Takes a very long time if run with bundle exec

[cschramm]

Running bundle exec rubocop is a magnitude slower than running rubocop for me.

I'm not sure where this might come from, but I do not experience it with other commands like cane, rails_best_practices or brakeman.

cane 0,34s user 0,01s system 93% cpu 0,378 total
bundle exec cane 1,25s user 0,04s system 99% cpu 1,295 total
rubocop 2,78s user 0,87s system 94% cpu 3,868 total
bundle exec rubocop 95,85s user 3,80s system 99% cpu 1:40,10 total

Is it just me or can you confirm this?

[bbatsov]

Yep, I can confirm this. My preliminary analysis shows that the syntax check is problematic - it starts the ruby interpreter with -wc which is pretty fast without bundler, but terribly slow with it.

[bbatsov]

Ok, it took me a while, but I've managed to fix the problem. I guess I'll release a new RuboCop over the weekend.

[cschramm]

Great! 😀