Ansi colours on Windows 10, sort of not working

Question

Console with colours is fairly new and exciting for Windows :-)

I wrote some programs that printed using the ansi colour escapes and all was good ...

Answer 1

You have to enable virtual terminal processing on Windows since that update.

I usually add a file init_windows.go which sets this in windows but is also compatible with other OS:

// +build windows

package main

import (
    "os"

    "golang.org/x/sys/windows"
)

func init() {
    stdout := windows.Handle(os.Stdout.Fd())
    var originalMode uint32

    windows.GetConsoleMode(stdout, &originalMode)
    windows.SetConsoleMode(stdout, originalMode|windows.ENABLE_VIRTUAL_TERMINAL_PROCESSING)
}

as copied from: https://github.com/sirupsen/logrus/issues/172#issuecomment-353724264