Merge branch 'patch-issue-#56683' into 'master'

Process up to 100 commit messages for references when pushing to a new default branch

See merge request gitlab-org/gitlab-ce!29511

app/services/git/branch_hooks_service.rb

@@ -20,8 +20,7 @@ module Git
       strong_memoize(:commits) do
         if creating_default_branch?
           # The most recent PROCESS_COMMIT_LIMIT commits in the default branch
-          offset = [count_commits_in_branch - PROCESS_COMMIT_LIMIT, 0].max
-          project.repository.commits(params[:newrev], offset: offset, limit: PROCESS_COMMIT_LIMIT)
+          project.repository.commits(params[:newrev], limit: PROCESS_COMMIT_LIMIT)
         elsif creating_branch?
           # Use the pushed commits that aren't reachable by the default branch
           # as a heuristic. This may include more commits than are actually
@@ -84,9 +83,6 @@ module Git
 
     # Schedules processing of commit messages
     def enqueue_process_commit_messages
-      # don't process commits for the initial push to the default branch
-      return if creating_default_branch?
-
       limited_commits.each do |commit|
         next unless commit.matches_cross_reference_regex?
 

changelogs/unreleased/patch-issue--56683.yml

+---
+title: Process up to 100 commit messages for references when pushing to a new default
+  branch
+merge_request: 29511
+author: Fabio Papa
+type: fixed

spec/services/git/branch_hooks_service_spec.rb

@@ -287,8 +287,8 @@ describe Git::BranchHooksService do
     context 'creating the default branch' do
       let(:oldrev) { Gitlab::Git::BLANK_SHA }
 
-      it 'does not process commit messages' do
-        expect(ProcessCommitWorker).not_to receive(:perform_async)
+      it 'processes a limited number of commit messages' do
+        expect(ProcessCommitWorker).to receive(:perform_async).once
 
         service.execute
       end