1 files changed, 27 insertions, 0 deletions
diff --git a/lib/gitlab/gitaly_client/remote_service.rb b/lib/gitlab/gitaly_client/remote_service.rb
index e58f641d69a..58c356edfd1 100644
--- a/lib/gitlab/gitaly_client/remote_service.rb
+++ b/lib/gitlab/gitaly_client/remote_service.rb
@@ -1,6 +1,8 @@
 module Gitlab
   module GitalyClient
     class RemoteService
+      MAX_MSG_SIZE = 128.kilobytes.freeze
+
       def initialize(repository)
         @repository = repository
         @gitaly_repo = repository.gitaly_repository
@@ -38,6 +40,31 @@ module Gitlab
 
         response.result
       end
+
+      def update_remote_mirror(ref_name, only_branches_matching)
+        req_enum = Enumerator.new do |y|
+          y.yield Gitaly::UpdateRemoteMirrorRequest.new(
+            repository: @gitaly_repo,
+            ref_name: ref_name
+          )
+
+          current_size = 0
+
+          slices = only_branches_matching.slice_before do |branch_name|
+            current_size += branch_name.bytesize
+
+            next false if current_size < MAX_MSG_SIZE
+
+            current_size = 0
+          end
+
+          slices.each do |slice|
+            y.yield Gitaly::UpdateRemoteMirrorRequest.new(only_branches_matching: slice)
+          end
+        end
+
+        GitalyClient.call(@storage, :remote_service, :update_remote_mirror, req_enum)
+      end
     end
   end
 end