Add --color/-c flag to force ANSI output when piping

[martinpovolny]

I am running glow from ranger -- https://github.com/ranger/ranger

I am suggesting to add a flag: --color/-c to force ANSI output when piping

For that I needed to force color output even piping the output.

Above is a screenshot of the resulting behavior.

Below is the configuration fragment for ranger

Here's a branch for reference: https://github.com/martinpovolny/glow/tree/feat/color-flag

Does that make sense for a wider publicum? Shall I make a PR or do you suggest to refine the feature somehow?

Thanks and regards.

[lrstanley]

I am not familiar with ranger, that said, this seems to work fine when testing with ranger:

CLICOLOR_FORCE=1 glow --style dark "${FILE_PATH}"

For more information on how glow determines this behind the scenes, and what other standard env vars are respected: https://github.com/charmbracelet/colorprofile/blob/357d532ad87532edd6a89d578b37023c43970f82/env.go#L56-L69

[martinpovolny]

Thx, I missed that.