#!/bin/bash -e

HOST_NAME=$1
START=$2
if [ -z "$HOST_NAME" ]; then
    echo "usage: $0 host name"
    exit 1
fi

. config.sh

MACHINES=""
for image in *; do
    if [ -d "$image" ]; then
        for os in $image/configurations/*; do
            if [ -d "$os" ]; then
                machine="$(basename $os)"
                if [ -d "/var/lib/risotto/srv/$machine" ]; then
                    MACHINES="$MACHINES$machine "
                fi
            fi
        done
    fi
done
cd /var/lib/risotto/srv/
mkdir -p "$BACKUP_DIR"
for machine in $MACHINES; do
    machinectl stop $machine || true
    while true; do
        machinectl status "$machine" > /dev/null 2>&1 || break
        sleep 1
    done
    BACKUP_FILE="$BACKUP_DIR/backup_$machine.tar.bz2"
    rm -f "$BACKUP_FILE"
    tar -cvjf $BACKUP_FILE $machine
done

if [ -z "$START" ]; then
    machinectl start $MACHINES
fi

exit 0