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# /etc/bash/bashrc.d/10-gentoo-color.bash
if [[ ${NO_COLOR} ]]; then
# Respect the user's wish not to use color. See https://no-color.org/.
gentoo_color=0
elif [[ ${COLORTERM@a} == *x* && ${COLORTERM} == @(24bit|truecolor) ]]; then
# The COLORTERM environment variable can reasonably be trusted here.
# See https://github.com/termstandard/colors for further information.
gentoo_color=1
elif unset -v COLORTERM; ! gentoo_color=$(tput colors 2>/dev/null); then
# Either ncurses is not installed or no terminfo database could be
# found. Fall back to a whitelist which covers the majority of terminal
# emulators and virtual console implementations known to support color
# and which remain (somewhat) popular. This will rarely happen, so the
# list need not be exhaustive.
case ${TERM} in
*color* |\
*direct* |\
[Ekx]term* |\
alacritty |\
aterm |\
dtterm |\
foot* |\
jfbterm |\
linux |\
mlterm |\
rxvt* |\
screen* |\
tmux* |\
wsvt25* ) gentoo_color=1
esac
elif (( gentoo_color == 16777216 )); then
# Truecolor support is available. Advertise it.
export COLORTERM=truecolor
fi
if (( gentoo_color <= 0 )); then
# Define a prompt without color.
PS1='\u@\h \w \$ '
elif (( EUID == 0 )); then
# If root, omit the username and print the hostname in red.
PS1='\[\e[01;31m\]\h\[\e[01;34m\] \w \$\[\e[00m\] '
else
# Otherwise, print the username and hostname in green.
PS1='\[\e[01;32m\]\u@\h\[\e[01;34m\] \w \$\[\e[00m\] '
fi
if (( gentoo_color > 0 )); then
# Colorize the output of grep and several coreutils utilities.
for _ in diff dir egrep fgrep grep ls vdir; do
alias "$_=$_ --color=auto"
done
# Enable colors for ls(1) and some other utilities that respect the
# LS_COLORS variable. Prefer ~/.dir_colors, per bug #64489.
if hash dircolors 2>/dev/null; then
if [[ -f ~/.dir_colors ]]; then
eval "$(dircolors -b -- ~/.dir_colors)"
elif [[ -f /etc/DIR_COLORS ]]; then
eval "$(dircolors -b /etc/DIR_COLORS)"
else
eval "$(dircolors -b)"
fi
fi
fi
unset -v gentoo_color
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