Pretty git-ified prompt in bash

gistfile1.txt

# ~/.bash_profile
# give prompt as  ~/foo(branch_name*)
# where the * indicates uncommitted work
parse_git_branch() {
  git branch 2> /dev/null | sed -e '/^[^*]/d' -e 's/* \(.*\)/(\1)/'
}
export PS1='\[\033[36;40m\]\w\[\033[0;33m\]$(parse_git_branch)\[\e[0m\]$ '