Increased automerge timeout. Works for 300 commits MR on repo with 200MB size

lib/gitlab_merge.rb

@@ -28,6 +28,7 @@ class GitlabMerge
   end
 
   def pull
+    Grit::Git.with_timeout(30.seconds) do 
       File.open(File.join(Rails.root, "tmp", "merge_repo", "#{project.path}.lock"), "w+") do |f|
         f.flock(File::LOCK_EX)
         
@@ -42,7 +43,10 @@ class GitlabMerge
           output = merge_repo.git.pull({}, "--no-ff", "origin", merge_request.source_branch)
           yield(merge_repo, output)
         end
-
       end
     end
+
+  rescue Grit::Git::GitTimeout
+    return false
+  end
 end