dotfiles/bash_prompt

########################################################################
# bash_prompt, from @mathiasbynens
# slightly modified
# https://github.com/mathiasbynens/dotfiles/blob/master/.bash_prompt
########################################################################

# @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
	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 256)
	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_dirty() {
	[[ $(git status 2> /dev/null | tail -n1) != *"working directory clean"* ]] && echo "*"
}

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=$(git status --porcelain 2>/dev/null)
		echo -n "${PURPLE}${branch}"
		[ -n "${status}" ] && echo -n "*"
	fi
}

PS1="\n\[${BOLD}${MAGENTA}\]\u \[$RESET\]at \[$ORANGE\]\h \[$RESET\]in \[$GREEN\]\w\[$WHITE\]\$([[ -n \$(git branch 2> /dev/null) ]] && echo \" on \")\[$PURPLE\]\$(parse_git_branch)\[$WHITE\]\n→ \[$RESET\]"