1 files changed, 14 insertions, 1 deletions
diff --git a/app/serializers/tree_root_entity.rb b/app/serializers/tree_root_entity.rb
index 23b65aa4a4c..69702ae1493 100644
--- a/app/serializers/tree_root_entity.rb
+++ b/app/serializers/tree_root_entity.rb
@@ -1,8 +1,21 @@
 # TODO: Inherit from TreeEntity, when `Tree` implements `id` and `name` like `Gitlab::Git::Tree`.
 class TreeRootEntity < Grape::Entity
+  include RequestAwareEntity
+
   expose :path
-  
+
   expose :trees, using: TreeEntity
   expose :blobs, using: BlobEntity
   expose :submodules, using: SubmoduleEntity
+
+  expose :parent_tree_url do |tree|
+    path = tree.path.sub(%r{\A/}, '')
+    next unless path.present?
+
+    path_segments = path.split('/')
+    path_segments.pop
+    parent_tree_path = path_segments.join('/')
+
+    project_tree_path(request.project, File.join(request.ref, parent_tree_path))
+  end
 end