support/fixtures/cask/Casks/invalid/invalid-manpage-no-section.rb
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-  - ./test/support/fixtures/cask/Casks/invalid/invalid-two-url.rb
-  - ./test/support/fixtures/cask/Casks/invalid/invalid-two-version.rb
-  - ./test/support/fixtures/cask/Casks/latest-with-appcast.rb
-  - ./test/support/fixtures/cask/Casks/latest-with-auto-updates.rb
-  - ./test/support/fixtures/cask/Casks/local-caffeine.rb
-  - ./test/support/fixtures/cask/Casks/local-transmission.rb
-  - ./test/support/fixtures/cask/Casks/missing-checksum.rb
-  - ./test/support/fixtures/cask/Casks/missing-homepage.rb
-  - ./test/support/fixtures/cask/Casks/missing-name.rb
-  - ./test/support/fixtures/cask/Casks/missing-sha256.rb
-  - ./test/support/fixtures/cask/Casks/missing-url.rb
-  - ./test/support/fixtures/cask/Casks/missing-version.rb
-  - ./test/support/fixtures/cask/Casks/naked-executable.rb
-  - ./test/support/fixtures/cask/Casks/nested-app.rb
-  - ./test/support/fixtures/cask/Casks/no-checksum.rb
-  - ./test/support/fixtures/cask/Casks/no-dsl-version.rb
-  - ./test/support/fixtures/cask/Casks/osdn-correct-url-format.rb
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-  - ./test/support/fixtures/cask/Casks/outdated/auto-updates.rb
-  - ./test/support/fixtures/cask/Casks/outdated/bad-checksum.rb
-  - ./test/support/fixtures/cask/Casks/outdated/bad-checksum2.rb
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-  - ./test/support/fixtures/cask/Casks/outdated/version-latest.rb
-  - ./test/support/fixtures/cask/Casks/outdated/will-fail-if-upgraded.rb
-  - ./test/support/fixtures/cask/Casks/pkg-without-uninstall.rb
-  - ./test/support/fixtures/cask/Casks/sha256-for-empty-string.rb
-  - ./test/support/fixtures/cask/Casks/sourceforge-correct-url-format.rb
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-  - ./test/support/fixtures/cask/Casks/sourceforge-version-latest-correct-url-format.rb
-  - ./test/support/fixtures/cask/Casks/sourceforge-with-appcast.rb
-  - ./test/support/fixtures/cask/Casks/stage-only.rb
-  - ./test/support/fixtures/cask/Casks/test-opera-mail.rb
-  - ./test/support/fixtures/cask/Casks/test-opera.rb
-  - ./test/support/fixtures/cask/Casks/version-latest-string.rb
-  - ./test/support/fixtures/cask/Casks/version-latest-with-checksum.rb
-  - ./test/support/fixtures/cask/Casks/version-latest.rb
-  - ./test/support/fixtures/cask/Casks/will-fail-if-upgraded.rb
-  - ./test/support/fixtures/cask/Casks/with-allow-untrusted.rb
-  - ./test/support/fixtures/cask/Casks/with-alt-target.rb
-  - ./test/support/fixtures/cask/Casks/with-appcast.rb
-  - ./test/support/fixtures/cask/Casks/with-auto-updates.rb
-  - ./test/support/fixtures/cask/Casks/with-autodetected-manpage-section.rb
-  - ./test/support/fixtures/cask/Casks/with-binary.rb
-  - ./test/support/fixtures/cask/Casks/with-caveats.rb
-  - ./test/support/fixtures/cask/Casks/with-choices.rb
-  - ./test/support/fixtures/cask/Casks/with-conditional-caveats.rb
-  - ./test/support/fixtures/cask/Casks/with-conflicts-with.rb
-  - ./test/support/fixtures/cask/Casks/with-depends-on-arch.rb
-  - ./test/support/fixtures/cask/Casks/with-depends-on-cask-cyclic-helper.rb
-  - ./test/support/fixtures/cask/Casks/with-depends-on-cask-cyclic.rb
-  - ./test/support/fixtures/cask/Casks/with-depends-on-cask-multiple.rb
-  - ./test/support/fixtures/cask/Casks/with-depends-on-cask.rb
-  - ./test/support/fixtures/cask/Casks/with-depends-on-formula-multiple.rb
-  - ./test/support/fixtures/cask/Casks/with-depends-on-formula.rb
-  - ./test/support/fixtures/cask/Casks/with-depends-on-macos-array.rb
-  - ./test/support/fixtures/cask/Casks/with-depends-on-macos-comparison.rb
-  - ./test/support/fixtures/cask/Casks/with-depends-on-macos-failure.rb
-  - ./test/support/fixtures/cask/Casks/with-depends-on-macos-symbol.rb
-  - ./test/support/fixtures/cask/Casks/with-depends-on-x11-false.rb
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-  - ./test/support/fixtures/cask/Casks/with-embedded-binary.rb
-  - ./test/support/fixtures/cask/Casks/with-generic-artifact.rb
-  - ./test/support/fixtures/cask/Casks/with-installable.rb
-  - ./test/support/fixtures/cask/Casks/with-installer-manual.rb
-  - ./test/support/fixtures/cask/Casks/with-installer-script.rb
-  - ./test/support/fixtures/cask/Casks/with-languages.rb
-  - ./test/support/fixtures/cask/Casks/with-macosx-dir.rb
-  - ./test/support/fixtures/cask/Casks/with-non-executable-binary.rb
-  - ./test/support/fixtures/cask/Casks/with-pkgutil-zap.rb
-  - ./test/support/fixtures/cask/Casks/with-postflight-multi.rb
-  - ./test/support/fixtures/cask/Casks/with-postflight.rb
-  - ./test/support/fixtures/cask/Casks/with-preflight-multi.rb
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-  - ./test/support/fixtures/cask/Casks/with-suite.rb
-  - ./test/support/fixtures/cask/Casks/with-two-apps-correct.rb
-  - ./test/support/fixtures/cask/Casks/with-two-apps-subdir.rb
-  - ./test/support/fixtures/cask/Casks/with-uninstall-delete.rb
-  - ./test/support/fixtures/cask/Casks/with-uninstall-early-script.rb
-  - ./test/support/fixtures/cask/Casks/with-uninstall-kext.rb
-  - ./test/support/fixtures/cask/Casks/with-uninstall-launchctl.rb
-  - ./test/support/fixtures/cask/Casks/with-uninstall-login-item.rb
-  - ./test/support/fixtures/cask/Casks/with-uninstall-multi.rb
-  - ./test/support/fixtures/cask/Casks/with-uninstall-pkgutil.rb
-  - ./test/support/fixtures/cask/Casks/with-uninstall-postflight-multi.rb
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-  - ./test/support/fixtures/cask/Casks/with-uninstall-preflight-multi.rb
-  - ./test/support/fixtures/cask/Casks/with-uninstall-preflight.rb
-  - ./test/support/fixtures/cask/Casks/with-uninstall-quit.rb
-  - ./test/support/fixtures/cask/Casks/with-uninstall-rmdir.rb
-  - ./test/support/fixtures/cask/Casks/with-uninstall-script-app.rb
-  - ./test/support/fixtures/cask/Casks/with-uninstall-script.rb
-  - ./test/support/fixtures/cask/Casks/with-uninstall-signal.rb
-  - ./test/support/fixtures/cask/Casks/with-uninstall-trash.rb
-  - ./test/support/fixtures/cask/Casks/with-zap-delete.rb
-  - ./test/support/fixtures/cask/Casks/with-zap-early-script.rb
-  - ./test/support/fixtures/cask/Casks/with-zap-kext.rb
-  - ./test/support/fixtures/cask/Casks/with-zap-launchctl.rb
-  - ./test/support/fixtures/cask/Casks/with-zap-login-item.rb
-  - ./test/support/fixtures/cask/Casks/with-zap-multi.rb
-  - ./test/support/fixtures/cask/Casks/with-zap-pkgutil.rb
-  - ./test/support/fixtures/cask/Casks/with-zap-quit.rb
-  - ./test/support/fixtures/cask/Casks/with-zap-rmdir.rb
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-  - ./test/support/fixtures/cask/Casks/with-zap-signal.rb
-  - ./test/support/fixtures/cask/Casks/with-zap-trash.rb
-  - ./test/support/fixtures/cask/Casks/with-zap.rb
-  - ./test/support/fixtures/cask/Casks/without-languages.rb
-  - ./test/support/fixtures/failball.rb
-  - ./test/support/fixtures/testball.rb
-  - ./test/support/fixtures/testball_bottle.rb
-  - ./test/support/fixtures/third-party/Casks/pharo.rb
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-  - ./test/support/github_formatter.rb
-  - ./test/support/helper/cask/fake_system_command.rb
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-  - ./test/support/helper/formula.rb
-  - ./test/support/helper/integration_mocks.rb
-  - ./test/support/helper/mktmpdir.rb
-  - ./test/support/helper/output_as_tty.rb
-  - ./test/support/helper/spec/shared_context/homebrew_cask.rb
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-  - ./test/support/helper/spec/shared_examples/formulae_exist.rb
-  - ./test/support/no_seed_progress_formatter.rb
-  - ./test/system_command_result_spec.rb
-  - ./test/system_command_spec.rb
-  - ./test/tab_spec.rb
-  - ./test/tap_spec.rb
-  - ./test/unpack_strategy/bazaar_spec.rb
-  - ./test/unpack_strategy/bzip2_spec.rb
-  - ./test/unpack_strategy/cvs_spec.rb
-  - ./test/unpack_strategy/directory_spec.rb
-  - ./test/unpack_strategy/dmg_spec.rb
-  - ./test/unpack_strategy/git_spec.rb
-  - ./test/unpack_strategy/gzip_spec.rb
-  - ./test/unpack_strategy/jar_spec.rb
-  - ./test/unpack_strategy/lha_spec.rb
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-  - ./test/unpack_strategy/mercurial_spec.rb
-  - ./test/unpack_strategy/p7zip_spec.rb
-  - ./test/unpack_strategy/rar_spec.rb
-  - ./test/unpack_strategy/shared_examples.rb
-  - ./test/unpack_strategy/subversion_spec.rb
-  - ./test/unpack_strategy/tar_spec.rb
-  - ./test/unpack_strategy/uncompressed_spec.rb
-  - ./test/unpack_strategy/xar_spec.rb
-  - ./test/unpack_strategy/xz_spec.rb
-  - ./test/unpack_strategy/zip_spec.rb
-  - ./test/unpack_strategy_spec.rb
-  - ./test/utils/analytics_spec.rb
-  - ./test/utils/bottles/bintray_spec.rb
-  - ./test/utils/bottles/bottles_spec.rb
-  - ./test/utils/bottles/collector_spec.rb
-  - ./test/utils/curl_spec.rb
-  - ./test/utils/fork_spec.rb
-  - ./test/utils/git_spec.rb
-  - ./test/utils/github/actions_spec.rb
-  - ./test/utils/github_spec.rb
-  - ./test/utils/popen_spec.rb
-  - ./test/utils/shell_spec.rb
-  - ./test/utils/spdx_spec.rb
-  - ./test/utils/svn_spec.rb
-  - ./test/utils/tar_spec.rb
-  - ./test/utils/tty_spec.rb
-  - ./test/utils/user_spec.rb
-  - ./test/utils_spec.rb
-  - ./test/version_spec.rb
-  - ./test/x11_requirement_spec.rb
-  - ./unpack_strategy.rb
-  - ./unpack_strategy/air.rb
-  - ./unpack_strategy/bazaar.rb
-  - ./unpack_strategy/bzip2.rb
-  - ./unpack_strategy/cab.rb
-  - ./unpack_strategy/compress.rb
-  - ./unpack_strategy/cvs.rb
-  - ./unpack_strategy/directory.rb
-  - ./unpack_strategy/dmg.rb
-  - ./unpack_strategy/executable.rb
-  - ./unpack_strategy/fossil.rb
-  - ./unpack_strategy/generic_unar.rb
-  - ./unpack_strategy/git.rb
-  - ./unpack_strategy/gzip.rb
-  - ./unpack_strategy/jar.rb
-  - ./unpack_strategy/lha.rb
-  - ./unpack_strategy/lua_rock.rb
-  - ./unpack_strategy/lzip.rb
-  - ./unpack_strategy/lzma.rb
-  - ./unpack_strategy/mercurial.rb
-  - ./unpack_strategy/microsoft_office_xml.rb
-  - ./unpack_strategy/otf.rb
-  - ./unpack_strategy/p7zip.rb
-  - ./unpack_strategy/pax.rb
-  - ./unpack_strategy/pkg.rb
-  - ./unpack_strategy/rar.rb
-  - ./unpack_strategy/self_extracting_executable.rb
-  - ./unpack_strategy/sit.rb
-  - ./unpack_strategy/subversion.rb
-  - ./unpack_strategy/tar.rb
-  - ./unpack_strategy/ttf.rb
-  - ./unpack_strategy/uncompressed.rb
-  - ./unpack_strategy/xar.rb
-  - ./unpack_strategy/xz.rb
-  - ./unpack_strategy/zip.rb
-  - ./upgrade.rb
-  - ./utils.rb
-  - ./utils/analytics.rb
-  - ./utils/curl.rb
-  - ./utils/fork.rb
-  - ./utils/formatter.rb
-  - ./utils/gems.rb
-  - ./utils/git.rb
-  - ./utils/github.rb
-  - ./utils/github/actions.rb
-  - ./utils/popen.rb
-  - ./utils/pypi.rb
-  - ./version.rb
-
-true:
-  - ./build_options.rb
-  - ./cache_store.rb
-  - ./cask_dependent.rb
-  - ./cask/cache.rb
-  - ./cask/denylist.rb
-  - ./cask/macos.rb
-  - ./cask/url.rb
-  - ./checksum.rb
-  - ./cleaner.rb
-  - ./cli/args.rb
-  - ./compat/cli/parser.rb
-  - ./compat/dependencies_helpers.rb
-  - ./compat/extend/nil.rb
-  - ./compat/extend/string.rb
-  - ./compat/formula.rb
-  - ./compat/os/mac.rb
-  - ./compilers.rb
-  - ./config.rb
-  - ./context.rb
-  - ./dependable.rb
-  - ./dependencies_helpers.rb
-  - ./dependency_collector.rb
-  - ./deprecate_disable.rb
-  - ./description_cache_store.rb
-  - ./descriptions.rb
-  - ./env_config.rb
-  - ./extend/cachable.rb
-  - ./extend/os/linux/development_tools.rb
-  - ./extend/os/linux/formula.rb
-  - ./extend/os/linux/resource.rb
-  - ./extend/os/linux/software_spec.rb
-  - ./extend/os/mac/cleaner.rb
-  - ./extend/os/mac/formula.rb
-  - ./extend/os/mac/keg.rb
-  - ./extend/os/mac/resource.rb
-  - ./extend/os/mac/utils/analytics.rb
-  - ./fetch.rb
-  - ./formula_free_port.rb
-  - ./formula_pin.rb
-  - ./formula_support.rb
-  - ./hardware.rb
-  - ./help.rb
-  - ./install.rb
-  - ./install_renamed.rb
-  - ./language/go.rb
-  - ./language/java.rb
-  - ./language/perl.rb
-  - ./lazy_object.rb
-  - ./linkage_cache_store.rb
-  - ./livecheck.rb
-  - ./load_path.rb
-  - ./locale.rb
-  - ./messages.rb
-  - ./metafiles.rb
-  - ./official_taps.rb
-  - ./os.rb
-  - ./os/linux.rb
-  - ./os/linux/glibc.rb
-  - ./os/linux/kernel.rb
-  - ./reinstall.rb
-  - ./rubocops/cask/ast/cask_header.rb
-  - ./rubocops/cask/ast/stanza.rb
-  - ./rubocops/cask/constants/stanza.rb
-  - ./rubocops/cask/desc.rb
-  - ./rubocops/cask/extend/string.rb
-  - ./tap_constants.rb
-  - ./test/support/helper/fixtures.rb
-  - ./test/support/lib/config.rb
-  - ./utils/bottles.rb
-  - ./utils/inreplace.rb
-  - ./utils/link.rb
-  - ./utils/ruby_check_version_script.rb
-  - ./utils/shared_audits.rb
-  - ./utils/shebang.rb
-  - ./utils/shell.rb
-  - ./utils/spdx.rb
-  - ./utils/svn.rb
-  - ./utils/tar.rb
-  - ./utils/tty.rb
-  - ./utils/user.rb
-  - ./version/null.rb
-
-strict:
-  - ./cask.rb
-  - ./cask/artifact.rb
-  - ./cask/dsl/uninstall_postflight.rb
-  - ./compat.rb
-  - ./extend/optparse.rb
-  - ./extend/os/bottles.rb
-  - ./extend/os/caveats.rb
-  - ./extend/os/cleaner.rb
-  - ./extend/os/dependency_collector.rb
-  - ./extend/os/development_tools.rb
-  - ./extend/os/diagnostic.rb
-  - ./extend/os/extend/ENV/shared.rb
-  - ./extend/os/extend/ENV/std.rb
-  - ./extend/os/extend/ENV/super.rb
-  - ./extend/os/formula.rb
-  - ./extend/os/formula_cellar_checks.rb
-  - ./extend/os/formula_support.rb
-  - ./extend/os/hardware.rb
-  - ./extend/os/install.rb
-  - ./extend/os/keg.rb
-  - ./extend/os/keg_relocate.rb
-  - ./extend/os/language/java.rb
-  - ./extend/os/linkage_checker.rb
-  - ./extend/os/linux/cleaner.rb
-  - ./extend/os/linux/extend/pathname.rb
-  - ./extend/os/mac/formula_support.rb
-  - ./extend/os/missing_formula.rb
-  - ./extend/os/pathname.rb
-  - ./extend/os/readall.rb
-  - ./extend/os/requirements/java_requirement.rb
-  - ./extend/os/requirements/osxfuse_requirement.rb
-  - ./extend/os/requirements/x11_requirement.rb
-  - ./extend/os/resource.rb
-  - ./extend/os/search.rb
-  - ./extend/os/software_spec.rb
-  - ./extend/os/system_config.rb
-  - ./extend/os/tap.rb
-  - ./extend/os/utils/analytics.rb
-  - ./language/haskell.rb
-  - ./os/global.rb
-  - ./requirements.rb
-  - ./requirements/osxfuse_requirement.rb
-  - ./rubocops.rb
-  - ./rubocops/rubocop-cask.rb
+false: []
+true: []
+strict: []
diff --git a/Library/Homebrew/style.rb b/Library/Homebrew/style.rb
index 1fbc2420e759d..437df8a7759b1 100644
--- a/Library/Homebrew/style.rb
+++ b/Library/Homebrew/style.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "shellwords"
diff --git a/Library/Homebrew/system_command.rb b/Library/Homebrew/system_command.rb
index 89307f7c33e77..33f3781d7b88e 100644
--- a/Library/Homebrew/system_command.rb
+++ b/Library/Homebrew/system_command.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "open3"
diff --git a/Library/Homebrew/system_config.rb b/Library/Homebrew/system_config.rb
index a377e3bc2473c..5af0d7dbd24ba 100644
--- a/Library/Homebrew/system_config.rb
+++ b/Library/Homebrew/system_config.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "hardware"
diff --git a/Library/Homebrew/tab.rb b/Library/Homebrew/tab.rb
index 8283d08cb0f19..099eb3b1e9647 100644
--- a/Library/Homebrew/tab.rb
+++ b/Library/Homebrew/tab.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "cxxstdlib"
diff --git a/Library/Homebrew/tap.rb b/Library/Homebrew/tap.rb
index 0ccee1b2c26c1..8c6fb892d7e57 100644
--- a/Library/Homebrew/tap.rb
+++ b/Library/Homebrew/tap.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "commands"
diff --git a/Library/Homebrew/tap_constants.rb b/Library/Homebrew/tap_constants.rb
index c375ba8dc8013..1da9c0e5719b5 100644
--- a/Library/Homebrew/tap_constants.rb
+++ b/Library/Homebrew/tap_constants.rb
@@ -1,3 +1,4 @@
+# typed: true
 # frozen_string_literal: true
 
