#! /bin/bash
# SPDX-License-Identifier: GPL-2.0
# Copyright (c) 2023 Fujitsu Limited. All Rights Reserved.
#
# FS QA Test No. 567
#
# Tests `xfsrestore -x` which handles an wrong inode in a dump, with the
# multi-level dumps where we hit an issue during development.
# This procedure is cribbed from:
#     xfs/064: test multilevel dump and restores with hardlinks

. ./common/preamble
_begin_fstest auto dump

# Import common functions.
. ./common/dump

_supported_fs xfs
_fixed_by_git_commit xfsdump \
	"XXXXXXXXXXXX xfsrestore: fix rootdir due to xfsdump bulkstat misuse"
_require_xfs_io_command "falloc"
_require_scratch
_require_xfsrestore_xflag

# Create a filesystem which contains a fake root inode
inums=($(_scratch_xfs_create_fake_root))
root_inum=${inums[0]}
fake_inum=${inums[1]}

# Remove unnecessary files
find $SCRATCH_MNT -not -inum $fake_inum -type f -delete
# Rename a file root file to the static filename
find $SCRATCH_MNT -inum $fake_inum -exec mv {} $SCRATCH_MNT/fakeroot \;

# Override the default cleanup function.
_cleanup()
{
	_cleanup_dump
	cd /
	rm -f $tmp.*
}

_ls_size_filter()
{
	#
	# Print size ($5) and fname ($9).
	# The size is significant since we add to the file as part
	# of a file change for the incremental.
	#
	# Filter out the housekeeping files of xfsrestore
	#
	$AWK_PROG 'NF == 9 { print $5, $9 }' |\
	grep -E -v 'dumpdir|housekeeping|dirattr|dirextattr|namreg|state|tree'
}


_create_dumpdir_hardlinks 9

echo "Do the incremental dumps"
i=0
while [ $i -le 9 ]; do
	if [ $i -gt 0 ]; then
		sleep 2
		_modify_level $i
	fi

	_stable_fs
	sleep 2

	echo "********* level $i ***********" >>$seqres.full
	date >>$seqres.full
	find $SCRATCH_MNT -exec $here/src/lstat64 {} \; | sed 's/(00.*)//' >$tmp.dates.$i
	if [ $i -gt 0 ]; then
		let level_1=$i-1
		diff -c $tmp.dates.$level_1 $tmp.dates.$i >>$seqres.full
	else
		cat $tmp.dates.$i >>$seqres.full
	fi

	dumpfile=$tmp.df.level$i
	_do_dump_file -f $dumpfile -l $i
	# Set the wrong root inode number to the dump file
	# as problematic xfsdump used to do.
	$here/src/fake-dump-rootino $dumpfile $fake_inum

	let i=$i+1
done

echo "Listing of what files we start with:"
ls -l $dump_dir | _ls_size_filter

echo "Look at what files are contained in the inc. dump"
i=0
while [ $i -le 9 ]; do
	echo ""
	echo "restoring from df.level$i"
	_do_restore_toc -x -f $tmp.df.level$i | \
		sed -e "s/rootino #${fake_inum}/rootino #FAKENO/g" \
		-e "s/# to ${root_inum}/# to ROOTNO/g"
	let i=$i+1
done

echo "Do the cumulative restores"
_prepare_restore_dir
i=0
while [ $i -le 9 ]; do
	if [ $i -eq 0 ]; then
		# The root inode is fixed at the first restore
		opt='-x'
	else
		opt=
	fi
	echo ""
	echo "restoring from df.level$i"
	_do_restore_file_cum $opt -f $tmp.df.level$i | \
		sed -e "s/rootino #${fake_inum}/rootino #FAKENO/g" \
		-e "s/# to ${root_inum}/# to ROOTNO/g"
	echo "ls -l restore_dir"
	ls -lR $restore_dir | _ls_size_filter | _check_quota_file
	let i=$i+1
done

# success, all done
status=0
exit