cloudstack/scripts/storage/qcow2/listvmdisksize.sh

88 lines
2.0 KiB
Bash
Executable File

#!/usr/bin/env bash
# Licensed to the Apache Software Foundation (ASF) under one
# or more contributor license agreements. See the NOTICE file
# distributed with this work for additional information
# regarding copyright ownership. The ASF licenses this file
# to you under the Apache License, Version 2.0 (the
# "License"); you may not use this file except in compliance
# with the License. You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing,
# software distributed under the License is distributed on an
# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
# KIND, either express or implied. See the License for the
# specific language governing permissions and limitations
# under the License.
# $Id: listvmdisksize.sh 9132 2010-06-04 20:17:43Z manuel $ $HeadURL: svn://svn.lab.vmops.com/repos/vmdev/java/scripts/storage/qcow2/listvmdisksize.sh $
# listvmdisksize.sh -- list disk sizes of a VM
usage() {
printf "Usage: %s: -d <disk-fs> [-t | -a ] \n" $(basename $0) >&2
}
# Evaluate a floating point number expression.
function float_eval()
{
local stat=0
local result=0.0
if [[ $# -gt 0 ]]; then
result=$(echo "scale=0; $*" | bc 2>/dev/null)
stat=$?
if [[ $stat -eq 0 && -z "$result" ]]; then stat=1; fi
fi
echo $result
return $stat
}
#set -x
aflag=
tflag=
aflag=
diskfs=
while getopts 'd:ta' OPTION
do
case $OPTION in
d) dflag=1
diskfs="$OPTARG"
;;
t) tflag=1
;;
a) aflag=1
;;
?) usage
exit 2
;;
esac
done
if [ "$dflag" != "1" -a "$tflag$aflag" != "1" ]
then
usage
exit 2
fi
if [ "$tflag" == 1 ]
then
# Find the virtual size of the disk image
size_in_bytes=$(qemu-img info /$diskfs | grep "virtual size" | awk '{print $4}')
# Strip off the leading '('
size_in_bytes=${size_in_bytes:1}
else
# Find the actual size of the disk image
size_in_bytes=$(ls -l /$diskfs | awk '{print $5}')
fi
printf "$size_in_bytes\n"
exit 0