 # match taps' formulae, e.g. someuser/sometap/someformula
diff --git a/Library/Homebrew/test.rb b/Library/Homebrew/test.rb
index 735775fc304f5..82cc34e6926d3 100644
--- a/Library/Homebrew/test.rb
+++ b/Library/Homebrew/test.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 old_trap = trap("INT") { exit! 130 }
diff --git a/Library/Homebrew/test/ENV_spec.rb b/Library/Homebrew/test/ENV_spec.rb
index 9a91960363e29..c0f5cfe76814d 100644
--- a/Library/Homebrew/test/ENV_spec.rb
+++ b/Library/Homebrew/test/ENV_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "cli/args"
diff --git a/Library/Homebrew/test/PATH_spec.rb b/Library/Homebrew/test/PATH_spec.rb
index eda4461f642a0..68357d4b85bb5 100644
--- a/Library/Homebrew/test/PATH_spec.rb
+++ b/Library/Homebrew/test/PATH_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "PATH"
diff --git a/Library/Homebrew/test/bash_spec.rb b/Library/Homebrew/test/bash_spec.rb
index b3b552249e861..3a7827c85324a 100644
--- a/Library/Homebrew/test/bash_spec.rb
+++ b/Library/Homebrew/test/bash_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "open3"
diff --git a/Library/Homebrew/test/bintray_spec.rb b/Library/Homebrew/test/bintray_spec.rb
index 2a61f8d476ab4..6163265a85a1d 100644
--- a/Library/Homebrew/test/bintray_spec.rb
+++ b/Library/Homebrew/test/bintray_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "bintray"
diff --git a/Library/Homebrew/test/bottle_filename_spec.rb b/Library/Homebrew/test/bottle_filename_spec.rb
index f7db07f96ef76..7d95739ea9e20 100644
--- a/Library/Homebrew/test/bottle_filename_spec.rb
+++ b/Library/Homebrew/test/bottle_filename_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "formula"
diff --git a/Library/Homebrew/test/build_environment_spec.rb b/Library/Homebrew/test/build_environment_spec.rb
index e5bc95da361fa..79f8a57e85e11 100644
--- a/Library/Homebrew/test/build_environment_spec.rb
+++ b/Library/Homebrew/test/build_environment_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "build_environment"
diff --git a/Library/Homebrew/test/build_options_spec.rb b/Library/Homebrew/test/build_options_spec.rb
index 8bfede1f2b5f3..f7693171f81a9 100644
--- a/Library/Homebrew/test/build_options_spec.rb
+++ b/Library/Homebrew/test/build_options_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "build_options"
diff --git a/Library/Homebrew/test/cache_store_spec.rb b/Library/Homebrew/test/cache_store_spec.rb
index 0365b3423becd..2b122fed4c319 100644
--- a/Library/Homebrew/test/cache_store_spec.rb
+++ b/Library/Homebrew/test/cache_store_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "cache_store"
diff --git a/Library/Homebrew/test/cask/artifact/alt_target_spec.rb b/Library/Homebrew/test/cask/artifact/alt_target_spec.rb
index ed0e9d459136c..a31554950ac4e 100644
--- a/Library/Homebrew/test/cask/artifact/alt_target_spec.rb
+++ b/Library/Homebrew/test/cask/artifact/alt_target_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 describe Cask::Artifact::App, :cask do
diff --git a/Library/Homebrew/test/cask/artifact/app_spec.rb b/Library/Homebrew/test/cask/artifact/app_spec.rb
index add9b9dc56251..4cb1ad17fcd6e 100644
--- a/Library/Homebrew/test/cask/artifact/app_spec.rb
+++ b/Library/Homebrew/test/cask/artifact/app_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 describe Cask::Artifact::App, :cask do
diff --git a/Library/Homebrew/test/cask/artifact/binary_spec.rb b/Library/Homebrew/test/cask/artifact/binary_spec.rb
index 230046770c24e..149eea835f2cf 100644
--- a/Library/Homebrew/test/cask/artifact/binary_spec.rb
+++ b/Library/Homebrew/test/cask/artifact/binary_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 describe Cask::Artifact::Binary, :cask do
diff --git a/Library/Homebrew/test/cask/artifact/generic_artifact_spec.rb b/Library/Homebrew/test/cask/artifact/generic_artifact_spec.rb
index d783a48b4c7a3..67420059c3079 100644
--- a/Library/Homebrew/test/cask/artifact/generic_artifact_spec.rb
+++ b/Library/Homebrew/test/cask/artifact/generic_artifact_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 describe Cask::Artifact::Artifact, :cask do
diff --git a/Library/Homebrew/test/cask/artifact/installer_spec.rb b/Library/Homebrew/test/cask/artifact/installer_spec.rb
index 6bff500bbcf2e..1feb893391ec1 100644
--- a/Library/Homebrew/test/cask/artifact/installer_spec.rb
+++ b/Library/Homebrew/test/cask/artifact/installer_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 describe Cask::Artifact::Installer, :cask do
diff --git a/Library/Homebrew/test/cask/artifact/manpage_spec.rb b/Library/Homebrew/test/cask/artifact/manpage_spec.rb
index e94e9a8ce10ca..5cfacd2b2ec45 100644
--- a/Library/Homebrew/test/cask/artifact/manpage_spec.rb
+++ b/Library/Homebrew/test/cask/artifact/manpage_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 describe Cask::Artifact::Manpage, :cask do
diff --git a/Library/Homebrew/test/cask/artifact/pkg_spec.rb b/Library/Homebrew/test/cask/artifact/pkg_spec.rb
index 19087acd9479a..49ae668d9cbaf 100644
--- a/Library/Homebrew/test/cask/artifact/pkg_spec.rb
+++ b/Library/Homebrew/test/cask/artifact/pkg_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 describe Cask::Artifact::Pkg, :cask do
diff --git a/Library/Homebrew/test/cask/artifact/postflight_block_spec.rb b/Library/Homebrew/test/cask/artifact/postflight_block_spec.rb
index 52cd1bf0ca2e2..21957b37dcf83 100644
--- a/Library/Homebrew/test/cask/artifact/postflight_block_spec.rb
+++ b/Library/Homebrew/test/cask/artifact/postflight_block_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 describe Cask::Artifact::PostflightBlock, :cask do
diff --git a/Library/Homebrew/test/cask/artifact/preflight_block_spec.rb b/Library/Homebrew/test/cask/artifact/preflight_block_spec.rb
index 7546690b0a3ce..543ff90b4d443 100644
--- a/Library/Homebrew/test/cask/artifact/preflight_block_spec.rb
+++ b/Library/Homebrew/test/cask/artifact/preflight_block_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 describe Cask::Artifact::PreflightBlock, :cask do
diff --git a/Library/Homebrew/test/cask/artifact/shared_examples/uninstall_zap.rb b/Library/Homebrew/test/cask/artifact/shared_examples/uninstall_zap.rb
index 49d86dae22e70..fc91356cfbda2 100644
--- a/Library/Homebrew/test/cask/artifact/shared_examples/uninstall_zap.rb
+++ b/Library/Homebrew/test/cask/artifact/shared_examples/uninstall_zap.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "benchmark"
diff --git a/Library/Homebrew/test/cask/artifact/suite_spec.rb b/Library/Homebrew/test/cask/artifact/suite_spec.rb
index 7cf983f0536ef..61144b3679dac 100644
--- a/Library/Homebrew/test/cask/artifact/suite_spec.rb
+++ b/Library/Homebrew/test/cask/artifact/suite_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 describe Cask::Artifact::Suite, :cask do
diff --git a/Library/Homebrew/test/cask/artifact/two_apps_correct_spec.rb b/Library/Homebrew/test/cask/artifact/two_apps_correct_spec.rb
index 1f630838553b8..3a5371e3b2a59 100644
--- a/Library/Homebrew/test/cask/artifact/two_apps_correct_spec.rb
+++ b/Library/Homebrew/test/cask/artifact/two_apps_correct_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 describe Cask::Artifact::App, :cask do
diff --git a/Library/Homebrew/test/cask/artifact/uninstall_no_zap_spec.rb b/Library/Homebrew/test/cask/artifact/uninstall_no_zap_spec.rb
index ae2cce3f913f6..31b14aa7f4903 100644
--- a/Library/Homebrew/test/cask/artifact/uninstall_no_zap_spec.rb
+++ b/Library/Homebrew/test/cask/artifact/uninstall_no_zap_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 describe Cask::Artifact::Zap, :cask do
diff --git a/Library/Homebrew/test/cask/artifact/uninstall_spec.rb b/Library/Homebrew/test/cask/artifact/uninstall_spec.rb
index cd50589dc6b8c..7ce9297f4c45a 100644
--- a/Library/Homebrew/test/cask/artifact/uninstall_spec.rb
+++ b/Library/Homebrew/test/cask/artifact/uninstall_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require_relative "shared_examples/uninstall_zap"
diff --git a/Library/Homebrew/test/cask/artifact/zap_spec.rb b/Library/Homebrew/test/cask/artifact/zap_spec.rb
index 0f1e7da7daba4..1013d9fd44a8c 100644
--- a/Library/Homebrew/test/cask/artifact/zap_spec.rb
+++ b/Library/Homebrew/test/cask/artifact/zap_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require_relative "shared_examples/uninstall_zap"
diff --git a/Library/Homebrew/test/cask/audit_spec.rb b/Library/Homebrew/test/cask/audit_spec.rb
index 6b0f9f4a38fde..497780f47059f 100644
--- a/Library/Homebrew/test/cask/audit_spec.rb
+++ b/Library/Homebrew/test/cask/audit_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "cask/audit"
diff --git a/Library/Homebrew/test/cask/cask_loader/from__path_loader_spec.rb b/Library/Homebrew/test/cask/cask_loader/from__path_loader_spec.rb
index 86fa8061e2598..297a2ab32cf35 100644
--- a/Library/Homebrew/test/cask/cask_loader/from__path_loader_spec.rb
+++ b/Library/Homebrew/test/cask/cask_loader/from__path_loader_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 describe Cask::CaskLoader::FromPathLoader do
diff --git a/Library/Homebrew/test/cask/cask_loader/from_content_loader_spec.rb b/Library/Homebrew/test/cask/cask_loader/from_content_loader_spec.rb
index 41836b9a1c115..c956d089e0fb0 100644
--- a/Library/Homebrew/test/cask/cask_loader/from_content_loader_spec.rb
+++ b/Library/Homebrew/test/cask/cask_loader/from_content_loader_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 describe Cask::CaskLoader::FromContentLoader do
diff --git a/Library/Homebrew/test/cask/cask_loader/from_uri_loader_spec.rb b/Library/Homebrew/test/cask/cask_loader/from_uri_loader_spec.rb
index cb8e021523d80..c1708d69467f2 100644
--- a/Library/Homebrew/test/cask/cask_loader/from_uri_loader_spec.rb
+++ b/Library/Homebrew/test/cask/cask_loader/from_uri_loader_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 describe Cask::CaskLoader::FromURILoader do
diff --git a/Library/Homebrew/test/cask/cask_spec.rb b/Library/Homebrew/test/cask/cask_spec.rb
index b0ca9658f543e..6badf576a7d39 100644
--- a/Library/Homebrew/test/cask/cask_spec.rb
+++ b/Library/Homebrew/test/cask/cask_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 describe Cask::Cask, :cask do
diff --git a/Library/Homebrew/test/cask/cmd/audit_spec.rb b/Library/Homebrew/test/cask/cmd/audit_spec.rb
index 18f2fc162c7f6..2a1bd90fc3b53 100644
--- a/Library/Homebrew/test/cask/cmd/audit_spec.rb
+++ b/Library/Homebrew/test/cask/cmd/audit_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require_relative "shared_examples/invalid_option"
diff --git a/Library/Homebrew/test/cask/cmd/cache_spec.rb b/Library/Homebrew/test/cask/cmd/cache_spec.rb
index 229edcc59895a..5cde00d829e80 100644
--- a/Library/Homebrew/test/cask/cmd/cache_spec.rb
+++ b/Library/Homebrew/test/cask/cmd/cache_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require_relative "shared_examples/requires_cask_token"
diff --git a/Library/Homebrew/test/cask/cmd/cat_spec.rb b/Library/Homebrew/test/cask/cmd/cat_spec.rb
index 645e666ca81f7..6fab5cc170f9d 100644
--- a/Library/Homebrew/test/cask/cmd/cat_spec.rb
+++ b/Library/Homebrew/test/cask/cmd/cat_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require_relative "shared_examples/requires_cask_token"
diff --git a/Library/Homebrew/test/cask/cmd/create_spec.rb b/Library/Homebrew/test/cask/cmd/create_spec.rb
index d0f0334632ebf..d8fa5cb4253d0 100644
--- a/Library/Homebrew/test/cask/cmd/create_spec.rb
+++ b/Library/Homebrew/test/cask/cmd/create_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require_relative "shared_examples/requires_cask_token"
diff --git a/Library/Homebrew/test/cask/cmd/doctor_spec.rb b/Library/Homebrew/test/cask/cmd/doctor_spec.rb
index 5351f93e54fe3..1f913b67017e6 100644
--- a/Library/Homebrew/test/cask/cmd/doctor_spec.rb
+++ b/Library/Homebrew/test/cask/cmd/doctor_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require_relative "shared_examples/invalid_option"
diff --git a/Library/Homebrew/test/cask/cmd/edit_spec.rb b/Library/Homebrew/test/cask/cmd/edit_spec.rb
index e6a7d8fd14a3c..18d390ee740e5 100644
--- a/Library/Homebrew/test/cask/cmd/edit_spec.rb
+++ b/Library/Homebrew/test/cask/cmd/edit_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require_relative "shared_examples/requires_cask_token"
diff --git a/Library/Homebrew/test/cask/cmd/fetch_spec.rb b/Library/Homebrew/test/cask/cmd/fetch_spec.rb
index 35ecf6331842b..bc68dc9ec03bf 100644
--- a/Library/Homebrew/test/cask/cmd/fetch_spec.rb
+++ b/Library/Homebrew/test/cask/cmd/fetch_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require_relative "shared_examples/requires_cask_token"
diff --git a/Library/Homebrew/test/cask/cmd/home_spec.rb b/Library/Homebrew/test/cask/cmd/home_spec.rb
index f94229f27920c..5774a6d59cf1c 100644
--- a/Library/Homebrew/test/cask/cmd/home_spec.rb
+++ b/Library/Homebrew/test/cask/cmd/home_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require_relative "shared_examples/invalid_option"
diff --git a/Library/Homebrew/test/cask/cmd/info_spec.rb b/Library/Homebrew/test/cask/cmd/info_spec.rb
index 3828d4d95e1f7..3022fc323f896 100644
--- a/Library/Homebrew/test/cask/cmd/info_spec.rb
+++ b/Library/Homebrew/test/cask/cmd/info_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require_relative "shared_examples/requires_cask_token"
diff --git a/Library/Homebrew/test/cask/cmd/install_spec.rb b/Library/Homebrew/test/cask/cmd/install_spec.rb
index 585d7ac84e30a..7c051d9d1fd98 100644
--- a/Library/Homebrew/test/cask/cmd/install_spec.rb
+++ b/Library/Homebrew/test/cask/cmd/install_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require_relative "shared_examples/requires_cask_token"
diff --git a/Library/Homebrew/test/cask/cmd/internal_stanza_spec.rb b/Library/Homebrew/test/cask/cmd/internal_stanza_spec.rb
index cffb1f780600c..9fe4fbd77b019 100644
--- a/Library/Homebrew/test/cask/cmd/internal_stanza_spec.rb
+++ b/Library/Homebrew/test/cask/cmd/internal_stanza_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 describe Cask::Cmd::InternalStanza, :cask do
diff --git a/Library/Homebrew/test/cask/cmd/list_spec.rb b/Library/Homebrew/test/cask/cmd/list_spec.rb
index 5ae6ed8f10156..1dfa416953b11 100644
--- a/Library/Homebrew/test/cask/cmd/list_spec.rb
+++ b/Library/Homebrew/test/cask/cmd/list_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require_relative "shared_examples/invalid_option"
diff --git a/Library/Homebrew/test/cask/cmd/outdated_spec.rb b/Library/Homebrew/test/cask/cmd/outdated_spec.rb
index 2ae1624b35b34..6850fd749f6f2 100644
--- a/Library/Homebrew/test/cask/cmd/outdated_spec.rb
+++ b/Library/Homebrew/test/cask/cmd/outdated_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require_relative "shared_examples/invalid_option"
diff --git a/Library/Homebrew/test/cask/cmd/reinstall_spec.rb b/Library/Homebrew/test/cask/cmd/reinstall_spec.rb
index ccd7317e61fd5..8b93c92fc3918 100644
--- a/Library/Homebrew/test/cask/cmd/reinstall_spec.rb
+++ b/Library/Homebrew/test/cask/cmd/reinstall_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require_relative "shared_examples/invalid_option"
diff --git a/Library/Homebrew/test/cask/cmd/shared_examples/invalid_option.rb b/Library/Homebrew/test/cask/cmd/shared_examples/invalid_option.rb
index 467a1be08d891..f344ba7703707 100644
--- a/Library/Homebrew/test/cask/cmd/shared_examples/invalid_option.rb
+++ b/Library/Homebrew/test/cask/cmd/shared_examples/invalid_option.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 shared_examples "a command that handles invalid options" do
diff --git a/Library/Homebrew/test/cask/cmd/shared_examples/requires_cask_token.rb b/Library/Homebrew/test/cask/cmd/shared_examples/requires_cask_token.rb
index 0e68acc85aee8..a3faaff5896f1 100644
--- a/Library/Homebrew/test/cask/cmd/shared_examples/requires_cask_token.rb
+++ b/Library/Homebrew/test/cask/cmd/shared_examples/requires_cask_token.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 shared_examples "a command that requires a Cask token" do
diff --git a/Library/Homebrew/test/cask/cmd/style_spec.rb b/Library/Homebrew/test/cask/cmd/style_spec.rb
index 32ce90aa2b2d8..7862cfd51934a 100644
--- a/Library/Homebrew/test/cask/cmd/style_spec.rb
+++ b/Library/Homebrew/test/cask/cmd/style_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "open3"
diff --git a/Library/Homebrew/test/cask/cmd/uninstall_spec.rb b/Library/Homebrew/test/cask/cmd/uninstall_spec.rb
index f5c330615a0d3..8158d1c1143d2 100644
--- a/Library/Homebrew/test/cask/cmd/uninstall_spec.rb
+++ b/Library/Homebrew/test/cask/cmd/uninstall_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require_relative "shared_examples/requires_cask_token"
diff --git a/Library/Homebrew/test/cask/cmd/upgrade_spec.rb b/Library/Homebrew/test/cask/cmd/upgrade_spec.rb
index 3a9137657c9a8..e930e00b7ac91 100644
--- a/Library/Homebrew/test/cask/cmd/upgrade_spec.rb
+++ b/Library/Homebrew/test/cask/cmd/upgrade_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require_relative "shared_examples/invalid_option"
diff --git a/Library/Homebrew/test/cask/cmd/zap_spec.rb b/Library/Homebrew/test/cask/cmd/zap_spec.rb
index 66d90c58a3ad3..f5549f6f9e722 100644
--- a/Library/Homebrew/test/cask/cmd/zap_spec.rb
+++ b/Library/Homebrew/test/cask/cmd/zap_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require_relative "shared_examples/requires_cask_token"
diff --git a/Library/Homebrew/test/cask/cmd_spec.rb b/Library/Homebrew/test/cask/cmd_spec.rb
index e715d056715da..d034437fcdad8 100644
--- a/Library/Homebrew/test/cask/cmd_spec.rb
+++ b/Library/Homebrew/test/cask/cmd_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 describe Cask::Cmd, :cask do
diff --git a/Library/Homebrew/test/cask/config_spec.rb b/Library/Homebrew/test/cask/config_spec.rb
index 412d5f5b8557b..86cd911675430 100644
--- a/Library/Homebrew/test/cask/config_spec.rb
+++ b/Library/Homebrew/test/cask/config_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 describe Cask::Config, :cask do
diff --git a/Library/Homebrew/test/cask/conflicts_with_spec.rb b/Library/Homebrew/test/cask/conflicts_with_spec.rb
index 059685af36ad6..71733db4b2cc0 100644
--- a/Library/Homebrew/test/cask/conflicts_with_spec.rb
+++ b/Library/Homebrew/test/cask/conflicts_with_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 describe "conflicts_with", :cask do
diff --git a/Library/Homebrew/test/cask/denylist_spec.rb b/Library/Homebrew/test/cask/denylist_spec.rb
index 8c34b5988ca89..65fc182c15dcb 100644
--- a/Library/Homebrew/test/cask/denylist_spec.rb
+++ b/Library/Homebrew/test/cask/denylist_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "cask/denylist"
diff --git a/Library/Homebrew/test/cask/depends_on_spec.rb b/Library/Homebrew/test/cask/depends_on_spec.rb
index d9424987dabaf..e00f472d27a15 100644
--- a/Library/Homebrew/test/cask/depends_on_spec.rb
+++ b/Library/Homebrew/test/cask/depends_on_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 # TODO: this test should be named after the corresponding class, once
diff --git a/Library/Homebrew/test/cask/dsl/appcast_spec.rb b/Library/Homebrew/test/cask/dsl/appcast_spec.rb
index a3b1cf671c58e..ac7c1f66437a8 100644
--- a/Library/Homebrew/test/cask/dsl/appcast_spec.rb
+++ b/Library/Homebrew/test/cask/dsl/appcast_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "cmd/cask"
diff --git a/Library/Homebrew/test/cask/dsl/caveats_spec.rb b/Library/Homebrew/test/cask/dsl/caveats_spec.rb
index 3b14811f7c716..a9b3919a42fd2 100644
--- a/Library/Homebrew/test/cask/dsl/caveats_spec.rb
+++ b/Library/Homebrew/test/cask/dsl/caveats_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "test/cask/dsl/shared_examples/base"
diff --git a/Library/Homebrew/test/cask/dsl/postflight_spec.rb b/Library/Homebrew/test/cask/dsl/postflight_spec.rb
index edb411f312c34..259921fcebc31 100644
--- a/Library/Homebrew/test/cask/dsl/postflight_spec.rb
+++ b/Library/Homebrew/test/cask/dsl/postflight_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "test/cask/dsl/shared_examples/base"
diff --git a/Library/Homebrew/test/cask/dsl/preflight_spec.rb b/Library/Homebrew/test/cask/dsl/preflight_spec.rb
index caf977f526201..93f1a60174385 100644
--- a/Library/Homebrew/test/cask/dsl/preflight_spec.rb
+++ b/Library/Homebrew/test/cask/dsl/preflight_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "test/cask/dsl/shared_examples/base"
diff --git a/Library/Homebrew/test/cask/dsl/shared_examples/base.rb b/Library/Homebrew/test/cask/dsl/shared_examples/base.rb
index c46715d5163ee..f97d2c29db436 100644
--- a/Library/Homebrew/test/cask/dsl/shared_examples/base.rb
+++ b/Library/Homebrew/test/cask/dsl/shared_examples/base.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "cask/dsl/base"
diff --git a/Library/Homebrew/test/cask/dsl/shared_examples/staged.rb b/Library/Homebrew/test/cask/dsl/shared_examples/staged.rb
index a4d29f84cf4b0..b6490e825d7d5 100644
--- a/Library/Homebrew/test/cask/dsl/shared_examples/staged.rb
+++ b/Library/Homebrew/test/cask/dsl/shared_examples/staged.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "cask/staged"
diff --git a/Library/Homebrew/test/cask/dsl/uninstall_postflight_spec.rb b/Library/Homebrew/test/cask/dsl/uninstall_postflight_spec.rb
index 77129641a1a54..48c7653d5fdf5 100644
--- a/Library/Homebrew/test/cask/dsl/uninstall_postflight_spec.rb
+++ b/Library/Homebrew/test/cask/dsl/uninstall_postflight_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "test/cask/dsl/shared_examples/base"
diff --git a/Library/Homebrew/test/cask/dsl/uninstall_preflight_spec.rb b/Library/Homebrew/test/cask/dsl/uninstall_preflight_spec.rb
index fa744f248aed7..635c35c030bb0 100644
--- a/Library/Homebrew/test/cask/dsl/uninstall_preflight_spec.rb
+++ b/Library/Homebrew/test/cask/dsl/uninstall_preflight_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "test/cask/dsl/shared_examples/base"
diff --git a/Library/Homebrew/test/cask/dsl/version_spec.rb b/Library/Homebrew/test/cask/dsl/version_spec.rb
index cd1683aedc902..12f5db7dad04f 100644
--- a/Library/Homebrew/test/cask/dsl/version_spec.rb
+++ b/Library/Homebrew/test/cask/dsl/version_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 describe Cask::DSL::Version, :cask do
diff --git a/Library/Homebrew/test/cask/dsl_spec.rb b/Library/Homebrew/test/cask/dsl_spec.rb
index 0ef5993221e3c..43f7dea99252f 100644
--- a/Library/Homebrew/test/cask/dsl_spec.rb
+++ b/Library/Homebrew/test/cask/dsl_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 describe Cask::DSL, :cask do
diff --git a/Library/Homebrew/test/cask/installer_spec.rb b/Library/Homebrew/test/cask/installer_spec.rb
index a7b5045bd43bb..b15bf205cdcd0 100644
--- a/Library/Homebrew/test/cask/installer_spec.rb
+++ b/Library/Homebrew/test/cask/installer_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 describe Cask::Installer, :cask do
diff --git a/Library/Homebrew/test/cask/macos_spec.rb b/Library/Homebrew/test/cask/macos_spec.rb
index 2635e67f173aa..92f5c332ef3d5 100644
--- a/Library/Homebrew/test/cask/macos_spec.rb
+++ b/Library/Homebrew/test/cask/macos_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 describe MacOS, :cask do
diff --git a/Library/Homebrew/test/cask/pkg_spec.rb b/Library/Homebrew/test/cask/pkg_spec.rb
index 486ab8f822715..e98face38aae1 100644
--- a/Library/Homebrew/test/cask/pkg_spec.rb
+++ b/Library/Homebrew/test/cask/pkg_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 describe Cask::Pkg, :cask do
diff --git a/Library/Homebrew/test/cask/quarantine_spec.rb b/Library/Homebrew/test/cask/quarantine_spec.rb
index 33c8f7a975f73..779c995eb3a59 100644
--- a/Library/Homebrew/test/cask/quarantine_spec.rb
+++ b/Library/Homebrew/test/cask/quarantine_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "cask/cmd/audit"
diff --git a/Library/Homebrew/test/cask/verify_spec.rb b/Library/Homebrew/test/cask/verify_spec.rb
index 46ce8ad5deba6..8acc50baefb50 100644
--- a/Library/Homebrew/test/cask/verify_spec.rb
+++ b/Library/Homebrew/test/cask/verify_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 module Cask
diff --git a/Library/Homebrew/test/cask_dependent_spec.rb b/Library/Homebrew/test/cask_dependent_spec.rb
index 313a67a61b2cf..9f094157ee2e2 100644
--- a/Library/Homebrew/test/cask_dependent_spec.rb
+++ b/Library/Homebrew/test/cask_dependent_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "cask/cask_loader"
diff --git a/Library/Homebrew/test/caveats_spec.rb b/Library/Homebrew/test/caveats_spec.rb
index b0ed28814d0b8..6423eefed4c12 100644
--- a/Library/Homebrew/test/caveats_spec.rb
+++ b/Library/Homebrew/test/caveats_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "formula"
diff --git a/Library/Homebrew/test/checksum_spec.rb b/Library/Homebrew/test/checksum_spec.rb
index 7dc8945810fc4..7904eca061a16 100644
--- a/Library/Homebrew/test/checksum_spec.rb
+++ b/Library/Homebrew/test/checksum_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "checksum"
diff --git a/Library/Homebrew/test/checksum_verification_spec.rb b/Library/Homebrew/test/checksum_verification_spec.rb
index 7f3109ca403e6..b1a7a7f624d70 100644
--- a/Library/Homebrew/test/checksum_verification_spec.rb
+++ b/Library/Homebrew/test/checksum_verification_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "formula"
diff --git a/Library/Homebrew/test/cleaner_spec.rb b/Library/Homebrew/test/cleaner_spec.rb
index bba23b7b8174a..f3ec58552e509 100644
--- a/Library/Homebrew/test/cleaner_spec.rb
+++ b/Library/Homebrew/test/cleaner_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "cleaner"
diff --git a/Library/Homebrew/test/cleanup_spec.rb b/Library/Homebrew/test/cleanup_spec.rb
index cb15b9cb1bb4d..f8c363ad44c2f 100644
--- a/Library/Homebrew/test/cleanup_spec.rb
+++ b/Library/Homebrew/test/cleanup_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "test/support/fixtures/testball"
diff --git a/Library/Homebrew/test/cli/named_args_spec.rb b/Library/Homebrew/test/cli/named_args_spec.rb
index b70a67acc36eb..29af7187e1d46 100644
--- a/Library/Homebrew/test/cli/named_args_spec.rb
+++ b/Library/Homebrew/test/cli/named_args_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "cli/named_args"
diff --git a/Library/Homebrew/test/cli/parser_spec.rb b/Library/Homebrew/test/cli/parser_spec.rb
index 0b6ce6e42700f..d678b332ccfd2 100644
--- a/Library/Homebrew/test/cli/parser_spec.rb
+++ b/Library/Homebrew/test/cli/parser_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require_relative "../../cli/parser"
diff --git a/Library/Homebrew/test/cmd/--cache_spec.rb b/Library/Homebrew/test/cmd/--cache_spec.rb
index ea8c263fc75da..6f8acbb94576f 100644
--- a/Library/Homebrew/test/cmd/--cache_spec.rb
+++ b/Library/Homebrew/test/cmd/--cache_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "cmd/shared_examples/args_parse"
diff --git a/Library/Homebrew/test/cmd/--caskroom_spec.rb b/Library/Homebrew/test/cmd/--caskroom_spec.rb
index 058573ac02a85..769d95544f21b 100644
--- a/Library/Homebrew/test/cmd/--caskroom_spec.rb
+++ b/Library/Homebrew/test/cmd/--caskroom_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 describe "brew --caskroom", :integration_test do
diff --git a/Library/Homebrew/test/cmd/--cellar_spec.rb b/Library/Homebrew/test/cmd/--cellar_spec.rb
index 5919a2f6a5a39..1bda2bd9f9bd6 100644
--- a/Library/Homebrew/test/cmd/--cellar_spec.rb
+++ b/Library/Homebrew/test/cmd/--cellar_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "cmd/shared_examples/args_parse"
diff --git a/Library/Homebrew/test/cmd/--env_spec.rb b/Library/Homebrew/test/cmd/--env_spec.rb
index 2f94f13100ee6..d7cd44dbc2ce4 100644
--- a/Library/Homebrew/test/cmd/--env_spec.rb
+++ b/Library/Homebrew/test/cmd/--env_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "cmd/shared_examples/args_parse"
diff --git a/Library/Homebrew/test/cmd/--prefix_spec.rb b/Library/Homebrew/test/cmd/--prefix_spec.rb
index 51c34fe222d02..527581f5f5945 100644
--- a/Library/Homebrew/test/cmd/--prefix_spec.rb
+++ b/Library/Homebrew/test/cmd/--prefix_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "cmd/shared_examples/args_parse"
diff --git a/Library/Homebrew/test/cmd/--repository_spec.rb b/Library/Homebrew/test/cmd/--repository_spec.rb
index a6d351d9032f9..cb2f7502470d8 100644
--- a/Library/Homebrew/test/cmd/--repository_spec.rb
+++ b/Library/Homebrew/test/cmd/--repository_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "cmd/shared_examples/args_parse"
diff --git a/Library/Homebrew/test/cmd/--version_spec.rb b/Library/Homebrew/test/cmd/--version_spec.rb
index 3650b7d44bf4f..7d9d71cd8bb78 100644
--- a/Library/Homebrew/test/cmd/--version_spec.rb
+++ b/Library/Homebrew/test/cmd/--version_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "cmd/shared_examples/args_parse"
diff --git a/Library/Homebrew/test/cmd/analytics_spec.rb b/Library/Homebrew/test/cmd/analytics_spec.rb
index 4c15cbe966113..519f366c4292d 100644
--- a/Library/Homebrew/test/cmd/analytics_spec.rb
+++ b/Library/Homebrew/test/cmd/analytics_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "cmd/shared_examples/args_parse"
diff --git a/Library/Homebrew/test/cmd/bundle_spec.rb b/Library/Homebrew/test/cmd/bundle_spec.rb
index 63bb8f509fbe1..7021ea70eb58e 100644
--- a/Library/Homebrew/test/cmd/bundle_spec.rb
+++ b/Library/Homebrew/test/cmd/bundle_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 describe "brew bundle", :integration_test do
diff --git a/Library/Homebrew/test/cmd/cask_spec.rb b/Library/Homebrew/test/cmd/cask_spec.rb
index 675ac09e93ec8..666854d9721d0 100644
--- a/Library/Homebrew/test/cmd/cask_spec.rb
+++ b/Library/Homebrew/test/cmd/cask_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 describe "brew cask", :integration_test, :needs_macos, :needs_network do
diff --git a/Library/Homebrew/test/cmd/cleanup_spec.rb b/Library/Homebrew/test/cmd/cleanup_spec.rb
index 54d66f74ec182..437f8a62779d2 100644
--- a/Library/Homebrew/test/cmd/cleanup_spec.rb
+++ b/Library/Homebrew/test/cmd/cleanup_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "cmd/shared_examples/args_parse"
diff --git a/Library/Homebrew/test/cmd/commands_spec.rb b/Library/Homebrew/test/cmd/commands_spec.rb
index 8dde1ed83e951..fb049969e7031 100644
--- a/Library/Homebrew/test/cmd/commands_spec.rb
+++ b/Library/Homebrew/test/cmd/commands_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "cmd/commands"
diff --git a/Library/Homebrew/test/cmd/config_spec.rb b/Library/Homebrew/test/cmd/config_spec.rb
index 2c454e14d5be1..df5bed7910581 100644
--- a/Library/Homebrew/test/cmd/config_spec.rb
+++ b/Library/Homebrew/test/cmd/config_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "cmd/shared_examples/args_parse"
diff --git a/Library/Homebrew/test/cmd/custom-external-command_spec.rb b/Library/Homebrew/test/cmd/custom-external-command_spec.rb
index b6aedd83ea06b..84e735de632e9 100644
--- a/Library/Homebrew/test/cmd/custom-external-command_spec.rb
+++ b/Library/Homebrew/test/cmd/custom-external-command_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 describe "brew custom-external-command", :integration_test do
diff --git a/Library/Homebrew/test/cmd/deps_spec.rb b/Library/Homebrew/test/cmd/deps_spec.rb
index f63454712aad4..540b82c51d747 100644
--- a/Library/Homebrew/test/cmd/deps_spec.rb
+++ b/Library/Homebrew/test/cmd/deps_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "cmd/shared_examples/args_parse"
diff --git a/Library/Homebrew/test/cmd/desc_spec.rb b/Library/Homebrew/test/cmd/desc_spec.rb
index 35648422623d1..c9e7898dc50cb 100644
--- a/Library/Homebrew/test/cmd/desc_spec.rb
+++ b/Library/Homebrew/test/cmd/desc_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "cmd/shared_examples/args_parse"
diff --git a/Library/Homebrew/test/cmd/doctor_spec.rb b/Library/Homebrew/test/cmd/doctor_spec.rb
index eea6caab79cd7..3d0bb60203ecf 100644
--- a/Library/Homebrew/test/cmd/doctor_spec.rb
+++ b/Library/Homebrew/test/cmd/doctor_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "cmd/shared_examples/args_parse"
diff --git a/Library/Homebrew/test/cmd/fetch_spec.rb b/Library/Homebrew/test/cmd/fetch_spec.rb
index a49cbfd8ee0ef..237a769b3def9 100644
--- a/Library/Homebrew/test/cmd/fetch_spec.rb
+++ b/Library/Homebrew/test/cmd/fetch_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "cmd/shared_examples/args_parse"
diff --git a/Library/Homebrew/test/cmd/gist-logs_spec.rb b/Library/Homebrew/test/cmd/gist-logs_spec.rb
index 490373c7d234e..10a9d0d30a1f9 100644
--- a/Library/Homebrew/test/cmd/gist-logs_spec.rb
+++ b/Library/Homebrew/test/cmd/gist-logs_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "cmd/shared_examples/args_parse"
diff --git a/Library/Homebrew/test/cmd/help_spec.rb b/Library/Homebrew/test/cmd/help_spec.rb
index b94d8a7ef1070..4d0cf035d1d55 100644
--- a/Library/Homebrew/test/cmd/help_spec.rb
+++ b/Library/Homebrew/test/cmd/help_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 describe "brew", :integration_test do
diff --git a/Library/Homebrew/test/cmd/home_spec.rb b/Library/Homebrew/test/cmd/home_spec.rb
index 7fce3ed4bfeef..f0bdd98109807 100644
--- a/Library/Homebrew/test/cmd/home_spec.rb
+++ b/Library/Homebrew/test/cmd/home_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "cmd/shared_examples/args_parse"
diff --git a/Library/Homebrew/test/cmd/info_spec.rb b/Library/Homebrew/test/cmd/info_spec.rb
index 668548fb7fcf1..d2276fdb714b3 100644
--- a/Library/Homebrew/test/cmd/info_spec.rb
+++ b/Library/Homebrew/test/cmd/info_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "cmd/info"
diff --git a/Library/Homebrew/test/cmd/install_spec.rb b/Library/Homebrew/test/cmd/install_spec.rb
index 70ba941c785fb..ef100add419bf 100644
--- a/Library/Homebrew/test/cmd/install_spec.rb
+++ b/Library/Homebrew/test/cmd/install_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "cmd/shared_examples/args_parse"
diff --git a/Library/Homebrew/test/cmd/leaves_spec.rb b/Library/Homebrew/test/cmd/leaves_spec.rb
index ee56b3cbe5bfa..4962a756031a3 100644
--- a/Library/Homebrew/test/cmd/leaves_spec.rb
+++ b/Library/Homebrew/test/cmd/leaves_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "cmd/shared_examples/args_parse"
diff --git a/Library/Homebrew/test/cmd/link_spec.rb b/Library/Homebrew/test/cmd/link_spec.rb
index 67748ae1386dd..650fbb046ed12 100644
--- a/Library/Homebrew/test/cmd/link_spec.rb
+++ b/Library/Homebrew/test/cmd/link_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "cmd/shared_examples/args_parse"
diff --git a/Library/Homebrew/test/cmd/list_spec.rb b/Library/Homebrew/test/cmd/list_spec.rb
index e12a8522d15e8..ff438b222b3d4 100644
--- a/Library/Homebrew/test/cmd/list_spec.rb
+++ b/Library/Homebrew/test/cmd/list_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "cmd/shared_examples/args_parse"
diff --git a/Library/Homebrew/test/cmd/log_spec.rb b/Library/Homebrew/test/cmd/log_spec.rb
index 7ed48a2d1fcf9..d989c260f9c48 100644
--- a/Library/Homebrew/test/cmd/log_spec.rb
+++ b/Library/Homebrew/test/cmd/log_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "cmd/shared_examples/args_parse"
diff --git a/Library/Homebrew/test/cmd/migrate_spec.rb b/Library/Homebrew/test/cmd/migrate_spec.rb
index 8c8faee07975e..fce8954712ec0 100644
--- a/Library/Homebrew/test/cmd/migrate_spec.rb
+++ b/Library/Homebrew/test/cmd/migrate_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "cmd/shared_examples/args_parse"
diff --git a/Library/Homebrew/test/cmd/missing_spec.rb b/Library/Homebrew/test/cmd/missing_spec.rb
index 8f5a3382f0ed7..0a5a6bb7b4bec 100644
--- a/Library/Homebrew/test/cmd/missing_spec.rb
+++ b/Library/Homebrew/test/cmd/missing_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "cmd/shared_examples/args_parse"
diff --git a/Library/Homebrew/test/cmd/options_spec.rb b/Library/Homebrew/test/cmd/options_spec.rb
index 655c3fa0ec179..9a3b495165d2e 100644
--- a/Library/Homebrew/test/cmd/options_spec.rb
+++ b/Library/Homebrew/test/cmd/options_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "cmd/shared_examples/args_parse"
diff --git a/Library/Homebrew/test/cmd/outdated_spec.rb b/Library/Homebrew/test/cmd/outdated_spec.rb
index ade9717205174..ba4becf50cd75 100644
--- a/Library/Homebrew/test/cmd/outdated_spec.rb
+++ b/Library/Homebrew/test/cmd/outdated_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "cmd/shared_examples/args_parse"
diff --git a/Library/Homebrew/test/cmd/pin_spec.rb b/Library/Homebrew/test/cmd/pin_spec.rb
index a34a3e21c8e93..ad42715a3c342 100644
--- a/Library/Homebrew/test/cmd/pin_spec.rb
+++ b/Library/Homebrew/test/cmd/pin_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "cmd/shared_examples/args_parse"
diff --git a/Library/Homebrew/test/cmd/postinstall_spec.rb b/Library/Homebrew/test/cmd/postinstall_spec.rb
index ed676f5588742..9be2e1288dd12 100644
--- a/Library/Homebrew/test/cmd/postinstall_spec.rb
+++ b/Library/Homebrew/test/cmd/postinstall_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "cmd/shared_examples/args_parse"
diff --git a/Library/Homebrew/test/cmd/readall_spec.rb b/Library/Homebrew/test/cmd/readall_spec.rb
index 245f1fde6874a..046a8cbf4cf49 100644
--- a/Library/Homebrew/test/cmd/readall_spec.rb
+++ b/Library/Homebrew/test/cmd/readall_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "cmd/shared_examples/args_parse"
diff --git a/Library/Homebrew/test/cmd/reinstall_spec.rb b/Library/Homebrew/test/cmd/reinstall_spec.rb
index 45b5a48ffbd77..f88fd0d3decaf 100644
--- a/Library/Homebrew/test/cmd/reinstall_spec.rb
+++ b/Library/Homebrew/test/cmd/reinstall_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "extend/ENV"
diff --git a/Library/Homebrew/test/cmd/search_spec.rb b/Library/Homebrew/test/cmd/search_spec.rb
index 43b1cf9a395b4..724a3ff0b94c5 100644
--- a/Library/Homebrew/test/cmd/search_spec.rb
+++ b/Library/Homebrew/test/cmd/search_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "cmd/search"
diff --git a/Library/Homebrew/test/cmd/services_spec.rb b/Library/Homebrew/test/cmd/services_spec.rb
index decee40fafd89..65d00d5d79a07 100644
--- a/Library/Homebrew/test/cmd/services_spec.rb
+++ b/Library/Homebrew/test/cmd/services_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 describe "brew services", :integration_test, :needs_macos, :needs_network do
diff --git a/Library/Homebrew/test/cmd/shared_examples/args_parse.rb b/Library/Homebrew/test/cmd/shared_examples/args_parse.rb
index d8b7873b80e38..1df6117ad1958 100644
--- a/Library/Homebrew/test/cmd/shared_examples/args_parse.rb
+++ b/Library/Homebrew/test/cmd/shared_examples/args_parse.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 shared_examples "parseable arguments" do
diff --git a/Library/Homebrew/test/cmd/switch_spec.rb b/Library/Homebrew/test/cmd/switch_spec.rb
index d50f993e4764e..b568e53000a64 100644
--- a/Library/Homebrew/test/cmd/switch_spec.rb
+++ b/Library/Homebrew/test/cmd/switch_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "cmd/shared_examples/args_parse"
diff --git a/Library/Homebrew/test/cmd/tap-info_spec.rb b/Library/Homebrew/test/cmd/tap-info_spec.rb
index d03ca17843a70..e2c1bebcac1c0 100644
--- a/Library/Homebrew/test/cmd/tap-info_spec.rb
+++ b/Library/Homebrew/test/cmd/tap-info_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "cmd/shared_examples/args_parse"
diff --git a/Library/Homebrew/test/cmd/tap_spec.rb b/Library/Homebrew/test/cmd/tap_spec.rb
index c90155e08575f..e54e91a5ffc77 100644
--- a/Library/Homebrew/test/cmd/tap_spec.rb
+++ b/Library/Homebrew/test/cmd/tap_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "cmd/shared_examples/args_parse"
diff --git a/Library/Homebrew/test/cmd/uninstall_spec.rb b/Library/Homebrew/test/cmd/uninstall_spec.rb
index 999d38f547e4b..9d79d3e7da6f0 100644
--- a/Library/Homebrew/test/cmd/uninstall_spec.rb
+++ b/Library/Homebrew/test/cmd/uninstall_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "cmd/uninstall"
diff --git a/Library/Homebrew/test/cmd/unlink_spec.rb b/Library/Homebrew/test/cmd/unlink_spec.rb
index 14893931651d8..090a091a0c04d 100644
--- a/Library/Homebrew/test/cmd/unlink_spec.rb
+++ b/Library/Homebrew/test/cmd/unlink_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "cmd/shared_examples/args_parse"
diff --git a/Library/Homebrew/test/cmd/unpin_spec.rb b/Library/Homebrew/test/cmd/unpin_spec.rb
index be3faa7c85082..e1aa11d67723f 100644
--- a/Library/Homebrew/test/cmd/unpin_spec.rb
+++ b/Library/Homebrew/test/cmd/unpin_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "cmd/shared_examples/args_parse"
diff --git a/Library/Homebrew/test/cmd/untap_spec.rb b/Library/Homebrew/test/cmd/untap_spec.rb
index 7a33683d46607..d637d960bc4a0 100644
--- a/Library/Homebrew/test/cmd/untap_spec.rb
+++ b/Library/Homebrew/test/cmd/untap_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "cmd/shared_examples/args_parse"
diff --git a/Library/Homebrew/test/cmd/update-report_spec.rb b/Library/Homebrew/test/cmd/update-report_spec.rb
index d073534313781..548d0e8457947 100644
--- a/Library/Homebrew/test/cmd/update-report_spec.rb
+++ b/Library/Homebrew/test/cmd/update-report_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "cmd/update-report"
diff --git a/Library/Homebrew/test/cmd/upgrade_spec.rb b/Library/Homebrew/test/cmd/upgrade_spec.rb
index 9f139fc059ca5..f03b919a9dc64 100644
--- a/Library/Homebrew/test/cmd/upgrade_spec.rb
+++ b/Library/Homebrew/test/cmd/upgrade_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "cmd/shared_examples/args_parse"
diff --git a/Library/Homebrew/test/cmd/uses_spec.rb b/Library/Homebrew/test/cmd/uses_spec.rb
index 8321777bab824..1b1341067c62a 100644
--- a/Library/Homebrew/test/cmd/uses_spec.rb
+++ b/Library/Homebrew/test/cmd/uses_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "cmd/shared_examples/args_parse"
diff --git a/Library/Homebrew/test/commands_spec.rb b/Library/Homebrew/test/commands_spec.rb
index 25f6955c919c9..b4a672191ffd2 100644
--- a/Library/Homebrew/test/commands_spec.rb
+++ b/Library/Homebrew/test/commands_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "commands"
diff --git a/Library/Homebrew/test/compiler_failure_spec.rb b/Library/Homebrew/test/compiler_failure_spec.rb
index 08763e33cb3ed..4ec13cc57b7ae 100644
--- a/Library/Homebrew/test/compiler_failure_spec.rb
+++ b/Library/Homebrew/test/compiler_failure_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "compilers"
diff --git a/Library/Homebrew/test/compiler_selector_spec.rb b/Library/Homebrew/test/compiler_selector_spec.rb
index f00c58addd516..a2ab44b943fb5 100644
--- a/Library/Homebrew/test/compiler_selector_spec.rb
+++ b/Library/Homebrew/test/compiler_selector_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "compilers"
diff --git a/Library/Homebrew/test/cxxstdlib_spec.rb b/Library/Homebrew/test/cxxstdlib_spec.rb
index 0cd0b2070d642..e16af54ec324d 100644
--- a/Library/Homebrew/test/cxxstdlib_spec.rb
+++ b/Library/Homebrew/test/cxxstdlib_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "formula"
diff --git a/Library/Homebrew/test/dependable_spec.rb b/Library/Homebrew/test/dependable_spec.rb
index 2beb3c4570edb..61b153a3e96d2 100644
--- a/Library/Homebrew/test/dependable_spec.rb
+++ b/Library/Homebrew/test/dependable_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "dependable"
diff --git a/Library/Homebrew/test/dependencies_helpers_spec.rb b/Library/Homebrew/test/dependencies_helpers_spec.rb
index 4686084bceb9f..4f3ab714dbb72 100644
--- a/Library/Homebrew/test/dependencies_helpers_spec.rb
+++ b/Library/Homebrew/test/dependencies_helpers_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "dependencies_helpers"
diff --git a/Library/Homebrew/test/dependencies_spec.rb b/Library/Homebrew/test/dependencies_spec.rb
index 07da34497f0d4..b9b5ae7c60ab9 100644
--- a/Library/Homebrew/test/dependencies_spec.rb
+++ b/Library/Homebrew/test/dependencies_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "dependencies"
diff --git a/Library/Homebrew/test/dependency_collector_spec.rb b/Library/Homebrew/test/dependency_collector_spec.rb
index 5bcefadd4a2bd..aa673a2339bb4 100644
--- a/Library/Homebrew/test/dependency_collector_spec.rb
+++ b/Library/Homebrew/test/dependency_collector_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "dependency_collector"
diff --git a/Library/Homebrew/test/dependency_expansion_spec.rb b/Library/Homebrew/test/dependency_expansion_spec.rb
index c3a1c4b7ea068..b0e5b8a6c8c42 100644
--- a/Library/Homebrew/test/dependency_expansion_spec.rb
+++ b/Library/Homebrew/test/dependency_expansion_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "dependency"
diff --git a/Library/Homebrew/test/dependency_spec.rb b/Library/Homebrew/test/dependency_spec.rb
index ec772097eda43..3c606c86ca4f0 100644
--- a/Library/Homebrew/test/dependency_spec.rb
+++ b/Library/Homebrew/test/dependency_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "dependency"
diff --git a/Library/Homebrew/test/description_cache_store_spec.rb b/Library/Homebrew/test/description_cache_store_spec.rb
index a5855a9cef8cb..6b16ffb6c4cc7 100644
--- a/Library/Homebrew/test/description_cache_store_spec.rb
+++ b/Library/Homebrew/test/description_cache_store_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "description_cache_store"
diff --git a/Library/Homebrew/test/descriptions_spec.rb b/Library/Homebrew/test/descriptions_spec.rb
index 01aa00434ed7d..e1afb7ec8e132 100644
--- a/Library/Homebrew/test/descriptions_spec.rb
+++ b/Library/Homebrew/test/descriptions_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "descriptions"
diff --git a/Library/Homebrew/test/dev-cmd/audit_spec.rb b/Library/Homebrew/test/dev-cmd/audit_spec.rb
index 1f730949a61f6..315066bc5ce13 100644
--- a/Library/Homebrew/test/dev-cmd/audit_spec.rb
+++ b/Library/Homebrew/test/dev-cmd/audit_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "dev-cmd/audit"
diff --git a/Library/Homebrew/test/dev-cmd/bottle_spec.rb b/Library/Homebrew/test/dev-cmd/bottle_spec.rb
index 1acbf44802d2f..c524f7d342de2 100644
--- a/Library/Homebrew/test/dev-cmd/bottle_spec.rb
+++ b/Library/Homebrew/test/dev-cmd/bottle_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "cmd/shared_examples/args_parse"
diff --git a/Library/Homebrew/test/dev-cmd/bump-cask-pr_spec.rb b/Library/Homebrew/test/dev-cmd/bump-cask-pr_spec.rb
index 69552cfd785ee..02ae9e8a9a479 100644
--- a/Library/Homebrew/test/dev-cmd/bump-cask-pr_spec.rb
+++ b/Library/Homebrew/test/dev-cmd/bump-cask-pr_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "cmd/shared_examples/args_parse"
diff --git a/Library/Homebrew/test/dev-cmd/bump-formula-pr_spec.rb b/Library/Homebrew/test/dev-cmd/bump-formula-pr_spec.rb
index 9cdc95f9a3451..08d090750125c 100644
--- a/Library/Homebrew/test/dev-cmd/bump-formula-pr_spec.rb
+++ b/Library/Homebrew/test/dev-cmd/bump-formula-pr_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "cmd/shared_examples/args_parse"
diff --git a/Library/Homebrew/test/dev-cmd/bump-revision_spec.rb b/Library/Homebrew/test/dev-cmd/bump-revision_spec.rb
index 3d025d0b5c4a7..51324ce3e79e7 100644
--- a/Library/Homebrew/test/dev-cmd/bump-revision_spec.rb
+++ b/Library/Homebrew/test/dev-cmd/bump-revision_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "cmd/shared_examples/args_parse"
diff --git a/Library/Homebrew/test/dev-cmd/bump_spec.rb b/Library/Homebrew/test/dev-cmd/bump_spec.rb
index 81b22e319baa9..33e4931f7e27e 100644
--- a/Library/Homebrew/test/dev-cmd/bump_spec.rb
+++ b/Library/Homebrew/test/dev-cmd/bump_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "cmd/shared_examples/args_parse"
diff --git a/Library/Homebrew/test/dev-cmd/cat_spec.rb b/Library/Homebrew/test/dev-cmd/cat_spec.rb
index 2a9132e76810d..fdeb97091a744 100644
--- a/Library/Homebrew/test/dev-cmd/cat_spec.rb
+++ b/Library/Homebrew/test/dev-cmd/cat_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "cmd/shared_examples/args_parse"
diff --git a/Library/Homebrew/test/dev-cmd/command_spec.rb b/Library/Homebrew/test/dev-cmd/command_spec.rb
index 1d71661f24837..5e6ecdfbe997c 100644
--- a/Library/Homebrew/test/dev-cmd/command_spec.rb
+++ b/Library/Homebrew/test/dev-cmd/command_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "cmd/shared_examples/args_parse"
diff --git a/Library/Homebrew/test/dev-cmd/create_spec.rb b/Library/Homebrew/test/dev-cmd/create_spec.rb
index e4e98c2074be6..54edd4b9e0264 100644
--- a/Library/Homebrew/test/dev-cmd/create_spec.rb
+++ b/Library/Homebrew/test/dev-cmd/create_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "cmd/shared_examples/args_parse"
diff --git a/Library/Homebrew/test/dev-cmd/diy_spec.rb b/Library/Homebrew/test/dev-cmd/diy_spec.rb
index 5168cf552263c..eafc466f315f8 100644
--- a/Library/Homebrew/test/dev-cmd/diy_spec.rb
+++ b/Library/Homebrew/test/dev-cmd/diy_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "cmd/shared_examples/args_parse"
diff --git a/Library/Homebrew/test/dev-cmd/edit_spec.rb b/Library/Homebrew/test/dev-cmd/edit_spec.rb
index df88019fa54ec..2e8a96ea6a869 100644
--- a/Library/Homebrew/test/dev-cmd/edit_spec.rb
+++ b/Library/Homebrew/test/dev-cmd/edit_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "cmd/shared_examples/args_parse"
diff --git a/Library/Homebrew/test/dev-cmd/extract_spec.rb b/Library/Homebrew/test/dev-cmd/extract_spec.rb
index c12c4eb06a319..5563f6079e22b 100644
--- a/Library/Homebrew/test/dev-cmd/extract_spec.rb
+++ b/Library/Homebrew/test/dev-cmd/extract_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "cmd/shared_examples/args_parse"
diff --git a/Library/Homebrew/test/dev-cmd/formula_spec.rb b/Library/Homebrew/test/dev-cmd/formula_spec.rb
index d9e96bc7b9b73..e52fb82670945 100644
--- a/Library/Homebrew/test/dev-cmd/formula_spec.rb
+++ b/Library/Homebrew/test/dev-cmd/formula_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "cmd/shared_examples/args_parse"
diff --git a/Library/Homebrew/test/dev-cmd/irb_spec.rb b/Library/Homebrew/test/dev-cmd/irb_spec.rb
index 666374c879d90..1d39e2d70c9d0 100644
--- a/Library/Homebrew/test/dev-cmd/irb_spec.rb
+++ b/Library/Homebrew/test/dev-cmd/irb_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "cmd/shared_examples/args_parse"
diff --git a/Library/Homebrew/test/dev-cmd/linkage_spec.rb b/Library/Homebrew/test/dev-cmd/linkage_spec.rb
index f083b5cb66585..1663e42c429d8 100644
--- a/Library/Homebrew/test/dev-cmd/linkage_spec.rb
+++ b/Library/Homebrew/test/dev-cmd/linkage_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "cmd/shared_examples/args_parse"
diff --git a/Library/Homebrew/test/dev-cmd/livecheck_spec.rb b/Library/Homebrew/test/dev-cmd/livecheck_spec.rb
index 4bbee4693b16e..9bd0dfee50af9 100644
--- a/Library/Homebrew/test/dev-cmd/livecheck_spec.rb
+++ b/Library/Homebrew/test/dev-cmd/livecheck_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "cmd/shared_examples/args_parse"
diff --git a/Library/Homebrew/test/dev-cmd/man_spec.rb b/Library/Homebrew/test/dev-cmd/man_spec.rb
index 07eab3a255fec..29523d832d653 100644
--- a/Library/Homebrew/test/dev-cmd/man_spec.rb
+++ b/Library/Homebrew/test/dev-cmd/man_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "cmd/shared_examples/args_parse"
diff --git a/Library/Homebrew/test/dev-cmd/mirror_spec.rb b/Library/Homebrew/test/dev-cmd/mirror_spec.rb
index 4ad0dc02a483f..bc6af40e28a32 100644
--- a/Library/Homebrew/test/dev-cmd/mirror_spec.rb
+++ b/Library/Homebrew/test/dev-cmd/mirror_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "cmd/shared_examples/args_parse"
diff --git a/Library/Homebrew/test/dev-cmd/pr-automerge_spec.rb b/Library/Homebrew/test/dev-cmd/pr-automerge_spec.rb
index d0230d13a0490..df6b0ef6689f4 100644
--- a/Library/Homebrew/test/dev-cmd/pr-automerge_spec.rb
+++ b/Library/Homebrew/test/dev-cmd/pr-automerge_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "cmd/shared_examples/args_parse"
diff --git a/Library/Homebrew/test/dev-cmd/pr-publish_spec.rb b/Library/Homebrew/test/dev-cmd/pr-publish_spec.rb
index f0b8e25cd68d3..f0021f0f45e3f 100644
--- a/Library/Homebrew/test/dev-cmd/pr-publish_spec.rb
+++ b/Library/Homebrew/test/dev-cmd/pr-publish_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "cmd/shared_examples/args_parse"
diff --git a/Library/Homebrew/test/dev-cmd/pr-pull_spec.rb b/Library/Homebrew/test/dev-cmd/pr-pull_spec.rb
index f11823c52c4d3..848323c00f637 100644
--- a/Library/Homebrew/test/dev-cmd/pr-pull_spec.rb
+++ b/Library/Homebrew/test/dev-cmd/pr-pull_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "dev-cmd/pr-pull"
diff --git a/Library/Homebrew/test/dev-cmd/pr-upload_spec.rb b/Library/Homebrew/test/dev-cmd/pr-upload_spec.rb
index 69a5f27c174a5..54530b609572f 100644
--- a/Library/Homebrew/test/dev-cmd/pr-upload_spec.rb
+++ b/Library/Homebrew/test/dev-cmd/pr-upload_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "cmd/shared_examples/args_parse"
diff --git a/Library/Homebrew/test/dev-cmd/prof_spec.rb b/Library/Homebrew/test/dev-cmd/prof_spec.rb
index c2dc0b3d45ccc..f4a3990e896d9 100644
--- a/Library/Homebrew/test/dev-cmd/prof_spec.rb
+++ b/Library/Homebrew/test/dev-cmd/prof_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "cmd/shared_examples/args_parse"
diff --git a/Library/Homebrew/test/dev-cmd/release-notes_spec.rb b/Library/Homebrew/test/dev-cmd/release-notes_spec.rb
index bbe9bff8747e2..21d1b29790d2c 100644
--- a/Library/Homebrew/test/dev-cmd/release-notes_spec.rb
+++ b/Library/Homebrew/test/dev-cmd/release-notes_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "cmd/shared_examples/args_parse"
diff --git a/Library/Homebrew/test/dev-cmd/ruby_spec.rb b/Library/Homebrew/test/dev-cmd/ruby_spec.rb
index 42bb98c1fd9b1..ae13bf021fa98 100644
--- a/Library/Homebrew/test/dev-cmd/ruby_spec.rb
+++ b/Library/Homebrew/test/dev-cmd/ruby_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "cmd/shared_examples/args_parse"
diff --git a/Library/Homebrew/test/dev-cmd/sh_spec.rb b/Library/Homebrew/test/dev-cmd/sh_spec.rb
index 52000a549db24..8fa4a72a0d1f6 100644
--- a/Library/Homebrew/test/dev-cmd/sh_spec.rb
+++ b/Library/Homebrew/test/dev-cmd/sh_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "cmd/shared_examples/args_parse"
diff --git a/Library/Homebrew/test/dev-cmd/sponsors_spec.rb b/Library/Homebrew/test/dev-cmd/sponsors_spec.rb
index 667dff55b6a4f..bee845842961e 100644
--- a/Library/Homebrew/test/dev-cmd/sponsors_spec.rb
+++ b/Library/Homebrew/test/dev-cmd/sponsors_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "cmd/shared_examples/args_parse"
diff --git a/Library/Homebrew/test/dev-cmd/style_spec.rb b/Library/Homebrew/test/dev-cmd/style_spec.rb
index 2c0164c9f9504..0fb6f90c1f6e4 100644
--- a/Library/Homebrew/test/dev-cmd/style_spec.rb
+++ b/Library/Homebrew/test/dev-cmd/style_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "cmd/shared_examples/args_parse"
diff --git a/Library/Homebrew/test/dev-cmd/tap-new_spec.rb b/Library/Homebrew/test/dev-cmd/tap-new_spec.rb
index 24e83443ac0d8..bbad80d12f26c 100644
--- a/Library/Homebrew/test/dev-cmd/tap-new_spec.rb
+++ b/Library/Homebrew/test/dev-cmd/tap-new_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "cmd/shared_examples/args_parse"
diff --git a/Library/Homebrew/test/dev-cmd/test_spec.rb b/Library/Homebrew/test/dev-cmd/test_spec.rb
index 866230a70399b..81f46c177b40c 100644
--- a/Library/Homebrew/test/dev-cmd/test_spec.rb
+++ b/Library/Homebrew/test/dev-cmd/test_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "cmd/shared_examples/args_parse"
diff --git a/Library/Homebrew/test/dev-cmd/typecheck_spec.rb b/Library/Homebrew/test/dev-cmd/typecheck_spec.rb
index 8fef2f67f1573..31c8c3b7fe6f2 100644
--- a/Library/Homebrew/test/dev-cmd/typecheck_spec.rb
+++ b/Library/Homebrew/test/dev-cmd/typecheck_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "cmd/shared_examples/args_parse"
diff --git a/Library/Homebrew/test/dev-cmd/unpack_spec.rb b/Library/Homebrew/test/dev-cmd/unpack_spec.rb
index 0a0c27eeefbe6..0799686914cd0 100644
--- a/Library/Homebrew/test/dev-cmd/unpack_spec.rb
+++ b/Library/Homebrew/test/dev-cmd/unpack_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "cmd/shared_examples/args_parse"
diff --git a/Library/Homebrew/test/dev-cmd/update-license-data_spec.rb b/Library/Homebrew/test/dev-cmd/update-license-data_spec.rb
index d9be457801d4e..734ee4545a1de 100644
--- a/Library/Homebrew/test/dev-cmd/update-license-data_spec.rb
+++ b/Library/Homebrew/test/dev-cmd/update-license-data_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "cmd/shared_examples/args_parse"
diff --git a/Library/Homebrew/test/dev-cmd/vendor-gems_spec.rb b/Library/Homebrew/test/dev-cmd/vendor-gems_spec.rb
index ac08d294701f3..dc6b9b10603da 100644
--- a/Library/Homebrew/test/dev-cmd/vendor-gems_spec.rb
+++ b/Library/Homebrew/test/dev-cmd/vendor-gems_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "cmd/shared_examples/args_parse"
diff --git a/Library/Homebrew/test/diagnostic_checks_spec.rb b/Library/Homebrew/test/diagnostic_checks_spec.rb
index 5fd14791c4f3b..bd2c17becaa8c 100644
--- a/Library/Homebrew/test/diagnostic_checks_spec.rb
+++ b/Library/Homebrew/test/diagnostic_checks_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "diagnostic"
diff --git a/Library/Homebrew/test/download_strategies_spec.rb b/Library/Homebrew/test/download_strategies_spec.rb
index 3f5f6c07a818c..120294835aec9 100644
--- a/Library/Homebrew/test/download_strategies_spec.rb
+++ b/Library/Homebrew/test/download_strategies_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "download_strategy"
diff --git a/Library/Homebrew/test/env_config_spec.rb b/Library/Homebrew/test/env_config_spec.rb
index cdc65adb9832b..47713b155dc59 100644
--- a/Library/Homebrew/test/env_config_spec.rb
+++ b/Library/Homebrew/test/env_config_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "diagnostic"
diff --git a/Library/Homebrew/test/error_during_execution_spec.rb b/Library/Homebrew/test/error_during_execution_spec.rb
index 513ff7a503cab..2b91937619a5c 100644
--- a/Library/Homebrew/test/error_during_execution_spec.rb
+++ b/Library/Homebrew/test/error_during_execution_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 describe ErrorDuringExecution do
diff --git a/Library/Homebrew/test/exceptions_spec.rb b/Library/Homebrew/test/exceptions_spec.rb
index 8bb4266ad77d4..e938c843c77af 100644
--- a/Library/Homebrew/test/exceptions_spec.rb
+++ b/Library/Homebrew/test/exceptions_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "exceptions"
diff --git a/Library/Homebrew/test/formatter_spec.rb b/Library/Homebrew/test/formatter_spec.rb
index fb348213aca2b..9e8d214f70144 100644
--- a/Library/Homebrew/test/formatter_spec.rb
+++ b/Library/Homebrew/test/formatter_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "utils/formatter"
diff --git a/Library/Homebrew/test/formula_free_port_spec.rb b/Library/Homebrew/test/formula_free_port_spec.rb
index 04320edf5dad4..84412d61d51cf 100644
--- a/Library/Homebrew/test/formula_free_port_spec.rb
+++ b/Library/Homebrew/test/formula_free_port_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "socket"
diff --git a/Library/Homebrew/test/formula_info_spec.rb b/Library/Homebrew/test/formula_info_spec.rb
index 4e1f416529933..0e8bcebb10d81 100644
--- a/Library/Homebrew/test/formula_info_spec.rb
+++ b/Library/Homebrew/test/formula_info_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "formula_info"
diff --git a/Library/Homebrew/test/formula_installer_bottle_spec.rb b/Library/Homebrew/test/formula_installer_bottle_spec.rb
index 0a6aec0f0b7bd..b42513f75d3d7 100644
--- a/Library/Homebrew/test/formula_installer_bottle_spec.rb
+++ b/Library/Homebrew/test/formula_installer_bottle_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "formula"
diff --git a/Library/Homebrew/test/formula_installer_spec.rb b/Library/Homebrew/test/formula_installer_spec.rb
index bffafdfe7e71c..0e84ed74a5ec3 100644
--- a/Library/Homebrew/test/formula_installer_spec.rb
+++ b/Library/Homebrew/test/formula_installer_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "formula"
diff --git a/Library/Homebrew/test/formula_pin_spec.rb b/Library/Homebrew/test/formula_pin_spec.rb
index 03e83da67204f..04e371cb4700f 100644
--- a/Library/Homebrew/test/formula_pin_spec.rb
+++ b/Library/Homebrew/test/formula_pin_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "formula_pin"
diff --git a/Library/Homebrew/test/formula_spec.rb b/Library/Homebrew/test/formula_spec.rb
index 82ef571953dc0..453fb312d2065 100644
--- a/Library/Homebrew/test/formula_spec.rb
+++ b/Library/Homebrew/test/formula_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "test/support/fixtures/testball"
diff --git a/Library/Homebrew/test/formula_spec_selection_spec.rb b/Library/Homebrew/test/formula_spec_selection_spec.rb
index bdaed0ddd105c..c16c13ad5c978 100644
--- a/Library/Homebrew/test/formula_spec_selection_spec.rb
+++ b/Library/Homebrew/test/formula_spec_selection_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "formula"
diff --git a/Library/Homebrew/test/formula_support_spec.rb b/Library/Homebrew/test/formula_support_spec.rb
index d20fedddf57d1..6fcd00f439c9e 100644
--- a/Library/Homebrew/test/formula_support_spec.rb
+++ b/Library/Homebrew/test/formula_support_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "formula_support"
diff --git a/Library/Homebrew/test/formula_validation_spec.rb b/Library/Homebrew/test/formula_validation_spec.rb
index c1782015850d5..30077967f049a 100644
--- a/Library/Homebrew/test/formula_validation_spec.rb
+++ b/Library/Homebrew/test/formula_validation_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "formula"
diff --git a/Library/Homebrew/test/formulary_spec.rb b/Library/Homebrew/test/formulary_spec.rb
index bbd6aca88a54b..b8ca07410d558 100644
--- a/Library/Homebrew/test/formulary_spec.rb
+++ b/Library/Homebrew/test/formulary_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "formula"
diff --git a/Library/Homebrew/test/global_spec.rb b/Library/Homebrew/test/global_spec.rb
index 5ae60e6662d1a..6c34ca88389e4 100644
--- a/Library/Homebrew/test/global_spec.rb
+++ b/Library/Homebrew/test/global_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 describe "brew", :integration_test do
diff --git a/Library/Homebrew/test/hardware/cpu_spec.rb b/Library/Homebrew/test/hardware/cpu_spec.rb
index 343da43781b1b..f7ea9243e440b 100644
--- a/Library/Homebrew/test/hardware/cpu_spec.rb
+++ b/Library/Homebrew/test/hardware/cpu_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "hardware"
diff --git a/Library/Homebrew/test/inreplace_spec.rb b/Library/Homebrew/test/inreplace_spec.rb
index 9389c0a311a84..aa80fddd0c627 100644
--- a/Library/Homebrew/test/inreplace_spec.rb
+++ b/Library/Homebrew/test/inreplace_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "extend/string"
diff --git a/Library/Homebrew/test/java_requirement_spec.rb b/Library/Homebrew/test/java_requirement_spec.rb
index 590f27a1d094c..42a065faf2a32 100644
--- a/Library/Homebrew/test/java_requirement_spec.rb
+++ b/Library/Homebrew/test/java_requirement_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "cli/args"
diff --git a/Library/Homebrew/test/keg_spec.rb b/Library/Homebrew/test/keg_spec.rb
index 060ceb2d426a8..4c81962a16cda 100644
--- a/Library/Homebrew/test/keg_spec.rb
+++ b/Library/Homebrew/test/keg_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "keg"
diff --git a/Library/Homebrew/test/language/go_spec.rb b/Library/Homebrew/test/language/go_spec.rb
index ac631f38ccd4a..b2c3212ad9591 100644
--- a/Library/Homebrew/test/language/go_spec.rb
+++ b/Library/Homebrew/test/language/go_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "language/go"
diff --git a/Library/Homebrew/test/language/java_spec.rb b/Library/Homebrew/test/language/java_spec.rb
index 217eb792d7a2f..4893a272ce30f 100644
--- a/Library/Homebrew/test/language/java_spec.rb
+++ b/Library/Homebrew/test/language/java_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "language/java"
diff --git a/Library/Homebrew/test/language/node_spec.rb b/Library/Homebrew/test/language/node_spec.rb
index 79c3cf2496929..3907b96acb876 100644
--- a/Library/Homebrew/test/language/node_spec.rb
+++ b/Library/Homebrew/test/language/node_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "language/node"
diff --git a/Library/Homebrew/test/language/perl/shebang_spec.rb b/Library/Homebrew/test/language/perl/shebang_spec.rb
index 5a59f162b7e69..8dbffe0b4c467 100644
--- a/Library/Homebrew/test/language/perl/shebang_spec.rb
+++ b/Library/Homebrew/test/language/perl/shebang_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "language/perl"
diff --git a/Library/Homebrew/test/language/python_spec.rb b/Library/Homebrew/test/language/python_spec.rb
index 174373d9994e9..6fab0b50f1b23 100644
--- a/Library/Homebrew/test/language/python_spec.rb
+++ b/Library/Homebrew/test/language/python_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "language/python"
diff --git a/Library/Homebrew/test/lazy_object_spec.rb b/Library/Homebrew/test/lazy_object_spec.rb
index 57ca637fa4bbc..f9520b83c82e2 100644
--- a/Library/Homebrew/test/lazy_object_spec.rb
+++ b/Library/Homebrew/test/lazy_object_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "lazy_object"
diff --git a/Library/Homebrew/test/linkage_cache_store_spec.rb b/Library/Homebrew/test/linkage_cache_store_spec.rb
index 51dec2b1dc860..9e9c53385b764 100644
--- a/Library/Homebrew/test/linkage_cache_store_spec.rb
+++ b/Library/Homebrew/test/linkage_cache_store_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "linkage_cache_store"
diff --git a/Library/Homebrew/test/livecheck/livecheck_spec.rb b/Library/Homebrew/test/livecheck/livecheck_spec.rb
index 68d95cf90a0bb..5bbd943203253 100644
--- a/Library/Homebrew/test/livecheck/livecheck_spec.rb
+++ b/Library/Homebrew/test/livecheck/livecheck_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # Frozen_string_literal: true
 
