#!/usr/bin/env bash

#
# Licensed to the Apache Software Foundation (ASF) under one or more
# contributor license agreements.  See the NOTICE file distributed with
# this work for additional information regarding copyright ownership.
# The ASF licenses this file to You 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.
#
REQUIRED_VERSION=2
LOCKFILE_VERSION=$(sed -n 's/[ \t]*"lockfileVersion"\: \([0-9]*\),/\1/p' "$1")

if [[ $LOCKFILE_VERSION != "$REQUIRED_VERSION" ]]; then
    echo >&2 "Incorrect npm lock file version: $LOCKFILE_VERSION (Version $REQUIRED_VERSION required)"
    exit 1
else
    echo "Correct npm lock file version: $LOCKFILE_VERSION"
    exit 0
fi