# @gf3’s Sexy Bash Prompt, inspired by “Extravagant Zsh Prompt”
# Shamelessly copied from https://github.com/gf3/dotfiles
# Screenshot: http://i.imgur.com/s0Blh.png

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

if tput setaf 1 &> /dev/null; then
	tput sgr0; # reset colors
	if [[ $(tput colors) -ge 256 ]] 2>/dev/null; then
		MAGENTA=$(tput setaf 9);
		ORANGE=$(tput setaf 172);
		GREEN=$(tput setaf 190);
		PURPLE=$(tput setaf 141);
		WHITE=$(tput setaf 0);
	else
		MAGENTA=$(tput setaf 5);
		ORANGE=$(tput setaf 4);
		GREEN=$(tput setaf 2);
		PURPLE=$(tput setaf 1);
		WHITE=$(tput setaf 7);
	fi;
	BOLD=$(tput bold);
	RESET=$(tput sgr0);
else
	MAGENTA="\033[1;31m";
	ORANGE="\033[1;33m";
	GREEN="\033[1;32m";
	PURPLE="\033[1;35m";
	WHITE="\033[1;37m";
	BOLD="";
	RESET="\033[m";
fi;

export MAGENTA;
export ORANGE;
export GREEN;
export PURPLE;
export WHITE;
export BOLD;
export RESET;

function parse_git_branch() {
	local branch=$(git rev-parse --abbrev-ref HEAD 2>/dev/null);
	if [ -n "${branch}" ]; then
		[ "${branch}" == "HEAD" ] && local branch=$(git rev-parse --short HEAD 2>/dev/null);
		local status=$(git status --porcelain 2>/dev/null);
		echo -n " on ${PURPLE}${branch}";
		[ -n "${status}" ] && echo -n "*";
	fi;
}

export PS1="\[${BOLD}${MAGENTA}\]\u \[$WHITE\]at \[$ORANGE\]\h \[$WHITE\]in \[$GREEN\]\w\[$WHITE\]\$(parse_git_branch)\[$WHITE\]\n\$ \[$RESET\]";
export PS2="\[$ORANGE\]→ \[$RESET\]";