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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
else
# Check TERM against a whitelist covering a majority of popular
# terminal emulators and virtual console implementations known to
# support color. If no matching entry is found, try to use tput(1) to
# determine whether color is supported.
case ${TERM} in
*color* |\
*direct* |\
*ghostty |\
[Ekx]term* |\
alacritty |\
aterm |\
contour |\
dtterm |\
foot* |\
jfbterm |\
linux |\
mlterm |\
rxvt* |\
screen* |\
tmux* |\
wsvt25* ) gentoo_color=1 ;;
* ) gentoo_color=$(tput colors 2>/dev/null)
esac
fi
# For direxpand to be missing indicates that bash is lacking readline support.
if (( gentoo_color <= 0 )) || ( ! shopt -u direxpand 2>/dev/null ); 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 diff(1), grep(1) and a few coreutils utilities.
# However, do so only where no alias/function by the given name exists.
for _ in diff dir grep ls vdir; do
if [[ $(type -t "$_") == file ]]; then
alias "$_=$_ --color=auto"
fi
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 "$(COLORTERM=1 dircolors -b -- ~/.dir_colors)"
elif [[ -f /etc/DIR_COLORS ]]; then
eval "$(COLORTERM=1 dircolors -b /etc/DIR_COLORS)"
else
eval "$(COLORTERM=1 dircolors -b)"
fi
fi
fi
unset -v gentoo_color
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