#!/bin/bash

#
# Copyright (C) 2009 Karel Zak <kzak@redhat.com>
#
# This file is part of util-linux.
#
# This file 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 file 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.
#

TS_TOPDIR="${0%/*}/../.."
TS_DESC="superblocks probing"

. "$TS_TOPDIR"/functions.sh

ts_init "$*"

ts_check_test_command "$TS_CMD_BLKID"
ts_check_prog "xz"

mkdir -p $TS_OUTDIR/images-fs

for img in $(ls $TS_SELF/images-fs/*.img.xz | sort); do
	name=$(basename $img .img.xz)
	outimg=$TS_OUTDIR/images-fs/${name}.img

	xz -dc $img > $outimg

	#
	# multi session images, the image name contains "-multi-" and all
	# -<numbers>- are interpreted as offset to the sessions. The offset is
	# calculated in 2048 sectors.  For example: iso-multi-0-174-348-genisoimage.img
	#
	if [[ $name =~ (.*multi.*) ]]; then
		sessions=$(echo "$name" \
			| awk 'BEGIN { RS="-" } /^[[:digit:]]+$/ { print $0 }')
		name=$(echo "$name" \
			| awk 'BEGIN { RS="-"; ORS="-" } !/^[[:digit:]]+$/ { print $1 }' \
			| sed 's/-$//g')
		for off in $sessions; do
			ts_init_subtest $name-$off
			$TS_CMD_BLKID -p -o udev $outimg \
				--hint session_offset=$(( $off * 2048 )) \
				2> $TS_ERRLOG | sort > $TS_OUTPUT
			ts_finalize_subtest
		done
	#
	# Standard filesystem images
	#
	else
		ts_init_subtest $name
		$TS_CMD_BLKID -p -o udev $outimg 2> $TS_ERRLOG | sort > $TS_OUTPUT
		ts_finalize_subtest
	fi
done

ts_finalize