Wrap Rugged-exceptions in Gitlab::Git::Repository#write_ref

app/models/repository.rb

@@ -261,14 +261,16 @@ class Repository
     # This will still fail if the file is corrupted (e.g. 0 bytes)
     begin
       raw_repository.write_ref(keep_around_ref_name(sha), sha, shell: false)
-    rescue Rugged::ReferenceError => ex
+    rescue Gitlab::Git::CommandError => ex
+      if ex.message.start_with?("ReferenceError: ")
         Rails.logger.error "Unable to create #{REF_KEEP_AROUND} reference for repository #{path}: #{ex}"
-    rescue Rugged::OSError => ex
+      elsif ex.message.start_with?("OSError: ")
         raise unless ex.message =~ /Failed to create locked file/ && ex.message =~ /File exists/
 
         Rails.logger.error "Unable to create #{REF_KEEP_AROUND} reference for repository #{path}: #{ex}"
       end
     end
+  end
 
   def kept_around?(sha)
     ref_exists?(keep_around_ref_name(sha))

lib/gitlab/git/repository.rb

@@ -1126,19 +1126,6 @@ module Gitlab
         end
       end
 
-      def shell_write_ref(ref_path, ref, old_ref)
-        raise ArgumentError, "invalid ref_path #{ref_path.inspect}" if ref_path.include?(' ')
-        raise ArgumentError, "invalid ref #{ref.inspect}" if ref.include?("\x00")
-        raise ArgumentError, "invalid old_ref #{old_ref.inspect}" if !old_ref.nil? && old_ref.include?("\x00")
-
-        input = "update #{ref_path}\x00#{ref}\x00#{old_ref}\x00"
-        run_git!(%w[update-ref --stdin -z]) { |stdin| stdin.write(input) }
-      end
-
-      def rugged_write_ref(ref_path, ref)
-        rugged.references.create(ref_path, ref, force: true)
-      end
-
       def fetch_ref(source_repository, source_ref:, target_ref:)
         Gitlab::Git.check_namespace!(source_repository)
         source_repository = RemoteRepository.new(source_repository) unless source_repository.is_a?(RemoteRepository)
@@ -1396,6 +1383,23 @@ module Gitlab
 
       private
 
+      def shell_write_ref(ref_path, ref, old_ref)
+        raise ArgumentError, "invalid ref_path #{ref_path.inspect}" if ref_path.include?(' ')
+        raise ArgumentError, "invalid ref #{ref.inspect}" if ref.include?("\x00")
+        raise ArgumentError, "invalid old_ref #{old_ref.inspect}" if !old_ref.nil? && old_ref.include?("\x00")
+
+        input = "update #{ref_path}\x00#{ref}\x00#{old_ref}\x00"
+        run_git!(%w[update-ref --stdin -z]) { |stdin| stdin.write(input) }
+      end
+
+      def rugged_write_ref(ref_path, ref)
+        rugged.references.create(ref_path, ref, force: true)
+      rescue Rugged::ReferenceError => ex
+        raise CommandError, "ReferenceError: #{ex}"
+      rescue Rugged::OSError => ex
+        raise CommandError, "OSError: #{ex}"
+      end
+
       def fresh_worktree?(path)
         File.exist?(path) && !clean_stuck_worktree(path)
       end