post_install() {
  echo -n "updating Vim help tags... "
  /usr/bin/vim --noplugin -u NONE -U NONE \
          --cmd ":helptags /usr/share/vim/doc" --cmd ":q" > /dev/null 2>&1
  echo "done."
}

post_upgrade() {
  post_install $1
}

post_remove() {
  post_install
}