build: upgrade yarn to 1.3.2

Fixes #20566

aio/package.json

@@ -19,6 +19,7 @@
     "test": "yarn check-env && ng test",
     "pree2e": "yarn check-env && yarn ~~update-webdriver",
     "e2e": "ng e2e --no-webdriver-update",
+    "preinstall": "node ../tools/yarn/check-yarn.js",
     "presetup": "yarn install --frozen-lockfile && yarn ~~check-env && yarn boilerplate:remove",
     "setup": "yarn aio-use-npm && yarn example-use-npm",
     "postsetup": "yarn boilerplate:add && yarn build-ie-polyfills && yarn generate-plunkers && yarn generate-zips && yarn docs",
@@ -60,7 +61,7 @@
   },
   "engines": {
     "node": ">=8.9.1 <9.0.0",
-    "yarn": ">=1.0.2 <2.0.0"
+    "yarn": ">=1.3.2 <2.0.0"
   },
   "private": true,
   "dependencies": {

aio/tools/examples/shared/package.json

@@ -7,8 +7,13 @@
     "http-server": "http-server",
     "protractor": "protractor",
     "webdriver:update": "webdriver-manager update --standalone false --gecko false $CHROMEDRIVER_VERSION_ARG",
+    "preinstall": "node ../../../../tools/yarn/check-yarn.js",
     "postinstall": "yarn webdriver:update"
   },
+  "engines": {
+    "node": ">=8.9.1 <9.0.0",
+    "yarn": ">=1.3.2 <2.0.0"
+  },
   "keywords": [],
   "author": "",
   "license": "MIT",

package.json

@@ -9,7 +9,7 @@
   "license": "MIT",
   "engines": {
     "node": ">=8.9.1 <9.0.0",
-    "yarn": ">=1.0.2 <2.0.0"
+    "yarn": ">=1.3.2 <2.0.0"
   },
   "repository": {
     "type": "git",
@@ -20,7 +20,7 @@
     "skylint": "find . -type f -name \"*.bzl\" ! -path \"*/node_modules/*\" ! -path \"./dist/*\" | xargs $(bazel info bazel-bin)/external/io_bazel/src/tools/skylark/java/com/google/devtools/skylark/skylint/Skylint",
     "prebuildifier": "bazel build --noshow_progress @com_github_bazelbuild_buildtools//buildifier",
     "buildifier": "find . -type f \\( -name BUILD -or -name BUILD.bazel \\) ! -path \"*/node_modules/*\" | xargs $(bazel info bazel-bin)/external/com_github_bazelbuild_buildtools/buildifier/buildifier",
-    "preinstall": "node -e \"if(process.env.npm_execpath.indexOf('yarn') === -1) throw new Error('Please use Yarn instead of NPM to install dependencies. See: https://yarnpkg.com/lang/en/docs/install/')\"",
+    "preinstall": "node tools/yarn/check-yarn.js",
     "postinstall": "yarn update-webdriver",
     "update-webdriver": "webdriver-manager update --gecko false $CHROMEDRIVER_VERSION_ARG",
     "check-env": "gulp check-env"

scripts/ci/env.sh

@@ -35,7 +35,7 @@ fi
 #######################
 
 setEnvVar NODE_VERSION 8.9.1
-setEnvVar YARN_VERSION 1.0.2
+setEnvVar YARN_VERSION 1.3.2
 # Pin to a Chromium version that does not cause the aio e2e tests to flake. (See https://github.com/angular/angular/pull/20403.)
 # Revision 494239 (which was part of Chrome 62.0.3186.0) is the last version that does not cause flakes. (Latest revision checked: 508578)
 setEnvVar CHROMIUM_VERSION 494239 # Chrome 62 linux stable, see https://www.chromium.org/developers/calendar

tools/yarn/check-yarn.js

@@ -0,0 +1,14 @@
+/**
+ * @license
+ * Copyright Google Inc. All Rights Reserved.
+ *
+ * Use of this source code is governed by an MIT-style license that can be
+ * found in the LICENSE file at https://angular.io/license
+ */
+
+'use strict';
+
+if (process.env.npm_execpath.indexOf('yarn') === -1) {
+  throw new Error(
+      'Please use Yarn instead of NPM to install dependencies. See: https://yarnpkg.com/lang/en/docs/install/');
+}