#!/sbin/openrc-run

depend() {
	before checkfs fsck swap
	after hwdrivers modules device-mapper
}

dm_in_proc() {
	local rc=0 i=
	for i in devices misc; do
		grep -qs 'device-mapper' /proc/$i
		rc=$(($rc + $?))
	done
	return $rc
}

start() {
	local rc=0 msg=
	ebegin "Setting up the Logical Volume Manager"
	if [ -e /proc/modules ] && ! dm_in_proc; then
		modprobe dm-mod 2>/dev/null
	fi
	if [ -d /proc/lvm ] || dm_in_proc; then
		vgscan --mknodes --ignorelockingfailure
		vgchange --sysinit --activate y
		rc=$?
	else
		rc=1
	fi
	eend $rc
}

stop() {
	ebegin "Shutting down the Logical Volume Manager"
	vgchange --ignorelockingfailure -a n >/dev/null 2>&1
	# At this stage all filesystems except rootfs have been
	# unmounted. A "standard" error here is failure to deactivate
	# the VG containing the rootfs (as it is still obviously in use)
	# so why bother giving a non-zero error code?
	eend 0
}