/etc/pacman.d/hooks

20-mirrorupgrade.hook

[Trigger]
Operation = Upgrade
Type = Package
Target = pacman-mirrorlist

[Action]
Description = Updating pacman-mirrorlist with reflector and removing pacnew...
When = PostTransaction
Depends = reflector
Exec = /usr/bin/env sh -c "reflector --protocol https --country 'Ireland' --latest 30 --number 10 --sort rate --save /etc/pacman.d/mirrorlist; if [[ -f /etc/pacman.d/mirrorlist.pacnew ]]; then rm /etc/pacman.d/mirrorlist.pacnew; fi"

30-pacman-cacheclean.hook

[Trigger]
Operation = Remove
Operation = Install
Operation = Upgrade
Type = Package
Target = *
##Since pacman 5.1.0-1 this hook requires pacman-contrib pkg
[Action]
Description = Keep the last cache and the currently installed.
When = PostTransaction
Exec = /usr/bin/paccache -rvk2

99-z-kernel-reboot.hook

[Trigger]
Operation = Install
Operation = Upgrade
Operation = Remove
Type = File
Target = usr/lib/modules/*

[Action]
Description = Check for upgrade of running kernel
When = PostTransaction
Exec = /bin/bash -c "[[ -f \"/proc/modules\" && ! -d \"/usr/lib/modules/$(uname -r)\" ]] && printf '==> WARNING: %s\n  -> %s\n' 'Running kernel has been updated or removed.' 'Reboot to the new kernel is required.'"