fix Windows color

[mattn]

[shenwei356]

Thank you so much! Finally solve it. I can fix other tools now! 😄

[shenwei356]

It's not perfect yet. [ERRO] should be red too :(

[shenwei356]

@mattn Oh, no!

https://github.com/op/go-logging/blob/master/format.go#L186

Colors on Windows is unfortunately not supported right now and is currently a no-op.

But I remembered it supports several months ago.

[mattn]

The author of go-logging maybe not know go-colorable.

[shenwei356]

Yes no forks of go-logging tried to fix it.

[shenwei356]

Can you help to improve go-logging with go-colorable. I tried and failed.

[mattn]

put same change in above into here https://github.com/op/go-logging/blob/970db520ece77730c7e4724c61121037378659d9/logger.go#L132

[shenwei356]

More code to be added: https://github.com/op/go-logging/blob/970db520ece77730c7e4724c61121037378659d9/log_windows.go#L104

I tried but can't figure it out.

[mattn]

1. remove log_windows.go
2. put build-constraints for windows into log_nix.go

[shenwei356]

Thanks you @mattn , it works !!!!

I'll create a pull request to go-logging.