#!/usr/bin/env bash
# Print a message in each of the 8 ANSI terminal colors

rainbow() {
    local message="$1"
    local reset='\e[0m'
    for ((color=31; color<=37; color++))
    do
        color_code="\\e[0;${color}m"
        if [ -t 1 ]; then
            printf "${color} - ${color_code}${message}${reset}\n"
        else
            printf "${color} - ${message}\n"
        fi
    done
}