91 lines
		
	
	
		
			3.3 KiB
		
	
	
	
		
			JavaScript
		
	
	
	
	
	
			
		
		
	
	
			91 lines
		
	
	
		
			3.3 KiB
		
	
	
	
		
			JavaScript
		
	
	
	
	
	
| /**
 | |
|  * Usage:
 | |
|  *   node scripts/check-environment
 | |
|  *
 | |
|  * Checks that the expected Node and yarn versions are installed.
 | |
|  *
 | |
|  *
 | |
|  * !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
 | |
|  * !!!                                                                                   !!!
 | |
|  * !!!  This file is special in that it must be able to execute with wrong Node version  !!!
 | |
|  * !!!  or even when node_modules are missing.                                           !!!
 | |
|  * !!!                                                                                   !!!
 | |
|  * !!!  Do not depend on Node4+ features or presence of npm packages here.               !!!
 | |
|  * !!!                                                                                   !!!
 | |
|  * !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
 | |
|  *
 | |
|  * This is a slightly simplified, trimmed-down version of
 | |
|  * [tools/check-environment.js](https://github.com/gkalpak/angular/blob/3896c60be/tools/check-environment.js).
 | |
|  * We use a different file, because some of the tests and error messages are not relevant for `aio/`.
 | |
|  */
 | |
| 
 | |
| 
 | |
| 'use strict';
 | |
| 
 | |
| var exec = require('child_process').exec;
 | |
| var engines = require(__dirname + '/../package.json').engines;
 | |
| var semver;
 | |
| 
 | |
| // Import `semver`.
 | |
| try {
 | |
|   semver = require('semver');
 | |
| } catch (e) {
 | |
|   reportIssues(['You are missing some npm dependencies. Run: yarn install']);
 | |
|   console.error(
 | |
|       'Your environment doesn\'t provide the prerequisite dependencies.\n' +
 | |
|       'Please fix the issues listed above and then rerun the command.\n' +
 | |
|       'Check out https://github.com/angular/angular/blob/master/aio/README.md for more info.');
 | |
|   process.exit(1);
 | |
| }
 | |
| 
 | |
| // Check Node/yarn versions.
 | |
| checkEnvironment({
 | |
|   nodeVersion: engines.node,
 | |
|   yarnVersion: engines.yarn
 | |
| });
 | |
| 
 | |
| // Helpers
 | |
| function checkEnvironment(expected) {
 | |
|   exec('yarn --version', function(yarnErr, yarnStdout) {
 | |
|     var actualNodeVersion = process.version;
 | |
|     var actualYarnVersion = !yarnErr && semver.clean(yarnStdout);
 | |
|     var issues = [];
 | |
| 
 | |
|     // Check Node version.
 | |
|     if (!semver.satisfies(actualNodeVersion, expected.nodeVersion)) {
 | |
|       issues.push(
 | |
|           'You are running an unsupported Node version. Expected: ' + expected.nodeVersion +
 | |
|           ' Found: ' + actualNodeVersion + '. Use nvm to update your Node version.');
 | |
|     }
 | |
| 
 | |
|     // Check yarn version.
 | |
|     if (yarnErr) {
 | |
|       issues.push(
 | |
|           'You don\'t have yarn globally installed. This is required if you want to work on this ' +
 | |
|           'project. Installation instructions: https://yarnpkg.com/lang/en/docs/install/');
 | |
|     } else if (!semver.satisfies(actualYarnVersion, expected.yarnVersion)) {
 | |
|       issues.push(
 | |
|           'You are running an unsupported yarn version. Expected: ' + expected.yarnVersion +
 | |
|           ' Found: ' + actualYarnVersion + '. For instructions see:' +
 | |
|           ' https://yarnpkg.com/lang/en/docs/install/');
 | |
|     }
 | |
| 
 | |
|     reportIssues(issues);
 | |
|   });
 | |
| }
 | |
| 
 | |
| function reportIssues(issues) {
 | |
|   if (!issues.length) return;
 | |
| 
 | |
|   console.warn('');
 | |
|   console.warn('!'.repeat(110));
 | |
|   console.warn('!!!  Your environment is not in a good shape. The following issues were found:');
 | |
|   issues.forEach(function(issue) { console.warn('!!!   - ' + issue); });
 | |
|   console.warn('!'.repeat(110));
 | |
|   console.warn('');
 | |
| 
 | |
|   if (process.env.CI) {
 | |
|     process.exit(1);
 | |
|   }
 | |
| }
 |