#!/bin/bash
# -----------------------------------------------------------------------------
# ONOS utility to restore persistent data from a backup archive.
# -----------------------------------------------------------------------------

ONOS_HOME=${ONOS_HOME:-$(cd $(dirname $0)/.. >/dev/null 2>&1 && pwd)}
ONOS_DEFAULT_ARCHIVE=$(dirname $ONOS_HOME)/onos-data.tar.gz
ONOS_KARAF=$ONOS_HOME/apache-karaf-4.2.14

# Fetch the name of the archive or use a default if none is specified
archive=${1:-$ONOS_DEFAULT_ARCHIVE}
archive=$(cd "$(dirname "$1")"; pwd)/$(basename "$1")

# Make sure that the apache karaf data directory exists
[ ! -d $ONOS_KARAF/data ] && echo "ONOS data directory not found" && exit 1

# Make sure that the archive lies outside of $ONOS_HOME for safety
[[ "$archive" =~ ^$ONOS_HOME/.* ]] && \
    echo "Archive cannot be in $ONOS_HOME directory tree" && exit 1

# Make sure that the archive file exists
[ ! -f $archive ] && echo "Archive $archive not found" && exit 1

# Now unroll the archive into the data directory tree
cd $ONOS_KARAF
tar zxf $archive