build(aio): do not fail if check-env for the main angular project fails

Fixes #17434
2017-06-14 18:34:13 +03:00
parent 3515860b15
commit ce00fa3627
3 changed files with 100 additions and 16 deletions
--- a/aio/scripts/check-environment.js
+++ b/aio/scripts/check-environment.js
@ -0,0 +1,90 @@
+/**
+ * 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);
+  }
+}