#!/bin/bash

#
# Copyright (C) 2007 Karel Zak <kzak@redhat.com>
#
# This file is part of util-linux-ng.
#
# 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.
#
# 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.
#

# Test cramfs

. commands.sh
. functions.sh

TS_COMPONENT="mkfs.cramfs"
TS_DESC="mkfs"

ts_init

if [ $UID != 0 ]; then
	ts_skip "not root permissions"
fi

set -o pipefail


touch $TS_OUTPUT

IMAGE="$TS_OUTDIR/cramfs-loop.img"
IMAGE_DATA="$TS_OUTDIR/cramfs-data"
IMAGE_RE=$( echo $IMAGE | sed 's:/:\\/:g' )
LABEL="testCramfs"
MOUNTPOINT="$TS_OUTDIR/cramfs-mnt"

echo "create mountpoint dir" >> $TS_OUTPUT
if [ ! -d "$MOUNTPOINT" ]; then
	mkdir -p $MOUNTPOINT
fi

echo "generate data" >> $TS_OUTPUT
if [ ! -d "$IMAGE_DATA" ]; then
	mkdir -p $IMAGE_DATA
	for d in `seq 0 110`; do
		DIRNAME="$IMAGE_DATA/$(printf "dir-%03d" $d)"
		mkdir -p $DIRNAME
		for f in `seq 0 10`; do
			FILENAME="$DIRNAME/$(printf "data.%03d" $f)"
			printf "data in %03d-%03d" $d $f >> $FILENAME
		done
	done
fi

echo "list checksums from original data" >> $TS_OUTPUT
find $IMAGE_DATA -type f -exec md5sum {} \; >> $TS_OUTPUT
echo >> $TS_OUTPUT

echo "create cramfs image" >> $TS_OUTPUT
$TS_CMD_MKCRAMFS -n $LABEL $IMAGE_DATA $IMAGE 2>&1 >> $TS_OUTPUT

if [ ! -s "$IMAGE" ]; then
	echo "Cannot create $IMAGE" >> $TS_OUTPUT
	ts_finalize
fi

echo "count MD5 from the image" >> $TS_OUTPUT
md5sum $IMAGE 2>&1 >> $TS_OUTPUT
echo >> $TS_OUTPUT

echo "create loop device from image" >> $TS_OUTPUT
DEVICE=$( $TS_CMD_LOSETUP -f )
$TS_CMD_LOSETUP $DEVICE $IMAGE 2>&1 >> $TS_OUTPUT


echo "check the image" >> $TS_OUTPUT
blkid -c /dev/null -w /dev/null -s TYPE $DEVICE 2>&1 | grep -q 'TYPE="cramfs"' 2>&1 >> $TS_OUTPUT

if [ "$?" != "0" ]; then
	echo "Cannot found cramfs on $DEVICE" >> $TS_OUTPUT
	ts_finalize
fi

echo "mount the image" >> $TS_OUTPUT
$TS_CMD_MOUNT -L $LABEL $MOUNTPOINT 2>&1 >> $TS_OUTPUT

# check it
grep -q $DEVICE /proc/mounts

if [ "$?" != "0" ]; then
	echo "Cannot found $DEVICE in /proc/mounts" >> $TS_OUTPUT
fi

echo "list the image" >> $TS_OUTPUT
ls -laR $MOUNTPOINT >> $TS_OUTPUT
echo >> $TS_OUTPUT

echo "list checksums from new data" >> $TS_OUTPUT
find $MOUNTPOINT -type f -exec md5sum {} \; >> $TS_OUTPUT
echo >> $TS_OUTPUT

echo "umount the image" >> $TS_OUTPUT
$TS_CMD_UMOUNT $DEVICE
$TS_CMD_LOSETUP -d $DEVICE 2>&1 >> $TS_OUTPUT
ts_finalize