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#!/bin/bash -
# libguestfs
# Copyright (C) 2012 Red Hat Inc.
#
# 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; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will 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 to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
# Test btrfs adding/removing devices.
#
# This test is intended to try and abuse btrfs by writing lots of data
# to the disk, then instructing btrfs to move the data between
# devices.
set -e
guestfish=../../fish/guestfish
# Allow the test to be skipped since btrfs is often broken.
if [ -n "$SKIP_TEST_BTRFS_DEVICES_SH" ]; then
echo "$0: skipping test because environment variable is set."
exit 77
fi
# If btrfs is not available, bail.
if ! $guestfish -a /dev/null run : available btrfs; then
echo "$0: skipping test because btrfs is not available"
exit 77
fi
rm -f test[1234].img
$guestfish <<EOF
# Add four empty disks
sparse test1.img 1G
sparse test2.img 1G
sparse test3.img 1G
sparse test4.img 1G
run
part-disk /dev/sda mbr
part-disk /dev/sdb mbr
part-disk /dev/sdc mbr
part-disk /dev/sdd mbr
mkfs-btrfs "/dev/sda1 /dev/sdb1"
mount /dev/sda1 /
mkdir /data1
tar-in ../data/filesanddirs-10M.tar.xz /data1 compress:xz
# In btrfs-progs 0.19, a test was added which prevents us from
# deleting the mount device (/dev/sda1) although that restriction
# isn't necessary. RHBZ#816346. If/when this is fixed, we could
# delete and re-add /dev/sda1 below.
btrfs-device-add "/dev/sdc1 /dev/sdd1" /
btrfs-device-delete "/dev/sdb1" /
btrfs-device-add "/dev/sdb1" /
btrfs-device-delete "/dev/sdc1 /dev/sdd1" /
mkdir /data2
tar-in ../data/filesanddirs-10M.tar.xz /data2 compress:xz
btrfs-device-add "/dev/sdc1 /dev/sdd1" /
btrfs-device-delete "/dev/sdb1" /
btrfs-device-add "/dev/sdb1" /
btrfs-device-delete "/dev/sdc1 /dev/sdd1" /
mkdir /data3
tar-in ../data/filesanddirs-10M.tar.xz /data3 compress:xz
btrfs-device-add "/dev/sdc1 /dev/sdd1" /
btrfs-device-delete "/dev/sdb1" /
btrfs-device-add "/dev/sdb1" /
btrfs-device-delete "/dev/sdc1 /dev/sdd1" /
mkdir /data4
tar-in ../data/filesanddirs-10M.tar.xz /data4 compress:xz
btrfs-device-add "/dev/sdc1 /dev/sdd1" /
btrfs-device-delete "/dev/sdb1" /
btrfs-device-add "/dev/sdb1" /
btrfs-device-delete "/dev/sdc1 /dev/sdd1" /
EOF
rm -f test[1234].img
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