util-linux/tests/functions.sh

TS_OUTDIR="output"
TS_DIFFDIR="diff"
TS_EXPECTEDDIR="expected"
TS_INPUTDIR="input"
TS_VERBOSE="no"

function ts_skip {
	echo " IGNORE ($1)"
	if [ -n "$2" ] && [ -b "$2" ]; then
		ts_device_deinit "$2"
	fi
	exit 0
}

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

function ts_failed {
	if [ x"$1" == x"" ]; then
		echo " FAILED ($TS_NAME)"
	else
		echo " FAILED ($1)"
	fi
	exit 1
}

function ts_ok {
	if [ x"$1" == x"" ]; then
		echo " OK"
	else
		echo " OK ($1)"
	fi
	exit 0
}

function ts_log {
	echo "$1" >> $TS_OUTPUT
	[ "$TS_VERBOSE" == "yes" ] && echo "$1"
}

function ts_init {
	export LANG="en_US.UTF-8":
	TS_NAME=$(basename $0)
	if [ ! -d $TS_OUTDIR ]; then
		mkdir -p $TS_OUTDIR
	fi
	if [ ! -d $TS_DIFFDIR ]; then
		mkdir -p $TS_DIFFDIR
	fi
	[ "$1" == "--verbose" ] && TS_VERBOSE="yes"
	TS_OUTPUT="$TS_OUTDIR/$TS_NAME"
	TS_DIFF="$TS_DIFFDIR/$TS_NAME"
	TS_EXPECTED="$TS_EXPECTEDDIR/$TS_NAME"
	TS_INPUT="$TS_INPUTDIR/$TS_NAME"

	rm -f $TS_OUTPUT
	touch $TS_OUTPUT

	printf "%15s: %-25s ..." "$TS_COMPONENT" "$TS_DESC"
}

function ts_finalize {
	local res=0

	if [ -s $TS_EXPECTED ]; then
		if [ -s $TS_OUTPUT ]; then
			diff -u $TS_EXPECTED $TS_OUTPUT > $TS_DIFF
			if [ -s $TS_DIFF ]; then
				res=1
			fi
		else
			res=1
		fi
	else
		echo " IGNORE (expected output undefined)"
		exit 0
	fi
	if [ $res -eq 0 ]; then
		ts_ok $1
	else
		ts_failed $1
	fi
}

function ts_die {
	ts_log "$1"
	if [ -n "$2" ] && [ -b "$2" ]; then
		ts_device_deinit "$2"
	fi
	ts_finalize
}

function ts_device_init {
	local IMAGE="$TS_OUTDIR/$TS_NAME.img"
	local IMAGE_RE=$( echo "$IMAGE" | sed 's:/:\\/:g' )
	local DEV=""

	dd if=/dev/zero of="$IMAGE" bs=1M count=5 &> /dev/null

	$TS_CMD_LOSETUP -f "$IMAGE" 2>&1 >> $TS_OUTPUT
	DEV=$( $TS_CMD_LOSETUP -a | gawk 'BEGIN {FS=":"} /'$IMAGE_RE'/ { print $1 }' )

	if [ -z "$DEV" ]; then
		ts_device_deinit $DEV
		return 1		# error
	fi

	echo $DEV
	return 0			# succes
}

function ts_device_deinit {
	local DEV="$1"

	if [ -b "$DEV" ]; then
		$TS_CMD_UMOUNT "$DEV" &> /dev/null
		$TS_CMD_LOSETUP -d "$DEV" &> /dev/null
	fi
}

function ts_udev_dev_support {
	ldd $TS_CMD_MOUNT | grep -q 'libvolume_id' 2>&1 >> $TS_OUTPUT
	if [ "$?" == "0" ]; then
		local HAS_VOLUMEID="yes"
	fi
	if [ -n "$HAS_VOLUMEID" ] && [ ! -L "/dev/disk/$1/$2" ]; then
		return 1
	fi
	return 0
}

function ts_uuid_by_devname {
	local DEV="$1"
	local UUID=""
	if [ -x "$TS_ECMD_BLKID" ]; then
		UUID=$($TS_ECMD_BLKID -c /dev/null -w /dev/null -s "UUID" $DEV | sed 's/.*UUID="//g; s/"//g')
	elif [ -x "$TS_ECMD_VOLID" ]; then
		UUID=$($TS_ECMD_VOLID -u $DEV)
	fi
	echo $UUID
}

function ts_label_by_devname {
	local DEV="$1"
	local TYPE=""
	if [ -x "$TS_ECMD_BLKID" ]; then
		LABEL=$($TS_ECMD_BLKID -c /dev/null -w /dev/null -s "LABEL" $DEV | sed 's/.*LABEL="//g; s/"//g')
	elif [ -x "$TS_ECMD_VOLID" ]; then
		LABEL=$($TS_ECMD_VOLID -l $DEV)
	fi
	echo $LABEL
}

function ts_fstype_by_devname {
	local DEV="$1"
	local TYPE=""
	if [ -x "$TS_ECMD_BLKID" ]; then
		TYPE=$($TS_ECMD_BLKID -c /dev/null -w /dev/null -s "TYPE" $DEV | sed 's/.*TYPE="//g; s/"//g')
	elif [ -x "$TS_ECMD_VOLID" ]; then
		TYPE=$($TS_ECMD_VOLID -t $DEV)
	fi
	echo $TYPE
}

function ts_device_has {
	local TAG="$1"
	local VAL="$2"
	local DEV="$3"
	local vl=""

	case $TAG in
		"TYPE") vl=$(ts_fstype_by_devname $DEV);;
		"LABEL") vl=$(ts_label_by_devname $DEV);;
		"UUID") vl=$(ts_uuid_by_devname $DEV);;
		*) return 1;;
	esac

	if [ "$vl" == "$VAL" ]; then
		return 0
	fi
	return 1
}

function ts_device_has_uuid {
	ts_uuid_by_devname "$1" | egrep -q '^[0-9a-z]{8}-[0-9a-z]{4}-[0-9a-z]{4}-[0-9a-z]{4}-[0-9a-z]{12}$'
	return $?
}

function ts_swapoff {
	local DEV="$1"

	# swapoff doesn't exist in build tree
	if [ ! -x "$TS_CMD_SWAPOFF" ]; then
		ln -sf $TS_CMD_SWAPON $TS_CMD_SWAPOFF
		REMSWAPOFF="true"
	fi
	$TS_CMD_SWAPOFF $DEV 2>&1 >> $TS_OUTPUT
	if [ -n "$REMSWAPOFF" ]; then
		rm -f $TS_CMD_SWAPOFF
	fi
}