Gentoo Bash Colors

gentoo-bash-colors

# /etc/bash.bashrc
#
# NOTE: If on Arch Linux, you can check out the following package
# in the AUR: https://aur.archlinux.org/packages/gentoo-bashrc/
#
# This file is sourced by all *interactive* bash shells on startup,
# including some apparently interactive shells such as scp and rcp
# that can't tolerate any output. So make sure this doesn't display
# anything or bad things will happen !

# Test for an interactive shell. There is no need to set anything
# past this point for scp and rcp, and it's important to refrain from
# outputting anything in those cases.

if [[ $- != *i* ]] ; then
# Shell is non-interactive. Be done now!
return
fi

# Bash won't get SIGWINCH if another process is in the foreground.
# Enable checkwinsize so that bash will check the terminal size when
# it regains control. #65623
# http://cnswww.cns.cwru.edu/~chet/bash/FAQ (E11)
shopt -s checkwinsize

# Enable history appending instead of overwriting. #139609
shopt -s histappend

# Change the window title of X terminals
case ${TERM} in
xterm*|rxvt*|Eterm|aterm|kterm|gnome*|interix)
PROMPT_COMMAND='echo -ne "33]0;${USER}@${HOSTNAME%%.*}:${PWD/$HOME/~}07"'
;;
screen)
PROMPT_COMMAND='echo -ne "33_${USER}@${HOSTNAME%%.*}:${PWD/$HOME/~}33\\"'
;;
esac

use_color=false

# Set colorful PS1 only on colorful terminals.
# dircolors --print-database uses its own built-in database
# instead of using /etc/DIR_COLORS. Try to use the external file
# first to take advantage of user additions. Use internal bash
# globbing instead of external grep binary.
safe_term=${TERM//[^[:alnum:]]/?} # sanitize TERM
match_lhs=""
[[ -f ~/.dir_colors ]] && match_lhs="${match_lhs}$(<~/.dir_colors)"
[[ -f /etc/DIR_COLORS ]] && match_lhs="${match_lhs}$(/dev/null \
&& match_lhs=$(dircolors --print-database)
[[ $'\n'${match_lhs} == *$'\n'"TERM "${safe_term}* ]] && use_color=true

if ${use_color} ; then
# Enable colors for ls, etc. Prefer ~/.dir_colors #64489
if type -P dircolors >/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)
fi
fi

if [[ ${EUID} == 0 ]] ; then
PS1='\[33[01;31m\]\h\[33[01;34m\] \W \$\[33[00m\] '
else
PS1='\[33[01;32m\]\u@\h\[33[01;34m\] \w \$\[33[00m\] '
fi

alias ls='ls --color=auto'
alias grep='grep --colour=auto'
else
if [[ ${EUID} == 0 ]] ; then
# show root@ when we do not have colors
PS1='\u@\h \W \$ '
else
PS1='\u@\h \w \$ '
fi
fi

# Try to keep environment pollution down, EPA loves us.
unset use_color safe_term match_lhs