feat(@schematics/angular): use @angular/build package in library generation schematic

The newly introduced `ng-packagr` builder within the `@angular/build` package
is now used when generating a new library with `ng generate library`. This
builder provides the same functionality as the `ng-packagr` builder found
within the `@angular-devkit/build-angular` package but removes the need for
projects to install `@angular-devkit/build-angular` if using the `application`
builder from `@angular/build`.

Author: clydin

packages/schematics/angular/library/index.ts

@@ -53,8 +53,8 @@ function addDependenciesToPackageJson() {
       },
       {
         type: NodeDependencyType.Dev,
-        name: '@angular-devkit/build-angular',
-        version: latestVersions.DevkitBuildAngular,
+        name: '@angular/build',
+        version: latestVersions.AngularBuild,
       },
       {
         type: NodeDependencyType.Dev,
@@ -91,7 +91,7 @@ function addLibToWorkspaceFile(
       prefix: options.prefix,
       targets: {
         build: {
-          builder: Builders.NgPackagr,
+          builder: Builders.BuildNgPackagr,
           defaultConfiguration: 'production',
           options: {
             project: `${projectRoot}/ng-package.json`,

packages/schematics/angular/library/index_spec.ts

@@ -388,9 +388,7 @@ describe('Library Schematic', () => {
     const tree = await schematicRunner.runSchematic('library', defaultOptions, workspaceTree);
 
     const workspace = JSON.parse(tree.readContent('/angular.json'));
-    expect(workspace.projects.foo.architect.build.builder).toBe(
-      '@angular-devkit/build-angular:ng-packagr',
-    );
+    expect(workspace.projects.foo.architect.build.builder).toBe('@angular/build:ng-packagr');
   });
 
   describe('standalone=false', () => {

packages/schematics/angular/utility/latest-versions.ts

@@ -13,6 +13,7 @@ const dependencies = require('./latest-versions/package.json')['dependencies'];
 export const latestVersions: Record<string, string> & {
   Angular: string;
   DevkitBuildAngular: string;
+  AngularBuild: string;
   AngularSSR: string;
 } = {
   ...dependencies,
@@ -21,5 +22,6 @@ export const latestVersions: Record<string, string> & {
   Angular: dependencies['@angular/core'],
 
   DevkitBuildAngular: '^0.0.0-PLACEHOLDER',
+  AngularBuild: '^0.0.0-PLACEHOLDER',
   AngularSSR: '^0.0.0-PLACEHOLDER',
 };

packages/schematics/angular/utility/workspace-models.ts

@@ -28,6 +28,7 @@ export enum Builders {
   Karma = '@angular-devkit/build-angular:karma',
   TsLint = '@angular-devkit/build-angular:tslint',
   NgPackagr = '@angular-devkit/build-angular:ng-packagr',
+  BuildNgPackagr = '@angular/build:ng-packagr',
   DevServer = '@angular-devkit/build-angular:dev-server',
   ExtractI18n = '@angular-devkit/build-angular:extract-i18n',
   Protractor = '@angular-devkit/build-angular:private-protractor',