feat(build): record angular version in the dom (#13164)

modules/@angular/common/index.ts

@@ -14,6 +14,10 @@
 export * from './src/location';
 export {NgLocalization} from './src/localization';
 export {CommonModule} from './src/common_module';
-
 export {NgClass, NgFor, NgIf, NgPlural, NgPluralCase, NgStyle, NgSwitch, NgSwitchCase, NgSwitchDefault, NgTemplateOutlet} from './src/directives/index';
-export {AsyncPipe, DatePipe, I18nPluralPipe, I18nSelectPipe, JsonPipe, LowerCasePipe, CurrencyPipe, DecimalPipe, PercentPipe, SlicePipe, UpperCasePipe} from './src/pipes/index';
+export {AsyncPipe, DatePipe, I18nPluralPipe, I18nSelectPipe, JsonPipe, LowerCasePipe, CurrencyPipe, DecimalPipe, PercentPipe, SlicePipe, UpperCasePipe} from './src/pipes/index';
+import {Version} from '@angular/core';
+/**
+ * @stable
+ */
+export const VERSION = new Version('0.0.0-PLACEHOLDER');

modules/@angular/compiler-cli/index.ts

@@ -5,10 +5,14 @@
  * 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
  */
-
 export {AotCompilerHost, AotCompilerHost as StaticReflectorHost, StaticReflector, StaticSymbol} from '@angular/compiler';
 export {CodeGenerator} from './src/codegen';
 export {CompilerHost, CompilerHostContext, NodeCompilerHostContext} from './src/compiler_host';
 export {Extractor} from './src/extractor';
-
 export * from '@angular/tsc-wrapped';
+
+import {Version} from '@angular/core';
+/**
+ * @stable
+ */
+export const VERSION = new Version('0.0.0-PLACEHOLDER');

modules/@angular/compiler/index.ts

@@ -21,6 +21,11 @@
  *   </p>
  * </div>
  */
+import {Version} from '@angular/core';
+/**
+ * @stable
+ */
+export const VERSION = new Version('0.0.0-PLACEHOLDER');
 export * from './src/template_parser/template_ast';
 export {TEMPLATE_TRANSFORMS} from './src/template_parser/template_parser';
 export {CompilerConfig, RenderTypes} from './src/config';
@@ -58,5 +63,4 @@ export * from './src/style_compiler';
 export * from './src/template_parser/template_parser';
 export {ViewCompiler} from './src/view_compiler/view_compiler';
 export {AnimationParser} from './src/animation/animation_parser';
-
 // This file only reexports content of the `src` folder. Keep it that way.

modules/@angular/core/index.ts

@@ -12,5 +12,10 @@
  * Entry point for all public APIs of the core package.
  */
 export * from './src/core';
+import {Version} from './src/core';
+/**
+ * @stable
+ */
+export const VERSION = new Version('0.0.0-PLACEHOLDER');
 
 // This file only reexports content of the `src` folder. Keep it that way.

modules/@angular/core/src/core.ts

@@ -12,6 +12,7 @@
  * Entry point from which you should import all public core APIs.
  */
 export * from './metadata';
+export * from './version';
 export * from './util';
 export * from './di';
 export {createPlatform, assertPlatform, destroyPlatform, getPlatform, PlatformRef, ApplicationRef, enableProdMode, isDevMode, createPlatformFactory, NgProbeToken} from './application_ref';
@@ -34,4 +35,4 @@ export * from './core_private_export';
 export * from './animation/metadata';
 export {AnimationTransitionEvent} from './animation/animation_transition_event';
 export {AnimationPlayer} from './animation/animation_player';
-export {Sanitizer, SecurityContext} from './security';
+export {Sanitizer, SecurityContext} from './security';

modules/@angular/core/src/version.ts

@@ -0,0 +1,22 @@
+/**
+ * @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
+ */
+
+/**
+ * @whatItDoes Represents the version of Angular
+ *
+ * @stable
+ */
+export class Version {
+  constructor(public full: string) {}
+
+  get major(): string { return this.full.split('.')[0]; }
+
+  get minor(): string { return this.full.split('.')[1]; }
+
+  get patch(): string { return this.full.split('.')[2]; }
+}

modules/@angular/forms/index.ts

@@ -11,6 +11,11 @@
  * @description
  * Entry point for all public APIs of the forms package.
  */
+import {Version} from '@angular/core';
+/**
+ * @stable
+ */
+export const VERSION = new Version('0.0.0-PLACEHOLDER');
 export * from './src/forms';
 
 // This file only reexports content of the `src` folder. Keep it that way.

modules/@angular/http/index.ts

@@ -11,6 +11,11 @@
  * @description
  * Entry point for all public APIs of the http package.
  */
+import {Version} from '@angular/core';
+/**
+ * @stable
+ */
+export const VERSION = new Version('0.0.0-PLACEHOLDER');
 export * from './src/index';
 
 // This file only reexports content of the `src` folder. Keep it that way.

modules/@angular/language-service/index.ts

@@ -11,10 +11,15 @@
  * @description
  * Entry point for all public APIs of the language service package.
  */
+import {Version} from '@angular/core';
 import * as ts from 'typescript';
 
 import {LanguageServicePlugin} from './src/ts_plugin';
 
