infodir=usr/share/info
filelist=(grub.info grub-dev.info)

post_install() {
  if [ -f /boot/grub/grub.cfg.pacsave ]; then
    echo "Copying /boot/grub/grub.cfg.pacsave to /boot/grub/grub.cfg"
    install -Dm644 /boot/grub/grub.cfg.pacsave /boot/grub/grub.cfg
  fi

  cat << 'EOM'
Generating grub.cfg.example config file...
This may fail on some machines running a custom kernel.
EOM
  
  grub-mkconfig -o /boot/grub/grub.cfg.example 2> /dev/null
  echo "done."

  for file in ${filelist[@]}; do
    install-info $infodir/$file.gz $infodir/dir 2> /dev/null
  done
}

post_upgrade() {
  for file in ${filelist[@]}; do
    install-info $infodir/$file.gz $infodir/dir 2> /dev/null
  done
}

pre_remove() {
  for file in ${filelist[@]}; do
    install-info --delete $infodir/$file $infodir/dir 2> /dev/null
  done
}