A custom bash-it theme based on the emperor theme that includes docker information

custom.theme.bash

#!/usr/bin/env bash
SCM_THEME_PROMPT_DIRTY=" ${red}✗"
SCM_THEME_PROMPT_CLEAN=" ${bold_green}✓"
SCM_THEME_PROMPT_PREFIX=" |"
SCM_THEME_PROMPT_SUFFIX="${green}|"

GIT_THEME_PROMPT_DIRTY=" ${red}✗"
GIT_THEME_PROMPT_CLEAN=" ${bold_green}✓"
GIT_THEME_PROMPT_PREFIX=" ${green}|"
GIT_THEME_PROMPT_SUFFIX="${green}|"

RVM_THEME_PROMPT_PREFIX="|"
RVM_THEME_PROMPT_SUFFIX="|"

function get_hour_color {
    hour_color=$red
    min=$(date +%M)
    if [ "$min" -lt "15" ]; then
        hour_color=$green
    elif [ "$min" -lt "30" ]; then
        hour_color=$white
    elif [ "$min" -lt "45" ]; then
        hour_color=$yellow
    else
        hour_color=$red
    fi
    echo "$hour_color"
}

function docker_machine_info {
    if [ $DOCKER_MACHINE_NAME ]; then 
        case "$DOCKER_MACHINE_NAME" in
            'default') color=$cyan ;;
            *) color=$red ;;
        esac

        if [[ $DOCKER_HOST == *":3376" ]]; then
            echo " ${color}🐳 |$DOCKER_MACHINE_NAME (swarm)|"
        else
            echo " ${color}🐳 |$DOCKER_MACHINE_NAME|"
        fi
    fi
}

function prompt_command() {
    PS1="\n$(get_hour_color)$(date +%H) ${purple}\h ${reset_color} ${bold_black}\w\n${bold_cyan}$(scm_char)${green}$(scm_prompt_info)$(docker_machine_info) ${green}→${reset_color} "
}

PROMPT_COMMAND=prompt_command;