Add base e2e for Angular

.github/workflows/e2e-angular-workflow.yml

@@ -0,0 +1,40 @@
+on:
+  schedule:
+  - cron: '0 */4 * * *'
+  push:
+    branches:
+    - master
+  pull_request:
+    paths:
+    - .github/workflows/e2e-angular-workflow.yml
+    - scripts/e2e-setup-ci.sh
+
+name: 'E2E Angular'
+jobs:
+  chore:
+    name: 'Validating Angular'
+    runs-on: ubuntu-latest
+
+    steps:
+    - uses: actions/checkout@master
+
+    - name: 'Use Node.js 10.x'
+      uses: actions/setup-node@master
+      with:
+        version: 10.x
+
+    - name: 'Build the standard bundle'
+      run: |
+        node ./scripts/run-yarn.js build:cli
+
+    - name: 'Running the integration test'
+      run: |
+        source scripts/e2e-setup-ci.sh
+
+        yarn dlx -p @angular/cli@next ng new berry-angular --interactive=false
+        cd berry-angular
+
+        yarn add @yarnpkg/pnpify @angular-devkit/core@next @babel/preset-env @babel/core -D
+
+        yarn unplug @angular/platform-browser @angular/core @angular/common
+        yarn pnpify ng build --aot

packages/plugin-essentials/sources/commands/install.ts

@@ -36,6 +36,9 @@ export default class YarnCommand extends BaseCommand {
   @Command.String(`--cache-folder`)
   cacheFolder?: string;
 
+  @Command.Boolean(`--silent`, {hidden: true})
+  silent?: boolean = false;
+
   static usage = Command.Usage({
     description: `install the project dependencies`,
     details: `