Merge pull request #18749 from Homebrew/git-committer-info

Support setting `GIT_COMMITTER_NAME` and `GIT_COMMITTER_EMAIL`

Author: MikeMcQuaid

Library/Homebrew/env_config.rb

@@ -273,11 +273,19 @@ module EnvConfig
       HOMEBREW_GITHUB_PACKAGES_USER:             {
         description: "Use this username when accessing the GitHub Packages Registry (where bottles may be stored).",
       },
+      HOMEBREW_GIT_COMMITTER_EMAIL:              {
+        description: "Set the Git committer email to this value.",
+      },
+      HOMEBREW_GIT_COMMITTER_NAME:               {
+        description: "Set the Git committer name to this value.",
+      },
       HOMEBREW_GIT_EMAIL:                        {
-        description: "Set the Git author and committer email to this value.",
+        description: "Set the Git author name and, if `HOMEBREW_GIT_COMMITTER_EMAIL` is unset, committer email to " \
+                     "this value.",
       },
       HOMEBREW_GIT_NAME:                         {
-        description: "Set the Git author and committer name to this value.",
+        description: "Set the Git author name and, if `HOMEBREW_GIT_COMMITTER_NAME` is unset, committer name to " \
+                     "this value.",
       },
       HOMEBREW_GIT_PATH:                         {
         description: "Linux only: Set this value to a new enough `git` executable for Homebrew to use.",

Library/Homebrew/sorbet/rbi/dsl/homebrew/env_config.rbi

@@ -119,10 +119,19 @@ def self.set_name_email!(author: true, committer: true)
         ENV["GIT_COMMITTER_NAME"] = Homebrew::EnvConfig.git_name if committer
       end
 
-      return unless Homebrew::EnvConfig.git_email
+      if Homebrew::EnvConfig.git_committer_name && committer
+        ENV["GIT_COMMITTER_NAME"] = Homebrew::EnvConfig.git_committer_name
+      end
+
+      if Homebrew::EnvConfig.git_email
+        ENV["GIT_AUTHOR_EMAIL"] = Homebrew::EnvConfig.git_email if author
+        ENV["GIT_COMMITTER_EMAIL"] = Homebrew::EnvConfig.git_email if committer
+      end
+
+      return unless committer
+      return unless Homebrew::EnvConfig.git_committer_email
 
-      ENV["GIT_AUTHOR_EMAIL"] = Homebrew::EnvConfig.git_email if author
-      ENV["GIT_COMMITTER_EMAIL"] = Homebrew::EnvConfig.git_email if committer
+      ENV["GIT_COMMITTER_EMAIL"] = Homebrew::EnvConfig.git_committer_email
     end
 
     def self.setup_gpg!

Library/Homebrew/utils/git.rb

@@ -756,6 +756,7 @@ def self.create_bump_pr(info, args:)
 
         safe_system "git", "add", *changed_files
         safe_system "git", "checkout", "--no-track", "-b", branch, "#{remote}/#{remote_branch}" unless args.commit?
+        Utils::Git.set_name_email!
         safe_system "git", "commit", "--no-edit", "--verbose",
                     "--message=#{commit_message}",
                     "--", *changed_files