Prevent 500 on project home page if project has extremely huge number of commits

app/models/repository.rb

@@ -105,7 +105,11 @@ class Repository
 
   def commit_count
     Rails.cache.fetch(cache_key(:commit_count)) do
+      begin
         raw_repository.raw.commit_count
+      rescue
+        0
+      end
     end
   end