text: /*
   * Licensed to Elasticsearch B.V. under one or more contributor
   * license agreements. See the NOTICE file distributed with
   * this work for additional information regarding copyright
   * ownership. Elasticsearch B.V. 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.
   */
  
  var pkg = require('../../package.json');
  
  // Note: This is written in ES5 so we can run this before anything else
  // and gives support for older NodeJS versions
  var currentVersion = (process && process.version) || null;
  var rawRequiredVersion = (pkg && pkg.engines && pkg.engines.node) || null;
  var requiredVersion = rawRequiredVersion ? 'v' + rawRequiredVersion : rawRequiredVersion;
  var isVersionValid = !!currentVersion && !!requiredVersion && (currentVersion === requiredVersion);
  
  // Validates current the NodeJS version compatibility when Kibana starts.
  if (!isVersionValid) {
    var errorMessage = 'Kibana does not support the current Node.js version ' + currentVersion
      + '. Please use Node.js ' + requiredVersion + '.';
  
    // Actions to apply when validation fails: error report + exit.
    console.error(errorMessage);
    process.exit(1);
  }
  