verbose dirty git prompt

dirtygitprompt.sh

# origin of work http://henrik.nyh.se/2008/12/git-dirty-prompt
function parse_git_dirty {
  status=`git status 2> /dev/null`
  dirty=`    echo -n "${status}" 2> /dev/null | grep -q "Changed but not updated" 2> /dev/null; echo "$?"`
  untracked=`echo -n "${status}" 2> /dev/null | grep -q "Untracked files" 2> /dev/null; echo "$?"`
  ahead=`    echo -n "${status}" 2> /dev/null | grep -q "Your branch is ahead of" 2> /dev/null; echo "$?"`
  newfile=`  echo -n "${status}" 2> /dev/null | grep -q "new file:" 2> /dev/null; echo "$?"`
  renamed=`  echo -n "${status}" 2> /dev/null | grep -q "renamed:" 2> /dev/null; echo "$?"`
  bits=''
  if [ "${dirty}" == "0" ]; then
    bits="${bits}☭"
  fi
  if [ "${untracked}" == "0" ]; then
    bits="${bits}?"
  fi
  if [ "${newfile}" == "0" ]; then
    bits="${bits}*"
  fi
  if [ "${ahead}" == "0" ]; then
    bits="${bits}+"
  fi
  if [ "${renamed}" == "0" ]; then
    bits="${bits}>"
  fi
  echo "${bits}"
}

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

export PS1='\[\033[00;32m\]\u\[\033[01m\]@\[\033[00;36m\]\h\[\033[01m\] \! \[\033[00;35m\]\w\[\033[00m\]\[\033[01;30m\]$(parse_git_branch)\[\033[00m\]\$ '