#! /bin/sh
# XFS QA Test No. 031
#
# exercise xfs_repair - ensure repeated use doesn't corrupt
#
#-----------------------------------------------------------------------
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# any, provided herein do not apply to combinations of this program with
# other software, or any other product whatsoever.
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# with this program; if not, write the Free Software Foundation, Inc., 59
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# 
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# 
# http://www.sgi.com 
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# For further information regarding this notice, see: 
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# http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
#-----------------------------------------------------------------------
#
# creator
owner=nathans@sgi.com

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

here=`pwd`
tmp=/tmp/$$
status=1	# failure is the default!
trap "rm -f $tmp.*; exit \$status" 0 1 2 3 15
rm -f $seq.full

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

_check_repair()
{
	_scratch_xfs_repair >$tmp.0 2>&1
	for i in 1 2 3 4
	do
		echo "Repairing, iteration $i" | tee -a $seq.full
		_scratch_xfs_repair 2>&1 | tee -a $seq.full >$tmp.$i
		diff $tmp.0 $tmp.$i >> $seq.full
		if [ $? -ne 0 ]; then
			echo "ERROR: repair round $i differs (see $seq.full)"
			break
		fi
		# echo all interesting stuff...
		perl -ne '
			s/(rebuilding directory inode) (\d+)/\1 INO/g;
			s/internal log/<TYPEOF> log/g;
			s/external log on \S+/<TYPEOF> log/g;
			/^\S+/ && print;
		' $tmp.$i
	done
	echo
}

# prototype file to create various directory forms
_create_proto()
{
	total=$1
	count=0

	# take inode size into account for non-shortform directories...
	[ $total -gt 0 ] && total=`expr $total \* $isize / 512`

	cat >$tmp.proto <<EOF
DUMMY1
0 0
: root directory
d--777 3 1
lost+found d--755 3 1
$
EOF

	while [ $count -lt $total ]
	do
		count=`expr $count + 1`
		cat >>$tmp.proto <<EOF
${count}_of_${total}_xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx ---755 3 1 /bin/true
EOF
	done
	echo '$' >>$tmp.proto
}

# real QA test starts here
# 
_require_nobigloopfs
_require_scratch

MKFSV1="-p $tmp.proto -n version=1"
MKFSV2="-p $tmp.proto -n version=2"

# sanity test - default + one root directory entry
# Note: must do this proto/mkfs now for later inode size calcs
_create_proto 0
echo "=== version 1, one entry"
_scratch_mkfs_xfs $MKFSV1 >$tmp.mkfs0 2>&1
_filter_mkfs <$tmp.mkfs0 >/dev/null 2>$tmp.mkfs
source $tmp.mkfs
_check_repair
echo "=== version 2, one entry (shortform)"
_scratch_mkfs_xfs $MKFSV2 | _filter_mkfs >/dev/null 2>&1
_check_repair

# block-form root directory & repeat
_create_proto 20
echo "=== version 1, twenty entries"
_scratch_mkfs_xfs $MKFSV1 | _filter_mkfs >/dev/null 2>&1
_check_repair
echo "=== version 2, twenty entries (block form)"
_scratch_mkfs_xfs $MKFSV2 | _filter_mkfs >/dev/null 2>&1
_check_repair

# leaf-form root directory & repeat
_create_proto 1000
echo "=== version 1, thousand entries"
_scratch_mkfs_xfs $MKFSV1 | _filter_mkfs >/dev/null 2>&1
_check_repair
echo "=== version 2, thousand entries (leaf form)"
_scratch_mkfs_xfs $MKFSV2 | _filter_mkfs >/dev/null 2>&1
_check_repair

# success, all done
status=0
exit