gistfile1.txt

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/"
}
function git_prompt {
  local dirty=$(parse_git_dirty)
  local branch=$(parse_git_branch)
  local color="32"

  [[ "$dirty" = "*" ]] && color="33"

  PS1="\h:\W\[\033[0;${color}m\][${branch}${dirty}]\[\e[0m\]$ "
}

export PROMPT_COMMAND=git_prompt