sashimi fish prompt ported to bash

sashimi-bash

PROMPT_COMMAND=__prompt_command

__prompt_command() {
    local EXIT="$?"                # This needs to be first
    PS1=""
    cyan="\e[1;36m"
    yellow="\e[0;33m"
    red="\e[0;31m"
    blue="\e[0;34m"
    green="\e[1;32m"
    normal="\e[0m"
    cwd="\W"
    dirty="$yellow ✗"



    __git_ps1(){
        echo $(git symbolic-ref HEAD 2>/dev/null | sed -e 's|^refs/heads/||')
    }
    git_info() {
        if [[ $(__git_ps1) ]]
        then
            if [[ $(__git_ps1 | grep master) ]]
            then
                git_prompt="git:($red%s$normal)"
            else
                git_prompt="git:($blue%s$normal)"
            fi
            printf $git_prompt $(__git_ps1)
        fi
    }
    
    is_dirty() {
        if [[ $(git status -s --ignore-submodules=dirty 2>/dev/null ) ]]
        then
            echo -e $dirty
        fi
    }



    if [ $EXIT == 0 ]; then
        initial_indicator="$green◆"
        status_indicator="$normal❯$cyan❯$green❯"
    else
        initial_indicator="$red✖ $EXIT"
        status_indicator="$red❯$red❯$red❯"
    fi


    PS1="$initial_indicator $cyan$cwd$normal \$(git_info)\$(is_dirty) $status_indicator$normal "
}