Bash prompt with git branch status

.bashrc

function parse_git_dirty {
  [[ $(git status 2> /dev/null | tail -n1) != "nothing to commit (working directory clean)" ]] && echo "*"
}

function parse_git_branch {
  git branch --no-color 2> /dev/null | sed -e '/^[^*]/d' -e "s/* \(.*\)/[\1$(parse_git_dirty)]/"
}

export PS1='\n\n\[\033[0;36m\]\u@$(hostname)\[\033[00m\]\[\033[0;32m\] : \w\[\033[00m\] \[\033[00;36m\]$(parse_git_branch)\n\[\033[00;32m\]\$\[\033[00m\] '

export PS2="\[\033[0;32m\]>\[\033[00m\] "