.bash_prompt

#!/bin/bash

# Shell prompt based on the Solarized Dark theme.
# Screenshot: http://i.imgur.com/EkEtphC.png
# Heavily inspired by @necolas’s prompt: https://github.com/necolas/dotfiles
# iTerm → Profiles → Text → use 13pt Monaco with 1.1 vertical spacing.

if [[ $COLORTERM = gnome-* && $TERM = xterm ]] && infocmp gnome-256color >/dev/null 2>&1; then
	export TERM='gnome-256color';
elif infocmp xterm-256color >/dev/null 2>&1; then
	export TERM='xterm-256color';
fi;

setopt interactivecomments
prompt_git() {
	# local s='';
	# local branchName='';

	# Check if the current directory is in a Git repository.
	if [[ $(git rev-parse --is-inside-work-tree &>/dev/null; echo "${?}") == '0' ]]; then
		# Get the short symbolic ref.
		# If HEAD isn’t a symbolic ref, get the short SHA for the latest commit
		# Otherwise, just give up.
		branchName="$(git symbolic-ref --quiet --short HEAD 2> /dev/null || \
			git rev-parse --short HEAD 2> /dev/null || \
			echo '(unknown)')";

		[ -n "${s}" ] && s=" [${s}]";

		echo -e "${1}${branchName}${2}${s}";
	else
		return;
	fi;
}

if tput setaf 1 &> /dev/null; then
	tput sgr0; # reset colors
	bold=$(tput bold);
	reset=$(tput sgr0);
	# Solarized colors, taken from http://git.io/solarized-colors.
	black=$(tput setaf 0);
	blue=$(tput setaf 33);
	cyan=$(tput setaf 37);
	green=$(tput setaf 64);
	orange=$(tput setaf 166);
	purple=$(tput setaf 125);
	red=$(tput setaf 124);
	violet=$(tput setaf 61);
	white=$(tput setaf 15);
	yellow=$(tput setaf 136);
else
	reset="\e[0m";
	black="\e[1;30m";
	blue="\e[1;34m";
	cyan="\e[1;36m";
	green="\e[1;32m";
	orange="\e[1;33m";
	purple="\e[1;35m";
	red="\e[1;31m";
	violet="\e[1;35m";
	white="\e[1;37m";
	yellow="\e[1;33m";
fi;

# Highlight the user name when logged in as root.
if [[ "${USER}" == "root" ]]; then
	userStyle="${red}";
else
	userStyle="${orange}";
fi;

# Highlight the hostname when connected via SSH.
if [[ "${SSH_TTY}" ]]; then
	hostStyle="${bold}${red}";
else
	hostStyle="${yellow}";
fi;

hammerAndSickle="☭"
musicNote="♫"
lightning="⚡"
ankh="☥"

setopt PROMPT_SUBST
# Set the terminal title and prompt.
PS1="${yellow}%* ${green}%1~ ${violet}$(prompt_git) ${white}${lightning} ${reset}";
export PS1;

PS2="${cyan}→ ${reset}";
export PS2;