#!/bin/sh

set -e

function help() {
	echo "usage: ${0} [OPTIONS]"
	echo
	echo ' -h  this help'
	echo ' -y  update sync databases'
}

while getopts 'hy' opt; do
	case ${opt} in
		h)
			help
			exit 0
			;;
		y)
			pacman -Sy
			;;
	esac
done

# remove the symlink for now, will be recreated it later
rm -f /system-update

# check for available updates
if [ "$(pacman -Qu | grep -v '\[ignored\]' | wc -l)" -eq 0 ]; then
	echo "No updates available."
	exit 0
fi

# download packages
pacman -Suw --noconfirm

# enable system update
ln -sf /var/cache/pacman/pkg /system-update