#!/sbin/openrc-run
# Copyright 1999-2016 Gentoo Foundation
# Created by Donat Kh donat@opmbx.org
# Distributed under the terms of the GNU General Public License v2
# $Id$

description="Create a snapshot of logical volume(s)"

depend() {
	need lvm
}

start() {
	[[ ${#LV_LIST[@]} -eq 0 ]] && \
		ewarn "You must set LV_LIST in /etc/conf.d/lvm-snapshot"
	for lv in "${LV_LIST[@]}"; do
		ebegin "Creating snapshot for LV $lv"
		[[ -e "/dev/${lv}_${LV_SUFFIX}" ]] && \
			lvremove "${lv}_${LV_SUFFIX}" -f
		lvcreate -s -n "${lv}_${LV_SUFFIX}" -L ${LV_SIZE} "$lv"
		eend $? "Failed to create a snapshot for $lv ($?)"
	done
}