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

post_upgrade() {
  post_install
}

post_remove() {
  post_install
}