#!/usr/bin/env bash

if [ "$1" = '--help' ] ; then
  echo "Usage: $0 <kbname>"
  exit
fi

if [ "$1" = '--version' ] ; then
  4s-backend --version | sed 's/4s-backend/'`basename $0`'/'
  exit
fi

if (($# == 1)) ; then
 (find /var/lib/4store/$1/ -newer /var/lib/4store/$1/backup || echo "always") |
      grep "" > /dev/null || exit 2;
 touch /var/lib/4store/$1/backup
 tar -c -P -z -f - /var/lib/4store/$1/
else
 echo "Usage: $0 <kbname>" > /dev/stderr
 exit 1;
fi
