feat(prerender): config preredner in ng add (#1365)

* feat(prerender): config preredner in ng add

* fix: use production for browser/server targets

when setting up the prerender target

* update test for using production mode

for browser and server targets in prerender.

* use empty routes list by default

Author: wagnermaciel

modules/common/schematics/add/index.spec.ts

@@ -37,6 +37,8 @@ describe('Add Schematic Rule', () => {
     expect(architect.server.options.main).toBe('projects/test-app/server.ts');
     expect(architect['serve-ssr'].options.serverTarget).toBe('test-app:server');
     expect(architect['serve-ssr'].options.browserTarget).toBe('test-app:build');
+    expect(architect['prerender'].options.serverTarget).toBe('test-app:server:production');
+    expect(architect['prerender'].options.browserTarget).toBe('test-app:build:production');
 
     const productionConfig = architect.server.configurations.production;
     expect(productionConfig.fileReplacements).toBeDefined();
@@ -55,6 +57,7 @@ describe('Add Schematic Rule', () => {
     expect(scripts['build:ssr']).toBe('ng build --prod && ng run test-app:server:production');
     expect(scripts['serve:ssr']).toBe('node dist/test-app/server/main.js');
     expect(scripts['dev:ssr']).toBe('ng run test-app:serve-ssr');
+    expect(scripts['prerender']).toBe('ng run test-app:prerender');
   });
 
   it('should add devDependency: @nguniversal/builders', async () => {

modules/common/schematics/add/index.ts

@@ -24,6 +24,7 @@ import {addPackageJsonDependency, NodeDependencyType} from '@schematics/angular/
 import {stripTsExtension, getOutputPath, getProject} from '../utils';
 
 const SERVE_SSR_TARGET_NAME = 'serve-ssr';
+const PRERENDER_TARGET_NAME = 'prerender';
 
 export interface AddUniversalOptions extends UniversalOptions {
   serverFileName?: string;
@@ -63,6 +64,7 @@ function addScriptsRule(options: AddUniversalOptions): Rule {
       'dev:ssr': `ng run ${options.clientProject}:${SERVE_SSR_TARGET_NAME}`,
       'serve:ssr': `node ${serverDist}/main.js`,
       'build:ssr': `ng build --prod && ng run ${options.clientProject}:server:production`,
+      'prerender': `ng run ${options.clientProject}:${PRERENDER_TARGET_NAME}`,
     };
 
     host.overwrite(pkgPath, JSON.stringify(pkg, null, 2));
@@ -103,6 +105,21 @@ function updateWorkspaceConfigRule(options: AddUniversalOptions): Rule {
           },
         },
       });
+
+      const prerenderTarget = project.targets.get(PRERENDER_TARGET_NAME);
+      if (prerenderTarget) {
+        return;
+      }
+
+      project.targets.add({
+        name: PRERENDER_TARGET_NAME,
+        builder: '@nguniversal/builders:prerender',
+        options: {
+          browserTarget: `${projectName}:build:production`,
+          serverTarget: `${projectName}:server:production`,
+          routes: []
+        }
+      });
     });
   };
 }