metro/checkNodeVersion.js

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/**
* Copyright (c) 2015-present, 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.
*/
'use strict';
var chalk = require('chalk');
var semver = require('semver');
var formatBanner = require('./formatBanner');
function checkNodeVersion() {
if (!semver.satisfies(process.version, '>=2.0.0')) {
var engine = semver.lt(process.version, '1.0.0') ? 'Node' : 'io.js';
var message = 'You are currently running ' + engine + ' ' +
process.version + '.\n' +
'\n' +
'React Native is moving to io.js 2.x. There are several ways to upgrade' +
'to io.js depending on your preference.\n' +
'\n' +
'nvm: nvm install iojs && nvm alias default iojs\n' +
'Homebrew: brew unlink node; brew install iojs && brew ln iojs --force\n' +
'Installer: download the Mac .pkg from https://iojs.org/\n' +
'\n' +
'About io.js: https://iojs.org\n' +
'Follow along at: https://github.com/facebook/react-native/issues/1737';
console.log(formatBanner(message, {
chalkFunction: chalk.green,
marginLeft: 1,
marginRight: 1,
paddingBottom: 1,
}));
}
}
module.exports = checkNodeVersion;