Use multiple exit status codes

[jakecraige]

Currently SwiftLint exits with a 1 error code when it dies because something is invalid(path, config, etc) OR if there are serious violations. What do you think about exiting with a different code on failing because of violations vs. invalid params?

This would be useful when running SwiftLint within another script and making decisions based on the response. Currently I have no way to tell if it's failing because of violations or invalid data.

[kylef]

This will also be helpful for any vim syntastic plugin since you'd want to show swiftlint errors different to linting responses.

[jpsim]

Agreed! Perhaps errors should exit with code 2 and warnings (in strict mode) could return 3?

[picaso]

Hi! Any timeframe on this enhancement? Thanks.

[marcelofabri]

Fixed in #584