91 lines
3.3 KiB
JavaScript
91 lines
3.3 KiB
JavaScript
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/**
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* Usage:
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* node scripts/check-environment
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*
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* Checks that the expected Node and yarn versions are installed.
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*
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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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*
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* This is a slightly simplified, trimmed-down version of
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* [tools/check-environment.js](https://github.com/gkalpak/angular/blob/3896c60be/tools/check-environment.js).
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* We use a different file, because some of the tests and error messages are not relevant for `aio/`.
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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 engines = require(__dirname + '/../package.json').engines;
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var semver;
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// Import `semver`.
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try {
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semver = require('semver');
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} catch (e) {
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reportIssues(['You are missing some npm dependencies. Run: yarn install']);
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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 command.\n' +
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'Check out https://github.com/angular/angular/blob/master/aio/README.md for more info.');
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process.exit(1);
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}
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// Check Node/yarn versions.
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checkEnvironment({
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nodeVersion: engines.node,
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yarnVersion: engines.yarn
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});
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// Helpers
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function checkEnvironment(expected) {
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exec('yarn --version', function(yarnErr, yarnStdout) {
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var actualNodeVersion = process.version;
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var actualYarnVersion = !yarnErr && semver.clean(yarnStdout);
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var issues = [];
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// Check Node version.
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if (!semver.satisfies(actualNodeVersion, expected.nodeVersion)) {
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issues.push(
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'You are running an unsupported Node version. Expected: ' + expected.nodeVersion +
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' Found: ' + actualNodeVersion + '. Use nvm to update your Node version.');
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}
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// Check yarn version.
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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 if you want to work on this ' +
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'project. Installation instructions: https://yarnpkg.com/lang/en/docs/install/');
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} else if (!semver.satisfies(actualYarnVersion, expected.yarnVersion)) {
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issues.push(
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'You are running an unsupported yarn version. Expected: ' + expected.yarnVersion +
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' Found: ' + actualYarnVersion + '. For instructions see:' +
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' https://yarnpkg.com/lang/en/docs/install/');
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}
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reportIssues(issues);
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});
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}
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function reportIssues(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. The 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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