 require "livecheck/livecheck"
diff --git a/Library/Homebrew/test/livecheck/strategy/apache_spec.rb b/Library/Homebrew/test/livecheck/strategy/apache_spec.rb
index b44ca71ea29e6..7bd4d9ae1ea88 100644
--- a/Library/Homebrew/test/livecheck/strategy/apache_spec.rb
+++ b/Library/Homebrew/test/livecheck/strategy/apache_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "livecheck/strategy/apache"
diff --git a/Library/Homebrew/test/livecheck/strategy/bitbucket_spec.rb b/Library/Homebrew/test/livecheck/strategy/bitbucket_spec.rb
index 2026d157a6054..f5c2df857ffa9 100644
--- a/Library/Homebrew/test/livecheck/strategy/bitbucket_spec.rb
+++ b/Library/Homebrew/test/livecheck/strategy/bitbucket_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "livecheck/strategy/bitbucket"
diff --git a/Library/Homebrew/test/livecheck/strategy/git_spec.rb b/Library/Homebrew/test/livecheck/strategy/git_spec.rb
index 366ed35586a1e..9a0996a2d8a99 100644
--- a/Library/Homebrew/test/livecheck/strategy/git_spec.rb
+++ b/Library/Homebrew/test/livecheck/strategy/git_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "livecheck/strategy/git"
diff --git a/Library/Homebrew/test/livecheck/strategy/gnome_spec.rb b/Library/Homebrew/test/livecheck/strategy/gnome_spec.rb
index 79145e02c133b..4edf101613d8f 100644
--- a/Library/Homebrew/test/livecheck/strategy/gnome_spec.rb
+++ b/Library/Homebrew/test/livecheck/strategy/gnome_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "livecheck/strategy/gnome"
diff --git a/Library/Homebrew/test/livecheck/strategy/gnu_spec.rb b/Library/Homebrew/test/livecheck/strategy/gnu_spec.rb
index 82cfc98c7329f..63e28de011147 100644
--- a/Library/Homebrew/test/livecheck/strategy/gnu_spec.rb
+++ b/Library/Homebrew/test/livecheck/strategy/gnu_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "livecheck/strategy/gnu"
diff --git a/Library/Homebrew/test/livecheck/strategy/hackage_spec.rb b/Library/Homebrew/test/livecheck/strategy/hackage_spec.rb
index 63e3346bdbbc3..11a35d7ba591f 100644
--- a/Library/Homebrew/test/livecheck/strategy/hackage_spec.rb
+++ b/Library/Homebrew/test/livecheck/strategy/hackage_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "livecheck/strategy/hackage"
diff --git a/Library/Homebrew/test/livecheck/strategy/launchpad_spec.rb b/Library/Homebrew/test/livecheck/strategy/launchpad_spec.rb
index 54630bb5d6f9d..150c54778457d 100644
--- a/Library/Homebrew/test/livecheck/strategy/launchpad_spec.rb
+++ b/Library/Homebrew/test/livecheck/strategy/launchpad_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "livecheck/strategy/launchpad"
diff --git a/Library/Homebrew/test/livecheck/strategy/npm_spec.rb b/Library/Homebrew/test/livecheck/strategy/npm_spec.rb
index 3bee724891299..2612434283446 100644
--- a/Library/Homebrew/test/livecheck/strategy/npm_spec.rb
+++ b/Library/Homebrew/test/livecheck/strategy/npm_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "livecheck/strategy/npm"
diff --git a/Library/Homebrew/test/livecheck/strategy/page_match_spec.rb b/Library/Homebrew/test/livecheck/strategy/page_match_spec.rb
index 1b615b2467c20..96bf43ad531e9 100644
--- a/Library/Homebrew/test/livecheck/strategy/page_match_spec.rb
+++ b/Library/Homebrew/test/livecheck/strategy/page_match_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "livecheck/strategy/page_match"
diff --git a/Library/Homebrew/test/livecheck/strategy/pypi_spec.rb b/Library/Homebrew/test/livecheck/strategy/pypi_spec.rb
index b8c49817ec4c0..e8a4ba1b87382 100644
--- a/Library/Homebrew/test/livecheck/strategy/pypi_spec.rb
+++ b/Library/Homebrew/test/livecheck/strategy/pypi_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "livecheck/strategy/pypi"
diff --git a/Library/Homebrew/test/livecheck/strategy/sourceforge_spec.rb b/Library/Homebrew/test/livecheck/strategy/sourceforge_spec.rb
index 8ca98945a3935..c37c9cdc2eeea 100644
--- a/Library/Homebrew/test/livecheck/strategy/sourceforge_spec.rb
+++ b/Library/Homebrew/test/livecheck/strategy/sourceforge_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "livecheck/strategy/sourceforge"
diff --git a/Library/Homebrew/test/livecheck/strategy/xorg_spec.rb b/Library/Homebrew/test/livecheck/strategy/xorg_spec.rb
index 7db151cc7835a..664797732b17d 100644
--- a/Library/Homebrew/test/livecheck/strategy/xorg_spec.rb
+++ b/Library/Homebrew/test/livecheck/strategy/xorg_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "livecheck/strategy/xorg"
diff --git a/Library/Homebrew/test/livecheck/strategy_spec.rb b/Library/Homebrew/test/livecheck/strategy_spec.rb
index de0869a70066b..a2480b34031f0 100644
--- a/Library/Homebrew/test/livecheck/strategy_spec.rb
+++ b/Library/Homebrew/test/livecheck/strategy_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "livecheck/strategy"
diff --git a/Library/Homebrew/test/livecheck_spec.rb b/Library/Homebrew/test/livecheck_spec.rb
index e5ed4a57c958b..84ed8df539eda 100644
--- a/Library/Homebrew/test/livecheck_spec.rb
+++ b/Library/Homebrew/test/livecheck_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "formula"
diff --git a/Library/Homebrew/test/locale_spec.rb b/Library/Homebrew/test/locale_spec.rb
index 52c0e6aeb6a32..05a433122c601 100644
--- a/Library/Homebrew/test/locale_spec.rb
+++ b/Library/Homebrew/test/locale_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "locale"
diff --git a/Library/Homebrew/test/lock_file_spec.rb b/Library/Homebrew/test/lock_file_spec.rb
index f9e94964894c5..c8aca6bebd2fd 100644
--- a/Library/Homebrew/test/lock_file_spec.rb
+++ b/Library/Homebrew/test/lock_file_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "lock_file"
diff --git a/Library/Homebrew/test/messages_spec.rb b/Library/Homebrew/test/messages_spec.rb
index fa97096d12e9b..aa54d406a1783 100644
--- a/Library/Homebrew/test/messages_spec.rb
+++ b/Library/Homebrew/test/messages_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "messages"
diff --git a/Library/Homebrew/test/migrator_spec.rb b/Library/Homebrew/test/migrator_spec.rb
index e17a4bf440edd..1c21b93ab746a 100644
--- a/Library/Homebrew/test/migrator_spec.rb
+++ b/Library/Homebrew/test/migrator_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "migrator"
diff --git a/Library/Homebrew/test/missing_formula_spec.rb b/Library/Homebrew/test/missing_formula_spec.rb
index 4d88dfedca1d9..14fb5bdcff64b 100644
--- a/Library/Homebrew/test/missing_formula_spec.rb
+++ b/Library/Homebrew/test/missing_formula_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "missing_formula"
diff --git a/Library/Homebrew/test/options_spec.rb b/Library/Homebrew/test/options_spec.rb
index b864fe662ed87..fa180493f6e03 100644
--- a/Library/Homebrew/test/options_spec.rb
+++ b/Library/Homebrew/test/options_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "options"
diff --git a/Library/Homebrew/test/os/linux/dependency_collector_spec.rb b/Library/Homebrew/test/os/linux/dependency_collector_spec.rb
index b13b458d20dae..3baab3f2d42c8 100644
--- a/Library/Homebrew/test/os/linux/dependency_collector_spec.rb
+++ b/Library/Homebrew/test/os/linux/dependency_collector_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "dependency_collector"
diff --git a/Library/Homebrew/test/os/linux/diagnostic_spec.rb b/Library/Homebrew/test/os/linux/diagnostic_spec.rb
index 185eab89a5c47..8c32c83198472 100644
--- a/Library/Homebrew/test/os/linux/diagnostic_spec.rb
+++ b/Library/Homebrew/test/os/linux/diagnostic_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "diagnostic"
diff --git a/Library/Homebrew/test/os/linux/formula_spec.rb b/Library/Homebrew/test/os/linux/formula_spec.rb
index 7ef64aecd6d6a..806e4a3f7710f 100644
--- a/Library/Homebrew/test/os/linux/formula_spec.rb
+++ b/Library/Homebrew/test/os/linux/formula_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "test/support/fixtures/testball"
diff --git a/Library/Homebrew/test/os/linux/pathname_spec.rb b/Library/Homebrew/test/os/linux/pathname_spec.rb
index 7e4126585adf7..cae19a846e126 100644
--- a/Library/Homebrew/test/os/linux/pathname_spec.rb
+++ b/Library/Homebrew/test/os/linux/pathname_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "extend/pathname"
diff --git a/Library/Homebrew/test/os/mac/dependency_collector_spec.rb b/Library/Homebrew/test/os/mac/dependency_collector_spec.rb
index eacaf971fc5d6..eb29d478d507d 100644
--- a/Library/Homebrew/test/os/mac/dependency_collector_spec.rb
+++ b/Library/Homebrew/test/os/mac/dependency_collector_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "dependency_collector"
diff --git a/Library/Homebrew/test/os/mac/diagnostic_spec.rb b/Library/Homebrew/test/os/mac/diagnostic_spec.rb
index aa44899d50e95..de6ed40659cd5 100644
--- a/Library/Homebrew/test/os/mac/diagnostic_spec.rb
+++ b/Library/Homebrew/test/os/mac/diagnostic_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "diagnostic"
diff --git a/Library/Homebrew/test/os/mac/formula_spec.rb b/Library/Homebrew/test/os/mac/formula_spec.rb
index 05f15cb809213..b33878dc4db86 100644
--- a/Library/Homebrew/test/os/mac/formula_spec.rb
+++ b/Library/Homebrew/test/os/mac/formula_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "test/support/fixtures/testball"
diff --git a/Library/Homebrew/test/os/mac/java_requirement_spec.rb b/Library/Homebrew/test/os/mac/java_requirement_spec.rb
index 65729b23bc7d7..4d83a58898dfa 100644
--- a/Library/Homebrew/test/os/mac/java_requirement_spec.rb
+++ b/Library/Homebrew/test/os/mac/java_requirement_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "cli/args"
diff --git a/Library/Homebrew/test/os/mac/keg_spec.rb b/Library/Homebrew/test/os/mac/keg_spec.rb
index b70068c9535c7..6ce7bc0758d3b 100644
--- a/Library/Homebrew/test/os/mac/keg_spec.rb
+++ b/Library/Homebrew/test/os/mac/keg_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "keg"
diff --git a/Library/Homebrew/test/os/mac/mach_spec.rb b/Library/Homebrew/test/os/mac/mach_spec.rb
index c10a661f9a46e..1bc6f59f97d01 100644
--- a/Library/Homebrew/test/os/mac/mach_spec.rb
+++ b/Library/Homebrew/test/os/mac/mach_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 describe "Mach-O Pathname tests" do
diff --git a/Library/Homebrew/test/os/mac/pkgconfig_spec.rb b/Library/Homebrew/test/os/mac/pkgconfig_spec.rb
index fa8a1de35b5f1..4b0e2abbba076 100644
--- a/Library/Homebrew/test/os/mac/pkgconfig_spec.rb
+++ b/Library/Homebrew/test/os/mac/pkgconfig_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 # These tests assume the needed SDKs are correctly installed, i.e. `brew doctor` passes.
diff --git a/Library/Homebrew/test/os/mac/software_spec_spec.rb b/Library/Homebrew/test/os/mac/software_spec_spec.rb
index af94ef6f528b4..e716a7624f06a 100644
--- a/Library/Homebrew/test/os/mac/software_spec_spec.rb
+++ b/Library/Homebrew/test/os/mac/software_spec_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "software_spec"
diff --git a/Library/Homebrew/test/os/mac/version_spec.rb b/Library/Homebrew/test/os/mac/version_spec.rb
index 3f332ed5aac1e..efd09385716ba 100644
--- a/Library/Homebrew/test/os/mac/version_spec.rb
+++ b/Library/Homebrew/test/os/mac/version_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "version"
diff --git a/Library/Homebrew/test/os/mac_spec.rb b/Library/Homebrew/test/os/mac_spec.rb
index e3c1aa8cbb9ca..d7fff66b2a95c 100644
--- a/Library/Homebrew/test/os/mac_spec.rb
+++ b/Library/Homebrew/test/os/mac_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "locale"
diff --git a/Library/Homebrew/test/os/os_spec.rb b/Library/Homebrew/test/os/os_spec.rb
index 1e671f67a517a..6d605258105f2 100644
--- a/Library/Homebrew/test/os/os_spec.rb
+++ b/Library/Homebrew/test/os/os_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 describe OS do
diff --git a/Library/Homebrew/test/patch_spec.rb b/Library/Homebrew/test/patch_spec.rb
index fff1fc48b287f..1708cd39cafcd 100644
--- a/Library/Homebrew/test/patch_spec.rb
+++ b/Library/Homebrew/test/patch_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "patch"
diff --git a/Library/Homebrew/test/patching_spec.rb b/Library/Homebrew/test/patching_spec.rb
index 737e14067652a..1259ac7c4a2b3 100644
--- a/Library/Homebrew/test/patching_spec.rb
+++ b/Library/Homebrew/test/patching_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "formula"
diff --git a/Library/Homebrew/test/pathname_spec.rb b/Library/Homebrew/test/pathname_spec.rb
index fe1bddbaa0995..383da9fb79da7 100644
--- a/Library/Homebrew/test/pathname_spec.rb
+++ b/Library/Homebrew/test/pathname_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "extend/pathname"
diff --git a/Library/Homebrew/test/pkg_version_spec.rb b/Library/Homebrew/test/pkg_version_spec.rb
index ee8bedd610d72..61344d094e807 100644
--- a/Library/Homebrew/test/pkg_version_spec.rb
+++ b/Library/Homebrew/test/pkg_version_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "pkg_version"
diff --git a/Library/Homebrew/test/requirement_spec.rb b/Library/Homebrew/test/requirement_spec.rb
index ffcb3a8de11d5..018496b036cc0 100644
--- a/Library/Homebrew/test/requirement_spec.rb
+++ b/Library/Homebrew/test/requirement_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "cli/args"
diff --git a/Library/Homebrew/test/requirements/codesign_requirement_spec.rb b/Library/Homebrew/test/requirements/codesign_requirement_spec.rb
index 483104bce62b5..0f22b9f67a5a4 100644
--- a/Library/Homebrew/test/requirements/codesign_requirement_spec.rb
+++ b/Library/Homebrew/test/requirements/codesign_requirement_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "requirements/codesign_requirement"
diff --git a/Library/Homebrew/test/requirements/java_requirement_spec.rb b/Library/Homebrew/test/requirements/java_requirement_spec.rb
index 969532d0c76e4..59e4dcc645b7c 100644
--- a/Library/Homebrew/test/requirements/java_requirement_spec.rb
+++ b/Library/Homebrew/test/requirements/java_requirement_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "requirements/java_requirement"
diff --git a/Library/Homebrew/test/requirements/linux_requirement_spec.rb b/Library/Homebrew/test/requirements/linux_requirement_spec.rb
index f328579fa29a0..78167a4d877cd 100644
--- a/Library/Homebrew/test/requirements/linux_requirement_spec.rb
+++ b/Library/Homebrew/test/requirements/linux_requirement_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "cli/args"
diff --git a/Library/Homebrew/test/requirements/macos_requirement_spec.rb b/Library/Homebrew/test/requirements/macos_requirement_spec.rb
index b9661112625a2..488f8c1f04ada 100644
--- a/Library/Homebrew/test/requirements/macos_requirement_spec.rb
+++ b/Library/Homebrew/test/requirements/macos_requirement_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "cli/args"
diff --git a/Library/Homebrew/test/requirements/osxfuse_requirement_spec.rb b/Library/Homebrew/test/requirements/osxfuse_requirement_spec.rb
index 8c38a4588479b..4b9632a389f67 100644
--- a/Library/Homebrew/test/requirements/osxfuse_requirement_spec.rb
+++ b/Library/Homebrew/test/requirements/osxfuse_requirement_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "cli/args"
diff --git a/Library/Homebrew/test/requirements_spec.rb b/Library/Homebrew/test/requirements_spec.rb
index f20e7bc9edbeb..ae6bfdc2c5861 100644
--- a/Library/Homebrew/test/requirements_spec.rb
+++ b/Library/Homebrew/test/requirements_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "requirements"
diff --git a/Library/Homebrew/test/resource_spec.rb b/Library/Homebrew/test/resource_spec.rb
index fd4e59101413f..260bd9c50cd3e 100644
--- a/Library/Homebrew/test/resource_spec.rb
+++ b/Library/Homebrew/test/resource_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "resource"
diff --git a/Library/Homebrew/test/rubocop_spec.rb b/Library/Homebrew/test/rubocop_spec.rb
index a5750a430c90b..83ae2ddf683bd 100644
--- a/Library/Homebrew/test/rubocop_spec.rb
+++ b/Library/Homebrew/test/rubocop_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "open3"
diff --git a/Library/Homebrew/test/rubocops/cask/desc_spec.rb b/Library/Homebrew/test/rubocops/cask/desc_spec.rb
index d76d37b6c785d..633db2e1c1827 100644
--- a/Library/Homebrew/test/rubocops/cask/desc_spec.rb
+++ b/Library/Homebrew/test/rubocops/cask/desc_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "rubocops/rubocop-cask"
diff --git a/Library/Homebrew/test/rubocops/cask/homepage_matches_url_spec.rb b/Library/Homebrew/test/rubocops/cask/homepage_matches_url_spec.rb
index dd175cb4fc586..4ef084f3e1182 100644
--- a/Library/Homebrew/test/rubocops/cask/homepage_matches_url_spec.rb
+++ b/Library/Homebrew/test/rubocops/cask/homepage_matches_url_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "rubocops/rubocop-cask"
diff --git a/Library/Homebrew/test/rubocops/cask/homepage_url_trailing_slash_spec.rb b/Library/Homebrew/test/rubocops/cask/homepage_url_trailing_slash_spec.rb
index 81fea8a0076d3..05d98bec5a2ec 100644
--- a/Library/Homebrew/test/rubocops/cask/homepage_url_trailing_slash_spec.rb
+++ b/Library/Homebrew/test/rubocops/cask/homepage_url_trailing_slash_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "rubocops/rubocop-cask"
diff --git a/Library/Homebrew/test/rubocops/cask/no_dsl_version_spec.rb b/Library/Homebrew/test/rubocops/cask/no_dsl_version_spec.rb
index 2f6d5747c7074..a8f1c574e5b7e 100644
--- a/Library/Homebrew/test/rubocops/cask/no_dsl_version_spec.rb
+++ b/Library/Homebrew/test/rubocops/cask/no_dsl_version_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "rubocops/rubocop-cask"
diff --git a/Library/Homebrew/test/rubocops/cask/shared_examples/cask_cop.rb b/Library/Homebrew/test/rubocops/cask/shared_examples/cask_cop.rb
index 3a11d6be0e502..8654a496067fd 100644
--- a/Library/Homebrew/test/rubocops/cask/shared_examples/cask_cop.rb
+++ b/Library/Homebrew/test/rubocops/cask/shared_examples/cask_cop.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 module CaskCop
diff --git a/Library/Homebrew/test/rubocops/cask/stanza_grouping_spec.rb b/Library/Homebrew/test/rubocops/cask/stanza_grouping_spec.rb
index 21cfb5393387b..3cce050983a04 100644
--- a/Library/Homebrew/test/rubocops/cask/stanza_grouping_spec.rb
+++ b/Library/Homebrew/test/rubocops/cask/stanza_grouping_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "rubocops/rubocop-cask"
diff --git a/Library/Homebrew/test/rubocops/cask/stanza_order_spec.rb b/Library/Homebrew/test/rubocops/cask/stanza_order_spec.rb
index c10ef5bf5a8e2..0afabf03867bb 100644
--- a/Library/Homebrew/test/rubocops/cask/stanza_order_spec.rb
+++ b/Library/Homebrew/test/rubocops/cask/stanza_order_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "rubocops/rubocop-cask"
diff --git a/Library/Homebrew/test/rubocops/caveats_spec.rb b/Library/Homebrew/test/rubocops/caveats_spec.rb
index a19e8ab8f57c3..a2b76acb80bd8 100644
--- a/Library/Homebrew/test/rubocops/caveats_spec.rb
+++ b/Library/Homebrew/test/rubocops/caveats_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "rubocops/caveats"
diff --git a/Library/Homebrew/test/rubocops/checksum_spec.rb b/Library/Homebrew/test/rubocops/checksum_spec.rb
index 0d3f0e5420462..460987283ab71 100644
--- a/Library/Homebrew/test/rubocops/checksum_spec.rb
+++ b/Library/Homebrew/test/rubocops/checksum_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "rubocops/checksum"
diff --git a/Library/Homebrew/test/rubocops/class_spec.rb b/Library/Homebrew/test/rubocops/class_spec.rb
index 06a3c94704261..1f0c84ab27e46 100644
--- a/Library/Homebrew/test/rubocops/class_spec.rb
+++ b/Library/Homebrew/test/rubocops/class_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "rubocops/class"
diff --git a/Library/Homebrew/test/rubocops/components_order_spec.rb b/Library/Homebrew/test/rubocops/components_order_spec.rb
index cedab622285d6..098e782546632 100644
--- a/Library/Homebrew/test/rubocops/components_order_spec.rb
+++ b/Library/Homebrew/test/rubocops/components_order_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "rubocops/components_order"
diff --git a/Library/Homebrew/test/rubocops/components_redundancy_spec.rb b/Library/Homebrew/test/rubocops/components_redundancy_spec.rb
index 4eea2dca3f7b7..5bb778d298fc2 100644
--- a/Library/Homebrew/test/rubocops/components_redundancy_spec.rb
+++ b/Library/Homebrew/test/rubocops/components_redundancy_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "rubocops/components_redundancy"
diff --git a/Library/Homebrew/test/rubocops/conflicts_spec.rb b/Library/Homebrew/test/rubocops/conflicts_spec.rb
index 6a1a839ce5de8..3d2fe4146204b 100644
--- a/Library/Homebrew/test/rubocops/conflicts_spec.rb
+++ b/Library/Homebrew/test/rubocops/conflicts_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "rubocops/conflicts"
diff --git a/Library/Homebrew/test/rubocops/dependency_order_spec.rb b/Library/Homebrew/test/rubocops/dependency_order_spec.rb
index 5863686c3f576..8d5be00c2a15f 100644
--- a/Library/Homebrew/test/rubocops/dependency_order_spec.rb
+++ b/Library/Homebrew/test/rubocops/dependency_order_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "rubocops/dependency_order"
diff --git a/Library/Homebrew/test/rubocops/deprecate_disable_spec.rb b/Library/Homebrew/test/rubocops/deprecate_disable_spec.rb
index 4756a361dba28..afc1da7e3296f 100644
--- a/Library/Homebrew/test/rubocops/deprecate_disable_spec.rb
+++ b/Library/Homebrew/test/rubocops/deprecate_disable_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "rubocops/deprecate_disable"
diff --git a/Library/Homebrew/test/rubocops/files_spec.rb b/Library/Homebrew/test/rubocops/files_spec.rb
index 83142a1b51893..746b4212b766b 100644
--- a/Library/Homebrew/test/rubocops/files_spec.rb
+++ b/Library/Homebrew/test/rubocops/files_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "rubocops/files"
diff --git a/Library/Homebrew/test/rubocops/formula_desc_spec.rb b/Library/Homebrew/test/rubocops/formula_desc_spec.rb
index 5d85184ef384b..47c518537f3ac 100644
--- a/Library/Homebrew/test/rubocops/formula_desc_spec.rb
+++ b/Library/Homebrew/test/rubocops/formula_desc_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "rubocops/formula_desc"
diff --git a/Library/Homebrew/test/rubocops/homepage_spec.rb b/Library/Homebrew/test/rubocops/homepage_spec.rb
index fcdc6b9a1109b..cfabcb0921bc9 100644
--- a/Library/Homebrew/test/rubocops/homepage_spec.rb
+++ b/Library/Homebrew/test/rubocops/homepage_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "rubocops/homepage"
diff --git a/Library/Homebrew/test/rubocops/keg_only_spec.rb b/Library/Homebrew/test/rubocops/keg_only_spec.rb
index 2f0af35aab685..16bb4c6234735 100644
--- a/Library/Homebrew/test/rubocops/keg_only_spec.rb
+++ b/Library/Homebrew/test/rubocops/keg_only_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "rubocops/keg_only"
diff --git a/Library/Homebrew/test/rubocops/lines_spec.rb b/Library/Homebrew/test/rubocops/lines_spec.rb
index fa61dd9a64766..a5b3cbd69d962 100644
--- a/Library/Homebrew/test/rubocops/lines_spec.rb
+++ b/Library/Homebrew/test/rubocops/lines_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "rubocops/lines"
diff --git a/Library/Homebrew/test/rubocops/livecheck_spec.rb b/Library/Homebrew/test/rubocops/livecheck_spec.rb
index 5bda3ac2c82e0..33bb7cf2e0fec 100644
--- a/Library/Homebrew/test/rubocops/livecheck_spec.rb
+++ b/Library/Homebrew/test/rubocops/livecheck_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "rubocops/livecheck"
diff --git a/Library/Homebrew/test/rubocops/options_spec.rb b/Library/Homebrew/test/rubocops/options_spec.rb
index 7b8a5823ade9b..e1d9981980576 100644
--- a/Library/Homebrew/test/rubocops/options_spec.rb
+++ b/Library/Homebrew/test/rubocops/options_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "rubocops/options"
diff --git a/Library/Homebrew/test/rubocops/patches_spec.rb b/Library/Homebrew/test/rubocops/patches_spec.rb
index f1bbc3d37e334..41d24cc5125f5 100644
--- a/Library/Homebrew/test/rubocops/patches_spec.rb
+++ b/Library/Homebrew/test/rubocops/patches_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "rubocops/patches"
diff --git a/Library/Homebrew/test/rubocops/text_spec.rb b/Library/Homebrew/test/rubocops/text_spec.rb
index 3960272dbcf1d..c308451b19d20 100644
--- a/Library/Homebrew/test/rubocops/text_spec.rb
+++ b/Library/Homebrew/test/rubocops/text_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "rubocops/text"
diff --git a/Library/Homebrew/test/rubocops/urls_spec.rb b/Library/Homebrew/test/rubocops/urls_spec.rb
index e36f40493a724..0be3154ee113b 100644
--- a/Library/Homebrew/test/rubocops/urls_spec.rb
+++ b/Library/Homebrew/test/rubocops/urls_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "rubocops/urls"
diff --git a/Library/Homebrew/test/rubocops/uses_from_macos_spec.rb b/Library/Homebrew/test/rubocops/uses_from_macos_spec.rb
index d74cb57d27680..6a1280050518b 100644
--- a/Library/Homebrew/test/rubocops/uses_from_macos_spec.rb
+++ b/Library/Homebrew/test/rubocops/uses_from_macos_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "rubocops/uses_from_macos"
diff --git a/Library/Homebrew/test/rubocops/version_spec.rb b/Library/Homebrew/test/rubocops/version_spec.rb
index 45ac7ecf1e0e9..cf36fea0153da 100644
--- a/Library/Homebrew/test/rubocops/version_spec.rb
+++ b/Library/Homebrew/test/rubocops/version_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "rubocops/version"
diff --git a/Library/Homebrew/test/sandbox_spec.rb b/Library/Homebrew/test/sandbox_spec.rb
index f3b323eaf0415..10f4abde6c3c9 100644
--- a/Library/Homebrew/test/sandbox_spec.rb
+++ b/Library/Homebrew/test/sandbox_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "sandbox"
diff --git a/Library/Homebrew/test/search_spec.rb b/Library/Homebrew/test/search_spec.rb
index 0f3bfbe6a6fde..84377c4757194 100644
--- a/Library/Homebrew/test/search_spec.rb
+++ b/Library/Homebrew/test/search_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "search"
diff --git a/Library/Homebrew/test/searchable_spec.rb b/Library/Homebrew/test/searchable_spec.rb
index 6fdb4557d757b..f7e059ffb0a95 100644
--- a/Library/Homebrew/test/searchable_spec.rb
+++ b/Library/Homebrew/test/searchable_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "searchable"
diff --git a/Library/Homebrew/test/software_spec_spec.rb b/Library/Homebrew/test/software_spec_spec.rb
index 34278b48e4d52..965fca8cf240c 100644
--- a/Library/Homebrew/test/software_spec_spec.rb
+++ b/Library/Homebrew/test/software_spec_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "software_spec"
diff --git a/Library/Homebrew/test/spec_helper.rb b/Library/Homebrew/test/spec_helper.rb
index 406ffc7561305..dabc1816dea31 100644
--- a/Library/Homebrew/test/spec_helper.rb
+++ b/Library/Homebrew/test/spec_helper.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 if ENV["HOMEBREW_TESTS_COVERAGE"]
diff --git a/Library/Homebrew/test/string_spec.rb b/Library/Homebrew/test/string_spec.rb
index 646d53765a64f..0442c620a2205 100644
--- a/Library/Homebrew/test/string_spec.rb
+++ b/Library/Homebrew/test/string_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "extend/string"
diff --git a/Library/Homebrew/test/style_spec.rb b/Library/Homebrew/test/style_spec.rb
index abe5e23b8cfbc..d187cbc19d059 100644
--- a/Library/Homebrew/test/style_spec.rb
+++ b/Library/Homebrew/test/style_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "style"
diff --git a/Library/Homebrew/test/support/fixtures/failball.rb b/Library/Homebrew/test/support/fixtures/failball.rb
index 5ba1692eff287..e4a15344b36c1 100644
--- a/Library/Homebrew/test/support/fixtures/failball.rb
+++ b/Library/Homebrew/test/support/fixtures/failball.rb
@@ -1,3 +1,4 @@
+# typed: true
 # frozen_string_literal: true
 
