Here’s a script that looks for reboot-requiring packages from /etc/pacman.d/hooks/eos-reboot-required.hook.
Otherwise it is quite similar to what @Kresimir showed.
#!/bin/bash
# Check if a reboot would be necessary after system update.
DIE() {
echo "Error: $1" >&2
exit 1
}
Main()
{
local updates
local hookpkgs
local up hook
pacman -Q eos-update-notifier >&/dev/null || DIE "sorry, package eos-update-notifier is required."
readarray -t updates <<< $(checkupdates | awk '{print $1}')
readarray -t hookpkgs <<< $(cat /etc/pacman.d/hooks/eos-reboot-required.hook | grep "^Target = " | awk '{print $3}')
for up in "${updates[@]}" ; do
for hook in "${hookpkgs[@]}" ; do
case "$up" in
$hook)
echo "Reboot will be required after system update." >&2
return 0
;;
esac
done
done
echo "Reboot will not be required after updating." >&2
return 1
}
Main "$@"