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51 lines
1.3 KiB
Bash
51 lines
1.3 KiB
Bash
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#!/usr/bin/env bash
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# -----------------------------------------------------------------------------
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# bat-extras | Copyright (C) 2019 eth-p | MIT License
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#
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# Repository: https://github.com/eth-p/bat-extras
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# Issues: https://github.com/eth-p/bat-extras/issues
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# -----------------------------------------------------------------------------
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# Option parser hook: color support.
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# This will accept --no-color or --color.
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# It will also try to accept --color=never|always|auto.
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#
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# The variable OPT_COLOR will be set depending on whether or not a TTY is
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# detected and whether or not --color/--no-color is specified.
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hook_color() {
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SHIFTOPT_HOOKS+=("__shiftopt_hook__color")
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__shiftopt_hook__color() {
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case "$OPT" in
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--no-color) OPT_COLOR=false ;;
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--color) {
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case "$OPT_VAL" in
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"") OPT_COLOR=true ;;
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always | true) OPT_COLOR=true ;;
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never | false) OPT_COLOR=false ;;
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auto) return 0 ;;
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*)
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printc "%{RED}%s: '--color' expects value of 'auto', 'always', or 'never'%{CLEAR}\n" "$PROGRAM"
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exit 1
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;;
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esac
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} ;;
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*) return 1 ;;
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esac
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printc_init "$OPT_COLOR"
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return 0
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}
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# Default color support.
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if [[ -z "$OPT_COLOR" ]]; then
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if [[ -t 1 ]]; then
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OPT_COLOR=true
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else
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OPT_COLOR=false
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fi
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printc_init "$OPT_COLOR"
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fi
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}
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