 class Failball < Formula
diff --git a/Library/Homebrew/test/support/fixtures/testball.rb b/Library/Homebrew/test/support/fixtures/testball.rb
index 27ff8dafc027e..1a99de2914c0c 100644
--- a/Library/Homebrew/test/support/fixtures/testball.rb
+++ b/Library/Homebrew/test/support/fixtures/testball.rb
@@ -1,3 +1,4 @@
+# typed: true
 # frozen_string_literal: true
 
 class Testball < Formula
diff --git a/Library/Homebrew/test/support/fixtures/testball_bottle.rb b/Library/Homebrew/test/support/fixtures/testball_bottle.rb
index 76d8d7e7c0214..d3f159eaf9060 100644
--- a/Library/Homebrew/test/support/fixtures/testball_bottle.rb
+++ b/Library/Homebrew/test/support/fixtures/testball_bottle.rb
@@ -1,3 +1,4 @@
+# typed: true
 # frozen_string_literal: true
 
 class TestballBottle < Formula
diff --git a/Library/Homebrew/test/support/github_formatter.rb b/Library/Homebrew/test/support/github_formatter.rb
index 7010a4d93f925..6f019f9baff46 100644
--- a/Library/Homebrew/test/support/github_formatter.rb
+++ b/Library/Homebrew/test/support/github_formatter.rb
@@ -1,3 +1,4 @@
+# typed: true
 # frozen_string_literal: true
 
 require "rspec/core"
diff --git a/Library/Homebrew/test/support/helper/cask.rb b/Library/Homebrew/test/support/helper/cask.rb
index 940e80a4f9327..6dd863daab29f 100644
--- a/Library/Homebrew/test/support/helper/cask.rb
+++ b/Library/Homebrew/test/support/helper/cask.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "cask/cask_loader"
diff --git a/Library/Homebrew/test/support/helper/cask/fake_system_command.rb b/Library/Homebrew/test/support/helper/cask/fake_system_command.rb
index 47080e6419c35..2587e7bc52355 100644
--- a/Library/Homebrew/test/support/helper/cask/fake_system_command.rb
+++ b/Library/Homebrew/test/support/helper/cask/fake_system_command.rb
@@ -1,3 +1,4 @@
+# typed: true
 # frozen_string_literal: true
 
 def sudo(*args)
diff --git a/Library/Homebrew/test/support/helper/cask/install_helper.rb b/Library/Homebrew/test/support/helper/cask/install_helper.rb
index 19ef9594e0c77..18c083059ee97 100644
--- a/Library/Homebrew/test/support/helper/cask/install_helper.rb
+++ b/Library/Homebrew/test/support/helper/cask/install_helper.rb
@@ -1,3 +1,4 @@
+# typed: true
 # frozen_string_literal: true
 
 require "cask/installer"
diff --git a/Library/Homebrew/test/support/helper/cask/never_sudo_system_command.rb b/Library/Homebrew/test/support/helper/cask/never_sudo_system_command.rb
index be2570a0c3ed1..b5859c174eeef 100644
--- a/Library/Homebrew/test/support/helper/cask/never_sudo_system_command.rb
+++ b/Library/Homebrew/test/support/helper/cask/never_sudo_system_command.rb
@@ -1,3 +1,4 @@
+# typed: true
 # frozen_string_literal: true
 
 require "system_command"
diff --git a/Library/Homebrew/test/support/helper/cmd/brew-verify-formula-undefined.rb b/Library/Homebrew/test/support/helper/cmd/brew-verify-formula-undefined.rb
index 8be3998c18d99..eaa659e8ae52f 100755
--- a/Library/Homebrew/test/support/helper/cmd/brew-verify-formula-undefined.rb
+++ b/Library/Homebrew/test/support/helper/cmd/brew-verify-formula-undefined.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "cli/parser"
diff --git a/Library/Homebrew/test/support/helper/fixtures.rb b/Library/Homebrew/test/support/helper/fixtures.rb
index fc5cf48c8c370..2dd4b4c657395 100644
--- a/Library/Homebrew/test/support/helper/fixtures.rb
+++ b/Library/Homebrew/test/support/helper/fixtures.rb
@@ -1,3 +1,4 @@
+# typed: true
 # frozen_string_literal: true
 
 module Test
diff --git a/Library/Homebrew/test/support/helper/formula.rb b/Library/Homebrew/test/support/helper/formula.rb
index caf4a1c73a622..256ef05e54e4d 100644
--- a/Library/Homebrew/test/support/helper/formula.rb
+++ b/Library/Homebrew/test/support/helper/formula.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "formulary"
diff --git a/Library/Homebrew/test/support/helper/integration_mocks.rb b/Library/Homebrew/test/support/helper/integration_mocks.rb
index 2e4ec4b266529..245a2aef0eacb 100644
--- a/Library/Homebrew/test/support/helper/integration_mocks.rb
+++ b/Library/Homebrew/test/support/helper/integration_mocks.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 module Homebrew
diff --git a/Library/Homebrew/test/support/helper/mktmpdir.rb b/Library/Homebrew/test/support/helper/mktmpdir.rb
index 6cb369c4142c9..f6cc4282c9ee7 100644
--- a/Library/Homebrew/test/support/helper/mktmpdir.rb
+++ b/Library/Homebrew/test/support/helper/mktmpdir.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 module Test
diff --git a/Library/Homebrew/test/support/helper/output_as_tty.rb b/Library/Homebrew/test/support/helper/output_as_tty.rb
index ca7f4ca662f64..24b25fd89f822 100644
--- a/Library/Homebrew/test/support/helper/output_as_tty.rb
+++ b/Library/Homebrew/test/support/helper/output_as_tty.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "delegate"
diff --git a/Library/Homebrew/test/support/helper/spec/shared_context/homebrew_cask.rb b/Library/Homebrew/test/support/helper/spec/shared_context/homebrew_cask.rb
index db6836796f098..760bd801475fa 100644
--- a/Library/Homebrew/test/support/helper/spec/shared_context/homebrew_cask.rb
+++ b/Library/Homebrew/test/support/helper/spec/shared_context/homebrew_cask.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "cask/config"
diff --git a/Library/Homebrew/test/support/helper/spec/shared_context/integration_test.rb b/Library/Homebrew/test/support/helper/spec/shared_context/integration_test.rb
index aeebb8c14aabb..3d18361e9bd65 100644
--- a/Library/Homebrew/test/support/helper/spec/shared_context/integration_test.rb
+++ b/Library/Homebrew/test/support/helper/spec/shared_context/integration_test.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "open3"
diff --git a/Library/Homebrew/test/support/helper/spec/shared_examples/formulae_exist.rb b/Library/Homebrew/test/support/helper/spec/shared_examples/formulae_exist.rb
index b005657977a71..e52610016fc31 100644
--- a/Library/Homebrew/test/support/helper/spec/shared_examples/formulae_exist.rb
+++ b/Library/Homebrew/test/support/helper/spec/shared_examples/formulae_exist.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 shared_examples "formulae exist" do |array|
diff --git a/Library/Homebrew/test/support/lib/config.rb b/Library/Homebrew/test/support/lib/config.rb
index a9c6769f709eb..b68490628bf09 100644
--- a/Library/Homebrew/test/support/lib/config.rb
+++ b/Library/Homebrew/test/support/lib/config.rb
@@ -1,3 +1,4 @@
+# typed: true
 # frozen_string_literal: true
 
 raise "HOMEBREW_BREW_FILE was not exported! Please call bin/brew directly!" unless ENV["HOMEBREW_BREW_FILE"]
diff --git a/Library/Homebrew/test/support/no_seed_progress_formatter.rb b/Library/Homebrew/test/support/no_seed_progress_formatter.rb
index d6199bd9a3841..493883e8b9d1e 100644
--- a/Library/Homebrew/test/support/no_seed_progress_formatter.rb
+++ b/Library/Homebrew/test/support/no_seed_progress_formatter.rb
@@ -1,3 +1,4 @@
+# typed: true
 # frozen_string_literal: true
 
 require "rspec/core/formatters/progress_formatter"
diff --git a/Library/Homebrew/test/system_command_result_spec.rb b/Library/Homebrew/test/system_command_result_spec.rb
index bc48fcdd7590c..8d37dbf57e89a 100644
--- a/Library/Homebrew/test/system_command_result_spec.rb
+++ b/Library/Homebrew/test/system_command_result_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "system_command"
diff --git a/Library/Homebrew/test/system_command_spec.rb b/Library/Homebrew/test/system_command_spec.rb
index 5c5506eecd13e..fef1692deb25d 100644
--- a/Library/Homebrew/test/system_command_spec.rb
+++ b/Library/Homebrew/test/system_command_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 describe SystemCommand do
diff --git a/Library/Homebrew/test/tab_spec.rb b/Library/Homebrew/test/tab_spec.rb
index b4005db52d8d1..355a1c1838c86 100644
--- a/Library/Homebrew/test/tab_spec.rb
+++ b/Library/Homebrew/test/tab_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "tab"
diff --git a/Library/Homebrew/test/tap_spec.rb b/Library/Homebrew/test/tap_spec.rb
index d4263d126f89d..78db926675890 100644
--- a/Library/Homebrew/test/tap_spec.rb
+++ b/Library/Homebrew/test/tap_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 describe Tap do
diff --git a/Library/Homebrew/test/unpack_strategy/bazaar_spec.rb b/Library/Homebrew/test/unpack_strategy/bazaar_spec.rb
index 434a76a948f8d..0db95af39a557 100644
--- a/Library/Homebrew/test/unpack_strategy/bazaar_spec.rb
+++ b/Library/Homebrew/test/unpack_strategy/bazaar_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require_relative "shared_examples"
diff --git a/Library/Homebrew/test/unpack_strategy/bzip2_spec.rb b/Library/Homebrew/test/unpack_strategy/bzip2_spec.rb
index a81f15bab1e16..126985010d43c 100644
--- a/Library/Homebrew/test/unpack_strategy/bzip2_spec.rb
+++ b/Library/Homebrew/test/unpack_strategy/bzip2_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require_relative "shared_examples"
diff --git a/Library/Homebrew/test/unpack_strategy/cvs_spec.rb b/Library/Homebrew/test/unpack_strategy/cvs_spec.rb
index 8eebf17da5e06..2b9ebaa58df35 100644
--- a/Library/Homebrew/test/unpack_strategy/cvs_spec.rb
+++ b/Library/Homebrew/test/unpack_strategy/cvs_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require_relative "shared_examples"
diff --git a/Library/Homebrew/test/unpack_strategy/directory_spec.rb b/Library/Homebrew/test/unpack_strategy/directory_spec.rb
index dc321a464406f..ae12a37704429 100644
--- a/Library/Homebrew/test/unpack_strategy/directory_spec.rb
+++ b/Library/Homebrew/test/unpack_strategy/directory_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require_relative "shared_examples"
diff --git a/Library/Homebrew/test/unpack_strategy/dmg_spec.rb b/Library/Homebrew/test/unpack_strategy/dmg_spec.rb
index 8a3594f144def..7b30d119c4f59 100644
--- a/Library/Homebrew/test/unpack_strategy/dmg_spec.rb
+++ b/Library/Homebrew/test/unpack_strategy/dmg_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require_relative "shared_examples"
diff --git a/Library/Homebrew/test/unpack_strategy/git_spec.rb b/Library/Homebrew/test/unpack_strategy/git_spec.rb
index 738146a787e65..b3831b731dff6 100644
--- a/Library/Homebrew/test/unpack_strategy/git_spec.rb
+++ b/Library/Homebrew/test/unpack_strategy/git_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require_relative "shared_examples"
diff --git a/Library/Homebrew/test/unpack_strategy/gzip_spec.rb b/Library/Homebrew/test/unpack_strategy/gzip_spec.rb
index ebf4a493bd95e..0f85ad24dbce2 100644
--- a/Library/Homebrew/test/unpack_strategy/gzip_spec.rb
+++ b/Library/Homebrew/test/unpack_strategy/gzip_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require_relative "shared_examples"
diff --git a/Library/Homebrew/test/unpack_strategy/jar_spec.rb b/Library/Homebrew/test/unpack_strategy/jar_spec.rb
index f6da64b973889..042f9bf01a8c0 100644
--- a/Library/Homebrew/test/unpack_strategy/jar_spec.rb
+++ b/Library/Homebrew/test/unpack_strategy/jar_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require_relative "shared_examples"
diff --git a/Library/Homebrew/test/unpack_strategy/lha_spec.rb b/Library/Homebrew/test/unpack_strategy/lha_spec.rb
index e24a60a655181..18921910b8085 100644
--- a/Library/Homebrew/test/unpack_strategy/lha_spec.rb
+++ b/Library/Homebrew/test/unpack_strategy/lha_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require_relative "shared_examples"
diff --git a/Library/Homebrew/test/unpack_strategy/lzip_spec.rb b/Library/Homebrew/test/unpack_strategy/lzip_spec.rb
index a74b68add5108..cd4932c915492 100644
--- a/Library/Homebrew/test/unpack_strategy/lzip_spec.rb
+++ b/Library/Homebrew/test/unpack_strategy/lzip_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require_relative "shared_examples"
diff --git a/Library/Homebrew/test/unpack_strategy/mercurial_spec.rb b/Library/Homebrew/test/unpack_strategy/mercurial_spec.rb
index 76a28e27b0051..c29066ff78885 100644
--- a/Library/Homebrew/test/unpack_strategy/mercurial_spec.rb
+++ b/Library/Homebrew/test/unpack_strategy/mercurial_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require_relative "shared_examples"
diff --git a/Library/Homebrew/test/unpack_strategy/p7zip_spec.rb b/Library/Homebrew/test/unpack_strategy/p7zip_spec.rb
index c612b13f03ed7..09386a1771954 100644
--- a/Library/Homebrew/test/unpack_strategy/p7zip_spec.rb
+++ b/Library/Homebrew/test/unpack_strategy/p7zip_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require_relative "shared_examples"
diff --git a/Library/Homebrew/test/unpack_strategy/rar_spec.rb b/Library/Homebrew/test/unpack_strategy/rar_spec.rb
index 5e5e59333947e..9ddea401fb6b6 100644
--- a/Library/Homebrew/test/unpack_strategy/rar_spec.rb
+++ b/Library/Homebrew/test/unpack_strategy/rar_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require_relative "shared_examples"
diff --git a/Library/Homebrew/test/unpack_strategy/shared_examples.rb b/Library/Homebrew/test/unpack_strategy/shared_examples.rb
index 6f3caa475c845..3c034d0086102 100644
--- a/Library/Homebrew/test/unpack_strategy/shared_examples.rb
+++ b/Library/Homebrew/test/unpack_strategy/shared_examples.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "unpack_strategy"
diff --git a/Library/Homebrew/test/unpack_strategy/subversion_spec.rb b/Library/Homebrew/test/unpack_strategy/subversion_spec.rb
index 78795f94cc2f9..d1baca44bb541 100644
--- a/Library/Homebrew/test/unpack_strategy/subversion_spec.rb
+++ b/Library/Homebrew/test/unpack_strategy/subversion_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require_relative "shared_examples"
diff --git a/Library/Homebrew/test/unpack_strategy/tar_spec.rb b/Library/Homebrew/test/unpack_strategy/tar_spec.rb
index ae11929b32c45..078762a1247d8 100644
--- a/Library/Homebrew/test/unpack_strategy/tar_spec.rb
+++ b/Library/Homebrew/test/unpack_strategy/tar_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require_relative "shared_examples"
diff --git a/Library/Homebrew/test/unpack_strategy/uncompressed_spec.rb b/Library/Homebrew/test/unpack_strategy/uncompressed_spec.rb
index 8e8c5d9236d40..857ac134e6f6d 100644
--- a/Library/Homebrew/test/unpack_strategy/uncompressed_spec.rb
+++ b/Library/Homebrew/test/unpack_strategy/uncompressed_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require_relative "shared_examples"
diff --git a/Library/Homebrew/test/unpack_strategy/xar_spec.rb b/Library/Homebrew/test/unpack_strategy/xar_spec.rb
index f4f11389d1830..28870a2d78d7a 100644
--- a/Library/Homebrew/test/unpack_strategy/xar_spec.rb
+++ b/Library/Homebrew/test/unpack_strategy/xar_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require_relative "shared_examples"
diff --git a/Library/Homebrew/test/unpack_strategy/xz_spec.rb b/Library/Homebrew/test/unpack_strategy/xz_spec.rb
index ffc41369aee9c..f6befa95af293 100644
--- a/Library/Homebrew/test/unpack_strategy/xz_spec.rb
+++ b/Library/Homebrew/test/unpack_strategy/xz_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require_relative "shared_examples"
diff --git a/Library/Homebrew/test/unpack_strategy/zip_spec.rb b/Library/Homebrew/test/unpack_strategy/zip_spec.rb
index c579fff51c844..dd27c5de48adc 100644
--- a/Library/Homebrew/test/unpack_strategy/zip_spec.rb
+++ b/Library/Homebrew/test/unpack_strategy/zip_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require_relative "shared_examples"
diff --git a/Library/Homebrew/test/unpack_strategy_spec.rb b/Library/Homebrew/test/unpack_strategy_spec.rb
index bfcbc24216cff..055fe3c96ef7a 100644
--- a/Library/Homebrew/test/unpack_strategy_spec.rb
+++ b/Library/Homebrew/test/unpack_strategy_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 describe UnpackStrategy do
diff --git a/Library/Homebrew/test/utils/analytics_spec.rb b/Library/Homebrew/test/utils/analytics_spec.rb
index cca36c8360ba5..588c35d3b2118 100644
--- a/Library/Homebrew/test/utils/analytics_spec.rb
+++ b/Library/Homebrew/test/utils/analytics_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "utils/analytics"
diff --git a/Library/Homebrew/test/utils/bottles/bintray_spec.rb b/Library/Homebrew/test/utils/bottles/bintray_spec.rb
index 87a9a7c7ea781..eb960583375ec 100644
--- a/Library/Homebrew/test/utils/bottles/bintray_spec.rb
+++ b/Library/Homebrew/test/utils/bottles/bintray_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "utils/bottles"
diff --git a/Library/Homebrew/test/utils/bottles/bottles_spec.rb b/Library/Homebrew/test/utils/bottles/bottles_spec.rb
index 897bbb57fe19a..d3eacd60bc736 100644
--- a/Library/Homebrew/test/utils/bottles/bottles_spec.rb
+++ b/Library/Homebrew/test/utils/bottles/bottles_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "utils/bottles"
diff --git a/Library/Homebrew/test/utils/bottles/collector_spec.rb b/Library/Homebrew/test/utils/bottles/collector_spec.rb
index f83ca75ea8bde..3314db26d89b9 100644
--- a/Library/Homebrew/test/utils/bottles/collector_spec.rb
+++ b/Library/Homebrew/test/utils/bottles/collector_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "utils/bottles"
diff --git a/Library/Homebrew/test/utils/curl_spec.rb b/Library/Homebrew/test/utils/curl_spec.rb
index 544e57bc1b5d9..af153426b5a9f 100644
--- a/Library/Homebrew/test/utils/curl_spec.rb
+++ b/Library/Homebrew/test/utils/curl_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "utils/curl"
diff --git a/Library/Homebrew/test/utils/fork_spec.rb b/Library/Homebrew/test/utils/fork_spec.rb
index fa1d27fb3099f..330ffbeba8e9d 100644
--- a/Library/Homebrew/test/utils/fork_spec.rb
+++ b/Library/Homebrew/test/utils/fork_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "utils/fork"
diff --git a/Library/Homebrew/test/utils/git_spec.rb b/Library/Homebrew/test/utils/git_spec.rb
index f03f614379403..0ec9310910a54 100644
--- a/Library/Homebrew/test/utils/git_spec.rb
+++ b/Library/Homebrew/test/utils/git_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "utils/git"
diff --git a/Library/Homebrew/test/utils/github/actions_spec.rb b/Library/Homebrew/test/utils/github/actions_spec.rb
index 1951d5e56fd30..290e0f85501b5 100644
--- a/Library/Homebrew/test/utils/github/actions_spec.rb
+++ b/Library/Homebrew/test/utils/github/actions_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "utils/github/actions"
diff --git a/Library/Homebrew/test/utils/github_spec.rb b/Library/Homebrew/test/utils/github_spec.rb
index 6c7739ff7100d..4e785e7dab928 100644
--- a/Library/Homebrew/test/utils/github_spec.rb
+++ b/Library/Homebrew/test/utils/github_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "utils/github"
diff --git a/Library/Homebrew/test/utils/livecheck_formula_spec.rb b/Library/Homebrew/test/utils/livecheck_formula_spec.rb
index 41ffe71132d3e..7f8495b343698 100644
--- a/Library/Homebrew/test/utils/livecheck_formula_spec.rb
+++ b/Library/Homebrew/test/utils/livecheck_formula_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "utils/livecheck_formula"
diff --git a/Library/Homebrew/test/utils/popen_spec.rb b/Library/Homebrew/test/utils/popen_spec.rb
index dcce91d8b46b0..7ea5474e7a0a9 100644
--- a/Library/Homebrew/test/utils/popen_spec.rb
+++ b/Library/Homebrew/test/utils/popen_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "utils/popen"
diff --git a/Library/Homebrew/test/utils/repology_spec.rb b/Library/Homebrew/test/utils/repology_spec.rb
index d2fa37b05ac21..acacade36088a 100644
--- a/Library/Homebrew/test/utils/repology_spec.rb
+++ b/Library/Homebrew/test/utils/repology_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "utils/repology"
diff --git a/Library/Homebrew/test/utils/shell_spec.rb b/Library/Homebrew/test/utils/shell_spec.rb
index d4844080bd294..61c24e745f28f 100644
--- a/Library/Homebrew/test/utils/shell_spec.rb
+++ b/Library/Homebrew/test/utils/shell_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "utils/shell"
diff --git a/Library/Homebrew/test/utils/spdx_spec.rb b/Library/Homebrew/test/utils/spdx_spec.rb
index 01c02171dcfd9..5530a27b4e445 100644
--- a/Library/Homebrew/test/utils/spdx_spec.rb
+++ b/Library/Homebrew/test/utils/spdx_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "utils/spdx"
diff --git a/Library/Homebrew/test/utils/svn_spec.rb b/Library/Homebrew/test/utils/svn_spec.rb
index da6ec91ec7749..f4ec8b7f369c4 100644
--- a/Library/Homebrew/test/utils/svn_spec.rb
+++ b/Library/Homebrew/test/utils/svn_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "utils/svn"
diff --git a/Library/Homebrew/test/utils/tar_spec.rb b/Library/Homebrew/test/utils/tar_spec.rb
index b3569cad8017d..0b7ff0ee58348 100644
--- a/Library/Homebrew/test/utils/tar_spec.rb
+++ b/Library/Homebrew/test/utils/tar_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "utils/tar"
diff --git a/Library/Homebrew/test/utils/tty_spec.rb b/Library/Homebrew/test/utils/tty_spec.rb
index 32b259e2b80a7..6f728041f05ae 100644
--- a/Library/Homebrew/test/utils/tty_spec.rb
+++ b/Library/Homebrew/test/utils/tty_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 describe Tty do
diff --git a/Library/Homebrew/test/utils/user_spec.rb b/Library/Homebrew/test/utils/user_spec.rb
index c26862dc4163e..53c7089252b83 100644
--- a/Library/Homebrew/test/utils/user_spec.rb
+++ b/Library/Homebrew/test/utils/user_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "utils/user"
diff --git a/Library/Homebrew/test/utils_spec.rb b/Library/Homebrew/test/utils_spec.rb
index 977852b6b28db..efaf326603164 100644
--- a/Library/Homebrew/test/utils_spec.rb
+++ b/Library/Homebrew/test/utils_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 describe "globally-scoped helper methods" do
diff --git a/Library/Homebrew/test/version_spec.rb b/Library/Homebrew/test/version_spec.rb
index 04f4cdf3bc6cd..ab18e0c6460b4 100644
--- a/Library/Homebrew/test/version_spec.rb
+++ b/Library/Homebrew/test/version_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "version"
diff --git a/Library/Homebrew/test/x11_requirement_spec.rb b/Library/Homebrew/test/x11_requirement_spec.rb
index 436e0c15effc3..4076f1a553f17 100644
--- a/Library/Homebrew/test/x11_requirement_spec.rb
+++ b/Library/Homebrew/test/x11_requirement_spec.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "cli/args"
diff --git a/Library/Homebrew/unpack_strategy.rb b/Library/Homebrew/unpack_strategy.rb
index 9540b4029bef5..f76069f3b9317 100644
--- a/Library/Homebrew/unpack_strategy.rb
+++ b/Library/Homebrew/unpack_strategy.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 # Module containing all available strategies for unpacking archives.
diff --git a/Library/Homebrew/unpack_strategy/air.rb b/Library/Homebrew/unpack_strategy/air.rb
index 47a2a7f6b9026..8d6e73cd1ca6e 100644
--- a/Library/Homebrew/unpack_strategy/air.rb
+++ b/Library/Homebrew/unpack_strategy/air.rb
@@ -1,3 +1,4 @@
+# typed: true
 # frozen_string_literal: true
 
