#! /bin/bash
# FS QA Test 161
#
# seed sprout functionality test
#  Create a seed device, mount it and, add a new device to create a
#  sprout filesystem.
#
#-----------------------------------------------------------------------
# Copyright (c) 2018 Oracle.  All Rights Reserved.
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License as
# published by the Free Software Foundation.
#
# This program is distributed in the hope that it would be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write the Free Software Foundation,
# Inc.,  51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
#-----------------------------------------------------------------------
#

seq=`basename $0`
seqres=$RESULT_DIR/$seq
echo "QA output created by $seq"

here=`pwd`
tmp=/tmp/$$
status=1	# failure is the default!
trap "_cleanup; exit \$status" 0 1 2 3 15

_cleanup()
{
	cd /
	rm -f $tmp.*
}

# get standard environment, filters and checks
. ./common/rc
. ./common/filter

# remove previous $seqres.full before test
rm -f $seqres.full

# real QA test starts here

# Modify as appropriate.
_supported_fs btrfs
_supported_os Linux
_require_command "$BTRFS_TUNE_PROG" btrfstune
_require_scratch_dev_pool 2

_scratch_dev_pool_get 2

dev_seed=$(echo $SCRATCH_DEV_POOL | awk '{print $1}')
dev_sprout=$(echo $SCRATCH_DEV_POOL | awk '{print $2}')

create_seed()
{
	_mkfs_dev $dev_seed
	run_check _mount $dev_seed $SCRATCH_MNT
	$XFS_IO_PROG -f -d -c "pwrite -S 0xab 0 256K" $SCRATCH_MNT/foobar >\
		/dev/null
	echo -- golden --
	od -x $SCRATCH_MNT/foobar
	_run_btrfs_util_prog filesystem show -m $SCRATCH_MNT
	_scratch_unmount
	$BTRFS_TUNE_PROG -S 1 $dev_seed
	run_check _mount $dev_seed $SCRATCH_MNT
}

create_sprout()
{
	_run_btrfs_util_prog device add -f $dev_sprout $SCRATCH_MNT
	_scratch_unmount
	run_check _mount $dev_sprout $SCRATCH_MNT
	echo -- sprout --
	od -x $SCRATCH_MNT/foobar
	_scratch_unmount
}

create_seed
create_sprout

_scratch_dev_pool_put

status=0
exit