1 files changed, 24 insertions, 0 deletions
diff --git a/app/services/concerns/projects/remove_refs.rb b/app/services/concerns/projects/remove_refs.rb
new file mode 100644
index 00000000000..d133aa0ced6
--- /dev/null
+++ b/app/services/concerns/projects/remove_refs.rb
@@ -0,0 +1,24 @@
+# frozen_string_literal: true
+
+module Projects
+  module RemoveRefs
+    extend ActiveSupport::Concern
+    include Gitlab::ExclusiveLeaseHelpers
+
+    LOCK_RETRY = 3
+    LOCK_TTL = 5.minutes
+    LOCK_SLEEP = 0.5.seconds
+
+    def serialized_remove_refs(project_id, &blk)
+      in_lock("projects/#{project_id}/serialized_remove_refs", **lock_params, &blk)
+    end
+
+    def lock_params
+      {
+        ttl: LOCK_TTL,
+        retries: LOCK_RETRY,
+        sleep_sec: LOCK_SLEEP
+      }
+    end
+  end
+end