 module UnpackStrategy
diff --git a/Library/Homebrew/unpack_strategy/bazaar.rb b/Library/Homebrew/unpack_strategy/bazaar.rb
index 3bb3c4d6b10fa..f50957a124d98 100644
--- a/Library/Homebrew/unpack_strategy/bazaar.rb
+++ b/Library/Homebrew/unpack_strategy/bazaar.rb
@@ -1,3 +1,4 @@
+# typed: true
 # frozen_string_literal: true
 
 require_relative "directory"
diff --git a/Library/Homebrew/unpack_strategy/bzip2.rb b/Library/Homebrew/unpack_strategy/bzip2.rb
index 9eff311a83765..79d25aaa5b2b2 100644
--- a/Library/Homebrew/unpack_strategy/bzip2.rb
+++ b/Library/Homebrew/unpack_strategy/bzip2.rb
@@ -1,3 +1,4 @@
+# typed: true
 # frozen_string_literal: true
 
 module UnpackStrategy
diff --git a/Library/Homebrew/unpack_strategy/cab.rb b/Library/Homebrew/unpack_strategy/cab.rb
index f36fa1f580e80..00b0831288e96 100644
--- a/Library/Homebrew/unpack_strategy/cab.rb
+++ b/Library/Homebrew/unpack_strategy/cab.rb
@@ -1,3 +1,4 @@
+# typed: true
 # frozen_string_literal: true
 
 module UnpackStrategy
diff --git a/Library/Homebrew/unpack_strategy/compress.rb b/Library/Homebrew/unpack_strategy/compress.rb
index 668272df85fba..8e83fa057a537 100644
--- a/Library/Homebrew/unpack_strategy/compress.rb
+++ b/Library/Homebrew/unpack_strategy/compress.rb
@@ -1,3 +1,4 @@
+# typed: true
 # frozen_string_literal: true
 
 require_relative "tar"
diff --git a/Library/Homebrew/unpack_strategy/cvs.rb b/Library/Homebrew/unpack_strategy/cvs.rb
index 36e4d506e4b19..66c2f17f8fb34 100644
--- a/Library/Homebrew/unpack_strategy/cvs.rb
+++ b/Library/Homebrew/unpack_strategy/cvs.rb
@@ -1,3 +1,4 @@
+# typed: true
 # frozen_string_literal: true
 
 require_relative "directory"
diff --git a/Library/Homebrew/unpack_strategy/directory.rb b/Library/Homebrew/unpack_strategy/directory.rb
index 06d8dd98884ec..0e8c68b593624 100644
--- a/Library/Homebrew/unpack_strategy/directory.rb
+++ b/Library/Homebrew/unpack_strategy/directory.rb
@@ -1,3 +1,4 @@
+# typed: true
 # frozen_string_literal: true
 
 module UnpackStrategy
diff --git a/Library/Homebrew/unpack_strategy/dmg.rb b/Library/Homebrew/unpack_strategy/dmg.rb
index 234dd802b2059..1d2e8de5ce4a1 100644
--- a/Library/Homebrew/unpack_strategy/dmg.rb
+++ b/Library/Homebrew/unpack_strategy/dmg.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "tempfile"
diff --git a/Library/Homebrew/unpack_strategy/executable.rb b/Library/Homebrew/unpack_strategy/executable.rb
index 57e99908f01b6..a592cce52f537 100644
--- a/Library/Homebrew/unpack_strategy/executable.rb
+++ b/Library/Homebrew/unpack_strategy/executable.rb
@@ -1,3 +1,4 @@
+# typed: true
 # frozen_string_literal: true
 
 require_relative "uncompressed"
diff --git a/Library/Homebrew/unpack_strategy/fossil.rb b/Library/Homebrew/unpack_strategy/fossil.rb
index ea7f2216b84e2..c8f165fdd609b 100644
--- a/Library/Homebrew/unpack_strategy/fossil.rb
+++ b/Library/Homebrew/unpack_strategy/fossil.rb
@@ -1,3 +1,4 @@
+# typed: true
 # frozen_string_literal: true
 
 module UnpackStrategy
diff --git a/Library/Homebrew/unpack_strategy/generic_unar.rb b/Library/Homebrew/unpack_strategy/generic_unar.rb
index 5458141748c25..7b0a0a53bdd84 100644
--- a/Library/Homebrew/unpack_strategy/generic_unar.rb
+++ b/Library/Homebrew/unpack_strategy/generic_unar.rb
@@ -1,3 +1,4 @@
+# typed: true
 # frozen_string_literal: true
 
 module UnpackStrategy
diff --git a/Library/Homebrew/unpack_strategy/git.rb b/Library/Homebrew/unpack_strategy/git.rb
index c704f13a47e8b..23257c050273d 100644
--- a/Library/Homebrew/unpack_strategy/git.rb
+++ b/Library/Homebrew/unpack_strategy/git.rb
@@ -1,3 +1,4 @@
+# typed: true
 # frozen_string_literal: true
 
 require_relative "directory"
diff --git a/Library/Homebrew/unpack_strategy/gzip.rb b/Library/Homebrew/unpack_strategy/gzip.rb
index 8f576788d59f5..4797fbaa24621 100644
--- a/Library/Homebrew/unpack_strategy/gzip.rb
+++ b/Library/Homebrew/unpack_strategy/gzip.rb
@@ -1,3 +1,4 @@
+# typed: true
 # frozen_string_literal: true
 
 module UnpackStrategy
diff --git a/Library/Homebrew/unpack_strategy/jar.rb b/Library/Homebrew/unpack_strategy/jar.rb
index 8fc3a70476c2e..ee05a876a185e 100644
--- a/Library/Homebrew/unpack_strategy/jar.rb
+++ b/Library/Homebrew/unpack_strategy/jar.rb
@@ -1,3 +1,4 @@
+# typed: true
 # frozen_string_literal: true
 
 require_relative "uncompressed"
diff --git a/Library/Homebrew/unpack_strategy/lha.rb b/Library/Homebrew/unpack_strategy/lha.rb
index d3bfcaf87e0f3..70c3e5f70927b 100644
--- a/Library/Homebrew/unpack_strategy/lha.rb
+++ b/Library/Homebrew/unpack_strategy/lha.rb
@@ -1,3 +1,4 @@
+# typed: true
 # frozen_string_literal: true
 
 module UnpackStrategy
diff --git a/Library/Homebrew/unpack_strategy/lua_rock.rb b/Library/Homebrew/unpack_strategy/lua_rock.rb
index 8517b140e5a23..1336b856decf7 100644
--- a/Library/Homebrew/unpack_strategy/lua_rock.rb
+++ b/Library/Homebrew/unpack_strategy/lua_rock.rb
@@ -1,3 +1,4 @@
+# typed: true
 # frozen_string_literal: true
 
 require_relative "uncompressed"
diff --git a/Library/Homebrew/unpack_strategy/lzip.rb b/Library/Homebrew/unpack_strategy/lzip.rb
index 687917cea4bb7..a27663e4d5772 100644
--- a/Library/Homebrew/unpack_strategy/lzip.rb
+++ b/Library/Homebrew/unpack_strategy/lzip.rb
@@ -1,3 +1,4 @@
+# typed: true
 # frozen_string_literal: true
 
 module UnpackStrategy
diff --git a/Library/Homebrew/unpack_strategy/lzma.rb b/Library/Homebrew/unpack_strategy/lzma.rb
index 006fcfb7414ee..e14de8e993255 100644
--- a/Library/Homebrew/unpack_strategy/lzma.rb
+++ b/Library/Homebrew/unpack_strategy/lzma.rb
@@ -1,3 +1,4 @@
+# typed: true
 # frozen_string_literal: true
 
 module UnpackStrategy
diff --git a/Library/Homebrew/unpack_strategy/mercurial.rb b/Library/Homebrew/unpack_strategy/mercurial.rb
index 7e0d3b64d28da..4538c8e8d9000 100644
--- a/Library/Homebrew/unpack_strategy/mercurial.rb
+++ b/Library/Homebrew/unpack_strategy/mercurial.rb
@@ -1,3 +1,4 @@
+# typed: true
 # frozen_string_literal: true
 
 require_relative "directory"
diff --git a/Library/Homebrew/unpack_strategy/microsoft_office_xml.rb b/Library/Homebrew/unpack_strategy/microsoft_office_xml.rb
index 8c3463be0840f..5d97e6f2226af 100644
--- a/Library/Homebrew/unpack_strategy/microsoft_office_xml.rb
+++ b/Library/Homebrew/unpack_strategy/microsoft_office_xml.rb
@@ -1,3 +1,4 @@
+# typed: true
 # frozen_string_literal: true
 
 require_relative "uncompressed"
diff --git a/Library/Homebrew/unpack_strategy/otf.rb b/Library/Homebrew/unpack_strategy/otf.rb
index 17b55ed7a653b..1a0538d9428b8 100644
--- a/Library/Homebrew/unpack_strategy/otf.rb
+++ b/Library/Homebrew/unpack_strategy/otf.rb
@@ -1,3 +1,4 @@
+# typed: true
 # frozen_string_literal: true
 
 require_relative "uncompressed"
diff --git a/Library/Homebrew/unpack_strategy/p7zip.rb b/Library/Homebrew/unpack_strategy/p7zip.rb
index df779331912c1..5aca009f538d8 100644
--- a/Library/Homebrew/unpack_strategy/p7zip.rb
+++ b/Library/Homebrew/unpack_strategy/p7zip.rb
@@ -1,3 +1,4 @@
+# typed: true
 # frozen_string_literal: true
 
 module UnpackStrategy
diff --git a/Library/Homebrew/unpack_strategy/pax.rb b/Library/Homebrew/unpack_strategy/pax.rb
index 89138e57798b9..e914d41baf430 100644
--- a/Library/Homebrew/unpack_strategy/pax.rb
+++ b/Library/Homebrew/unpack_strategy/pax.rb
@@ -1,3 +1,4 @@
+# typed: true
 # frozen_string_literal: true
 
 module UnpackStrategy
diff --git a/Library/Homebrew/unpack_strategy/pkg.rb b/Library/Homebrew/unpack_strategy/pkg.rb
index 8dad4a4436229..20bf5057e816e 100644
--- a/Library/Homebrew/unpack_strategy/pkg.rb
+++ b/Library/Homebrew/unpack_strategy/pkg.rb
@@ -1,3 +1,4 @@
+# typed: true
 # frozen_string_literal: true
 
 require_relative "uncompressed"
diff --git a/Library/Homebrew/unpack_strategy/rar.rb b/Library/Homebrew/unpack_strategy/rar.rb
index 5863b0742285f..71e2dd66a2006 100644
--- a/Library/Homebrew/unpack_strategy/rar.rb
+++ b/Library/Homebrew/unpack_strategy/rar.rb
@@ -1,3 +1,4 @@
+# typed: true
 # frozen_string_literal: true
 
 module UnpackStrategy
diff --git a/Library/Homebrew/unpack_strategy/self_extracting_executable.rb b/Library/Homebrew/unpack_strategy/self_extracting_executable.rb
index 9de9120b023de..c74166d77194c 100644
--- a/Library/Homebrew/unpack_strategy/self_extracting_executable.rb
+++ b/Library/Homebrew/unpack_strategy/self_extracting_executable.rb
@@ -1,3 +1,4 @@
+# typed: true
 # frozen_string_literal: true
 
 require_relative "generic_unar"
diff --git a/Library/Homebrew/unpack_strategy/sit.rb b/Library/Homebrew/unpack_strategy/sit.rb
index 5ec16b48ab320..5fabbbbfc8854 100644
--- a/Library/Homebrew/unpack_strategy/sit.rb
+++ b/Library/Homebrew/unpack_strategy/sit.rb
@@ -1,3 +1,4 @@
+# typed: true
 # frozen_string_literal: true
 
 require_relative "generic_unar"
diff --git a/Library/Homebrew/unpack_strategy/subversion.rb b/Library/Homebrew/unpack_strategy/subversion.rb
index 0c90b36605a72..dd3355825b199 100644
--- a/Library/Homebrew/unpack_strategy/subversion.rb
+++ b/Library/Homebrew/unpack_strategy/subversion.rb
@@ -1,3 +1,4 @@
+# typed: true
 # frozen_string_literal: true
 
 require_relative "directory"
diff --git a/Library/Homebrew/unpack_strategy/tar.rb b/Library/Homebrew/unpack_strategy/tar.rb
index 25c30973dd89f..7e7b407bcd3a4 100644
--- a/Library/Homebrew/unpack_strategy/tar.rb
+++ b/Library/Homebrew/unpack_strategy/tar.rb
@@ -1,3 +1,4 @@
+# typed: true
 # frozen_string_literal: true
 
 module UnpackStrategy
diff --git a/Library/Homebrew/unpack_strategy/ttf.rb b/Library/Homebrew/unpack_strategy/ttf.rb
index 54c6a6bd8273f..b45755a428cdc 100644
--- a/Library/Homebrew/unpack_strategy/ttf.rb
+++ b/Library/Homebrew/unpack_strategy/ttf.rb
@@ -1,3 +1,4 @@
+# typed: true
 # frozen_string_literal: true
 
 require_relative "uncompressed"
diff --git a/Library/Homebrew/unpack_strategy/uncompressed.rb b/Library/Homebrew/unpack_strategy/uncompressed.rb
index ea7f943a20451..1c869d998e732 100644
--- a/Library/Homebrew/unpack_strategy/uncompressed.rb
+++ b/Library/Homebrew/unpack_strategy/uncompressed.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 module UnpackStrategy
diff --git a/Library/Homebrew/unpack_strategy/xar.rb b/Library/Homebrew/unpack_strategy/xar.rb
index 69422eb660053..2f5f4794a3ba6 100644
--- a/Library/Homebrew/unpack_strategy/xar.rb
+++ b/Library/Homebrew/unpack_strategy/xar.rb
@@ -1,3 +1,4 @@
+# typed: true
 # frozen_string_literal: true
 
 module UnpackStrategy
diff --git a/Library/Homebrew/unpack_strategy/xz.rb b/Library/Homebrew/unpack_strategy/xz.rb
index 29ac0c182d883..86f50d2a38a99 100644
--- a/Library/Homebrew/unpack_strategy/xz.rb
+++ b/Library/Homebrew/unpack_strategy/xz.rb
@@ -1,3 +1,4 @@
+# typed: true
 # frozen_string_literal: true
 
 module UnpackStrategy
diff --git a/Library/Homebrew/unpack_strategy/zip.rb b/Library/Homebrew/unpack_strategy/zip.rb
index e58e556c7c68c..09db337f84e29 100644
--- a/Library/Homebrew/unpack_strategy/zip.rb
+++ b/Library/Homebrew/unpack_strategy/zip.rb
@@ -1,3 +1,4 @@
+# typed: true
 # frozen_string_literal: true
 
 module UnpackStrategy
diff --git a/Library/Homebrew/upgrade.rb b/Library/Homebrew/upgrade.rb
index 0dbd0d1334d49..82f258eee4b3d 100644
--- a/Library/Homebrew/upgrade.rb
+++ b/Library/Homebrew/upgrade.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "reinstall"
diff --git a/Library/Homebrew/utils.rb b/Library/Homebrew/utils.rb
index e56867e16ffba..985a294bece82 100644
--- a/Library/Homebrew/utils.rb
+++ b/Library/Homebrew/utils.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "utils/analytics"
diff --git a/Library/Homebrew/utils/analytics.rb b/Library/Homebrew/utils/analytics.rb
index c6c1c9b8f382b..9524db7218cd3 100644
--- a/Library/Homebrew/utils/analytics.rb
+++ b/Library/Homebrew/utils/analytics.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "erb"
diff --git a/Library/Homebrew/utils/bottles.rb b/Library/Homebrew/utils/bottles.rb
index ec47aa0c94165..1b8ee163e1ab7 100644
--- a/Library/Homebrew/utils/bottles.rb
+++ b/Library/Homebrew/utils/bottles.rb
@@ -1,3 +1,4 @@
+# typed: true
 # frozen_string_literal: true
 
 require "tab"
diff --git a/Library/Homebrew/utils/curl.rb b/Library/Homebrew/utils/curl.rb
index 4f517cc8de338..db53efb9ee55c 100644
--- a/Library/Homebrew/utils/curl.rb
+++ b/Library/Homebrew/utils/curl.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "open3"
diff --git a/Library/Homebrew/utils/fork.rb b/Library/Homebrew/utils/fork.rb
index 6427193ce8459..f7c16566c0d9d 100644
--- a/Library/Homebrew/utils/fork.rb
+++ b/Library/Homebrew/utils/fork.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "fcntl"
diff --git a/Library/Homebrew/utils/formatter.rb b/Library/Homebrew/utils/formatter.rb
index 60e88c60e1c63..7835e93f281db 100644
--- a/Library/Homebrew/utils/formatter.rb
+++ b/Library/Homebrew/utils/formatter.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "utils/tty"
diff --git a/Library/Homebrew/utils/gems.rb b/Library/Homebrew/utils/gems.rb
index 0a98b06728069..cdb688b5ac16a 100644
--- a/Library/Homebrew/utils/gems.rb
+++ b/Library/Homebrew/utils/gems.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 # Never `require` anything in this file (except English). It needs to be able to
diff --git a/Library/Homebrew/utils/git.rb b/Library/Homebrew/utils/git.rb
index ad1ebe7744569..e2f592d431f38 100644
--- a/Library/Homebrew/utils/git.rb
+++ b/Library/Homebrew/utils/git.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 module Utils
diff --git a/Library/Homebrew/utils/github.rb b/Library/Homebrew/utils/github.rb
index f9605c0708a19..b18a203d112ec 100644
--- a/Library/Homebrew/utils/github.rb
+++ b/Library/Homebrew/utils/github.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "tempfile"
diff --git a/Library/Homebrew/utils/github/actions.rb b/Library/Homebrew/utils/github/actions.rb
index 111a9d6ab23c6..3dc7bf64019a9 100644
--- a/Library/Homebrew/utils/github/actions.rb
+++ b/Library/Homebrew/utils/github/actions.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "utils/tty"
diff --git a/Library/Homebrew/utils/inreplace.rb b/Library/Homebrew/utils/inreplace.rb
index ae3489b6c8b75..9d94ae0a813df 100644
--- a/Library/Homebrew/utils/inreplace.rb
+++ b/Library/Homebrew/utils/inreplace.rb
@@ -1,3 +1,4 @@
+# typed: true
 # frozen_string_literal: true
 
 module Utils
diff --git a/Library/Homebrew/utils/link.rb b/Library/Homebrew/utils/link.rb
index 8b3c6bb37e96b..8078390f60b39 100644
--- a/Library/Homebrew/utils/link.rb
+++ b/Library/Homebrew/utils/link.rb
@@ -1,3 +1,4 @@
+# typed: true
 # frozen_string_literal: true
 
 module Utils
diff --git a/Library/Homebrew/utils/livecheck_formula.rb b/Library/Homebrew/utils/livecheck_formula.rb
index 25dc1c9940ffc..bd08714def0d7 100644
--- a/Library/Homebrew/utils/livecheck_formula.rb
+++ b/Library/Homebrew/utils/livecheck_formula.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 # Helper module for parsing output of `brew livecheck`.
diff --git a/Library/Homebrew/utils/popen.rb b/Library/Homebrew/utils/popen.rb
index eac4823c64c90..b721b3191caa0 100644
--- a/Library/Homebrew/utils/popen.rb
+++ b/Library/Homebrew/utils/popen.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 module Utils
diff --git a/Library/Homebrew/utils/pypi.rb b/Library/Homebrew/utils/pypi.rb
index eda3f66afcb2d..d9bb621bad1ac 100644
--- a/Library/Homebrew/utils/pypi.rb
+++ b/Library/Homebrew/utils/pypi.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 # Helper functions for updating PyPi resources.
diff --git a/Library/Homebrew/utils/repology.rb b/Library/Homebrew/utils/repology.rb
index 7476b6b8439c0..f1a017334b698 100644
--- a/Library/Homebrew/utils/repology.rb
+++ b/Library/Homebrew/utils/repology.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "utils/curl"
diff --git a/Library/Homebrew/utils/ruby_check_version_script.rb b/Library/Homebrew/utils/ruby_check_version_script.rb
index 3b607cdb201c9..fc8e483b20f10 100755
--- a/Library/Homebrew/utils/ruby_check_version_script.rb
+++ b/Library/Homebrew/utils/ruby_check_version_script.rb
@@ -1,4 +1,5 @@
 #!/usr/bin/env ruby --enable-frozen-string-literal --disable=gems,did_you_mean,rubyopt
+# typed: true
 # frozen_string_literal: true
 
 HOMEBREW_REQUIRED_RUBY_VERSION = ARGV.first.freeze
diff --git a/Library/Homebrew/utils/shared_audits.rb b/Library/Homebrew/utils/shared_audits.rb
index 0b956b88e0e92..694f659804485 100644
--- a/Library/Homebrew/utils/shared_audits.rb
+++ b/Library/Homebrew/utils/shared_audits.rb
@@ -1,3 +1,4 @@
+# typed: true
 # frozen_string_literal: true
 
 require "utils/curl"
diff --git a/Library/Homebrew/utils/shebang.rb b/Library/Homebrew/utils/shebang.rb
index 3e126746916da..762ddf5804216 100644
--- a/Library/Homebrew/utils/shebang.rb
+++ b/Library/Homebrew/utils/shebang.rb
@@ -1,3 +1,4 @@
+# typed: true
 # frozen_string_literal: true
 
 module Utils
diff --git a/Library/Homebrew/utils/shell.rb b/Library/Homebrew/utils/shell.rb
index d8e77a8dd906d..4d9af01ff123b 100644
--- a/Library/Homebrew/utils/shell.rb
+++ b/Library/Homebrew/utils/shell.rb
@@ -1,3 +1,4 @@
+# typed: true
 # frozen_string_literal: true
 
 module Utils
diff --git a/Library/Homebrew/utils/spdx.rb b/Library/Homebrew/utils/spdx.rb
index 9420e343d3b9d..64467c291e9b2 100644
--- a/Library/Homebrew/utils/spdx.rb
+++ b/Library/Homebrew/utils/spdx.rb
@@ -1,3 +1,4 @@
+# typed: true
 # frozen_string_literal: true
 
 require "utils/github"
diff --git a/Library/Homebrew/utils/svn.rb b/Library/Homebrew/utils/svn.rb
index 1492b08319839..239a63ca6da65 100644
--- a/Library/Homebrew/utils/svn.rb
+++ b/Library/Homebrew/utils/svn.rb
@@ -1,3 +1,4 @@
+# typed: true
 # frozen_string_literal: true
 
 require "system_command"
diff --git a/Library/Homebrew/utils/tar.rb b/Library/Homebrew/utils/tar.rb
index c60c834da41d9..df29bf9adb052 100644
--- a/Library/Homebrew/utils/tar.rb
+++ b/Library/Homebrew/utils/tar.rb
@@ -1,3 +1,4 @@
+# typed: true
 # frozen_string_literal: true
 
 module Utils
diff --git a/Library/Homebrew/utils/tty.rb b/Library/Homebrew/utils/tty.rb
index 774d1933be72f..3360f99cb2d0d 100644
--- a/Library/Homebrew/utils/tty.rb
+++ b/Library/Homebrew/utils/tty.rb
@@ -1,3 +1,4 @@
+# typed: true
 # frozen_string_literal: true
 
 # Various helper functions for interacting with TTYs.
diff --git a/Library/Homebrew/utils/user.rb b/Library/Homebrew/utils/user.rb
index d40a7b607293d..0973a95be4e92 100644
--- a/Library/Homebrew/utils/user.rb
+++ b/Library/Homebrew/utils/user.rb
@@ -1,3 +1,4 @@
+# typed: true
 # frozen_string_literal: true
 
 require "delegate"
diff --git a/Library/Homebrew/version.rb b/Library/Homebrew/version.rb
index cb1edd4e74876..4c22d2f28c784 100644
--- a/Library/Homebrew/version.rb
+++ b/Library/Homebrew/version.rb
@@ -1,3 +1,4 @@
+# typed: false
 # frozen_string_literal: true
 
 require "version/null"
diff --git a/Library/Homebrew/version/null.rb b/Library/Homebrew/version/null.rb
index 7b63523b43c44..f2b74a35e4863 100644
--- a/Library/Homebrew/version/null.rb
+++ b/Library/Homebrew/version/null.rb
@@ -1,3 +1,4 @@
+# typed: true
 # frozen_string_literal: true
 
 class Version
diff --git a/Library/add-typed.rb b/Library/add-typed.rb
new file mode 100755
index 0000000000000..6860b9e7b212c
--- /dev/null
+++ b/Library/add-typed.rb
@@ -0,0 +1,27 @@
+#!/usr/bin/env ruby
+
+require 'pathname'
+require 'open3'
+
+
+Dir.chdir "#{__dir__}/Homebrew"
+
+files = Pathname.glob("**/*.rb").reject { |path| path.to_s.start_with?("vendor/") }
+
+files.each do |file|
+
+  content = file.read
+
+  if content.start_with?("# typed: ")
+    puts "Already typed: #{file}"
+    next
+  end
+
+  ['strict', 'true', 'false', 'ignore'].each do |level|
+    puts "Trying #{file} with level #{level}."
+    file.write "# typed: #{level}\n#{content.strip}\n"
+
+    output, status = Open3.capture2e('brew', 'typecheck')
+    break if status.success?
+  end
+end

From 318091cccc7d804c790718a3267c982199929ecd Mon Sep 17 00:00:00 2001
From: Markus Reiter <me@reitermark.us>
Date: Sat, 10 Oct 2020 15:04:46 +0200
Subject: [PATCH 02/15] Move `StringInreplaceExtension` into separate file.

