Automatically runs Rubocop on save

[dcluna]

Does exactly what it says on the tin.

Addresses #10, and probably #21 too.

[bbatsov]

It would be better if there was some function added to the hook that checks the value of the defcustom instead. That way if you toggle the defcustom you won't have to restart rubocop-mode.

[bbatsov]

I think it'd be better to add some option to the existing command to correct silently.

[sadhu89]

This is great! Could I make it work with --safe-autocorrect?

[sadhu89]

I have been using these a couple of days and I love it. Is there a way I can avoid it gets executed when super-save saves the file automatically?

[dcluna]

@sadhu89 I was thinking you could customize this function in super-save, maybe using one of the advices defined there to temporarily set the defcustom defined here to nil. WDYT?

[bbatsov]

I forgot to merge this. Please rebase it and ping me afterwards, so we can wrap it up.

[dcluna]

@bbatsov ping

[bbatsov]

Thanks!

[grauschnabel]

Could you make a statement in the README.md also? I always get
Compilation exited abnormally with code 127
but don't know which settings are wrong.

[dcluna]

@grauschnabel If you run rubocop-autocorrect-current-file interactively, does it work?

I recommend doing bundle install after ensuring rubocop is in the project's Gemfile or setting rubocop-prefer-system-executable to t if that's what you use.