Ubuntu style git-enhanced prompt

gitprompt.sh

parse_git_dirty() {
  [[ $(git status --porcelain 2> /dev/null) ]] && echo "*"
}

parse_git_branch() {
     git branch 2> /dev/null | sed -e '/^[^*]/d' -e "s/* \(.*\)/ (\1$(parse_git_dirty))/"
}
export PS1="\[\e]0;\u@\h: \w\a\]${debian_chroot:+($debian_chroot)}\[\033[01;32m\]\u@\h\[\033[00m\]:\[\033[01;34m\]\w\[\033[33m\]\$(parse_git_branch)\[\033[00m\]$ "