---
 Library/Homebrew/extend/string.rb             |  52 +-------
 .../Homebrew/sorbet/rbi/utils/inreplace.rbi   |  29 -----
 Library/Homebrew/test/string_spec.rb          |  17 ---
 Library/Homebrew/test/utils/inreplace_spec.rb |  56 ++++++++
 .../string_inreplace_extension_spec.rb}       | 120 ++++++------------
 Library/Homebrew/utils/inreplace.rb           |  17 ++-
 .../utils/string_inreplace_extension.rb       |  72 +++++++++++
 7 files changed, 180 insertions(+), 183 deletions(-)
 delete mode 100644 Library/Homebrew/sorbet/rbi/utils/inreplace.rbi
 delete mode 100644 Library/Homebrew/test/string_spec.rb
 create mode 100644 Library/Homebrew/test/utils/inreplace_spec.rb
 rename Library/Homebrew/test/{inreplace_spec.rb => utils/string_inreplace_extension_spec.rb} (59%)
 create mode 100644 Library/Homebrew/utils/string_inreplace_extension.rb

diff --git a/Library/Homebrew/extend/string.rb b/Library/Homebrew/extend/string.rb
index d68d67897089c..21105e71f4e8e 100644
--- a/Library/Homebrew/extend/string.rb
+++ b/Library/Homebrew/extend/string.rb
@@ -1,54 +1,4 @@
-# typed: false
+# typed: strict
 # frozen_string_literal: true
 
 require "active_support/core_ext/object/blank"
-
-# Used by the inreplace function (in `utils.rb`).
-class StringInreplaceExtension
-  attr_accessor :errors, :inreplace_string
-
-  def initialize(str)
-    @inreplace_string = str
-    @errors = []
-  end
-
-  def self.extended(str)
-    str.errors = []
-  end
-
-  def sub!(before, after)
-    result = inreplace_string.sub!(before, after)
-    errors << "expected replacement of #{before.inspect} with #{after.inspect}" unless result
-    result
-  end
-
-  # Warn if nothing was replaced
-  def gsub!(before, after, audit_result = true) # rubocop:disable Style/OptionalBooleanParameter
-    result = inreplace_string.gsub!(before, after)
-    errors << "expected replacement of #{before.inspect} with #{after.inspect}" if audit_result && result.nil?
-    result
-  end
-
-  # Looks for Makefile style variable definitions and replaces the
-  # value with "new_value", or removes the definition entirely.
-  def change_make_var!(flag, new_value)
-    return if gsub!(/^#{Regexp.escape(flag)}[ \t]*[\\?+:!]?=[ \t]*((?:.*\\\n)*.*)$/, "#{flag}=#{new_value}", false)
-
-    errors << "expected to change #{flag.inspect} to #{new_value.inspect}"
-  end
-
-  # Removes variable assignments completely.
-  def remove_make_var!(flags)
-    Array(flags).each do |flag|
-      # Also remove trailing \n, if present.
-      unless gsub!(/^#{Regexp.escape(flag)}[ \t]*[\\?+:!]?=(?:.*\\\n)*.*$\n?/, "", false)
-        errors << "expected to remove #{flag.inspect}"
-      end
-    end
-  end
-
-  # Finds the specified variable
-  def get_make_var(flag)
-    inreplace_string[/^#{Regexp.escape(flag)}[ \t]*[\\?+:!]?=[ \t]*((?:.*\\\n)*.*)$/, 1]
-  end
-end
diff --git a/Library/Homebrew/sorbet/rbi/utils/inreplace.rbi b/Library/Homebrew/sorbet/rbi/utils/inreplace.rbi
deleted file mode 100644
index b6d0be9a5a86b..0000000000000
--- a/Library/Homebrew/sorbet/rbi/utils/inreplace.rbi
+++ /dev/null
@@ -1,29 +0,0 @@
-# typed: strict
-
-module Utils::Inreplace
-  include Kernel
-
-  sig { params(paths: T::Array[T.untyped], before: T.nilable(String), after: T.nilable(T.any(String, Symbol)), audit_result: T::Boolean).void }
-  def inreplace(paths, before = nil, after = nil, audit_result = true); end
-end
-
-class StringInreplaceExtension
-  sig { params(before: String, after: String).returns(T.nilable(String)) }
-  def sub!(before, after)
-  end
-
-  sig { params(before: T.nilable(String), after: T.nilable(String), audit_result: T::Boolean).returns(T.nilable(String)) }
-  def gsub!(before, after, audit_result = true); end
-
-  sig {params(flag: String, new_value: String).void}
-  def change_make_var!(flag, new_value)
-  end
-
-  sig {params(flags: T::Array[String]).void}
-  def remove_make_var!(flags)
-  end
-
-  sig {params(flag: String).returns(String)}
-  def get_make_var(flag)
-  end
-end
diff --git a/Library/Homebrew/test/string_spec.rb b/Library/Homebrew/test/string_spec.rb
deleted file mode 100644
index 0442c620a2205..0000000000000
--- a/Library/Homebrew/test/string_spec.rb
+++ /dev/null
@@ -1,17 +0,0 @@
-# typed: false
-# frozen_string_literal: true
-
-require "extend/string"
-
-describe StringInreplaceExtension do
-  subject { described_class.new(string) }
-
-  let(:string) { +"foobar" }
-
-  describe "#sub!" do
-    it "adds an error to #errors when no replacement was made" do
-      subject.sub! "not here", "test"
-      expect(subject.errors).to eq(['expected replacement of "not here" with "test"'])
-    end
-  end
-end
diff --git a/Library/Homebrew/test/utils/inreplace_spec.rb b/Library/Homebrew/test/utils/inreplace_spec.rb
new file mode 100644
index 0000000000000..16c5bedd624c2
--- /dev/null
+++ b/Library/Homebrew/test/utils/inreplace_spec.rb
@@ -0,0 +1,56 @@
+# typed: false
+# frozen_string_literal: true
+
+require "tempfile"
+require "utils/inreplace"
+
+describe Utils::Inreplace do
+  let(:file) { Tempfile.new("test") }
+
+  before do
+    file.write <<~EOS
+      a
+      b
+      c
+    EOS
+  end
+
+  after { file.unlink }
+
+  it "raises error if there are no files given to replace" do
+    expect {
+      described_class.inreplace [], "d", "f"
+    }.to raise_error(Utils::Inreplace::Error)
+  end
+
+  it "raises error if there is nothing to replace" do
+    expect {
+      described_class.inreplace file.path, "d", "f"
+    }.to raise_error(Utils::Inreplace::Error)
+  end
+
+  it "raises error if there is nothing to replace in block form" do
+    expect {
+      described_class.inreplace(file.path) do |s|
+        s.gsub!("d", "f") # rubocop:disable Performance/StringReplacement
+      end
+    }.to raise_error(Utils::Inreplace::Error)
+  end
+
+  it "raises error if there is no make variables to replace" do
+    expect {
+      described_class.inreplace(file.path) do |s|
+        s.change_make_var! "VAR", "value"
+        s.remove_make_var! "VAR2"
+      end
+    }.to raise_error(Utils::Inreplace::Error)
+  end
+
+  describe "#inreplace_pairs" do
+    it "raises error if there is no old value" do
+      expect {
+        described_class.inreplace_pairs(file.path, [[nil, "f"]])
+      }.to raise_error(Utils::Inreplace::Error)
+    end
+  end
+end
diff --git a/Library/Homebrew/test/inreplace_spec.rb b/Library/Homebrew/test/utils/string_inreplace_extension_spec.rb
similarity index 59%
rename from Library/Homebrew/test/inreplace_spec.rb
rename to Library/Homebrew/test/utils/string_inreplace_extension_spec.rb
index aa80fddd0c627..a072aafb5e08b 100644
--- a/Library/Homebrew/test/inreplace_spec.rb
+++ b/Library/Homebrew/test/utils/string_inreplace_extension_spec.rb
@@ -1,12 +1,10 @@
 # typed: false
 # frozen_string_literal: true
 
-require "extend/string"
-require "tempfile"
-require "utils/inreplace"
+require "utils/string_inreplace_extension"
 
 describe StringInreplaceExtension do
-  subject { described_class.new(string.dup) }
+  subject(:string_extension) { described_class.new(string.dup) }
 
   describe "#change_make_var!" do
     context "flag" do
@@ -20,8 +18,8 @@
         end
 
         it "is successfully replaced" do
-          subject.change_make_var! "FLAG", "def"
-          expect(subject.inreplace_string).to eq <<~EOS
+          string_extension.change_make_var! "FLAG", "def"
+          expect(string_extension.inreplace_string).to eq <<~EOS
             OTHER=def
             FLAG=def
             FLAG2=abc
@@ -29,8 +27,8 @@
         end
 
         it "is successfully appended" do
-          subject.change_make_var! "FLAG", "\\1 def"
-          expect(subject.inreplace_string).to eq <<~EOS
+          string_extension.change_make_var! "FLAG", "\\1 def"
+          expect(string_extension.inreplace_string).to eq <<~EOS
             OTHER=def
             FLAG=abc def
             FLAG2=abc
@@ -47,8 +45,8 @@
         end
 
         it "is successfully replaced" do
-          subject.change_make_var! "CFLAGS", "-O3"
-          expect(subject.inreplace_string).to eq <<~EOS
+          string_extension.change_make_var! "CFLAGS", "-O3"
+          expect(string_extension.inreplace_string).to eq <<~EOS
             CFLAGS=-O3
             LDFLAGS\t=\t-lcrypto -lssl
           EOS
@@ -65,8 +63,8 @@
         end
 
         it "is successfully replaced" do
-          subject.change_make_var! "CFLAGS", "-O3"
-          expect(subject.inreplace_string).to eq <<~EOS
+          string_extension.change_make_var! "CFLAGS", "-O3"
+          expect(string_extension.inreplace_string).to eq <<~EOS
             CFLAGS=-O3
             LDFLAGS = -lcrypto -lssl
           EOS
@@ -84,8 +82,8 @@
       end
 
       it "is successfully replaced" do
-        subject.change_make_var! "FLAG", "def"
-        expect(subject.inreplace_string).to eq <<~EOS
+        string_extension.change_make_var! "FLAG", "def"
+        expect(string_extension.inreplace_string).to eq <<~EOS
           OTHER=def
           FLAG=def
           FLAG2=abc
@@ -102,8 +100,8 @@
       end
 
       it "is successfully replaced" do
-        subject.change_make_var! "FLAG", "def"
-        expect(subject.inreplace_string).to eq <<~EOS
+        string_extension.change_make_var! "FLAG", "def"
+        expect(string_extension.inreplace_string).to eq <<~EOS
           FLAG=def
           mv file_a file_b
         EOS
@@ -120,8 +118,8 @@
       end
 
       it "is successfully replaced" do
-        subject.change_make_var! "FLAG", "def"
-        expect(subject.inreplace_string).to eq <<~EOS
+        string_extension.change_make_var! "FLAG", "def"
+        expect(string_extension.inreplace_string).to eq <<~EOS
           OTHER=def
           FLAG=def
           FLAG2=abc
@@ -142,8 +140,8 @@
         end
 
         it "is successfully removed" do
-          subject.remove_make_var! "FLAG"
-          expect(subject.inreplace_string).to eq <<~EOS
+          string_extension.remove_make_var! "FLAG"
+          expect(string_extension.inreplace_string).to eq <<~EOS
             OTHER=def
             FLAG2 = def
           EOS
@@ -159,8 +157,8 @@
         end
 
         it "is successfully removed" do
-          subject.remove_make_var! "LDFLAGS"
-          expect(subject.inreplace_string).to eq <<~EOS
+          string_extension.remove_make_var! "LDFLAGS"
+          expect(string_extension.inreplace_string).to eq <<~EOS
             CFLAGS\t=\t-Wall -O2
           EOS
         end
@@ -176,8 +174,8 @@
         end
 
         it "is successfully removed" do
-          subject.remove_make_var! "CFLAGS"
-          expect(subject.inreplace_string).to eq <<~EOS
+          string_extension.remove_make_var! "CFLAGS"
+          expect(string_extension.inreplace_string).to eq <<~EOS
             LDFLAGS = -lcrypto -lssl
           EOS
         end
@@ -195,8 +193,8 @@
       end
 
       specify "are be successfully removed" do
-        subject.remove_make_var! ["FLAG", "FLAG2"]
-        expect(subject.inreplace_string).to eq <<~EOS
+        string_extension.remove_make_var! ["FLAG", "FLAG2"]
+        expect(string_extension.inreplace_string).to eq <<~EOS
           OTHER=def
           OTHER2=def
         EOS
@@ -214,7 +212,7 @@
       end
 
       it "extracts the value for a given variable" do
-        expect(subject.get_make_var("CFLAGS")).to eq("-Wall -O2")
+        expect(string_extension.get_make_var("CFLAGS")).to eq("-Wall -O2")
       end
     end
 
@@ -227,7 +225,7 @@
       end
 
       it "extracts the value for a given variable" do
-        expect(subject.get_make_var("CFLAGS")).to eq("-Wall -O2")
+        expect(string_extension.get_make_var("CFLAGS")).to eq("-Wall -O2")
       end
     end
 
@@ -241,7 +239,7 @@
       end
 
       it "extracts the value for a given variable" do
-        expect(subject.get_make_var("CFLAGS")).to match(/^-Wall -O2 \\\n +-DSOME_VAR=1$/)
+        expect(string_extension.get_make_var("CFLAGS")).to match(/^-Wall -O2 \\\n +-DSOME_VAR=1$/)
       end
     end
   end
@@ -250,8 +248,13 @@
     let(:string) { "foo" }
 
     it "replaces the first occurrence" do
-      subject.sub!("o", "e")
-      expect(subject.inreplace_string).to eq("feo")
+      string_extension.sub!("o", "e")
+      expect(string_extension.inreplace_string).to eq("feo")
+    end
+
+    it "adds an error to #errors when no replacement was made" do
+      string_extension.sub! "not here", "test"
+      expect(string_extension.errors).to eq(['expected replacement of "not here" with "test"'])
     end
   end
 
@@ -259,59 +262,8 @@
     let(:string) { "foo" }
 
     it "replaces all occurrences" do
-      subject.gsub!("o", "e") # rubocop:disable Performance/StringReplacement
-      expect(subject.inreplace_string).to eq("fee")
-    end
-  end
-end
-
-describe Utils::Inreplace do
-  let(:file) { Tempfile.new("test") }
-
-  before do
-    file.write <<~EOS
-      a
-      b
-      c
-    EOS
-  end
-
-  after { file.unlink }
-
-  it "raises error if there are no files given to replace" do
-    expect {
-      described_class.inreplace [], "d", "f"
-    }.to raise_error(Utils::Inreplace::Error)
-  end
-
-  it "raises error if there is nothing to replace" do
-    expect {
-      described_class.inreplace file.path, "d", "f"
-    }.to raise_error(Utils::Inreplace::Error)
-  end
-
-  it "raises error if there is nothing to replace in block form" do
-    expect {
-      described_class.inreplace(file.path) do |s|
-        s.gsub!("d", "f") # rubocop:disable Performance/StringReplacement
-      end
-    }.to raise_error(Utils::Inreplace::Error)
-  end
-
-  it "raises error if there is no make variables to replace" do
-    expect {
-      described_class.inreplace(file.path) do |s|
-        s.change_make_var! "VAR", "value"
-        s.remove_make_var! "VAR2"
-      end
-    }.to raise_error(Utils::Inreplace::Error)
-  end
-
-  describe "#inreplace_pairs" do
-    it "raises error if there is no old value" do
-      expect {
-        described_class.inreplace_pairs(file.path, [[nil, "f"]])
-      }.to raise_error(Utils::Inreplace::Error)
+      string_extension.gsub!("o", "e") # rubocop:disable Performance/StringReplacement
+      expect(string_extension.inreplace_string).to eq("fee")
     end
   end
 end
diff --git a/Library/Homebrew/utils/inreplace.rb b/Library/Homebrew/utils/inreplace.rb
index 9d94ae0a813df..f2827a89794d8 100644
--- a/Library/Homebrew/utils/inreplace.rb
+++ b/Library/Homebrew/utils/inreplace.rb
@@ -1,11 +1,16 @@
 # typed: true
 # frozen_string_literal: true
 
+require "utils/string_inreplace_extension"
+
 module Utils
   # Helper functions for replacing text in files in-place.
   #
   # @api private
   module Inreplace
+    include Kernel
+    extend T::Sig
+
     # Error during replacement.
     class Error < RuntimeError
       def initialize(errors)
@@ -28,6 +33,14 @@ def initialize(errors)
     # <pre>inreplace "somefile.cfg", /look[for]what?/, "replace by #{bin}/tool"</pre>
     #
     # @api public
+    sig do
+      params(
+        paths:        T::Array[T.untyped],
+        before:       T.nilable(T.any(Regexp, String)),
+        after:        T.nilable(T.any(String, Symbol)),
+        audit_result: T::Boolean,
+      ).void
+    end
     def inreplace(paths, before = nil, after = nil, audit_result = true) # rubocop:disable Style/OptionalBooleanParameter
       after = after.to_s if after.is_a? Symbol
 
@@ -42,7 +55,7 @@ def inreplace(paths, before = nil, after = nil, audit_result = true) # rubocop:d
         if before.nil? && after.nil?
           yield s
         else
-          s.gsub!(before, after, audit_result)
+          s.gsub!(T.must(before), after, audit_result)
         end
 
         errors[path] = s.errors unless s.errors.empty?
@@ -54,7 +67,7 @@ def inreplace(paths, before = nil, after = nil, audit_result = true) # rubocop:d
     end
 
     def inreplace_pairs(path, replacement_pairs, read_only_run: false, silent: false)
-      str = File.open(path, "rb", &:read)
+      str = File.open(path, "rb", &:read) || ""
       contents = StringInreplaceExtension.new(str)
       replacement_pairs.each do |old, new|
         ohai "replace #{old.inspect} with #{new.inspect}" unless silent
diff --git a/Library/Homebrew/utils/string_inreplace_extension.rb b/Library/Homebrew/utils/string_inreplace_extension.rb
new file mode 100644
index 0000000000000..6a9aa275deb74
--- /dev/null
+++ b/Library/Homebrew/utils/string_inreplace_extension.rb
@@ -0,0 +1,72 @@
+# typed: true
+# frozen_string_literal: true
+
+# Used by the `inreplace` function (in `utils.rb`).
+#
+# @api private
+class StringInreplaceExtension
+  extend T::Sig
+
+  attr_accessor :errors, :inreplace_string
+
+  sig { params(string: String).void }
+  def initialize(string)
+    @inreplace_string = string
+    @errors = []
+  end
+
+  # Same as `String#sub!`, but warns if nothing was replaced.
+  #
+  # @api public
+  sig { params(before: String, after: String).returns(T.nilable(String)) }
+  def sub!(before, after)
+    result = inreplace_string.sub!(before, after)
+    errors << "expected replacement of #{before.inspect} with #{after.inspect}" unless result
+    result
+  end
+
+  # Same as `String#gsub!`, but warns if nothing was replaced.
+  #
+  # @api public
+  sig do
+    params(before: T.any(Regexp, String), after: T.nilable(String), audit_result: T::Boolean)
+      .returns(T.nilable(String))
+  end
+  def gsub!(before, after, audit_result = true) # rubocop:disable Style/OptionalBooleanParameter
+    result = inreplace_string.gsub!(before, after)
+    errors << "expected replacement of #{before.inspect} with #{after.inspect}" if audit_result && result.nil?
+    result
+  end
+
+  # Looks for Makefile style variable definitions and replaces the
+  # value with "new_value", or removes the definition entirely.
+  #
+  # @api public
+  sig { params(flag: String, new_value: String).void }
+  def change_make_var!(flag, new_value)
+    return if gsub!(/^#{Regexp.escape(flag)}[ \t]*[\\?+:!]?=[ \t]*((?:.*\\\n)*.*)$/, "#{flag}=#{new_value}", false)
+
+    errors << "expected to change #{flag.inspect} to #{new_value.inspect}"
+  end
+
+  # Removes variable assignments completely.
+  #
+  # @api public
+  sig { params(flags: T.any(String, T::Array[String])).void }
+  def remove_make_var!(flags)
+    Array(flags).each do |flag|
+      # Also remove trailing \n, if present.
+      unless gsub!(/^#{Regexp.escape(flag)}[ \t]*[\\?+:!]?=(?:.*\\\n)*.*$\n?/, "", false)
+        errors << "expected to remove #{flag.inspect}"
+      end
+    end
+  end
+
+  # Finds the specified variable.
+  #
+  # @api public
+  sig { params(flag: String).returns(String) }
+  def get_make_var(flag)
+    inreplace_string[/^#{Regexp.escape(flag)}[ \t]*[\\?+:!]?=[ \t]*((?:.*\\\n)*.*)$/, 1]
+  end
+end

From ff653571b19d7716de12c82bfec606aac347c409 Mon Sep 17 00:00:00 2001
From: Markus Reiter <me@reitermark.us>
Date: Sat, 10 Oct 2020 15:23:03 +0200
Subject: [PATCH 03/15] Create `Utils::Curl` module and explicitly include it.

---
 Library/Homebrew/download_strategy.rb         |   4 +
 .../Homebrew/sorbet/rbi/utils/notability.rbi  |  15 -
 Library/Homebrew/utils/curl.rb                | 480 +++++++++---------
 Library/Homebrew/utils/shared_audits.rb       |   3 +
 Library/Homebrew/utils/spdx.rb                |   3 +
 5 files changed, 258 insertions(+), 247 deletions(-)
 delete mode 100644 Library/Homebrew/sorbet/rbi/utils/notability.rbi

diff --git a/Library/Homebrew/download_strategy.rb b/Library/Homebrew/download_strategy.rb
index 35950630b2517..6192391b782ea 100644
--- a/Library/Homebrew/download_strategy.rb
+++ b/Library/Homebrew/download_strategy.rb
@@ -11,6 +11,8 @@
 require "mechanize/version"
 require "mechanize/http/content_disposition_parser"
 
+require "utils/curl"
+
 # @abstract Abstract superclass for all download strategies.
 #
 # @api private
@@ -328,6 +330,8 @@ def parse_basename(url)
 #
 # @api public
 class CurlDownloadStrategy < AbstractFileDownloadStrategy
+  include Utils::Curl
+
   attr_reader :mirrors
 
   def initialize(url, name, version, **meta)
diff --git a/Library/Homebrew/sorbet/rbi/utils/notability.rbi b/Library/Homebrew/sorbet/rbi/utils/notability.rbi
deleted file mode 100644
index 546b4c8c62787..0000000000000
--- a/Library/Homebrew/sorbet/rbi/utils/notability.rbi
+++ /dev/null
@@ -1,15 +0,0 @@
-# typed: strict
-
-module SharedAudits
-  def github(user, repo)
-  end
-
-  def gitlab(user, repo)
-  end
-
-  def bitbucket(user, repo)
-  end
-
-  def curl_output(*args, secrets: [], **options)
-  end
-end
diff --git a/Library/Homebrew/utils/curl.rb b/Library/Homebrew/utils/curl.rb
index db53efb9ee55c..7229bd2e2a2da 100644
--- a/Library/Homebrew/utils/curl.rb
+++ b/Library/Homebrew/utils/curl.rb
@@ -3,259 +3,275 @@
 
 require "open3"
 
-def curl_executable
-  @curl ||= [
-    ENV["HOMEBREW_CURL"],
-    which("curl"),
-    "/usr/bin/curl",
-  ].compact.map { |c| Pathname(c) }.find(&:executable?)
-  raise "no executable curl was found" unless @curl
-
-  @curl
-end
+module Utils
+  # Helper function for interacting with `curl`.
+  #
+  # @api private
+  module Curl
+    module_function
+
+    def curl_executable
+      @curl ||= [
+        ENV["HOMEBREW_CURL"],
+        which("curl"),
+        "/usr/bin/curl",
+      ].compact.map { |c| Pathname(c) }.find(&:executable?)
+      raise "no executable curl was found" unless @curl
+
+      @curl
+    end
 
-def curl_args(*extra_args, show_output: false, user_agent: :default)
-  args = []
+    def curl_args(*extra_args, show_output: false, user_agent: :default)
+      args = []
 
-  # do not load .curlrc unless requested (must be the first argument)
-  args << "--disable" unless Homebrew::EnvConfig.curlrc?
+      # do not load .curlrc unless requested (must be the first argument)
+      args << "--disable" unless Homebrew::EnvConfig.curlrc?
 
-  args << "--globoff"
+      args << "--globoff"
 
-  args << "--show-error"
+      args << "--show-error"
 
-  args << "--user-agent" << case user_agent
-  when :browser, :fake
-    HOMEBREW_USER_AGENT_FAKE_SAFARI
-  when :default
-    HOMEBREW_USER_AGENT_CURL
-  else
-    user_agent
-  end
+      args << "--user-agent" << case user_agent
+      when :browser, :fake
+        HOMEBREW_USER_AGENT_FAKE_SAFARI
+      when :default
+        HOMEBREW_USER_AGENT_CURL
+      else
+        user_agent
+      end
 
-  args << "--header" << "Accept-Language: en"
+      args << "--header" << "Accept-Language: en"
 
-  unless show_output
-    args << "--fail"
-    args << "--progress-bar" unless Context.current.verbose?
-    args << "--verbose" if Homebrew::EnvConfig.curl_verbose?
-    args << "--silent" unless $stdout.tty?
-  end
+      unless show_output
+        args << "--fail"
+        args << "--progress-bar" unless Context.current.verbose?
+        args << "--verbose" if Homebrew::EnvConfig.curl_verbose?
+        args << "--silent" unless $stdout.tty?
+      end
 
-  args << "--retry" << Homebrew::EnvConfig.curl_retries
+      args << "--retry" << Homebrew::EnvConfig.curl_retries
 
-  args + extra_args
-end
-
-def curl_with_workarounds(*args, secrets: nil, print_stdout: nil, print_stderr: nil, verbose: nil, env: {}, **options)
-  command_options = {
-    secrets:      secrets,
-    print_stdout: print_stdout,
-    print_stderr: print_stderr,
-    verbose:      verbose,
-  }.compact
-
-  # SSL_CERT_FILE can be incorrectly set by users or portable-ruby and screw
-  # with SSL downloads so unset it here.
-  result = system_command curl_executable,
-                          args: curl_args(*args, **options),
-                          env:  { "SSL_CERT_FILE" => nil }.merge(env),
-                          **command_options
-
-  if !result.success? && !args.include?("--http1.1")
-    # This is a workaround for https://github.com/curl/curl/issues/1618.
-    if result.status.exitstatus == 56 # Unexpected EOF
-      out = curl_output("-V").stdout
-
-      # If `curl` doesn't support HTTP2, the exception is unrelated to this bug.
-      return result unless out.include?("HTTP2")
-
-      # The bug is fixed in `curl` >= 7.60.0.
-      curl_version = out[/curl (\d+(\.\d+)+)/, 1]
-      return result if Gem::Version.new(curl_version) >= Gem::Version.new("7.60.0")
-
-      return curl_with_workarounds(*args, "--http1.1", **command_options, **options)
+      args + extra_args
     end
 
-    if result.status.exitstatus == 16 # Error in the HTTP2 framing layer
-      return curl_with_workarounds(*args, "--http1.1", **command_options, **options)
+    def curl_with_workarounds(
+      *args, secrets: nil, print_stdout: nil, print_stderr: nil, verbose: nil, env: {}, **options
+    )
+      command_options = {
+        secrets:      secrets,
+        print_stdout: print_stdout,
+        print_stderr: print_stderr,
+        verbose:      verbose,
+      }.compact
+
+      # SSL_CERT_FILE can be incorrectly set by users or portable-ruby and screw
+      # with SSL downloads so unset it here.
+      result = system_command curl_executable,
+                              args: curl_args(*args, **options),
+                              env:  { "SSL_CERT_FILE" => nil }.merge(env),
+                              **command_options
+
+      if !result.success? && !args.include?("--http1.1")
+        # This is a workaround for https://github.com/curl/curl/issues/1618.
+        if result.status.exitstatus == 56 # Unexpected EOF
+          out = curl_output("-V").stdout
+
+          # If `curl` doesn't support HTTP2, the exception is unrelated to this bug.
+          return result unless out.include?("HTTP2")
+
+          # The bug is fixed in `curl` >= 7.60.0.
+          curl_version = out[/curl (\d+(\.\d+)+)/, 1]
+          return result if Gem::Version.new(curl_version) >= Gem::Version.new("7.60.0")
+
+          return curl_with_workarounds(*args, "--http1.1", **command_options, **options)
+        end
+
+        if result.status.exitstatus == 16 # Error in the HTTP2 framing layer
+          return curl_with_workarounds(*args, "--http1.1", **command_options, **options)
+        end
+      end
+
+      result
     end
-  end
 
-  result
-end
-
-def curl(*args, print_stdout: true, **options)
-  result = curl_with_workarounds(*args, print_stdout: print_stdout, **options)
-  result.assert_success!
-  result
-end
-
-def curl_download(*args, to: nil, partial: true, **options)
-  destination = Pathname(to)
-  destination.dirname.mkpath
-
-  if partial
-    range_stdout = curl_output("--location", "--range", "0-1",
-                               "--dump-header", "-",
-                               "--write-out", "%\{http_code}",
-                               "--output", "/dev/null", *args, **options).stdout
-    headers, _, http_status = range_stdout.partition("\r\n\r\n")
-
-    supports_partial_download = http_status.to_i == 206 # Partial Content
-    if supports_partial_download &&
-       destination.exist? &&
-       destination.size == %r{^.*Content-Range: bytes \d+-\d+/(\d+)\r\n.*$}m.match(headers)&.[](1)&.to_i
-      return # We've already downloaded all the bytes
+    def curl(*args, print_stdout: true, **options)
+      result = curl_with_workarounds(*args, print_stdout: print_stdout, **options)
+      result.assert_success!
+      result
     end
-  else
-    supports_partial_download = false
-  end
-
-  continue_at = if destination.exist? && supports_partial_download
-    "-"
-  else
-    0
-  end
-
-  curl("--location", "--remote-time", "--continue-at", continue_at.to_s, "--output", destination, *args, **options)
-end
-
-def curl_output(*args, **options)
-  curl_with_workarounds(*args, print_stderr: false, show_output: true, **options)
-end
-
-# Check if a URL is protected by CloudFlare (e.g. badlion.net and jaxx.io).
-def url_protected_by_cloudflare?(details)
-  [403, 503].include?(details[:status].to_i) &&
-    details[:headers].match?(/^Set-Cookie: __cfduid=/i) &&
-    details[:headers].match?(/^Server: cloudflare/i)
-end
-
-# Check if a URL is protected by Incapsula (e.g. corsair.com).
-def url_protected_by_incapsula?(details)
-  details[:status].to_i == 403 &&
-    details[:headers].match?(/^Set-Cookie: visid_incap_/i) &&
-    details[:headers].match?(/^Set-Cookie: incap_ses_/i)
-end
-
-def curl_check_http_content(url, user_agents: [:default], check_content: false, strict: false)
-  return unless url.start_with? "http"
-
-  details = nil
-  user_agent = nil
-  hash_needed = url.start_with?("http:")
-  user_agents.each do |ua|
-    details = curl_http_content_headers_and_checksum(url, hash_needed: hash_needed, user_agent: ua)
-    user_agent = ua
-    break if http_status_ok?(details[:status])
-  end
-
-  unless details[:status]
-    # Hack around https://github.com/Homebrew/brew/issues/3199
-    return if MacOS.version == :el_capitan
 
-    return "The URL #{url} is not reachable"
-  end
-
-  unless http_status_ok?(details[:status])
-    return if url_protected_by_cloudflare?(details) || url_protected_by_incapsula?(details)
-
-    return "The URL #{url} is not reachable (HTTP status code #{details[:status]})"
-  end
-
-  if url.start_with?("https://") && Homebrew::EnvConfig.no_insecure_redirect? &&
-     !details[:final_url].start_with?("https://")
-    return "The URL #{url} redirects back to HTTP"
-  end
-
-  return unless hash_needed
-
-  secure_url = url.sub "http", "https"
-  secure_details =
-    curl_http_content_headers_and_checksum(secure_url, hash_needed: true, user_agent: user_agent)
-
-  if !http_status_ok?(details[:status]) ||
-     !http_status_ok?(secure_details[:status])
-    return
-  end
-
-  etag_match = details[:etag] &&
-               details[:etag] == secure_details[:etag]
-  content_length_match =
-    details[:content_length] &&
-    details[:content_length] == secure_details[:content_length]
-  file_match = details[:file_hash] == secure_details[:file_hash]
-
-  if (etag_match || content_length_match || file_match) &&
-     secure_details[:final_url].start_with?("https://") &&
-     url.start_with?("http://")
-    return "The URL #{url} should use HTTPS rather than HTTP"
-  end
-
-  return unless check_content
-
-  no_protocol_file_contents = %r{https?:\\?/\\?/}
-  details[:file] = details[:file].gsub(no_protocol_file_contents, "/")
-  secure_details[:file] = secure_details[:file].gsub(no_protocol_file_contents, "/")
+    def curl_download(*args, to: nil, partial: true, **options)
+      destination = Pathname(to)
+      destination.dirname.mkpath
+
+      if partial
+        range_stdout = curl_output("--location", "--range", "0-1",
+                                   "--dump-header", "-",
+                                   "--write-out", "%\{http_code}",
+                                   "--output", "/dev/null", *args, **options).stdout
+        headers, _, http_status = range_stdout.partition("\r\n\r\n")
+
+        supports_partial_download = http_status.to_i == 206 # Partial Content
+        if supports_partial_download &&
+           destination.exist? &&
+           destination.size == %r{^.*Content-Range: bytes \d+-\d+/(\d+)\r\n.*$}m.match(headers)&.[](1)&.to_i
+          return # We've already downloaded all the bytes
+        end
+      else
+        supports_partial_download = false
+      end
+
+      continue_at = if destination.exist? && supports_partial_download
+        "-"
+      else
+        0
+      end
+
+      curl(
+        "--location", "--remote-time", "--continue-at", continue_at.to_s, "--output", destination, *args, **options
+      )
+    end
 
-  # Check for the same content after removing all protocols
-  if (details[:file] == secure_details[:file]) &&
-     secure_details[:final_url].start_with?("https://") &&
-     url.start_with?("http://")
-    return "The URL #{url} should use HTTPS rather than HTTP"
-  end
+    def curl_output(*args, **options)
+      curl_with_workarounds(*args, print_stderr: false, show_output: true, **options)
+    end
 
-  return unless strict
+    # Check if a URL is protected by CloudFlare (e.g. badlion.net and jaxx.io).
+    def url_protected_by_cloudflare?(details)
+      [403, 503].include?(details[:status].to_i) &&
+        details[:headers].match?(/^Set-Cookie: __cfduid=/i) &&
+        details[:headers].match?(/^Server: cloudflare/i)
+    end
 
-  # Same size, different content after normalization
-  # (typical causes: Generated ID, Timestamp, Unix time)
-  if details[:file].length == secure_details[:file].length
-    return "The URL #{url} may be able to use HTTPS rather than HTTP. Please verify it in a browser."
-  end
+    # Check if a URL is protected by Incapsula (e.g. corsair.com).
+    def url_protected_by_incapsula?(details)
+      details[:status].to_i == 403 &&
+        details[:headers].match?(/^Set-Cookie: visid_incap_/i) &&
+        details[:headers].match?(/^Set-Cookie: incap_ses_/i)
+    end
 
