118 lines
4.2 KiB
JavaScript
118 lines
4.2 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 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: `yarn 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/docs/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: `yarn 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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if (require.main === module) {
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// we are running this script directly so just run checkEnvironment against the main angular
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// package.json
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var engines = require(__dirname + '/../package.json').engines;
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checkEnvironment({
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requiredNodeVersion: engines.node,
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requiredNpmVersion: engines.npm,
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requiredYarnVersion: engines.yarn
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});
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}
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function checkEnvironment(reqs) {
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exec('yarn --version', function(yarnErr, yarnStdout) {
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var foundNodeVersion = process.version;
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var foundYarnVersion = !yarnErr && semver.clean(yarnStdout);
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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 (yarnErr) {
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issues.push(
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'You don\'t have yarn globally installed. This is required because we use yarn to ' +
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'ensure that we all use the exact same npm dependencies. Installation instructions: ' +
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'https://yarnpkg.com/lang/en/docs/install/');
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} else if (!semver.satisfies(foundYarnVersion, reqs.requiredYarnVersion)) {
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issues.push(
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'You are running an unsupported yarn version. Found: ' + foundYarnVersion +
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' Expected: ' + reqs.requiredYarnVersion + '. This is required because we use yarn to ' +
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'ensure that we all use the exact same npm dependencies. Installation instructions: ' +
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'https://yarnpkg.com/lang/en/docs/install/');
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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 yarn.lock. Run: yarn 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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