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 $1
}

post_remove() {
  post_install $1
}

op=$1
shift

$op $*