-  lenratio = (100 * secure_details[:file].length / details[:file].length).to_i
-  return unless (90..110).cover?(lenratio)
+    def curl_check_http_content(url, user_agents: [:default], check_content: false, strict: false)
+      return unless url.start_with? "http"
+
+      details = nil
+      user_agent = nil
+      hash_needed = url.start_with?("http:")
+      user_agents.each do |ua|
+        details = curl_http_content_headers_and_checksum(url, hash_needed: hash_needed, user_agent: ua)
+        user_agent = ua
+        break if http_status_ok?(details[:status])
+      end
+
+      unless details[:status]
+        # Hack around https://github.com/Homebrew/brew/issues/3199
+        return if MacOS.version == :el_capitan
+
+        return "The URL #{url} is not reachable"
+      end
+
+      unless http_status_ok?(details[:status])
+        return if url_protected_by_cloudflare?(details) || url_protected_by_incapsula?(details)
+
+        return "The URL #{url} is not reachable (HTTP status code #{details[:status]})"
+      end
+
+      if url.start_with?("https://") && Homebrew::EnvConfig.no_insecure_redirect? &&
+         !details[:final_url].start_with?("https://")
+        return "The URL #{url} redirects back to HTTP"
+      end
+
+      return unless hash_needed
+
+      secure_url = url.sub "http", "https"
+      secure_details =
+        curl_http_content_headers_and_checksum(secure_url, hash_needed: true, user_agent: user_agent)
+
+      if !http_status_ok?(details[:status]) ||
+         !http_status_ok?(secure_details[:status])
+        return
+      end
+
+      etag_match = details[:etag] &&
+                   details[:etag] == secure_details[:etag]
+      content_length_match =
+        details[:content_length] &&
+        details[:content_length] == secure_details[:content_length]
+      file_match = details[:file_hash] == secure_details[:file_hash]
+
+      if (etag_match || content_length_match || file_match) &&
+         secure_details[:final_url].start_with?("https://") &&
+         url.start_with?("http://")
+        return "The URL #{url} should use HTTPS rather than HTTP"
+      end
+
+      return unless check_content
+
+      no_protocol_file_contents = %r{https?:\\?/\\?/}
+      details[:file] = details[:file].gsub(no_protocol_file_contents, "/")
+      secure_details[:file] = secure_details[:file].gsub(no_protocol_file_contents, "/")
+
+      # Check for the same content after removing all protocols
+      if (details[:file] == secure_details[:file]) &&
+         secure_details[:final_url].start_with?("https://") &&
+         url.start_with?("http://")
+        return "The URL #{url} should use HTTPS rather than HTTP"
+      end
+
+      return unless strict
+
+      # Same size, different content after normalization
+      # (typical causes: Generated ID, Timestamp, Unix time)
+      if details[:file].length == secure_details[:file].length
+        return "The URL #{url} may be able to use HTTPS rather than HTTP. Please verify it in a browser."
+      end
+
+      lenratio = (100 * secure_details[:file].length / details[:file].length).to_i
+      return unless (90..110).cover?(lenratio)
+
+      "The URL #{url} may be able to use HTTPS rather than HTTP. Please verify it in a browser."
+    end
 
-  "The URL #{url} may be able to use HTTPS rather than HTTP. Please verify it in a browser."
-end
+    def curl_http_content_headers_and_checksum(url, hash_needed: false, user_agent: :default)
+      file = Tempfile.new.tap(&:close)
+
+      max_time = hash_needed ? "600" : "25"
+      output, = curl_output(
+        "--dump-header", "-", "--output", file.path, "--include", "--location",
+        "--connect-timeout", "15", "--max-time", max_time, url,
+        user_agent: user_agent
+      )
+
+      status_code = :unknown
+      while status_code == :unknown || status_code.to_s.start_with?("3")
+        headers, _, output = output.partition("\r\n\r\n")
+        status_code = headers[%r{HTTP/.* (\d+)}, 1]
+        location = headers[/^Location:\s*(.*)$/i, 1]
+        final_url = location.chomp if location
+      end
+
+      output_hash = Digest::SHA256.file(file.path) if hash_needed
+
+      final_url ||= url
+
+      {
+        url:            url,
+        final_url:      final_url,
+        status:         status_code,
+        etag:           headers[%r{ETag: ([wW]/)?"(([^"]|\\")*)"}, 2],
+        content_length: headers[/Content-Length: (\d+)/, 1],
+        headers:        headers,
+        file_hash:      output_hash,
+        file:           output,
+      }
+    ensure
+      file.unlink
+    end
 
-def curl_http_content_headers_and_checksum(url, hash_needed: false, user_agent: :default)
-  file = Tempfile.new.tap(&:close)
-
-  max_time = hash_needed ? "600" : "25"
-  output, = curl_output(
-    "--dump-header", "-", "--output", file.path, "--include", "--location",
-    "--connect-timeout", "15", "--max-time", max_time, url,
-    user_agent: user_agent
-  )
-
-  status_code = :unknown
-  while status_code == :unknown || status_code.to_s.start_with?("3")
-    headers, _, output = output.partition("\r\n\r\n")
-    status_code = headers[%r{HTTP/.* (\d+)}, 1]
-    location = headers[/^Location:\s*(.*)$/i, 1]
-    final_url = location.chomp if location
+    def http_status_ok?(status)
+      (100..299).cover?(status.to_i)
+    end
   end
-
-  output_hash = Digest::SHA256.file(file.path) if hash_needed
-
-  final_url ||= url
-
-  {
-    url:            url,
-    final_url:      final_url,
-    status:         status_code,
-    etag:           headers[%r{ETag: ([wW]/)?"(([^"]|\\")*)"}, 2],
-    content_length: headers[/Content-Length: (\d+)/, 1],
-    headers:        headers,
-    file_hash:      output_hash,
-    file:           output,
-  }
-ensure
-  file.unlink
 end
 
-def http_status_ok?(status)
-  (100..299).cover?(status.to_i)
-end
+# FIXME: Include `Utils::Curl` explicitly everywhere it is used.
+include Utils::Curl # rubocop:disable Style/MixinUsage
diff --git a/Library/Homebrew/utils/shared_audits.rb b/Library/Homebrew/utils/shared_audits.rb
index 694f659804485..ad69344ca3cc3 100644
--- a/Library/Homebrew/utils/shared_audits.rb
+++ b/Library/Homebrew/utils/shared_audits.rb
@@ -7,6 +7,9 @@
 #
 # @api private
 module SharedAudits
+  include Utils::Curl
+  extend Utils::Curl
+
   module_function
 
   def github_repo_data(user, repo)
diff --git a/Library/Homebrew/utils/spdx.rb b/Library/Homebrew/utils/spdx.rb
index 64467c291e9b2..693689f3072c6 100644
--- a/Library/Homebrew/utils/spdx.rb
+++ b/Library/Homebrew/utils/spdx.rb
@@ -1,12 +1,15 @@
 # typed: true
 # frozen_string_literal: true
 
+require "utils/curl"
 require "utils/github"
 
 # Helper module for updating SPDX license data.
 #
 # @api private
 module SPDX
+  extend Utils::Curl
+
   module_function
 
   DATA_PATH = (HOMEBREW_DATA_PATH/"spdx").freeze

From 8fabc56a22d8ba53ecb26a9d4a9916ec849593c9 Mon Sep 17 00:00:00 2001
From: Markus Reiter <me@reitermark.us>
Date: Sat, 10 Oct 2020 15:31:32 +0200
Subject: [PATCH 04/15] Inline type annotations for `Utils::Shell`.

---
 Library/Homebrew/sorbet/rbi/utils/shell.rbi | 38 ---------------------
 Library/Homebrew/utils/shell.rb             | 20 ++++++++---
 2 files changed, 16 insertions(+), 42 deletions(-)
 delete mode 100644 Library/Homebrew/sorbet/rbi/utils/shell.rbi

diff --git a/Library/Homebrew/sorbet/rbi/utils/shell.rbi b/Library/Homebrew/sorbet/rbi/utils/shell.rbi
deleted file mode 100644
index f4a3507bd8c05..0000000000000
--- a/Library/Homebrew/sorbet/rbi/utils/shell.rbi
+++ /dev/null
@@ -1,38 +0,0 @@
-# typed: strict
-
-module Utils::Shell
-  include Kernel
-
-  sig{ params(path: String).returns(T.nilable(Symbol)) }
-  def from_path(path)
-  end
-
-  sig{ returns(T.nilable(Symbol)) }
-  def preferred
-  end
-
-  def parent
-  end
-
-  def export_value(key, value, shell = preferred)
-  end
-
-  sig{ returns(String) }
-  def profile
-  end
-
-  def set_variable_in_profile(variable, value)
-  end
-
-  sig{ params(path: String).returns(T.nilable(String)) }
-  def prepend_path_in_profile(path)
-  end
-
-  sig{ params(str: String).returns(T.nilable(String)) }
-  def csh_quote(str)
-  end
-
-  sig{ params(str: String).returns(T.nilable(String)) }
-  def sh_quote(str)
-  end
-end
diff --git a/Library/Homebrew/utils/shell.rb b/Library/Homebrew/utils/shell.rb
index 4d9af01ff123b..c469c3ad94f66 100644
--- a/Library/Homebrew/utils/shell.rb
+++ b/Library/Homebrew/utils/shell.rb
@@ -3,10 +3,14 @@
 
 module Utils
   module Shell
+    include Kernel
+    extend T::Sig
+
     module_function
 
-    # take a path and heuristically convert it
-    # to a shell name, return nil if there's no match
+    # Take a path and heuristically convert it to a shell name,
+    # return `nil` if there's no match.
+    sig { params(path: String).returns(T.nilable(Symbol)) }
     def from_path(path)
       # we only care about the basename
       shell_name = File.basename(path)
@@ -15,15 +19,18 @@ def from_path(path)
       shell_name.to_sym if %w[bash csh fish ksh mksh sh tcsh zsh].include?(shell_name)
     end
 
+    sig { returns(T.nilable(Symbol)) }
     def preferred
       from_path(ENV.fetch("SHELL", ""))
     end
 
+    sig { returns(T.nilable(Symbol)) }
     def parent
       from_path(`ps -p #{Process.ppid} -o ucomm=`.strip)
     end
 
-    # quote values. quoting keys is overkill
+    # Quote values. Quoting keys is overkill.
+    sig { params(key: String, value: String, shell: T.nilable(Symbol)).returns(T.nilable(String)) }
     def export_value(key, value, shell = preferred)
       case shell
       when :bash, :ksh, :mksh, :sh, :zsh
@@ -38,7 +45,8 @@ def export_value(key, value, shell = preferred)
       end
     end
 
-    # return the shell profile file based on user's preferred shell
+    # Return the shell profile file based on user's preferred shell.
+    sig { returns(String) }
     def profile
       case preferred
       when :bash
@@ -51,6 +59,7 @@ def profile
       SHELL_PROFILE_MAP.fetch(preferred, "~/.profile")
     end
 
+    sig { params(variable: String, value: String).returns(T.nilable(String)) }
     def set_variable_in_profile(variable, value)
       case preferred
       when :bash, :ksh, :sh, :zsh, nil
@@ -62,6 +71,7 @@ def set_variable_in_profile(variable, value)
       end
     end
 
+    sig { params(path: String).returns(T.nilable(String)) }
     def prepend_path_in_profile(path)
       case preferred
       when :bash, :ksh, :mksh, :sh, :zsh, nil
@@ -86,6 +96,7 @@ def prepend_path_in_profile(path)
 
     UNSAFE_SHELL_CHAR = %r{([^A-Za-z0-9_\-.,:/@~\n])}.freeze
 
+    sig { params(str: String).returns(String) }
     def csh_quote(str)
       # ruby's implementation of shell_escape
       str = str.to_s
@@ -99,6 +110,7 @@ def csh_quote(str)
       str
     end
 
+    sig { params(str: String).returns(String) }
     def sh_quote(str)
       # ruby's implementation of shell_escape
       str = str.to_s

From 12e173cd50a36e99b981d452d230c6225136f731 Mon Sep 17 00:00:00 2001
From: Markus Reiter <me@reitermark.us>
Date: Sat, 10 Oct 2020 15:33:15 +0200
Subject: [PATCH 05/15] Inline type annotations for `SPDX`.

---
 Library/Homebrew/sorbet/rbi/utils/spdx.rbi | 11 -----------
 Library/Homebrew/utils/spdx.rb             |  1 +
 2 files changed, 1 insertion(+), 11 deletions(-)
 delete mode 100644 Library/Homebrew/sorbet/rbi/utils/spdx.rbi

diff --git a/Library/Homebrew/sorbet/rbi/utils/spdx.rbi b/Library/Homebrew/sorbet/rbi/utils/spdx.rbi
deleted file mode 100644
index 65203892fc3cd..0000000000000
--- a/Library/Homebrew/sorbet/rbi/utils/spdx.rbi
+++ /dev/null
@@ -1,11 +0,0 @@
-# typed: strict
-
-module SPDX
-  include Kernel
-
-  def spdx_data; end
-
-  def download_latest_license_data!(to: JSON_PATH); end
-
-  def curl_download(*args, to: nil, partial: true, **options); end
-end
diff --git a/Library/Homebrew/utils/spdx.rb b/Library/Homebrew/utils/spdx.rb
index 693689f3072c6..3ae60ea72cbd0 100644
--- a/Library/Homebrew/utils/spdx.rb
+++ b/Library/Homebrew/utils/spdx.rb
@@ -8,6 +8,7 @@
 #
 # @api private
 module SPDX
+  include Utils::Curl
   extend Utils::Curl
 
   module_function

From e1e9f2d9bdaea06805b2b3e4aa9253f778383b7c Mon Sep 17 00:00:00 2001
From: Markus Reiter <me@reitermark.us>
Date: Sat, 10 Oct 2020 15:35:20 +0200
Subject: [PATCH 06/15] Inline type annotations for `Utils::Svn`.

---
 Library/Homebrew/sorbet/rbi/utils/svn.rbi | 14 --------------
 Library/Homebrew/utils/svn.rb             |  6 ++++++
 2 files changed, 6 insertions(+), 14 deletions(-)
 delete mode 100644 Library/Homebrew/sorbet/rbi/utils/svn.rbi

diff --git a/Library/Homebrew/sorbet/rbi/utils/svn.rbi b/Library/Homebrew/sorbet/rbi/utils/svn.rbi
deleted file mode 100644
index b2081d874340d..0000000000000
--- a/Library/Homebrew/sorbet/rbi/utils/svn.rbi
+++ /dev/null
@@ -1,14 +0,0 @@
-# typed: strict
-
-module Utils::Svn
-  include Kernel
-
-  sig { returns(T::Boolean) }
-  def available?; end
-
-  sig { returns(T.nilable(String)) }
-  def version; end
-
-  sig { params(url: String).returns(T::Boolean) }
-  def remote_exists?(url); end
-end
diff --git a/Library/Homebrew/utils/svn.rb b/Library/Homebrew/utils/svn.rb
index 239a63ca6da65..febc3dee9a606 100644
--- a/Library/Homebrew/utils/svn.rb
+++ b/Library/Homebrew/utils/svn.rb
@@ -8,12 +8,17 @@ module Utils
   #
   # @api private
   module Svn
+    include Kernel
+    extend T::Sig
+
     module_function
 
+    sig { returns(T::Boolean) }
     def available?
       version.present?
     end
 
+    sig { returns(T.nilable(String)) }
     def version
       return @version if defined?(@version)
 
@@ -21,6 +26,7 @@ def version
       @version = status.success? ? stdout.chomp[/svn, version (\d+(?:\.\d+)*)/, 1] : nil
     end
 
+    sig { params(url: String).returns(T::Boolean) }
     def remote_exists?(url)
       return true unless available?
 

From fc7a34585f7a290b73e4a9861601060ee42afe3e Mon Sep 17 00:00:00 2001
From: Markus Reiter <me@reitermark.us>
Date: Sat, 10 Oct 2020 15:42:30 +0200
Subject: [PATCH 07/15] Inline type annotations for `Tty`.

---
 Library/Homebrew/sorbet/rbi/utils/tty.rbi | 36 -----------------------
 Library/Homebrew/utils/tty.rb             | 16 ++++++++--
 2 files changed, 14 insertions(+), 38 deletions(-)
 delete mode 100644 Library/Homebrew/sorbet/rbi/utils/tty.rbi

diff --git a/Library/Homebrew/sorbet/rbi/utils/tty.rbi b/Library/Homebrew/sorbet/rbi/utils/tty.rbi
deleted file mode 100644
index 67b8a68ee8e5e..0000000000000
--- a/Library/Homebrew/sorbet/rbi/utils/tty.rbi
+++ /dev/null
@@ -1,36 +0,0 @@
-# typed: strict
-
-module Tty
-  include Kernel
-
-  sig{ params(string: String).returns(String) }
-  def strip_ansi(string)
-  end
-
-  sig{ returns(Integer) }
-  def width()
-  end
-
-  sig{ params(string: String).returns(T.nilable(String)) }
-  def truncate(string)
-  end
-
-  def append_to_escape_sequence(code)
-  end
-
-  sig{ returns(String) }
-  def current_escape_sequence()
-  end
-
-  sig{ void }
-  def reset_escape_sequence!()
-  end
-
-  sig{ returns(String) }
-  def to_s
-  end
-
-  sig { returns(T::Boolean) }
-  def color?
-  end
-end
diff --git a/Library/Homebrew/utils/tty.rb b/Library/Homebrew/utils/tty.rb
index 3360f99cb2d0d..991c79336b74e 100644
--- a/Library/Homebrew/utils/tty.rb
+++ b/Library/Homebrew/utils/tty.rb
@@ -5,11 +5,15 @@
 #
 # @api private
 module Tty
+  include Kernel
+  extend T::Sig
+
   @stream = $stdout
 
   module_function
 
-  def with(stream)
+  sig { params(stream: IO, _block: T.proc.params(arg0: IO).void).void }
+  def with(stream, &_block)
     previous_stream = @stream
     @stream = stream
 
@@ -18,10 +22,12 @@ def with(stream)
     @stream = previous_stream
   end
 
+  sig { params(string: String).returns(String) }
   def strip_ansi(string)
     string.gsub(/\033\[\d+(;\d+)*m/, "")
   end
 
+  sig { returns(Integer) }
   def width
     @width ||= begin
       _, width = `/bin/stty size 2>/dev/null`.split
@@ -31,8 +37,9 @@ def width
     end
   end
 
+  sig { params(string: String).returns(String) }
   def truncate(string)
-    (w = width).zero? ? string.to_s : string.to_s[0, w - 4]
+    (w = width).zero? ? string.to_s : (string.to_s[0, w - 4] || "")
   end
 
   COLOR_CODES = {
@@ -65,18 +72,21 @@ def truncate(string)
 
   CODES = COLOR_CODES.merge(STYLE_CODES).freeze
 
+  sig { params(code: Integer).returns(T.self_type) }
   def append_to_escape_sequence(code)
     @escape_sequence ||= []
     @escape_sequence << code
     self
   end
 
+  sig { returns(String) }
   def current_escape_sequence
     return "" if @escape_sequence.nil?
 
     "\033[#{@escape_sequence.join(";")}m"
   end
 
+  sig { void }
   def reset_escape_sequence!
     @escape_sequence = nil
   end
@@ -97,6 +107,7 @@ def reset_escape_sequence!
     end
   end
 
+  sig { returns(String) }
   def to_s
     return "" unless color?
 
@@ -105,6 +116,7 @@ def to_s
     reset_escape_sequence!
   end
 
+  sig { returns(T::Boolean) }
   def color?
     return false if Homebrew::EnvConfig.no_color?
     return true if Homebrew::EnvConfig.color?

From 059122c7246915559590ef09714086ebf7cd32d3 Mon Sep 17 00:00:00 2001
From: Markus Reiter <me@reitermark.us>
Date: Sat, 10 Oct 2020 15:53:14 +0200
Subject: [PATCH 08/15] Inline type annotations for `User`.

---
 Library/Homebrew/sorbet/rbi/utils/user.rbi | 11 -----------
 Library/Homebrew/utils/user.rb             |  5 +++++
 2 files changed, 5 insertions(+), 11 deletions(-)
 delete mode 100644 Library/Homebrew/sorbet/rbi/utils/user.rbi

diff --git a/Library/Homebrew/sorbet/rbi/utils/user.rbi b/Library/Homebrew/sorbet/rbi/utils/user.rbi
deleted file mode 100644
index ef1997fafdb84..0000000000000
--- a/Library/Homebrew/sorbet/rbi/utils/user.rbi
+++ /dev/null
@@ -1,11 +0,0 @@
-# typed: strict
-
-class User < SimpleDelegator
-  include Kernel
-
-  sig { returns(T::Boolean) }
-  def gui?; end
-
-  sig { returns(T.nilable(T.attached_class)) }
-  def self.current; end
-end
diff --git a/Library/Homebrew/utils/user.rb b/Library/Homebrew/utils/user.rb
index 0973a95be4e92..238cbdd86480e 100644
--- a/Library/Homebrew/utils/user.rb
+++ b/Library/Homebrew/utils/user.rb
@@ -10,7 +10,11 @@
 #
 # @api private
 class User < SimpleDelegator
+  include Kernel
+  extend T::Sig
+
   # Return whether the user has an active GUI session.
+  sig { returns(T::Boolean) }
   def gui?
     out, _, status = system_command "who"
     return false unless status.success?
@@ -21,6 +25,7 @@ def gui?
   end
 
   # Return the current user.
+  sig { returns(T.nilable(T.attached_class)) }
   def self.current
     return @current if defined?(@current)
 

From e20c982d1a62f0cc30866422399ff9a058fb32ba Mon Sep 17 00:00:00 2001
From: Markus Reiter <me@reitermark.us>
Date: Sat, 10 Oct 2020 15:53:33 +0200
Subject: [PATCH 09/15] Inline `utils.rbi`.

---
 Library/Homebrew/sorbet/rbi/utils/utils.rbi | 20 --------------------
 Library/Homebrew/utils/link.rb              |  2 ++
 Library/Homebrew/utils/shebang.rb           |  2 ++
 Library/Homebrew/utils/tar.rb               |  2 ++
 4 files changed, 6 insertions(+), 20 deletions(-)
 delete mode 100644 Library/Homebrew/sorbet/rbi/utils/utils.rbi

diff --git a/Library/Homebrew/sorbet/rbi/utils/utils.rbi b/Library/Homebrew/sorbet/rbi/utils/utils.rbi
deleted file mode 100644
index cc0c9848ed5b7..0000000000000
--- a/Library/Homebrew/sorbet/rbi/utils/utils.rbi
+++ /dev/null
@@ -1,20 +0,0 @@
-# typed: strict
-
-module Utils
-  include Kernel
-
-  module Bottles
-  end
-
-  module Link
-    include Kernel
-  end
-
-  module Shebang
-    include Kernel
-  end
-  
-  module Tar
-    include Kernel
-  end
-end
diff --git a/Library/Homebrew/utils/link.rb b/Library/Homebrew/utils/link.rb
index 8078390f60b39..1a726d5939383 100644
--- a/Library/Homebrew/utils/link.rb
+++ b/Library/Homebrew/utils/link.rb
@@ -6,6 +6,8 @@ module Utils
   #
   # @api private
   module Link
+    include Kernel
+
     module_function
 
     def link_src_dst_dirs(src_dir, dst_dir, command, link_dir: false)
diff --git a/Library/Homebrew/utils/shebang.rb b/Library/Homebrew/utils/shebang.rb
index 762ddf5804216..2fdb721cade95 100644
--- a/Library/Homebrew/utils/shebang.rb
+++ b/Library/Homebrew/utils/shebang.rb
@@ -6,6 +6,8 @@ module Utils
   #
   # @api private
   module Shebang
+    include Kernel
+
     module_function
 
     # Specification on how to rewrite a given shebang.
diff --git a/Library/Homebrew/utils/tar.rb b/Library/Homebrew/utils/tar.rb
index df29bf9adb052..fe65d32999ff0 100644
--- a/Library/Homebrew/utils/tar.rb
+++ b/Library/Homebrew/utils/tar.rb
@@ -6,6 +6,8 @@ module Utils
   #
   # @api private
   module Tar
+    include Kernel
+
     module_function
 
     TAR_FILE_EXTENSIONS = %w[.tar .tb2 .tbz .tbz2 .tgz .tlz .txz .tZ].freeze

From d5e600e3afb0579fba7f07a24ce6fc0009475744 Mon Sep 17 00:00:00 2001
From: Markus Reiter <me@reitermark.us>
Date: Sat, 10 Oct 2020 16:06:48 +0200
Subject: [PATCH 10/15] Remove unknown `Homebrew::Error` class.

---
 Library/Homebrew/dev-cmd/pr-pull.rb  | 2 +-
 Library/Homebrew/sorbet/rbi/todo.rbi | 1 -
 2 files changed, 1 insertion(+), 2 deletions(-)

diff --git a/Library/Homebrew/dev-cmd/pr-pull.rb b/Library/Homebrew/dev-cmd/pr-pull.rb
index 0c4c0d7219243..92ab956137d3e 100644
--- a/Library/Homebrew/dev-cmd/pr-pull.rb
+++ b/Library/Homebrew/dev-cmd/pr-pull.rb
@@ -352,7 +352,7 @@ def download_artifact(url, dir, pr)
     when :env_token
       curl_args = ["--header", "Authorization: token #{token}"]
     when :none
-      raise Error, "Credentials must be set to access the Artifacts API"
+      raise "Credentials must be set to access the Artifacts API"
     end
 
     # Download the artifact as a zip file and unpack it into `dir`. This is
diff --git a/Library/Homebrew/sorbet/rbi/todo.rbi b/Library/Homebrew/sorbet/rbi/todo.rbi
index 72cca22f8351a..f5fc66d3cc01c 100644
--- a/Library/Homebrew/sorbet/rbi/todo.rbi
+++ b/Library/Homebrew/sorbet/rbi/todo.rbi
@@ -4,7 +4,6 @@
 # typed: strong
 module ::StackProf; end
 module DependencyCollector::Compat; end
-module Homebrew::Error; end
 module OS::Mac::Version::NULL; end
 module SPDX::JSON_PATH; end
 module T::InterfaceWrapper::Helpers; end

From 4382ee9d1404baba4ff4a1734e11fbd9c7826cb7 Mon Sep 17 00:00:00 2001
From: Markus Reiter <me@reitermark.us>
Date: Sat, 10 Oct 2020 16:40:36 +0200
Subject: [PATCH 11/15] Remove `files.yaml` for Sorbet.

---
 .github/workflows/sorbet.yml          |  5 +++--
 Library/Homebrew/dev-cmd/typecheck.rb | 23 ++---------------------
 Library/Homebrew/sorbet/files.yaml    |  3 ---
 docs/Manpage.md                       |  4 ++--
 manpages/brew.1                       |  4 ++--
 5 files changed, 9 insertions(+), 30 deletions(-)
 delete mode 100644 Library/Homebrew/sorbet/files.yaml

diff --git a/.github/workflows/sorbet.yml b/.github/workflows/sorbet.yml
index 2266c178bb5dc..065cf9c65f716 100644
--- a/.github/workflows/sorbet.yml
+++ b/.github/workflows/sorbet.yml
@@ -1,4 +1,4 @@
-name: Update Sorbet-related files
+name: Update Sorbet files
 on:
   push:
     paths:
@@ -39,7 +39,8 @@ jobs:
 
           if brew typecheck --update --fail-if-not-changed; then
             git add "$GITHUB_WORKSPACE/Library/Homebrew/sorbet"
-            git commit -m "sorbet: Update RBI files and prune files.yaml." -m "Autogenerated by [a scheduled GitHub Action](https://github.com/Homebrew/brew/blob/master/.github/workflows/sorbet.yml)."
+            git commit -m "sorbet: Update RBI files." \
+                       -m "Autogenerated by the [sorbet](https://github.com/Homebrew/brew/blob/master/.github/workflows/sorbet.yml) workflow."
             echo "::set-output name=committed::true"
             if [ -n "$BRANCH_EXISTS" ]; then
               echo "::set-output name=pull_request::true"
diff --git a/Library/Homebrew/dev-cmd/typecheck.rb b/Library/Homebrew/dev-cmd/typecheck.rb
index b4af45936c10d..c8c45fa88ba9c 100644
--- a/Library/Homebrew/dev-cmd/typecheck.rb
+++ b/Library/Homebrew/dev-cmd/typecheck.rb
@@ -6,8 +6,6 @@
 module Homebrew
   module_function
 
-  SORBET_FILES_YAML = "sorbet/files.yaml"
-
   def typecheck_args
     Homebrew::CLI::Parser.new do
       usage_banner <<~EOS
@@ -18,10 +16,10 @@ def typecheck_args
       switch "-q", "--quiet",
              description: "Silence all non-critical errors."
       switch "--update",
-             description: "Update RBI files and prune #{SORBET_FILES_YAML}"
+             description: "Update RBI files."
       switch "--fail-if-not-changed",
              description: "Return a failing status code if all gems are up to date " \
-                          "and gem definitions do not need a tapioca update"
+                          "and gem definitions do not need a tapioca update."
       flag   "--dir=",
              description: "Typecheck all files in a specific directory."
       flag   "--file=",
@@ -41,21 +39,6 @@ def typecheck
 
     HOMEBREW_LIBRARY_PATH.cd do
       if args.update?
-        ohai "Checking for deleted filenames in #{SORBET_FILES_YAML}..."
-        lines_to_keep = []
-        sorbet_keywords = ["true:", "false:", "strict:", "strong:"]
-
-        File.readlines(SORBET_FILES_YAML).map(&:chomp).each do |line|
-          if sorbet_keywords.include?(line) || line.blank?
-            lines_to_keep << line
-          elsif line.end_with?(".rb")
-            filepath = line.split(" ").last
-            lines_to_keep << line if File.exist?(filepath)
-          end
-
-          File.write(SORBET_FILES_YAML, "#{lines_to_keep.join("\n")}\n")
-        end
-
         ohai "Updating Tapioca RBI files..."
         system "bundle", "exec", "tapioca", "sync"
         system "bundle", "exec", "srb", "rbi", "hidden-definitions"
@@ -73,8 +56,6 @@ def typecheck
         cd("sorbet")
         srb_exec += ["--file", "../#{args.file}"] if args.file
         srb_exec += ["--dir", "../#{args.dir}"] if args.dir
-      else
-        srb_exec += ["--typed-override", SORBET_FILES_YAML]
       end
       Homebrew.failed = !system(*srb_exec)
     end
diff --git a/Library/Homebrew/sorbet/files.yaml b/Library/Homebrew/sorbet/files.yaml
deleted file mode 100644
index b3db036f73deb..0000000000000
--- a/Library/Homebrew/sorbet/files.yaml
+++ /dev/null
@@ -1,3 +0,0 @@
-false: []
-true: []
-strict: []
diff --git a/docs/Manpage.md b/docs/Manpage.md
index ad972b3e1e657..63c1956acf273 100644
--- a/docs/Manpage.md
+++ b/docs/Manpage.md
@@ -1258,9 +1258,9 @@ Check for typechecking errors using Sorbet.
 * `-q`, `--quiet`:
   Silence all non-critical errors.
 * `--update`:
-  Update RBI files and prune sorbet/files.yaml
+  Update RBI files.
 * `--fail-if-not-changed`:
-  Return a failing status code if all gems are up to date and gem definitions do not need a tapioca update
+  Return a failing status code if all gems are up to date and gem definitions do not need a tapioca update.
 * `--dir`:
   Typecheck all files in a specific directory.
 * `--file`:
diff --git a/manpages/brew.1 b/manpages/brew.1
index f8d8da44729c5..eff7c8d27e070 100644
--- a/manpages/brew.1
+++ b/manpages/brew.1
@@ -1743,11 +1743,11 @@ Silence all non\-critical errors\.
 .
 .TP
 \fB\-\-update\fR
-Update RBI files and prune sorbet/files\.yaml
+Update RBI files\.
 .
 .TP
 \fB\-\-fail\-if\-not\-changed\fR
-Return a failing status code if all gems are up to date and gem definitions do not need a tapioca update
+Return a failing status code if all gems are up to date and gem definitions do not need a tapioca update\.
 .
 .TP
 \fB\-\-dir\fR

From e509b1317ee8f1dea24c2a3c02e3a8e96393d904 Mon Sep 17 00:00:00 2001
From: Markus Reiter <me@reitermark.us>
Date: Sat, 10 Oct 2020 17:53:18 +0200
Subject: [PATCH 12/15] Fix `svn_spec`.

---
 Library/Homebrew/test/utils/svn_spec.rb | 10 ++--------
 1 file changed, 2 insertions(+), 8 deletions(-)

diff --git a/Library/Homebrew/test/utils/svn_spec.rb b/Library/Homebrew/test/utils/svn_spec.rb
index f4ec8b7f369c4..a5a4482ef20b7 100644
--- a/Library/Homebrew/test/utils/svn_spec.rb
+++ b/Library/Homebrew/test/utils/svn_spec.rb
@@ -44,17 +44,11 @@
       end
 
       it "returns false when remote does not exist" do
-        expect(described_class).not_to be_remote_exists(HOMEBREW_CACHE/"install")
+        expect(described_class).not_to be_remote_exists("blah")
       end
 
       it "returns true when remote exists", :needs_network, :needs_svn do
-        HOMEBREW_CACHE.cd do
-          system HOMEBREW_SHIMS_PATH/"scm/svn", "checkout",
-                 "--non-interactive", "--trust-server-cert", "--quiet",
-                 "https://github.com/Homebrew/install"
-        end
-
-        expect(described_class).to be_remote_exists(HOMEBREW_CACHE/"install")
+        expect(described_class).to be_remote_exists("https://github.com/Homebrew/install")
       end
     end
   end

From 61b79318ed089b5010501e2cbf163fd8e48e2dfc Mon Sep 17 00:00:00 2001
From: Markus Reiter <me@reitermark.us>
Date: Sat, 10 Oct 2020 17:53:31 +0200
Subject: [PATCH 13/15] Move `include Kernel` into `.rbi` files again and split
 up existing `.rbi` files.

