#!/bin/bash

# -------------------------------------------------------------------------- #
# Copyright 2002-2012, OpenNebula Project Leads (OpenNebula.org)             #
#                                                                            #
# Licensed 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.                                             #
#--------------------------------------------------------------------------- #

# mvds host:remote_system_ds/disk.i fe:SOURCE
#   - fe is the front-end hostname
#   - SOURCE is the path of the disk image in the form DS_BASE_PATH/disk
#   - host is the target host to deploy the VM
#   - remote_system_ds is the path for the system datastore in the host

SRC=$1
DST=$2

if [ -z "${ONE_LOCATION}" ]; then
    TMCOMMON=/var/lib/one/remotes/tm/tm_common.sh
else
    TMCOMMON=$ONE_LOCATION/var/remotes/tm/tm_common.sh
fi

. $TMCOMMON

set_ds_location

#-------------------------------------------------------------------------------
# Set dst path and dir
#-------------------------------------------------------------------------------
SRC_PATH=`arg_path $SRC`
DST_PATH=`arg_path $DST`

DST_PATH="$RMT_DS_DIR/${DST_PATH##"$DS_DIR/"}"

SRC_HOST=`arg_host $SRC`

#-------------------------------------------------------------------------------
# Move the image back to the datastore
#-------------------------------------------------------------------------------
MVSCRIPT=$(cat <<EOF
umask 0007
SRC_READLN=\$($READLINK -f $SRC_PATH)
DST_READLN=\$($READLINK -f $DST_PATH)

if [ \( -L $SRC_PATH \) -a \( "\$SRC_READLN" = "\$DST_READLN" \) ] ; then
    echo "Not moving files to image repo, they are the same"
else
    mv -f $SRC_PATH $DST_PATH
fi
EOF
)

log "Moving $SRC_PATH to datastore as $DST_PATH"

ssh_exec_and_log $SRC_HOST "$MVSCRIPT" "Could not move image $DST_PATH"

exit 0
