#!/bin/sh
#
# Runs update-initramfs(8) to create/update an initramfs for specified
# version (if the pkg that is triggering it) or for the currently
# installed kernel otherwise.
#
# Arguments:	$1 = action [run/targets]
#		$2 = target [post-install]
#		$3 = pkgname
#		$4 = version
#
trigger="initramfs-tools"

case "$1" in
targets)
	echo "post-install"
	;;
run)
	[ ! -x ./usr/sbin/update-initramfs ] && exit 0
	[ "$2" != "post-install" ] && exit 1

	echo "Running $trigger trigger..."

	if [ "$(pwd)" = "/" ]; then
		mntproc_cmd="mount -t proc proc /proc"
		umntproc_cmd="umount /proc"
		mntsys_cmd="mount -t sysfs none /sys"
		umntsys_cmd="umount /sys"
		initramfs_cmd="update-initramfs"
	else
		mntproc_cmd="chroot . mount -t proc proc ./proc"
		umntproc_cmd="chroot . umount ./proc"
		mntsys_cmd="chroot . mount -t sysfs none ./sys"
		umntsys_cmd="chroot . umount ./sys"
		initramfs_cmd="chroot . update-initramfs"
	fi

	if [ "$3" = "kernel" -a ! -f ./var/lib/initramfs-tools/$4 ]; then
		initramfs_cmd="$initramfs_cmd -c -k $4"
	elif [ "$3" != "kernel" -o ! -f ./var/lib/initramfs-tools/$4 ]; then
		initramfs_cmd="$initramfs_cmd -c -k $(xbps-pkgdb version kernel)"
	else
		initramfs_cmd="$initramfs_cmd -u -k $4"
	fi

	${mntproc_cmd}
	${mntsys_cmd}
	${initramfs_cmd}
	${umntproc_cmd}
	${umntsys_cmd}
	;;
*)
	exit 1
	;;
esac

exit 0