.bashrc

function get_short_commit {
  git log -n 1 --format=oneline --abbrev-commit 2> /dev/null | sed -e 's/\([0-9a-f]*\)\(.*\)/\1/'
}
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 $(get_short_commit)]$(parse_git_dirty)/" 
}

if [ "\$(type -t __git_ps1)" ]; then
    PS1="\$(parse_git_branch)\n$PS1" 
fi