101 lines
3.3 KiB
JavaScript
101 lines
3.3 KiB
JavaScript
/**
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* @license
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* Copyright Google Inc. All Rights Reserved.
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*
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* Use of this source code is governed by an MIT-style license that can be
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* found in the LICENSE file at https://angular.io/license
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*/
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/* !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
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!!! !!!
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!!! This file is special in that it must be able to execute with wrong Node version !!!
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!!! or even when node_modules are missing. !!!
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!!! !!!
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!!! Do not depend on Node4+ features or presence of npm packages here. !!!
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!!! !!!
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!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! */
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'use strict';
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var exec = require('child_process').exec;
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var checkNodeModules;
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var semver;
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var issues = [];
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// coarse Node version check
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if (+process.version[1] < 5) {
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issues.push('Angular 2 build currently requires Node 5+. Use nvm to update your node version.');
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}
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try {
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semver = require('semver');
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} catch (e) {
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issues.push('Looks like you are missing some npm dependencies. Run: npm install');
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}
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if (issues.length) {
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printWarning(issues);
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console.error(
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'Your environment doesn\'t provide the prerequisite dependencies.\n' +
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'Please fix the issues listed above and then rerun the gulp command.\n' +
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'Check out https://github.com/angular/angular/blob/master/DEVELOPER.md for more info.');
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process.exit(1);
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}
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// wrap in try/catch in case someone requires from within that file
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try {
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checkNodeModules = require('./npm/check-node-modules.js');
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} catch (e) {
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issues.push('Looks like you are missing some npm dependencies. Run: npm install');
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throw e;
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} finally {
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// print warnings and move on, the next steps will likely fail, but hey, we warned them.
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printWarning(issues);
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}
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function checkEnvironment(reqs) {
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exec('npm --version', function(e, stdout) {
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var foundNpmVersion = semver.clean(stdout);
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var foundNodeVersion = process.version;
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var issues = [];
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if (!semver.satisfies(foundNodeVersion, reqs.requiredNodeVersion)) {
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issues.push(
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'You are running unsupported node version. Found: ' + foundNodeVersion + ' Expected: ' +
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reqs.requiredNodeVersion + '. Use nvm to update your node version.');
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}
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if (!semver.satisfies(foundNpmVersion, reqs.requiredNpmVersion)) {
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issues.push(
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'You are running unsupported npm version. Found: ' + foundNpmVersion + ' Expected: ' +
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reqs.requiredNpmVersion + '. Run: npm update -g npm');
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}
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if (!checkNodeModules()) {
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issues.push(
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'Your node_modules directory is stale or out of sync with npm-shrinkwrap.json. Run: npm install');
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}
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printWarning(issues);
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});
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}
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function printWarning(issues) {
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if (!issues.length) return;
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console.warn('');
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console.warn('!'.repeat(110));
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console.warn('!!! Your environment is not in a good shape. Following issues were found:');
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issues.forEach(function(issue) { console.warn('!!! - ' + issue); });
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console.warn('!'.repeat(110));
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console.warn('');
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if (process.env.CI) {
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process.exit(1);
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}
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}
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module.exports = checkEnvironment;
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