Add LFS blob ID to GraphQL blob type

1 files changed, 25 insertions, 0 deletions

diff --git a/lib/gitlab/graphql/loaders/batch_commit_loader.rb b/lib/gitlab/graphql/loaders/batch_commit_loader.rb
new file mode 100644
index 00000000000..f410c3195f8
--- /dev/null
+++ b/lib/gitlab/graphql/loaders/batch_commit_loader.rb
@@ -0,0 +1,25 @@
+# frozen_string_literal: true
+
+module Gitlab
+  module Graphql
+    module Loaders
+      class BatchCommitLoader
+        def initialize(repository, blob_id)
+          @repository, @blob_id = repository, blob_id
+        end
+
+        def find
+          BatchLoader.for(blob_id).batch(key: repository) do |blob_ids, loader, batch_args|
+            Gitlab::Git::Blob.batch_lfs_pointers(batch_args[:key], blob_ids).each do |loaded_blob|
+              loader.call(loaded_blob.id, loaded_blob.lfs_oid)
+            end
+          end
+        end
+
+        private
+
+        attr_reader :repository, :blob_id
+      end
+    end
+  end
+end