#!/bin/sh -e

. /usr/share/ganeti/extstorage/zfs/defaults.sh

VOL() {
	echo "VOL $@" >&2
	while [ ! -z "$1" ] ; do
		echo "XXX $1" >&2
		case $1 in 
		*$EXTP_VG*) VOL=`echo $1 | cut -d/ -f4` ;;
		esac
		shift
	done
	export VOL_NAME=$VOL
	echo "VOL_NAME $VOL_NAME" >&2
}

# lvs --noheadings --units=m --nosuffix '--separator=|' -ovg_name,lv_name,lv_size,lv_attr
if echo $* | grep -q vg_name,lv_name,lv_size,lv_attr ; then
	zfs list -o name,volsize,lv:s,lv:a -t volume -r $EXTP_ZFS -H -p | sed "s:$EXTP_ZFS/*::" | \
	awk '{ print "  '$EXTP_VG'|"$1"|" $2 / 1024 / 1024 "|"$3"wi-a"$4"--" }'
	/sbin/lvm lvs $* 2>/dev/null || exit 0 # local, might fail

# gnt-instance modify -t drbd -n box02 zfs
# lvs --noheadings '--separator=|' --units=k --nosuffix -olv_attr,lv_kernel_major,lv_kernel_minor,vg_extent_size,stripes,devices /dev/ffzgvg/c72d9ea7-f396-4104-b4ee-8b613da32051.disk1
elif echo $* | grep -q lv_attr,lv_kernel_major,lv_kernel_minor,vg_extent_size,stripes,devices ; then

	VOL $5 $6
	a=$(zfs_get lv:a)
	s=$(zfs_get lv:s)
	ls -al `readlink -f /dev/zvol/$EXTP_ZFS/$VOL_NAME` | sed 's/,//' | awk '{ print "  '$s'-wi-a'$a'--|" $5 "|" $6 "|'$(zfs_get volblocksize)'|1|" $10 "(" $6 * 1280 + $6 ")" }' # FIXME what is number after device?

# lvs -o tags --noheadings --nosuffix /dev/ffzgvg/88c6b19f-7b3f-4041-bb9c-d2a0716e459c.disk0
elif [ "$1" = "-o" ] ; then
	VOL $@
	echo $(zfs_get lv:tag)
else

	/sbin/lvm lvs $*
fi