Extend MergeToRefService for creating merge ref from the other refcreate-merge-train-ref-ce

Currently, MergeToRefService is specifically designed for
createing merge commits from source branch and target branch of
merge reqeusts. We extend this behavior to source branch and any
target ref paths.

2 files changed, 5 insertions, 4 deletions

diff --git a/lib/gitlab/git/repository.rb b/lib/gitlab/git/repository.rb
index 19b6aab1c4f..060a29be782 100644
--- a/lib/gitlab/git/repository.rb
+++ b/lib/gitlab/git/repository.rb
@@ -536,9 +536,9 @@ module Gitlab
         tags.find { |tag| tag.name == name }
       end
 
-      def merge_to_ref(user, source_sha, branch, target_ref, message)
+      def merge_to_ref(user, source_sha, branch, target_ref, message, first_parent_ref)
         wrapped_gitaly_errors do
-          gitaly_operation_client.user_merge_to_ref(user, source_sha, branch, target_ref, message)
+          gitaly_operation_client.user_merge_to_ref(user, source_sha, branch, target_ref, message, first_parent_ref)
         end
       end
 
diff --git a/lib/gitlab/gitaly_client/operation_service.rb b/lib/gitlab/gitaly_client/operation_service.rb
index b42e6cbad8d..783c2ff0915 100644
--- a/lib/gitlab/gitaly_client/operation_service.rb
+++ b/lib/gitlab/gitaly_client/operation_service.rb
@@ -100,14 +100,15 @@ module Gitlab
         end
       end
 
-      def user_merge_to_ref(user, source_sha, branch, target_ref, message)
+      def user_merge_to_ref(user, source_sha, branch, target_ref, message, first_parent_ref)
         request = Gitaly::UserMergeToRefRequest.new(
           repository: @gitaly_repo,
           source_sha: source_sha,
           branch: encode_binary(branch),
           target_ref: encode_binary(target_ref),
           user: Gitlab::Git::User.from_gitlab(user).to_gitaly,
-          message: encode_binary(message)
+          message: encode_binary(message),
+          first_parent_ref: encode_binary(first_parent_ref)
         )
 
         response = GitalyClient.call(@repository.storage, :operation_service, :user_merge_to_ref, request)