fix(angular): generate @nx/angular in devDependencies and move to dependencies when using runtime helpers (#27405)

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## Current Behavior
<!-- This is the behavior we have today -->

New workspaces are generated with `@nx/angular` as a production
dependency even though the generated code does not use any runtime
helper from it.

## Expected Behavior
<!-- This is the behavior we should expect with the changes in this PR
-->

New workspaces should be generated with `@nx/angular` as a development
dependency. When generating a new MF host or dynamic MF application
(host or remote), the `@nx/angular` package should be moved to the
production dependencies because the generated code uses some runtime
helpers from it.

## Related Issue(s)
<!-- Please link the issue being fixed so it gets closed when this is
merged. -->

Fixes #27333

packages/angular/src/generators/setup-mf/lib/index.ts

@@ -5,6 +5,7 @@ export * from './change-build-target';
 export * from './fix-bootstrap';
 export * from './generate-config';
 export * from './get-remotes-with-ports';
+export * from './move-angular-plugin-to-dependencies';
 export * from './normalize-options';
 export * from './update-tsconfig';
 export * from './setup-host-if-dynamic';

packages/angular/src/generators/setup-mf/lib/move-angular-plugin-to-dependencies.ts

@@ -0,0 +1,15 @@
+import { readJson, writeJson, type Tree } from '@nx/devkit';
+
+export function moveAngularPluginToDependencies(tree: Tree): void {
+  const packageJson = readJson(tree, 'package.json');
+  if (packageJson.dependencies?.['@nx/angular']) {
+    return;
+  }
+
+  packageJson.dependencies ??= {};
+  packageJson.dependencies['@nx/angular'] =
+    packageJson.devDependencies['@nx/angular'];
+  delete packageJson.devDependencies['@nx/angular'];
+
+  writeJson(tree, 'package.json', packageJson);
+}

packages/angular/src/generators/setup-mf/setup-mf.spec.ts

@@ -3,13 +3,14 @@ import 'nx/src/internal-testing-utils/mock-project-graph';
 import {
   readJson,
   readProjectConfiguration,
-  Tree,
   updateJson,
+  type Tree,
 } from '@nx/devkit';
 import { createTreeWithEmptyWorkspace } from '@nx/devkit/testing';
+import { E2eTestRunner } from '../../utils/test-runners';
+import { nxVersion } from '../../utils/versions';
 import { generateTestApplication } from '../utils/testing';
 import { setupMf } from './setup-mf';
-import { E2eTestRunner } from '../../utils/test-runners';
 
 describe('Init MF', () => {
   let tree: Tree;
@@ -760,6 +761,42 @@ describe('Init MF', () => {
     `);
   });
 
+  it('should move the @nx/angular plugin to dependencies when --mfType=host', async () => {
+    updateJson(tree, 'package.json', (json) => ({
+      ...json,
+      devDependencies: {
+        ...json.devDependencies,
+        '@nx/angular': nxVersion,
+      },
+    }));
+
+    await setupMf(tree, { appName: 'app1', mfType: 'host' });
+
+    const { devDependencies, dependencies } = readJson(tree, 'package.json');
+    expect(devDependencies['@nx/angular']).toBeUndefined();
+    expect(dependencies['@nx/angular']).toBe(nxVersion);
+  });
+
+  it('should move the @nx/angular plugin to dependencies when --federationType=dynamic', async () => {
+    updateJson(tree, 'package.json', (json) => ({
+      ...json,
+      devDependencies: {
+        ...json.devDependencies,
+        '@nx/angular': nxVersion,
+      },
+    }));
+
+    await setupMf(tree, {
+      appName: 'app1',
+      mfType: 'remote',
+      federationType: 'dynamic',
+    });
+
+    const { devDependencies, dependencies } = readJson(tree, 'package.json');
+    expect(devDependencies['@nx/angular']).toBeUndefined();
+    expect(dependencies['@nx/angular']).toBe(nxVersion);
+  });
+
   describe('angular compat support', () => {
     beforeEach(() => {
       updateJson(tree, 'package.json', (json) => ({

packages/angular/src/generators/setup-mf/setup-mf.ts

@@ -1,11 +1,13 @@
-import type { Tree } from '@nx/devkit';
 import {
   addDependenciesToPackageJson,
   formatFiles,
   readProjectConfiguration,
+  type Tree,
 } from '@nx/devkit';
-import type { Schema } from './schema';
-
+import {
+  moduleFederationEnhancedVersion,
+  nxVersion,
+} from '../../utils/versions';
 import {
   addCypressOnErrorWorkaround,
   addRemoteEntry,
@@ -14,18 +16,16 @@ import {
   fixBootstrap,
   generateWebpackConfig,
   getRemotesWithPorts,
+  moveAngularPluginToDependencies,
   normalizeOptions,
   removeDeadCodeFromRemote,
   setupHostIfDynamic,
-  setupTspathForRemote,
   setupServeTarget,
+  setupTspathForRemote,
   updateHostAppRoutes,
   updateTsConfig,
 } from './lib';
-import {
-  moduleFederationEnhancedVersion,
-  nxVersion,
-} from '../../utils/versions';
+import type { Schema } from './schema';
 
 export async function setupMf(tree: Tree, rawOptions: Schema) {
   const options = normalizeOptions(tree, rawOptions);
@@ -88,6 +88,15 @@ export async function setupMf(tree: Tree, rawOptions: Schema) {
 
   fixBootstrap(tree, projectConfig.root, options);
 
+  if (options.mfType === 'host' || options.federationType === 'dynamic') {
+    /**
+     * Host applications and dynamic federation applications generate runtime
+     * code that depends on the @nx/angular plugin. Ensure that the plugin is
+     * in the production dependencies.
+     */
+    moveAngularPluginToDependencies(tree);
+  }
+
   if (!options.skipE2E) {
     addCypressOnErrorWorkaround(tree, options);
   }

packages/workspace/src/generators/new/generate-preset.ts

@@ -103,9 +103,10 @@ function getPresetDependencies({
     case Preset.AngularMonorepo:
     case Preset.AngularStandalone:
       return {
-        dependencies: { '@nx/angular': nxVersion },
+        dependencies: {},
         dev: {
           '@angular-devkit/core': angularCliVersion,
+          '@nx/angular': nxVersion,
           typescript: typescriptVersion,
         },
       };

packages/workspace/src/generators/new/new.spec.ts

@@ -168,9 +168,9 @@ describe('new', () => {
         tree,
         'my-workspace/package.json'
       );
-      expect(dependencies).toStrictEqual({ '@nx/angular': nxVersion });
       expect(devDependencies).toStrictEqual({
         '@angular-devkit/core': angularCliVersion,
+        '@nx/angular': nxVersion,
         '@nx/workspace': nxVersion,
         nx: nxVersion,
         typescript: typescriptVersion,