#!/bin/bash
###########################################################################
-# Copyright 2017 IoT.bzh
+# Copyright 2017-2018 IoT.bzh
#
# author: Sebastien Douheret <sebastien@iot.bzh>
#
. $(dirname "$0")/_env-init.sh
-wget -q --connect-timeout=30 ${SDK_DATABASE} -O $1
+sdksDBFile=${1}
+
+[ "${sdksDBFile}" = "" ] && sdksDBFile=${SDK_ROOT_DIR}/sdks_latest.json
+
+[ -f "${sdksDBFile}" ] && mv "${sdksDBFile}" "${sdksDBFile}.old"
+
+wget -q --connect-timeout=30 "${SDK_DATABASE}" -O "${sdksDBFile}"