#!/bin/sh
# Copyright (C) 2015 Red Hat, Inc. All rights reserved.
#
# This copyrighted material is made available to anyone wishing to use,
# modify, copy, or redistribute it subject to the terms and conditions
# of the GNU General Public License v.2.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software Foundation,
# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA

#
# play with thin-pool resize in corner cases
#

SKIP_WITH_LVMLOCKD=1
SKIP_WITH_LVMPOLLD=1

export LVM_TEST_THIN_REPAIR_CMD=${LVM_TEST_THIN_REPAIR_CMD-/bin/false}

. lib/inittest

aux have_thin 1 0 0 || skip

test -n "$LVM_TEST_THIN_RESTORE_CMD" || LVM_TEST_THIN_RESTORE_CMD=$(which thin_restore) || skip
"$LVM_TEST_THIN_RESTORE_CMD" -V || skip

#
# Temporary solution to create some occupied thin metadata
# This heavily depends on thin metadata output format to stay as is.
# Currently it expects 2MB thin metadata and 200MB data volume size
# Argument specifies how many devices should be created.
fake_metadata_() {
	echo '<superblock uuid="" time="1" transaction="'$2'" data_block_size="128" nr_data_blocks="3200">'
	for i in $(seq 1 $1)
	do
		echo ' <device dev_id="'$i'" mapped_blocks="37" transaction="0" creation_time="0" snap_time="1">'
		echo '  <range_mapping origin_begin="0" data_begin="0" length="37" time="0"/>'
		echo ' </device>'
	done
	echo "</superblock>"
}

aux have_thin 1 10 0 || skip

aux prepare_pvs 3 256

vgcreate -s 1M $vg $(cat DEVICES)

aux lvmconf 'activation/thin_pool_autoextend_percent = 30' \
	    'activation/thin_pool_autoextend_threshold = 70'

fake_metadata_ 400 0 >data
lvcreate -L200 -T $vg/pool
lvchange -an $vg

lvcreate -L2M -n $lv1 $vg
"$LVM_TEST_THIN_RESTORE_CMD" -i data -o "$DM_DEV_DIR/mapper/$vg-$lv1"
lvconvert -y --thinpool $vg/pool --poolmetadata $vg/$lv1

# Cannot resize if set to 0%
not lvextend --use-policies --config 'activation{thin_pool_autoextend_percent = 0}' $vg/pool 2>&1 | tee err
grep "0%" err

# Locally active LV is needed
not lvextend --use-policies $vg/pool 2>&1 | tee err
grep "locally" err

lvchange -ay $vg

# Creation of new LV is not allowed when thinpool is over threshold
not lvcreate -V10 $vg/pool


lvextend --use-policies $vg/pool "$dev2" "$dev3"
#should lvextend -l+100%FREE $vg/pool2

lvs -a $vg

vgremove -ff $vg