+/**
+ * @stable
+ */
+export const VERSION = new Version('0.0.0-PLACEHOLDER');
 export {createLanguageService} from './src/language_service';
 export {Completion, Completions, Declaration, Declarations, Definition, Diagnostic, Diagnostics, Hover, HoverTextSection, LanguageService, LanguageServiceHost, Location, Span, TemplateSource, TemplateSources} from './src/types';
 export {TypeScriptServiceHost, createLanguageServiceFromTypescript} from './src/typescript_host';

modules/@angular/platform-browser-dynamic/index.ts

@@ -11,6 +11,11 @@
  * @description
  * Entry point for all public APIs of the platform-browser-dynamic package.
  */
+import {Version} from '@angular/core';
+/**
+ * @stable
+ */
+export const VERSION = new Version('0.0.0-PLACEHOLDER');
 export * from './src/platform-browser-dynamic';
 
 // This file only reexports content of the `src` folder. Keep it that way.

modules/@angular/platform-browser/index.ts

@@ -11,6 +11,10 @@
  * @description
  * Entry point for all public APIs of the platform-browser package.
  */
+import {Version} from '@angular/core';
+/**
+ * @stable
+ */
+export const VERSION = new Version('0.0.0-PLACEHOLDER');
 export * from './src/platform-browser';
-
 // This file only reexports content of the `src` folder. Keep it that way.

modules/@angular/platform-browser/src/browser.ts

@@ -7,7 +7,7 @@
  */
 
 import {CommonModule, PlatformLocation} from '@angular/common';
-import {ApplicationModule, ErrorHandler, NgModule, Optional, PLATFORM_INITIALIZER, PlatformRef, Provider, RootRenderer, Sanitizer, SkipSelf, Testability, createPlatformFactory, platformCore} from '@angular/core';
+import {ApplicationModule, ErrorHandler, NgModule, Optional, PLATFORM_INITIALIZER, PlatformRef, Provider, RootRenderer, Sanitizer, SkipSelf, Testability, VERSION, createPlatformFactory, platformCore} from '@angular/core';
 
 import {AnimationDriver} from '../src/dom/animation_driver';
 import {WebAnimationsDriver} from '../src/dom/web_animations_driver';
@@ -29,6 +29,7 @@ import {DomSanitizer, DomSanitizerImpl} from './security/dom_sanitization_servic
 
 export const INTERNAL_BROWSER_PLATFORM_PROVIDERS: Provider[] = [
   {provide: PLATFORM_INITIALIZER, useValue: initDomAdapter, multi: true},
+  {provide: PLATFORM_INITIALIZER, useValue: recordAngularVersion, multi: true},
   {provide: PlatformLocation, useClass: BrowserPlatformLocation}
 ];
 
@@ -54,6 +55,14 @@ export function initDomAdapter() {
   BrowserGetTestability.init();
 }
 
+export function recordAngularVersion(): void {
+  const domAdapter = getDOM();
+  const body = domAdapter.getElementsByTagName(domAdapter.defaultDoc(), 'body');
+  if (body.length > 0) {
+    domAdapter.setAttribute(body[0], 'ng-version', VERSION.full);
+  }
+}
+
 export function errorHandler(): ErrorHandler {
   return new ErrorHandler();
 }

modules/@angular/platform-browser/src/platform-browser.ts

@@ -16,5 +16,4 @@ export {DOCUMENT} from './dom/dom_tokens';
 export {EVENT_MANAGER_PLUGINS, EventManager} from './dom/events/event_manager';
 export {HAMMER_GESTURE_CONFIG, HammerGestureConfig} from './dom/events/hammer_gestures';
 export {DomSanitizer, SafeHtml, SafeResourceUrl, SafeScript, SafeStyle, SafeUrl} from './security/dom_sanitization_service';
-
-export * from './private_export';
+export * from './private_export';

modules/@angular/platform-server/index.ts

@@ -11,6 +11,12 @@
  * @description
  * Entry point for all public APIs of the platform-server package.
  */
+import {Version} from '@angular/core';
+
+/**
+ * @stable
+ */
+export const VERSION = new Version('0.0.0-PLACEHOLDER');
 export * from './src/platform-server';
 
 // This file only reexports content of the `src` folder. Keep it that way.

modules/@angular/platform-webworker-dynamic/index.ts

@@ -11,6 +11,11 @@
  * @description
  * Entry point for all public APIs of the platform-browser-dynamic package.
  */
+import {Version} from '@angular/core';
+/**
+ * @stable
+ */
+export const VERSION = new Version('0.0.0-PLACEHOLDER');
 export * from './src/platform-webworker-dynamic';
 
 // This file only reexports content of the `src` folder. Keep it that way.

modules/@angular/platform-webworker/index.ts

@@ -11,6 +11,11 @@
  * @description
  * Entry point for all public APIs of the platform-webworker package.
  */
+import {Version} from '@angular/core';
+/**
+ * @stable
+ */
+export const VERSION = new Version('0.0.0-PLACEHOLDER');
 export * from './src/platform-webworker';
 
 // This file only reexports content of the `src` folder. Keep it that way.

modules/@angular/router/index.ts

@@ -11,6 +11,11 @@
  * @description
  * Entry point for all public APIs of the router package.
  */
+import {Version} from '@angular/core';
+/**
+ * @stable
+ */
+export const VERSION = new Version('0.0.0-ROUTERPLACEHOLDER');
 export * from './src/index';
 
 // This file only reexports content of the `src` folder. Keep it that way.

modules/@angular/upgrade/index.ts

@@ -11,5 +11,10 @@
  * @description
  * Entry point for all public APIs of the upgrade package.
  */
+import {Version} from '@angular/core';
+/**
+ * @stable
+ */
+export const VERSION = new Version('0.0.0-PLACEHOLDER');
 export * from './src/upgrade';
 // This file only reexports content of the `src` folder. Keep it that way.