1 files changed, 10 insertions, 0 deletions
diff --git a/lib/gitlab/diff/file.rb b/lib/gitlab/diff/file.rb
index 8ba44dff06f..a85c5386d98 100644
--- a/lib/gitlab/diff/file.rb
+++ b/lib/gitlab/diff/file.rb
@@ -122,6 +122,16 @@ module Gitlab
         old_blob_lazy&.itself
       end
 
+      def new_blob_lines_between(from_line, to_line)
+        return [] unless new_blob
+
+        from_index = from_line - 1
+        to_index = to_line - 1
+
+        new_blob.load_all_data!
+        new_blob.data.lines[from_index..to_index]
+      end
+
       def content_sha
         new_content_sha || old_content_sha
       end