1 files changed, 4 insertions, 0 deletions
diff --git a/lib/gitlab/diff/file.rb b/lib/gitlab/diff/file.rb
index b0c50edba59..7e01f7b61fb 100644
--- a/lib/gitlab/diff/file.rb
+++ b/lib/gitlab/diff/file.rb
@@ -68,6 +68,10 @@ module Gitlab
         @lines ||= Gitlab::Diff::Parser.new.parse(raw_diff.each_line).to_a
       end
 
+      def collapsed_by_default?
+        diff.diff.bytesize > 10240 # 10 KB
+      end
+
       def highlighted_diff_lines
         @highlighted_diff_lines ||= Gitlab::Diff::Highlight.new(self, repository: self.repository).highlight
       end