dot-files/bash/prompt

#!/usr/bin/env bash

# display hostname
PS1="\[$green\]"'\u'"\[$yellow\] "
PS1="$PS1\[$(_hostname-color)\]"'$(_hostname-show)'""
# display separator
PS1="$PS1\[$yellow\] "
# display current path
PS1="$PS1\[$green\]\w "
# display git branch
PS1="$PS1\[$bblack\]"'$(parse_git_branch)'
# display git status
PS1="$PS1\[$yellow\]"'$(parse_git_status) '
# display date
PS1="$PS1\[$purple\]\D{%F %I:%M%P} "
# display date
PS1="$PS1\[$color_off\]\nλ "

function parse_git_status {
    if [[ $(git status 2> /dev/null | wc -l) -eq 0 ]]; then
        return
    fi

    if [[ $(git status 2> /dev/null | grep -E "working tree|directory clean" | wc -l) -eq 0 ]]; then
        echo ' ∓'
    fi
}

function _hostname-color {
    case "$(whoami)" in
        william)   echo $blue;;
        buddy)     echo $blue;;
        root)      echo $bred;;
        *)         echo $purple;;
    esac
}

function _hostname-show {
    hostname -s | tr '[A-Z]' '[a-z]'
}

function parse_git_branch {
    git branch --no-color 2> /dev/null | sed -e '/^[^*]/d' -e 's/* \(.*\)/\1/'
}