Bash RC Git Branch

function parse_git_branch() 
{
	ref=$(git symbolic-ref HEAD 2> /dev/null) || return
	branch=$(git branch | grep -e '*' | sed s/\*\ //g)
	echo ${branch}" "
}

shopt -s autocd

function update_prompt()
{
	export PS1="\W $(parse_git_branch)\$ "
}

update_prompt
export -f update_prompt

function cd() 
{ 
	$@
	update_prompt
}