utils/gems: handle mismatching EUID and UID for bundle installs

Homebrew · Jun 18, 2024 · 1e7cf51 · 1e7cf51
1 parent a5a9150
commit 1e7cf51
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Showing 2 changed files with 6 additions and 2 deletions.
diff --git a/Library/Homebrew/dev-cmd/install-bundler-gems.rb b/Library/Homebrew/dev-cmd/install-bundler-gems.rb
@@ -32,7 +32,6 @@ def run
           Homebrew.forget_user_gem_groups!
         end
 
-        Process::UID.change_privilege(Process.euid) if Process.euid != Process.uid
         Homebrew.install_bundler_gems!(groups:)
       end
     end

diff --git a/Library/Homebrew/utils/gems.rb b/Library/Homebrew/utils/gems.rb
@@ -300,7 +300,12 @@ def install_bundler_gems!(only_warn_on_failure: false, setup_path: true, groups:
       end
 
       bundle_installed = if bundle_install_required
-        if system bundle, "install", out: :err
+        Process.wait(fork do
+          # Native build scripts fail if EUID != UID
+          Process::UID.change_privilege(Process.euid) if Process.euid != Process.uid
+          exec bundle, "install", out: :err
+        end)
+        if $CHILD_STATUS.success?
           true
         else
           message = <<~EOS