if the branch/tag count is over a certain limit, don't execute

the long running git query

app/controllers/projects/commit_controller.rb

@@ -56,8 +56,8 @@ class Projects::CommitController < Projects::ApplicationController
   end
 
   def branches
-    @branches = @project.repository.branch_names_contains(commit.id)
-    @tags = @project.repository.tag_names_contains(commit.id)
+    @branches = @project.repository.branch_names_contains(commit.id, 1000)
+    @tags = @project.repository.tag_names_contains(commit.id, 1000)
     render layout: false
   end
 

app/models/repository.rb

@@ -715,12 +715,12 @@ class Repository
     end
   end
 
-  def branch_names_contains(sha)
-    refs_contains_sha('branch', sha)
+  def branch_names_contains(sha, limit = nil)
+    limit && branch_count > limit ? [] : refs_contains_sha('branch', sha)
   end
 
-  def tag_names_contains(sha)
-    refs_contains_sha('tag', sha)
+  def tag_names_contains(sha, limit = nil)
+    limit && tag_count > limit ? [] : refs_contains_sha('tag', sha)
   end
 
   def local_branches