jamiew

parse_git_branch() {
  ref=$(git symbolic-ref -q HEAD 2> /dev/null) || return
  printf "${1:-(%s)}" "${ref#refs/heads/}"
}

parse_svn_revision() {
  local DIRTY REV=$(svn info 2>/dev/null | grep Revision | sed -e 's/Revision: //')
  [ "$REV" ] || return
  [ "$(svn st)" ] && DIRTY=' *'
  echo "(r$REV$DIRTY)"