mpan’s bash prompt

buildPrompt-mpan

#/usr/bin/env bash
# Copyright © 2016 mpan; <https://mpan.pl/>; CC0 1.0
remote=1
if [[ -z "$SSH_CONNECTION" && -z "$SSH_TTY" ]]; then
    remote=0
fi

root=0
if [[ -n "$EUID" ]]; then
    if [[ "$EUID" == 0 ]]; then
        root=1
    fi
elif [[ -n "$UID" ]]; then
    if [[ "$UID" == 0 ]]; then
        root=1
    fi
else
    if [[ $(whoami) == 'root' ]]; then
        root=1
    fi
fi

if [[ -n "$TERM" && !$(which tput &>/dev/null) ]]; then
    if (( remote )); then
        tJs8DzemWhJQoAxzABKH8mKqco_preHost="$(tput sgr0)$(tput bold)$(tput setaf 2)"
    else
        tJs8DzemWhJQoAxzABKH8mKqco_preHost="$(tput sgr0)$(tput setaf 6)"
    fi
    if (( root )); then
        tJs8DzemWhJQoAxzABKH8mKqco_preUser="$(tput sgr0)$(tput bold)$(tput setaf 1)"
    else
        tJs8DzemWhJQoAxzABKH8mKqco_preUser="$(tput sgr0)$(tput setaf 3)"
    fi
    tJs8DzemWhJQoAxzABKH8mKqco_postUser="$(tput sgr0)$(tput setaf 0)$(tput bold)@"
    tJs8DzemWhJQoAxzABKH8mKqco_reset="$(tput sgr0)"
    tJs8DzemWhJQoAxzABKH8mKqco_preColorResultP="$(tput setaf 2)"
    tJs8DzemWhJQoAxzABKH8mKqco_preColorResultN="$(tput bold)$(tput setaf 1)"
fi
unset remote
unset root

function tJs8DzemWhJQoAxzABKH8mKqco_buildPrompt {
    lastResult=$?
    if (( lastResult )); then
        resultStyle="$tJs8DzemWhJQoAxzABKH8mKqco_preColorResultN"
    else
        resultStyle="$tJs8DzemWhJQoAxzABKH8mKqco_preColorResultP"
    fi
    pwd="$(basename "$(pwd)")"
    if [[ "$(readlink -f "$(pwd)/..")" != '/' ]]; then
        pwd="$(basename "$(readlink -f "$(pwd)/..")")/$pwd"
    fi
    if [[ "$(readlink -f "$(pwd)/../..")" != '/' ]]; then
        pwd="…/$pwd"
    elif [[ "$pwd" != '/' ]]; then
        pwd="/$pwd"
    fi
    PS1=$( \
          echo -n "$tJs8DzemWhJQoAxzABKH8mKqco_reset\n"; \
          echo -n "$resultStyle| $(printf '% 3d' $lastResult) "; \
          echo -n '| | | | \T | | | | '"$tJs8DzemWhJQoAxzABKH8mKqco_reset "; \
          echo -n "$tJs8DzemWhJQoAxzABKH8mKqco_preUser\u"; \
          echo -n "$tJs8DzemWhJQoAxzABKH8mKqco_postUser"; \
          echo -n "$tJs8DzemWhJQoAxzABKH8mKqco_preHost\H"; \
          echo -n "$tJs8DzemWhJQoAxzABKH8mKqco_reset"; \
          echo -n ":$pwd\n \$ ")
}

PROMPT_COMMAND='tJs8DzemWhJQoAxzABKH8mKqco_buildPrompt'