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github.com/efekarakus/termcolor

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github.com/efekarakus/termcolor

Package termcolor detects what level of color support your terminal has.


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Termcolor GoDoc Actions Status

Detects what level of color support your terminal has. This package is heavily inspired by chalk's support-color module.

termcolor

Install

go get github.com/efekarakus/termcolor

Examples

Colorize output by finding out which level of color your terminal support:

func main() {
	switch l := termcolor.SupportLevel(os.Stderr); l {
	case termcolor.Level16M:
		// wrap text with 24 bit color https://en.wikipedia.org/wiki/ANSI_escape_code#24-bit
		fmt.Fprint(os.Stderr, "\x1b[38;2;25;255;203mSuccess!\n\x1b[0m")
	case termcolor.Level256:
		// wrap text with 8 bit color https://en.wikipedia.org/wiki/ANSI_escape_code#8-bit
		fmt.Fprint(os.Stderr, "\x1b[38;5;118mSuccess!\n\x1b[0m")
	case termcolor.LevelBasic:
		// wrap text with 3/4 bit color https://en.wikipedia.org/wiki/ANSI_escape_code#3/4_bit
		fmt.Fprint(os.Stderr, "\x1b[92mSuccess!\n\x1b[0m")
	default:
		// no color, return text as is.
		fmt.Fprint(os.Stderr, "Success!\n")
	}
}

Alternatively, you can use:

if termcolor.Supports16M(os.Stderr) {}
if termcolor.Supports256(os.Stderr) {}
if termcolor.SupportsBasic(os.Stderr) {}
if termcolor.SupportsNone(os.Stderr) {}

Priorities

The same environment variable and flag priorities as chalk's supports-color module is applied.

It obeys the --color and --no-color CLI flags.

For situations where using --color is not possible, use the environment variable FORCE_COLOR=1 (level 1), FORCE_COLOR=2 (level 2), or FORCE_COLOR=3 (level 3) to forcefully enable color, or FORCE_COLOR=0 to forcefully disable. The use of FORCE_COLOR overrides all other color support checks.

Explicit 256/Truecolor mode can be enabled using the --color=256 and --color=16m flags, respectively.

Credits

License

The MIT License (MIT) - see LICENSE for more details.

FAQs

Package last updated on 24 Nov 2019

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