feat(@schematics/angular): enable npm engine-strict in new workspaces

packages/schematics/angular/workspace/files/__dot__npmrc.template

@@ -0,0 +1 @@
+engine-strict=true

packages/schematics/angular/workspace/index.ts

@@ -48,6 +48,8 @@ export default function (options: WorkspaceOptions): Rule {
     return mergeWith(
       apply(url('./files'), [
         options.minimal ? filter((path) => !path.endsWith('editorconfig.template')) : noop(),
+        // Unlike other package managers, npm only warns about unsupported `engines` by default.
+        packageManager !== 'npm' ? filter((path) => !path.endsWith('npmrc.template')) : noop(),
         applyTemplates({
           utils: strings,
           ...options,

packages/schematics/angular/workspace/index_spec.ts

@@ -40,6 +40,24 @@ describe('Workspace Schematic', () => {
     );
   });
 
+  it('should enable npm `engine-strict` in .npmrc when using npm', async () => {
+    const tree = await schematicRunner.runSchematic('workspace', {
+      ...defaultOptions,
+      packageManager: 'npm',
+    });
+    expect(tree.readContent('/.npmrc')).toBe('engine-strict=true\n');
+  });
+
+  for (const packageManager of ['yarn', 'pnpm', 'bun', undefined] as const) {
+    it(`should not create an .npmrc when the package manager is ${packageManager}`, async () => {
+      const tree = await schematicRunner.runSchematic('workspace', {
+        ...defaultOptions,
+        packageManager,
+      });
+      expect(tree.exists('/.npmrc')).toBeFalse();
+    });
+  }
+
   it('should set the name in package.json', async () => {
     const tree = await schematicRunner.runSchematic('workspace', defaultOptions);
     const pkg = JSON.parse(tree.readContent('/package.json'));