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home-manager/modules/lib-bash/color-echo.sh

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# The check for terminal output and color support is heavily inspired
# by https://unix.stackexchange.com/a/10065.
#
# Allow opt out by respecting the `NO_COLOR` environment variable.
function setupColors() {
normalColor=""
errorColor=""
warnColor=""
noteColor=""
# Enable colors for terminals, and allow opting out.
if [[ ! -v NO_COLOR && -t 1 ]]; then
# See if it supports colors.
local ncolors
ncolors=$(tput colors)
if [[ -n "$ncolors" && "$ncolors" -ge 8 ]]; then
normalColor="$(tput sgr0)"
errorColor="$(tput bold)$(tput setaf 1)"
warnColor="$(tput setaf 3)"
noteColor="$(tput bold)$(tput setaf 6)"
fi
fi
}
setupColors
function errorEcho() {
echo "${errorColor}$*${normalColor}"
}
function warnEcho() {
echo "${warnColor}$*${normalColor}"
}
function noteEcho() {
echo "${noteColor}$*${normalColor}"
}