MIAOU-BASH is a collection of scripts and configurations designed to enhance your terminal experience. As the name suggests, it is built on Bash and is designed to work on most modern GNU/Linux systems.
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#!/bin/bash
# shellcheck disable=SC2139
# TODO: needs some refactoring
function __miaou_prompt_command {
local EXIT="$?" # This needs to be first
local R='\[\e[0m\]'
local Red='\[\e[31m\]'
local Gre='\[\e[32m\]'
local Yel='\[\e[93m\]'
local Cya='\[\e[36m\]'
local Mag='\[\e[95m\]'
local Gra='\[\e[90m\]'
local DIVERGENT_GIT_SYMBOL="${Yel}${R}"
local SYNCHRONIZED_GIT_SYMBOL="${Gre}${R}"
local PUSHED_NEEDED_SYMBOL='⥱'
local TAG_NEEDED_SYMBOL='⤽'
local previous_IFS="$IFS"
# set xterm title
echo -ne "\033]0;${USER}@${HOSTNAME}: ${PWD}\007"
PS1=''
IFS=' '
if [[ "$UID" -eq 0 ]]; then
PS1+="$Yel\u$R"
PROMPT='$'
else
PS1+="$Gre\u$R"
PROMPT='#'
fi
PS1+="${Gra}@${R}${HOSTNAME}"
local pwd='~'
[ "$PWD" != "$HOME" ] && pwd=${PWD/#$HOME\//\~\/}
PS1+=" ${Cya}${pwd}${R}"
if hash git 2>&-; then
# git command exists
if git rev-parse --git-dir >/dev/null 2>&1; then
# current dir is version controlled
local branch tag_release dirty
branch=$(git branch 2>/dev/null | grep -e ^* | cut -d ' ' -f2)
PS1+=" ${R}[${Mag}${branch}${R}|"
tag_release=$(git describe --tags 2>/dev/null | cut -d'-' -f1)
dirty=$(git status -s | wc -l)
if [[ $dirty -ne 0 ]]; then
PS1+="${Yel}${DIVERGENT_GIT_SYMBOL}${R}|${tag_release}${Yel}$dirty"
else
local ahead
ahead=$(git rev-list --branches --not --remotes | wc -l)
if [[ $ahead -ne 0 ]]; then
PS1+="${DIVERGENT_GIT_SYMBOL}|${tag_release}${Yel}${PUSHED_NEEDED_SYMBOL}${ahead}"
else
if [[ -z $tag_release ]]; then
PS1+="${SYNCHRONIZED_GIT_SYMBOL}"
else
local commit_ahead
commit_ahead=$(git log "$tag_release"..HEAD --oneline | wc -l)
if [[ $commit_ahead -gt 0 ]]; then
PS1+="${DIVERGENT_GIT_SYMBOL}|${tag_release}${Cya}${TAG_NEEDED_SYMBOL}${commit_ahead}"
else
PS1+="${SYNCHRONIZED_GIT_SYMBOL}|${Cya}${tag_release}"
fi
fi
fi
fi
PS1+="${R}]"
fi
fi
if [ $EXIT != 0 ]; then
PS1+="$Mag" # Add red if exit code non 0
else
PS1+="$Gra"
fi
PS1+=" $PROMPT ${R}"
IFS="$previous_IFS"
}
###------
### MAIN
###------
# If not running interactively, don't do anything
[[ $- != *i* ]] && return
if [[ ! -v MIAOU_BASH_DIR ]]; then
source /etc/profile.d/zz-miaou-bash.sh
else
PROMPT_COMMAND=__miaou_prompt_command
fi
HOSTNAME=$(hostname -f)