---
 Library/Homebrew/cli/args.rbi                 |  29 +++
 Library/Homebrew/compat/cli/parser.rbi        |  15 ++
 .../Homebrew/compat/dependencies_helpers.rbi  |   9 +
 Library/Homebrew/compat/extend/nil.rbi        |   7 +
 Library/Homebrew/compat/extend/string.rbi     |   7 +
 Library/Homebrew/compat/formula.rbi           |  11 +
 Library/Homebrew/compat/os/mac.rbi            |  11 +
 Library/Homebrew/dependable.rbi               |   5 +
 Library/Homebrew/dependencies_helpers.rbi     |   5 +
 .../Homebrew/extend/os/linux/system_config.rb |   3 +
 .../Homebrew/extend/os/mac/system_config.rb   |   4 +
 Library/Homebrew/global.rbi                   |   5 +
 Library/Homebrew/help.rbi                     |   7 +
 Library/Homebrew/install.rbi                  |   7 +
 Library/Homebrew/language/perl.rbi            |   9 +
 Library/Homebrew/os/linux.rbi                 |   7 +
 Library/Homebrew/os/mac.rbi                   |   7 +
 Library/Homebrew/sorbet/rbi/cli.rbi           |  37 ---
 Library/Homebrew/sorbet/rbi/homebrew.rbi      |  65 ------
 Library/Homebrew/sorbet/rbi/os.rbi            |  22 --
 Library/Homebrew/sorbet/tapioca/require.rb    |   2 +-
 Library/Homebrew/system_command.rb            |  27 ++-
 Library/Homebrew/system_config.rb             |   3 +
 Library/Homebrew/unpack_strategy.rb           |   4 +
 Library/Homebrew/unpack_strategy/fossil.rb    |   3 +
 Library/Homebrew/unpack_strategy/tar.rb       |   3 +
 Library/Homebrew/utils/inreplace.rb           |   1 -
 Library/Homebrew/utils/inreplace.rbi          |   7 +
 Library/Homebrew/utils/link.rb                |   2 -
 Library/Homebrew/utils/link.rbi               |   7 +
 Library/Homebrew/utils/shebang.rb             |   2 -
 Library/Homebrew/utils/shebang.rbi            |   7 +
 Library/Homebrew/utils/shell.rb               |   1 -
 Library/Homebrew/utils/shell.rbi              |   7 +
 Library/Homebrew/utils/svn.rb                 |  46 ++--
 Library/Homebrew/utils/tar.rb                 |  44 ++--
 Library/Homebrew/utils/tty.rb                 | 210 +++++++++---------
 Library/Homebrew/utils/user.rb                |   3 +-
 38 files changed, 353 insertions(+), 298 deletions(-)
 create mode 100644 Library/Homebrew/cli/args.rbi
 create mode 100644 Library/Homebrew/compat/cli/parser.rbi
 create mode 100644 Library/Homebrew/compat/dependencies_helpers.rbi
 create mode 100644 Library/Homebrew/compat/extend/nil.rbi
 create mode 100644 Library/Homebrew/compat/extend/string.rbi
 create mode 100644 Library/Homebrew/compat/formula.rbi
 create mode 100644 Library/Homebrew/compat/os/mac.rbi
 create mode 100644 Library/Homebrew/dependable.rbi
 create mode 100644 Library/Homebrew/dependencies_helpers.rbi
 create mode 100644 Library/Homebrew/global.rbi
 create mode 100644 Library/Homebrew/help.rbi
 create mode 100644 Library/Homebrew/install.rbi
 create mode 100644 Library/Homebrew/language/perl.rbi
 create mode 100644 Library/Homebrew/os/linux.rbi
 create mode 100644 Library/Homebrew/os/mac.rbi
 delete mode 100644 Library/Homebrew/sorbet/rbi/cli.rbi
 delete mode 100644 Library/Homebrew/sorbet/rbi/homebrew.rbi
 delete mode 100644 Library/Homebrew/sorbet/rbi/os.rbi
 create mode 100644 Library/Homebrew/utils/inreplace.rbi
 create mode 100644 Library/Homebrew/utils/link.rbi
 create mode 100644 Library/Homebrew/utils/shebang.rbi
 create mode 100644 Library/Homebrew/utils/shell.rbi

diff --git a/Library/Homebrew/cli/args.rbi b/Library/Homebrew/cli/args.rbi
new file mode 100644
index 0000000000000..2314e9c8f3358
--- /dev/null
+++ b/Library/Homebrew/cli/args.rbi
@@ -0,0 +1,29 @@
+# typed: strict
+
+module Homebrew
+  module CLI
+    class Args < OpenStruct
+      def devel?; end
+
+      def HEAD?; end
+
+      def include_test?; end
+
+      def build_bottle?; end
+
+      def build_universal?; end
+
+      def build_from_source?; end
+
+      def named_args; end
+
+      def force_bottle?; end
+
+      def debug?; end
+
+      def quiet?; end
+
+      def verbose?; end
+    end
+  end
+end
diff --git a/Library/Homebrew/compat/cli/parser.rbi b/Library/Homebrew/compat/cli/parser.rbi
new file mode 100644
index 0000000000000..39061bb7980c9
--- /dev/null
+++ b/Library/Homebrew/compat/cli/parser.rbi
@@ -0,0 +1,15 @@
+# typed: strict
+
+module Homebrew
+  module CLI
+    class Parser
+      module Compat
+        include Kernel
+
+        module DeprecatedArgs
+          include Kernel
+        end
+      end
+    end
+  end
+end
diff --git a/Library/Homebrew/compat/dependencies_helpers.rbi b/Library/Homebrew/compat/dependencies_helpers.rbi
new file mode 100644
index 0000000000000..3ea83b62b9836
--- /dev/null
+++ b/Library/Homebrew/compat/dependencies_helpers.rbi
@@ -0,0 +1,9 @@
+# typed: strict
+
+module DependenciesHelpers
+  module Compat
+    include Kernel
+
+    def args_includes_ignores(args); end
+  end
+end
diff --git a/Library/Homebrew/compat/extend/nil.rbi b/Library/Homebrew/compat/extend/nil.rbi
new file mode 100644
index 0000000000000..0a0adb9756caf
--- /dev/null
+++ b/Library/Homebrew/compat/extend/nil.rbi
@@ -0,0 +1,7 @@
+# typed: strict
+
+class NilClass
+  module Compat
+    include Kernel
+  end
+end
diff --git a/Library/Homebrew/compat/extend/string.rbi b/Library/Homebrew/compat/extend/string.rbi
new file mode 100644
index 0000000000000..4851c5b1274ae
--- /dev/null
+++ b/Library/Homebrew/compat/extend/string.rbi
@@ -0,0 +1,7 @@
+# typed: strict
+
+class String
+  module Compat
+    include Kernel
+  end
+end
diff --git a/Library/Homebrew/compat/formula.rbi b/Library/Homebrew/compat/formula.rbi
new file mode 100644
index 0000000000000..976ddb4a1298c
--- /dev/null
+++ b/Library/Homebrew/compat/formula.rbi
@@ -0,0 +1,11 @@
+# typed: strict
+
+class Formula
+  module Compat
+    include Kernel
+
+    def any_installed_keg; end
+
+    def latest_installed_prefix; end
+  end
+end
diff --git a/Library/Homebrew/compat/os/mac.rbi b/Library/Homebrew/compat/os/mac.rbi
new file mode 100644
index 0000000000000..b6156fa2e8e7d
--- /dev/null
+++ b/Library/Homebrew/compat/os/mac.rbi
@@ -0,0 +1,11 @@
+# typed: strict
+
+module OS
+  module Mac
+    class << self
+      module Compat
+        include Kernel
+      end
+    end
+  end
+end
diff --git a/Library/Homebrew/dependable.rbi b/Library/Homebrew/dependable.rbi
new file mode 100644
index 0000000000000..c8eda0640b29f
--- /dev/null
+++ b/Library/Homebrew/dependable.rbi
@@ -0,0 +1,5 @@
+# typed: strict
+
+module Dependable
+  def tags; end
+end
diff --git a/Library/Homebrew/dependencies_helpers.rbi b/Library/Homebrew/dependencies_helpers.rbi
new file mode 100644
index 0000000000000..f2226a40f4044
--- /dev/null
+++ b/Library/Homebrew/dependencies_helpers.rbi
@@ -0,0 +1,5 @@
+# typed: strict
+
+module DependenciesHelpers
+  include Kernel
+end
diff --git a/Library/Homebrew/extend/os/linux/system_config.rb b/Library/Homebrew/extend/os/linux/system_config.rb
index 154c805a1ae5f..6c93d2a4fa746 100644
--- a/Library/Homebrew/extend/os/linux/system_config.rb
+++ b/Library/Homebrew/extend/os/linux/system_config.rb
@@ -3,8 +3,11 @@
 
 require "formula"
 require "os/linux/glibc"
+require "system_command"
 
 module SystemConfig
+  include SystemCommand::Mixin
+
   HOST_RUBY_PATH = "/usr/bin/ruby"
 
   class << self
diff --git a/Library/Homebrew/extend/os/mac/system_config.rb b/Library/Homebrew/extend/os/mac/system_config.rb
index 3ea619e2dbb3e..6f70e60597e85 100644
--- a/Library/Homebrew/extend/os/mac/system_config.rb
+++ b/Library/Homebrew/extend/os/mac/system_config.rb
@@ -1,8 +1,12 @@
 # typed: true
 # frozen_string_literal: true
 
+require "system_command"
+
 module SystemConfig
   class << self
+    include SystemCommand::Mixin
+
     undef describe_java, describe_homebrew_ruby
 
     def describe_java
diff --git a/Library/Homebrew/global.rbi b/Library/Homebrew/global.rbi
new file mode 100644
index 0000000000000..1557c3b769d56
--- /dev/null
+++ b/Library/Homebrew/global.rbi
@@ -0,0 +1,5 @@
+# typed: strict
+
+module Homebrew
+  include Kernel
+end
diff --git a/Library/Homebrew/help.rbi b/Library/Homebrew/help.rbi
new file mode 100644
index 0000000000000..9db873c525c58
--- /dev/null
+++ b/Library/Homebrew/help.rbi
@@ -0,0 +1,7 @@
+# typed: strict
+
+module Homebrew
+  module Help
+    include Kernel
+  end
+end
diff --git a/Library/Homebrew/install.rbi b/Library/Homebrew/install.rbi
new file mode 100644
index 0000000000000..5208127284167
--- /dev/null
+++ b/Library/Homebrew/install.rbi
@@ -0,0 +1,7 @@
+# typed: strict
+
+module Homebrew
+  module Install
+    include Kernel
+  end
+end
diff --git a/Library/Homebrew/language/perl.rbi b/Library/Homebrew/language/perl.rbi
new file mode 100644
index 0000000000000..9be98f1896413
--- /dev/null
+++ b/Library/Homebrew/language/perl.rbi
@@ -0,0 +1,9 @@
+# typed: strict
+
+module Language
+  module Perl
+    module Shebang
+      include Kernel
+    end
+  end
+end
diff --git a/Library/Homebrew/os/linux.rbi b/Library/Homebrew/os/linux.rbi
new file mode 100644
index 0000000000000..b6f31646830cd
--- /dev/null
+++ b/Library/Homebrew/os/linux.rbi
@@ -0,0 +1,7 @@
+# typed: strict
+
+module OS
+  module Linux
+    include ::Kernel
+  end
+end
diff --git a/Library/Homebrew/os/mac.rbi b/Library/Homebrew/os/mac.rbi
new file mode 100644
index 0000000000000..85a546f554d48
--- /dev/null
+++ b/Library/Homebrew/os/mac.rbi
@@ -0,0 +1,7 @@
+# typed: strict
+
+module OS
+  module Mac
+    include Kernel
+  end
+end
diff --git a/Library/Homebrew/sorbet/rbi/cli.rbi b/Library/Homebrew/sorbet/rbi/cli.rbi
deleted file mode 100644
index f920abb0a5649..0000000000000
--- a/Library/Homebrew/sorbet/rbi/cli.rbi
+++ /dev/null
@@ -1,37 +0,0 @@
-# typed: strict
-
-module Homebrew::CLI
-  class Args < OpenStruct
-    def devel?; end
-
-    def HEAD?; end
-
-    def include_test?; end
-
-    def build_bottle?; end
-
-    def build_universal?; end
-
-    def build_from_source?; end
-
-    def named_args; end
-
-    def force_bottle?; end
-
-    def debug?; end
-
-    def quiet?; end
-
-    def verbose?; end
-  end
-
-
-  class Parser
-    module Compat
-      include Kernel
-      module DeprecatedArgs
-        include Kernel
-      end
-    end
-  end
-end
diff --git a/Library/Homebrew/sorbet/rbi/homebrew.rbi b/Library/Homebrew/sorbet/rbi/homebrew.rbi
deleted file mode 100644
index 6ada3bacffef6..0000000000000
--- a/Library/Homebrew/sorbet/rbi/homebrew.rbi
+++ /dev/null
@@ -1,65 +0,0 @@
-# typed: strict
-
-module Homebrew
-  include Kernel
-end
-
-module Homebrew::Help
-  include Kernel
-end
-
-module Homebrew::Fetch
-  def args; end
-end
-
-module Homebrew::Install
-  include Kernel
-end
-
-module Language::Perl::Shebang
-  include Kernel
-end
-
-module Dependable
-  def tags; end
-end
-
-module DependenciesHelpers
-  include Kernel
-
-  module Compat
-    include Kernel
-
-    def args_includes_ignores(args); end
-  end
-end
-
-class Formula
-  module Compat
-    include Kernel
-
-    def latest_version_installed?; end
-
-    def active_spec; end
-
-    def any_installed_keg; end
-
-    def latest_installed_prefix; end
-
-    def patches; end
-  end
-end
-
-class NilClass
-  module Compat
-    include Kernel
-  end
-end
-
-class String
-  module Compat
-    include Kernel
-
-    def chomp; end
-  end
-end
diff --git a/Library/Homebrew/sorbet/rbi/os.rbi b/Library/Homebrew/sorbet/rbi/os.rbi
deleted file mode 100644
index f4b85f1f7e6b4..0000000000000
--- a/Library/Homebrew/sorbet/rbi/os.rbi
+++ /dev/null
@@ -1,22 +0,0 @@
-# typed: true
-
-module OS
-  module Linux
-    include Kernel
-
-    def which(cmd, path = ENV["PATH"])
-    end
-  end
-
-  module Mac
-    include Kernel
-  end
-end
-
-module OS::Mac
-  class << self
-    module Compat
-      include Kernel
-    end
-  end
-end
diff --git a/Library/Homebrew/sorbet/tapioca/require.rb b/Library/Homebrew/sorbet/tapioca/require.rb
index fe1388b13af31..536e027e915ac 100644
--- a/Library/Homebrew/sorbet/tapioca/require.rb
+++ b/Library/Homebrew/sorbet/tapioca/require.rb
@@ -1,4 +1,4 @@
-# typed: false
+# typed: strict
 # frozen_string_literal: true
 
 # Add your extra requires here
diff --git a/Library/Homebrew/system_command.rb b/Library/Homebrew/system_command.rb
index 33f3781d7b88e..8ad098df1ad59 100644
--- a/Library/Homebrew/system_command.rb
+++ b/Library/Homebrew/system_command.rb
@@ -7,26 +7,25 @@
 require "shellwords"
 
 require "extend/io"
+require "extend/predicable"
 require "extend/hash_validator"
 using HashValidator
 
-# Make `system_command` available everywhere.
+# Class for running sub-processes and capturing their output and exit status.
 #
 # @api private
-module Kernel
-  def system_command(*args)
-    SystemCommand.run(*args)
-  end
+class SystemCommand
+  # Helper functions for calling `SystemCommand.run`.
+  module Mixin
+    def system_command(*args)
+      SystemCommand.run(*args)
+    end
 
-  def system_command!(*args)
-    SystemCommand.run!(*args)
+    def system_command!(*args)
+      SystemCommand.run!(*args)
+    end
   end
-end
 
-# Class for running sub-processes and capturing their output and exit status.
-#
-# @api private
-class SystemCommand
   include Context
   extend Predicable
 
@@ -248,3 +247,7 @@ def warn_plist_garbage(garbage)
     private :warn_plist_garbage
   end
 end
+
+# Make `system_command` available everywhere.
+# FIXME: Include this explicitly only where it is needed.
+include SystemCommand::Mixin # rubocop:disable Style/MixinUsage
diff --git a/Library/Homebrew/system_config.rb b/Library/Homebrew/system_config.rb
index 5af0d7dbd24ba..02230bb9b4e55 100644
--- a/Library/Homebrew/system_config.rb
+++ b/Library/Homebrew/system_config.rb
@@ -5,12 +5,15 @@
 require "software_spec"
 require "development_tools"
 require "extend/ENV"
+require "system_command"
 
 # Helper module for querying information about the system configuration.
 #
 # @api private
 module SystemConfig
   class << self
+    include SystemCommand::Mixin
+
     def clang
       @clang ||= if DevelopmentTools.installed?
         DevelopmentTools.clang_version
diff --git a/Library/Homebrew/unpack_strategy.rb b/Library/Homebrew/unpack_strategy.rb
index f76069f3b9317..774d29615657b 100644
--- a/Library/Homebrew/unpack_strategy.rb
+++ b/Library/Homebrew/unpack_strategy.rb
@@ -1,10 +1,14 @@
 # typed: false
 # frozen_string_literal: true
 
+require "system_command"
+
 # Module containing all available strategies for unpacking archives.
 #
 # @api private
 module UnpackStrategy
+  include SystemCommand::Mixin
+
   # Helper module for identifying the file type.
   module Magic
     # Length of the longest regex (currently Tar).
diff --git a/Library/Homebrew/unpack_strategy/fossil.rb b/Library/Homebrew/unpack_strategy/fossil.rb
index c8f165fdd609b..f421ee1be8cda 100644
--- a/Library/Homebrew/unpack_strategy/fossil.rb
+++ b/Library/Homebrew/unpack_strategy/fossil.rb
@@ -1,10 +1,13 @@
 # typed: true
 # frozen_string_literal: true
 
+require "system_command"
+
 module UnpackStrategy
   # Strategy for unpacking Fossil repositories.
   class Fossil
     include UnpackStrategy
+    extend SystemCommand::Mixin
 
     using Magic
 
diff --git a/Library/Homebrew/unpack_strategy/tar.rb b/Library/Homebrew/unpack_strategy/tar.rb
index 7e7b407bcd3a4..a31550b75def9 100644
--- a/Library/Homebrew/unpack_strategy/tar.rb
+++ b/Library/Homebrew/unpack_strategy/tar.rb
@@ -1,10 +1,13 @@
 # typed: true
 # frozen_string_literal: true
 
+require "system_command"
+
 module UnpackStrategy
   # Strategy for unpacking tar archives.
   class Tar
     include UnpackStrategy
+    extend SystemCommand::Mixin
 
     using Magic
 
diff --git a/Library/Homebrew/utils/inreplace.rb b/Library/Homebrew/utils/inreplace.rb
index f2827a89794d8..d130871167ecd 100644
--- a/Library/Homebrew/utils/inreplace.rb
+++ b/Library/Homebrew/utils/inreplace.rb
@@ -8,7 +8,6 @@ module Utils
   #
   # @api private
   module Inreplace
-    include Kernel
     extend T::Sig
 
     # Error during replacement.
diff --git a/Library/Homebrew/utils/inreplace.rbi b/Library/Homebrew/utils/inreplace.rbi
new file mode 100644
index 0000000000000..02542091d2c68
--- /dev/null
+++ b/Library/Homebrew/utils/inreplace.rbi
@@ -0,0 +1,7 @@
+# typed: strict
+
+module Utils
+  module Inreplace
+    include Kernel
+  end
+end
diff --git a/Library/Homebrew/utils/link.rb b/Library/Homebrew/utils/link.rb
index 1a726d5939383..8078390f60b39 100644
--- a/Library/Homebrew/utils/link.rb
+++ b/Library/Homebrew/utils/link.rb
@@ -6,8 +6,6 @@ module Utils
   #
   # @api private
   module Link
-    include Kernel
-
     module_function
 
     def link_src_dst_dirs(src_dir, dst_dir, command, link_dir: false)
diff --git a/Library/Homebrew/utils/link.rbi b/Library/Homebrew/utils/link.rbi
new file mode 100644
index 0000000000000..0b88a48d161d5
--- /dev/null
+++ b/Library/Homebrew/utils/link.rbi
@@ -0,0 +1,7 @@
+# typed: strict
+
+module Utils
+  module Link
+    include Kernel
+  end
+end
diff --git a/Library/Homebrew/utils/shebang.rb b/Library/Homebrew/utils/shebang.rb
index 2fdb721cade95..762ddf5804216 100644
--- a/Library/Homebrew/utils/shebang.rb
+++ b/Library/Homebrew/utils/shebang.rb
@@ -6,8 +6,6 @@ module Utils
   #
   # @api private
   module Shebang
-    include Kernel
-
     module_function
 
     # Specification on how to rewrite a given shebang.
diff --git a/Library/Homebrew/utils/shebang.rbi b/Library/Homebrew/utils/shebang.rbi
new file mode 100644
index 0000000000000..9cdb0b2007155
--- /dev/null
+++ b/Library/Homebrew/utils/shebang.rbi
@@ -0,0 +1,7 @@
+# typed: strict
+
+module Utils
+  module Shebang
+    include Kernel
+  end
+end
diff --git a/Library/Homebrew/utils/shell.rb b/Library/Homebrew/utils/shell.rb
index c469c3ad94f66..47a22749de8da 100644
--- a/Library/Homebrew/utils/shell.rb
+++ b/Library/Homebrew/utils/shell.rb
@@ -3,7 +3,6 @@
 
 module Utils
   module Shell
-    include Kernel
     extend T::Sig
 
     module_function
diff --git a/Library/Homebrew/utils/shell.rbi b/Library/Homebrew/utils/shell.rbi
new file mode 100644
index 0000000000000..b860bc1190ed9
--- /dev/null
+++ b/Library/Homebrew/utils/shell.rbi
@@ -0,0 +1,7 @@
+# typed: strict
+
+module Utils
+  module Shell
+    include Kernel
+  end
+end
diff --git a/Library/Homebrew/utils/svn.rb b/Library/Homebrew/utils/svn.rb
index febc3dee9a606..e6f9fcd228d4d 100644
--- a/Library/Homebrew/utils/svn.rb
+++ b/Library/Homebrew/utils/svn.rb
@@ -8,36 +8,36 @@ module Utils
   #
   # @api private
   module Svn
-    include Kernel
-    extend T::Sig
+    class << self
+      extend T::Sig
 
-    module_function
+      include SystemCommand::Mixin
 
-    sig { returns(T::Boolean) }
-    def available?
-      version.present?
-    end
+      sig { returns(T::Boolean) }
+      def available?
+        version.present?
+      end
 
-    sig { returns(T.nilable(String)) }
-    def version
-      return @version if defined?(@version)
+      sig { returns(T.nilable(String)) }
+      def version
+        return @version if defined?(@version)
 
-      stdout, _, status = system_command(HOMEBREW_SHIMS_PATH/"scm/svn", args: ["--version"], print_stderr: false)
-      @version = status.success? ? stdout.chomp[/svn, version (\d+(?:\.\d+)*)/, 1] : nil
-    end
+        stdout, _, status = system_command(HOMEBREW_SHIMS_PATH/"scm/svn", args: ["--version"], print_stderr: false)
+        @version = status.success? ? stdout.chomp[/svn, version (\d+(?:\.\d+)*)/, 1] : nil
+      end
 
-    sig { params(url: String).returns(T::Boolean) }
-    def remote_exists?(url)
-      return true unless available?
+      sig { params(url: String).returns(T::Boolean) }
+      def remote_exists?(url)
+        return true unless available?
 
-      # OK to unconditionally trust here because we're just checking if
-      # a URL exists.
-      quiet_system "svn", "ls", url, "--depth", "empty",
-                   "--non-interactive", "--trust-server-cert"
-    end
+        # OK to unconditionally trust here because we're just checking if a URL exists.
+        system_command("svn", args: ["ls", url, "--depth", "empty",
+                                     "--non-interactive", "--trust-server-cert"], print_stderr: false).success?
+      end
 
-    def clear_version_cache
-      remove_instance_variable(:@version) if defined?(@version)
+      def clear_version_cache
+        remove_instance_variable(:@version) if defined?(@version)
+      end
     end
   end
 end
diff --git a/Library/Homebrew/utils/tar.rb b/Library/Homebrew/utils/tar.rb
index fe65d32999ff0..ced4ed5234ea8 100644
--- a/Library/Homebrew/utils/tar.rb
+++ b/Library/Homebrew/utils/tar.rb
@@ -6,36 +6,34 @@ module Utils
   #
   # @api private
   module Tar
-    include Kernel
+    class << self
+      TAR_FILE_EXTENSIONS = %w[.tar .tb2 .tbz .tbz2 .tgz .tlz .txz .tZ].freeze
 
-    module_function
+      def available?
+        executable.present?
+      end
 
-    TAR_FILE_EXTENSIONS = %w[.tar .tb2 .tbz .tbz2 .tgz .tlz .txz .tZ].freeze
+      def executable
+        return @executable if defined?(@executable)
 
-    def available?
-      executable.present?
-    end
-
-    def executable
-      return @executable if defined?(@executable)
+        gnu_tar_gtar_path = HOMEBREW_PREFIX/"opt/gnu-tar/bin/gtar"
+        gnu_tar_gtar = gnu_tar_gtar_path if gnu_tar_gtar_path.executable?
+        @executable = which("gtar") || gnu_tar_gtar || which("tar")
+      end
 
-      gnu_tar_gtar_path = HOMEBREW_PREFIX/"opt/gnu-tar/bin/gtar"
-      gnu_tar_gtar = gnu_tar_gtar_path if gnu_tar_gtar_path.executable?
-      @executable = which("gtar") || gnu_tar_gtar || which("tar")
-    end
+      def validate_file(path)
+        return unless available?
 
-    def validate_file(path)
-      return unless available?
+        path = Pathname.new(path)
+        return unless TAR_FILE_EXTENSIONS.include? path.extname
+        return if Utils.popen_read(executable, "-tf", path).match?(%r{/.*\.})
 
-      path = Pathname.new(path)
-      return unless TAR_FILE_EXTENSIONS.include? path.extname
-      return if Utils.popen_read(executable, "-tf", path).match?(%r{/.*\.})
-
-      odie "#{path} is not a valid tar file!"
-    end
+        odie "#{path} is not a valid tar file!"
+      end
 
-    def clear_executable_cache
-      remove_instance_variable(:@executable) if defined?(@executable)
+      def clear_executable_cache
+        remove_instance_variable(:@executable) if defined?(@executable)
+      end
     end
   end
 end
diff --git a/Library/Homebrew/utils/tty.rb b/Library/Homebrew/utils/tty.rb
index 991c79336b74e..01ebc1b21487a 100644
--- a/Library/Homebrew/utils/tty.rb
+++ b/Library/Homebrew/utils/tty.rb
@@ -5,122 +5,116 @@
 #
 # @api private
 module Tty
-  include Kernel
-  extend T::Sig
-
   @stream = $stdout
 
-  module_function
-
-  sig { params(stream: IO, _block: T.proc.params(arg0: IO).void).void }
-  def with(stream, &_block)
-    previous_stream = @stream
-    @stream = stream
-
-    yield stream
-  ensure
-    @stream = previous_stream
-  end
-
-  sig { params(string: String).returns(String) }
-  def strip_ansi(string)
-    string.gsub(/\033\[\d+(;\d+)*m/, "")
-  end
-
-  sig { returns(Integer) }
-  def width
-    @width ||= begin
-      _, width = `/bin/stty size 2>/dev/null`.split
-      width, = `/usr/bin/tput cols 2>/dev/null`.split if width.to_i.zero?
-      width ||= 80
-      width.to_i
+  class << self
+    extend T::Sig
+
+    sig { params(stream: T.any(IO, StringIO), _block: T.proc.params(arg0: T.any(IO, StringIO)).void).void }
+    def with(stream, &_block)
+      previous_stream = @stream
+      @stream = stream
+
+      yield stream
+    ensure
+      @stream = previous_stream
+    end
+
+    sig { params(string: String).returns(String) }
+    def strip_ansi(string)
+      string.gsub(/\033\[\d+(;\d+)*m/, "")
+    end
+
+    sig { returns(Integer) }
+    def width
+      @width ||= begin
+        _, width = `/bin/stty size 2>/dev/null`.split
+        width, = `/usr/bin/tput cols 2>/dev/null`.split if width.to_i.zero?
+        width ||= 80
+        width.to_i
+      end
+    end
+
+    sig { params(string: String).returns(String) }
+    def truncate(string)
+      (w = width).zero? ? string.to_s : (string.to_s[0, w - 4] || "")
     end
-  end
-
-  sig { params(string: String).returns(String) }
-  def truncate(string)
-    (w = width).zero? ? string.to_s : (string.to_s[0, w - 4] || "")
-  end
-
-  COLOR_CODES = {
-    red:     31,
-    green:   32,
-    yellow:  33,
-    blue:    34,
-    magenta: 35,
-    cyan:    36,
-    default: 39,
-  }.freeze
-
-  STYLE_CODES = {
-    reset:         0,
-    bold:          1,
-    italic:        3,
-    underline:     4,
-    strikethrough: 9,
-    no_underline:  24,
-  }.freeze
-
-  SPECIAL_CODES = {
-    up:         "1A",
-    down:       "1B",
-    right:      "1C",
-    left:       "1D",
-    erase_line: "K",
-    erase_char: "P",
-  }.freeze
-
-  CODES = COLOR_CODES.merge(STYLE_CODES).freeze
-
-  sig { params(code: Integer).returns(T.self_type) }
-  def append_to_escape_sequence(code)
-    @escape_sequence ||= []
-    @escape_sequence << code
-    self
-  end
-
-  sig { returns(String) }
-  def current_escape_sequence
-    return "" if @escape_sequence.nil?
-
-    "\033[#{@escape_sequence.join(";")}m"
-  end
-
-  sig { void }
-  def reset_escape_sequence!
-    @escape_sequence = nil
-  end
-
-  CODES.each do |name, code|
-    define_singleton_method(name) do
-      append_to_escape_sequence(code)
+
+    COLOR_CODES = {
+      red:     31,
+      green:   32,
+      yellow:  33,
+      blue:    34,
+      magenta: 35,
+      cyan:    36,
+      default: 39,
+    }.freeze
+
+    STYLE_CODES = {
+      reset:         0,
+      bold:          1,
+      italic:        3,
+      underline:     4,
+      strikethrough: 9,
+      no_underline:  24,
+    }.freeze
+
+    SPECIAL_CODES = {
+      up:         "1A",
+      down:       "1B",
+      right:      "1C",
+      left:       "1D",
+      erase_line: "K",
+      erase_char: "P",
+    }.freeze
+
+    CODES = COLOR_CODES.merge(STYLE_CODES).freeze
+
+    sig { returns(String) }
+    def current_escape_sequence
+      return "" if @escape_sequence.nil?
+
+      "\033[#{@escape_sequence.join(";")}m"
+    end
+
+    sig { void }
+    def reset_escape_sequence!
+      @escape_sequence = nil
+    end
+
+    CODES.each do |name, code|
+      define_method(name) do
+        @escape_sequence ||= []
+        @escape_sequence << code
+        self
+      end
     end
-  end
-
-  SPECIAL_CODES.each do |name, code|
-    define_singleton_method(name) do
-      if @stream.tty?
-        "\033[#{code}"
-      else
-        ""
+
+    SPECIAL_CODES.each do |name, code|
+      define_method(name) do
+        if @stream.tty?
+          "\033[#{code}"
+        else
+          ""
+        end
       end
     end
-  end
 
-  sig { returns(String) }
-  def to_s
-    return "" unless color?
+    sig { returns(String) }
+    def to_s
+      return "" unless color?
 
-    current_escape_sequence
-  ensure
-    reset_escape_sequence!
-  end
+      current_escape_sequence
+    ensure
+      reset_escape_sequence!
+    end
 
-  sig { returns(T::Boolean) }
-  def color?
-    return false if Homebrew::EnvConfig.no_color?
-    return true if Homebrew::EnvConfig.color?
+    sig { returns(T::Boolean) }
+    def color?
+      return false if Homebrew::EnvConfig.no_color?
+      return true if Homebrew::EnvConfig.color?
 
-    @stream.tty?
-  end
+      @stream.tty?
+    end
+end
 end
diff --git a/Library/Homebrew/utils/user.rb b/Library/Homebrew/utils/user.rb
index 238cbdd86480e..c2db57e637e34 100644
--- a/Library/Homebrew/utils/user.rb
+++ b/Library/Homebrew/utils/user.rb
@@ -10,9 +10,10 @@
 #
 # @api private
 class User < SimpleDelegator
-  include Kernel
   extend T::Sig
 
+  include SystemCommand::Mixin
+
   # Return whether the user has an active GUI session.
   sig { returns(T::Boolean) }
   def gui?

From d49100487944014a2c8a554e1eff257addddf460 Mon Sep 17 00:00:00 2001
From: Markus Reiter <me@reitermark.us>
Date: Sat, 10 Oct 2020 18:17:55 +0200
Subject: [PATCH 14/15] Remove helper script.

---
 Library/add-typed.rb | 27 ---------------------------
 1 file changed, 27 deletions(-)
 delete mode 100755 Library/add-typed.rb

diff --git a/Library/add-typed.rb b/Library/add-typed.rb
deleted file mode 100755
index 6860b9e7b212c..0000000000000
--- a/Library/add-typed.rb
+++ /dev/null
@@ -1,27 +0,0 @@
-#!/usr/bin/env ruby
-
-require 'pathname'
-require 'open3'
-
-
-Dir.chdir "#{__dir__}/Homebrew"
-
-files = Pathname.glob("**/*.rb").reject { |path| path.to_s.start_with?("vendor/") }
-
-files.each do |file|
-
-  content = file.read
-
-  if content.start_with?("# typed: ")
-    puts "Already typed: #{file}"
-    next
-  end
-
-  ['strict', 'true', 'false', 'ignore'].each do |level|
-    puts "Trying #{file} with level #{level}."
-    file.write "# typed: #{level}\n#{content.strip}\n"
-
-    output, status = Open3.capture2e('brew', 'typecheck')
-    break if status.success?
-  end
-end

From 73dc98d1c75bfd9b05bc3504d12356e420038b2b Mon Sep 17 00:00:00 2001
From: Markus Reiter <me@reitermark.us>
Date: Sat, 10 Oct 2020 19:29:49 +0200
Subject: [PATCH 15/15] Adjust RuboCop rules for Sorbet.

---
 Library/.rubocop.yml          | 20 ++++++++++++++++++--
 Library/Homebrew/.rubocop.yml |  4 ----
 2 files changed, 18 insertions(+), 6 deletions(-)

diff --git a/Library/.rubocop.yml b/Library/.rubocop.yml
index 7653a9495c112..3a453e8c50b6b 100644
--- a/Library/.rubocop.yml
+++ b/Library/.rubocop.yml
@@ -12,7 +12,12 @@ AllCops:
   DisplayCopNames: false
   # enable all pending rubocops
   NewCops: enable
+  Include:
+    - '**/*.rbi'
   Exclude:
+    - 'Homebrew/sorbet/rbi/gems/**/*.rbi'
+    - 'Homebrew/sorbet/rbi/hidden-definitions/**/*.rbi'
+    - 'Homebrew/sorbet/rbi/todo.rbi'
     - 'Homebrew/bin/*'
     - 'Homebrew/vendor/**/*'
 
@@ -62,6 +67,10 @@ Naming/HeredocDelimiterNaming:
   ForbiddenDelimiters:
     - END, EOD, EOF
 
+Naming/MethodName:
+  IgnoredPatterns:
+    - '\AHEAD\?\Z'
+
 # Allow dashes in filenames.
 Naming/FileName:
   Regex: !ruby/regexp /^[\w\@\-\+\.]+(\.rb)?$/
@@ -264,9 +273,14 @@ Layout/LineLength:
                     ' "~/Library/Application Support/', '"~/Library/Caches/', '"~/Application Support',
                     ' was verified as official when first introduced to the cask']
 
-# Enable once we are using `sorbet-runtime`.
 Sorbet/FalseSigil:
-  Enabled: false
+  Exclude:
+    - 'Taps/**/*.rb'
+    - 'Homebrew/test/**/Casks/**/*.rb'
+
+Sorbet/StrictSigil:
+  Include:
+    - '**/*.rbi'
 
 # Try getting rid of these.
 Sorbet/ConstantsFromStrings:
@@ -302,6 +316,7 @@ Style/ClassVars:
 Style/Documentation:
   Exclude:
     - 'Taps/**/*'
+    - '**/*.rbi'
 
 Style/DocumentationMethod:
   Include:
@@ -313,6 +328,7 @@ Style/FrozenStringLiteralComment:
   Exclude:
     - 'Taps/*/*/{Formula,Casks,}/*.rb'
     - 'Homebrew/test/**/Casks/**/*.rb'
+    - '**/*.rbi'
 
 # TODO: remove this when possible.
 Style/GlobalVars:
diff --git a/Library/Homebrew/.rubocop.yml b/Library/Homebrew/.rubocop.yml
index 1cc3d8f3010a5..e63152052f711 100644
--- a/Library/Homebrew/.rubocop.yml
+++ b/Library/Homebrew/.rubocop.yml
@@ -45,10 +45,6 @@ Naming/PredicateName:
   # Can't rename these.
   AllowedMethods: is_32_bit?, is_64_bit?
 
-Style/FrozenStringLiteralComment:
-  Exclude:
-    - '**/Casks/**/*.rb'
-
 Style/HashAsLastArrayItem:
   Exclude:
     - 'test/utils/spdx_spec.rb'