data-provider-temporary/examples/message/node_modules/jest-cli/build/cli/getJest.js

Library that helps with server-to-client synchronization of data

'use strict';











const path = require('path'); /**
                               * Copyright (c) 2014, Facebook, Inc. All rights reserved.
                               *
                               * This source code is licensed under the BSD-style license found in the
                               * LICENSE file in the root directory of this source tree. An additional grant
                               * of patent rights can be found in the PATENTS file in the same directory.
                               *
                               * 
                               */const chalk = require('chalk');const fs = require('graceful-fs');function getJest(packageRoot) {const packageJSONPath = path.join(packageRoot, 'package.json');const binPath = path.join(packageRoot, 'node_modules/jest-cli');if (fs.existsSync(binPath)) {/* $FlowFixMe */
    return require(binPath);
  } else {
    const jest = require('../jest');
    // Check if Jest is specified in `package.json` but not installed.
    if (fs.existsSync(packageJSONPath)) {
      /* $FlowFixMe */
      const packageJSON = require(packageJSONPath);
      const dependencies = packageJSON.dependencies;
      const devDependencies = packageJSON.devDependencies;
      if (
      dependencies && dependencies['jest-cli'] ||
      devDependencies && devDependencies['jest-cli'])
      {
        process.on('exit', () =>
        console.log(
        chalk.red(
        'Please run `npm install` to use the version of Jest intended ' +
        'for this project.')));



      }
    }
    return jest;
  }
}

module.exports = getJest;