Enable ANSI colors for Windows 10 and newer

[hacdias]

Hey!

I've been reading a bit about Windows CMD and Virtual Processing. This code bellow is enough to make ANSI work on Windows 10 and newer:

handle := syscall.Handle(os.Stdout.Fd())
kernel32DLL := syscall.NewLazyDLL("kernel32.dll")
setConsoleModeProc := kernel32DLL.NewProc("SetConsoleMode")
setConsoleModeProc.Call(uintptr(handle), 0x0001|0x0002|0x0004)

More information about it here: https://msdn.microsoft.com/en-us/library/windows/desktop/ms686033(v=vs.85).aspx

It would be interesting to add!

[ezk84]

Indeed it would be nice to be able to see coloured output rather than the following in Windows 10:

?[34mINFO?[0m[0000] A walrus appears                              ?[34manimal?[0m=walrus

[hacdias]

The addition of that code would solve that. What do you think @sirupsen?

[ezk84]

It does solve the issue, I've tested it myself. Tricky things will be making sure this runs only in Windows.

Maybe creating a PR would move this faster (thought looking at the PR list, maybe no so much :D)

[hacdias]

Done @ezk84 😄 Let's see what happens.

[ezk84]

@hacdias I've added a PR for your PR, where I make a few alterations to make it more likely to be accepted into @sirupsen's repo.

[hacdias]

Done! Thank you 😄

[dmathieu]

It looks like this issue has been resolved. Closing.
Please let me know if this isn't the case.

[omarhachach]

Continues to be an issue for me, this is what my console looks like:

?[36mINFO?[0m[0000] Loaded module: Help
?[37mDEBU?[0m[0002] hi
?[37mDEBU?[0m[0003] Error sending message.                        ?[37merror?[0m="HTTP 400 Bad Request, {\"embed\": [\"url\"]}"

Using Ubuntu on Windows (in cmd) it seems to work, just not in a standard cmd window.

[hacdias]

Make sure this isn't checked:

[omarhachach]

It isn't, still doesn't work.

[hacdias]

I just checked the code and they removed what I have added. Check this: https://github.com/sirupsen/logrus#formatters

[jrandalldemllo]

Indeed, commit e66f229 seems to be where it was removed.
Following README's instruction:

For Windows, see github.com/mattn/go-colorable.

go get github.com/mattn/go-colorable

Then setting logrus.SetOutput(colorable.NewColorableStdout()) fixed this for me, in case others were wondering.

[qiuker521]

yes, this issue +1,
seems #471 does not work