Merge pull request #3980 from rubygems/no_bundler_gemspec_rewrite

Remove old workaround for non-git environments

.github/workflows/install-rubygems.yml

@@ -9,7 +9,7 @@ on:
       - 3.2
 
 jobs:
-  install_rubygems:
+  install_rubygems_ubuntu:
     runs-on: ubuntu-18.04
     strategy:
       fail-fast: false
@@ -52,3 +52,20 @@ jobs:
         run: if grep -q 'GET http' output.txt; then false; else true; fi
         working-directory: ./bundler
     timeout-minutes: 10
+
+  install_rubygems_windows:
+    runs-on: windows-2019
+    steps:
+      - uses: actions/checkout@v2
+      - name: Setup ruby
+        uses: ruby/setup-ruby@v1
+        with:
+          ruby-version: 2.7.1
+          bundler: none
+      - name: Install rubygems
+        run: ruby setup.rb
+        shell: bash
+      - name: Check installation didn't modify gemspec line feeds
+        run: ruby -Ilib -e'exit 1 if File.readlines("bundler/bundler.gemspec").first.end_with?("\r\n")'
+        shell: bash
+    timeout-minutes: 10

lib/rubygems/commands/setup_command.rb

@@ -394,10 +394,6 @@ def install_default_bundler_gem(bin_dir)
     specs_dir = File.join(options[:destdir], specs_dir) unless Gem.win_platform?
     mkdir_p specs_dir, :mode => 0755
 
-    # Workaround for non-git environment.
-    gemspec = File.open('bundler/bundler.gemspec', 'rb'){|f| f.read.gsub(/`git ls-files -z`/, "''") }
-    File.open('bundler/bundler.gemspec', 'w'){|f| f.write gemspec }
-
     bundler_spec = Gem::Specification.load("bundler/bundler.gemspec")
     bundler_spec.files = Dir.chdir("bundler") { Dir["{*.md,{lib,exe,man}/**/*}"] }
     bundler_spec.executables -= %w[bundler bundle_ruby]