HISTCONTROL=ignoreboth
HISTSIZE=10000
HISTFILESIZE=20000
BLOCK_SIZE=si
export BLOCK_SIZE
export BLOCK_SIZE=si
# append to the history file, don't overwrite it
shopt -s histappend
# check the window size after each command and, if necessary,
# update the values of LINES and COLUMNS.
shopt -s checkwinsize
# set a fancy prompt (non-color, unless we know we "want" color)
# One-liner: Do we have colors?
if [[ -t 1 ]] && [[ -v COLORTERM && "$COLORTERM" == "truecolor" || "$TERM" == *"256color"* || "$TERM" == 'xterm-ghostty' ]]; then
export LS_COLORS="rs=0:di=01;34:ln=01;36:mh=00:pi=40;33:so=01;35:do=01;35:bd=40;33;01:cd=40;33;01:or=40;31;01:mi=00:su=37;41:sg=30;43:ca=30;41:tw=30;42:ow=34;42:st=37;44:ex=01;32:*.tar=01;31:*.tgz=01;31:*.arc=01;31:*.arj=01;31:*.taz=01;31:*.lha=01;31:*.lz4=01;31:*.lzh=01;31:*.lzma=01;31:*.tlz=01;31:*.txz=01;31:*.tzo=01;31:*.t7z=01;31:*.zip=01;31:*.z=01;31:*.Z=01;31:*.dz=01;31:*.gz=01;31:*.sql.gz=01;35:*.mariadb.gz=01;35:*.postgres.gz=01;35:*.lrz=01;31:*.lz=01;31:*.lzo=01;31:*.xz=01;31:*.zst=01;31:*.tzst=01;31:*.bz2=01;31:*.bz=01;31:*.tbz=01;31:*.tbz2=01;31:*.tz=01;31:*.deb=01;31:*.rpm=01;31:*.jar=01;31:*.war=01;31:*.ear=01;31:*.sar=01;31:*.rar=01;31:*.alz=01;31:*.ace=01;31:*.zoo=01;31:*.cpio=01;31:*.7z=01;31:*.rz=01;31:*.cab=01;31:*.jpg=01;35:*.jpeg=01;35:*.mjpg=01;35:*.mjpeg=01;35:*.gif=01;35:*.bmp=01;35:*.pbm=01;35:*.pgm=01;35:*.ppm=01;35:*.tga=01;35:*.xbm=01;35:*.xpm=01;35:*.tif=01;35:*.tiff=01;35:*.png=01;35:*.svg=01;35:*.svgz=01;35:*.mng=01;35:*.pcx=01;35:*.mov=01;35:*.mpg=01;35:*.mpeg=01;35:*.m2v=01;35:*.mkv=01;35:*.webm=01;35:*.ogm=01;35:*.mp4=01;35:*.m4v=01;35:*.mp4v=01;35:*.vob=01;35:*.qt=01;35:*.nuv=01;35:*.wmv=01;35:*.asf=01;35:*.rm=01;35:*.rmvb=01;35:*.flc=01;35:*.avi=01;35:*.fli=01;35:*.flv=01;35:*.gl=01;35:*.dl=01;35:*.xcf=01;35:*.xwd=01;35:*.yuv=01;35:*.cgm=01;35:*.emf=01;35:*.ogv=01;35:*.ogx=01;35:*.aac=00;36:*.au=00;36:*.flac=00;36:*.m4a=00;36:*.mid=00;36:*.midi=00;36:*.mka=00;36:*.mp3=00;36:*.mpc=00;36:*.ogg=00;36:*.ra=00;36:*.wav=00;36:*.oga=00;36:*.opus=00;36:*.spx=00;36:*.xspf=00;36:"
fi
if [[ -t 0 ]]; then
stty -ixon # prevent CTRL+S to freeze in vim, CTRL+Q to unfreeze!
stty kill undef # release CTRL+U for the Readline library => undo
fi
export LESS="r"
# make less more friendly for non text input files, see lesspipe(1)
if [[ -x /usr/bin/lesspipe ]]; then eval "$(SHELL=/bin/sh lesspipe)"; fi
# ALIASES
COLOR_OPTIONS=('--color=auto')
alias ls="ls ${COLOR_OPTIONS[*]}"
alias ll="ls ${COLOR_OPTIONS[*]} -l"
alias la="ls ${COLOR_OPTIONS[*]} -la"
alias ltr="ls ${COLOR_OPTIONS[*]} -ltr"
alias grep="grep ${COLOR_OPTIONS[*]}"
alias fgrep="fgrep ${COLOR_OPTIONS[*]}"
alias egrep="egrep ${COLOR_OPTIONS[*]}"
unset COLOR_OPTIONS
alias l=ls
alias sudo='sudo ' # the smart sudo alias trick!
alias cd..='cd ..'
alias ..=cd..
alias transfer_cp='rsync -a --info=progress2 --no-inc-recursive'
alias ssu='ss -tlnp4'
# OVERRIDDEN ALIASES
# shellcheck source=/dev/null
[[ -f "/etc/bash.aliases" ]] && source "/etc/bash.aliases"
# shellcheck source=/dev/null
[[ -f "$HOME/.bash_aliases" ]] && source "$HOME/.bash_aliases"
# the miaou-bash helper function
function miaou-bash {
"$MIAOU_BASH_DIR"/bin/miaou-bash "$@"
local code=$?
if [[ "$code" == 0 ]]; then
if [[ "${1:-}" =~ --self-upgrade|--uninstall ]]; then
echo 'reloading session now!'
exec bash -l
fi
fi
return $code
}
# BASH COMPLETIONS
if ! shopt -oq posix; then
if [ -f /usr/share/bash-completion/bash_completion ]; then
. /usr/share/bash-completion/bash_completion
elif [ -f /etc/bash_completion ]; then
. /etc/bash_completion
fi
fi
## Add path for TOOLBOX if any
[[ -d "/TOOLBOX" ]] && PATH=$PATH:/TOOLBOX || true
# Add path to any tools folder in /opt/miaou-*
for i in {/opt,$HOME}/miaou-*/tools; do
[[ -d "$i" ]] && PATH=$PATH:$i
done || true