Bash command prompt PS1

.bashrc

#... portion of .bashrc

export GIT_PS1_SHOWDIRTYSTATE=true      # staged '+', unstaged '*'
export GIT_PS1_SHOWUNTRACKEDFILES=true  # '%' untracked files
export GIT_PS1_SHOWUPSTREAM="auto"      # '<' behind, '>' ahead, '<>' diverged, '=' no difference
export GIT_PS1_SHOWSTASHSTATE=true      # '$' something is stashed

function __prompt_command() {
    local ERRORCODE="$?"

    # colour codes
    local c_grey="\[\e[90m\]"
    local c_red="\[\e[1;31m\]"
    local c_green="\[\e[32m\]"
    local c_yellow="\[\e[33;1m\]"
    local c_clear="\[\e[0m\]"

    PS1="${debian_chroot:+($debian_chroot)}"

    # Errorcode (conditional)
    if [ ${ERRORCODE} != 0 ]; then
        PS1+="${c_grey}    $(echo -e '\u2570\u2500\u2770')${c_red}${ERRORCODE}${c_grey}$(echo -e '\u2771')${c_clear}\n"
    fi

    # Main line
    local pre_line="$(echo -e '\u256d\u2500')"
    if [[ "$(dirs -p | wc -l)" != "1" ]] ; then
        local pre_line="$(echo -e '\u2934') "
    fi
    PS1+="${c_grey}${pre_line}${c_clear}"
    if [[ ! -z "${VIRTUAL_ENV}" ]]; then
        PS1+="${c_grey}$(echo -e '\u2770')${c_green}$(basename $VIRTUAL_ENV)${c_grey}$(echo -e '\u2771')${c_clear}"
    fi
    PS1+=" ${c_yellow}\w${c_clear}"
    PS1+="\$(__git_ps1)"

    # Command Line
    PS1+="\n${c_grey}$(echo -e '\u2570\u2500\u2bc8') ${c_clear}"
}

export PROMPT_COMMAND=__prompt_command

sample.png