feat(angular): add poll option to ng-packagr executors (#28909)

Add `poll` option to the ng-packagr executors. This change was made
upstream for Angular v18, but it was missed on the Nx executors.

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## Current Behavior
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## Expected Behavior
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## Related Issue(s)
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Fixes #

docs/generated/packages/angular/executors/ng-packagr-lite.json

@@ -36,6 +36,10 @@
         "description": "Whether to run a build when any file changes.",
         "default": false
       },
+      "poll": {
+        "type": "number",
+        "description": "Enable and define the file watching poll time period in milliseconds. _Note: this is only supported in Angular versions >= 18.0.0_."
+      },
       "tailwindConfig": {
         "type": "string",
         "description": "The full path for the Tailwind configuration file, relative to the workspace root. If not provided and a `tailwind.config.js` file exists in the project or workspace root, it will be used. Otherwise, Tailwind will not be configured."

docs/generated/packages/angular/executors/package.json

@@ -41,6 +41,10 @@
         "description": "Whether to run a build when any file changes.",
         "default": false
       },
+      "poll": {
+        "type": "number",
+        "description": "Enable and define the file watching poll time period in milliseconds. _Note: this is only supported in Angular versions >= 18.0.0_."
+      },
       "tailwindConfig": {
         "type": "string",
         "description": "The full path for the Tailwind configuration file, relative to the workspace root. If not provided and a `tailwind.config.js` file exists in the project or workspace root, it will be used. Otherwise, Tailwind will not be configured. _Note: starting with Angular v17, this option is no longer used and the configuration will be picked up if exists at the project or workspace root_.",

packages/angular/src/executors/ng-packagr-lite/schema.json

@@ -33,6 +33,10 @@
       "description": "Whether to run a build when any file changes.",
       "default": false
     },
+    "poll": {
+      "type": "number",
+      "description": "Enable and define the file watching poll time period in milliseconds. _Note: this is only supported in Angular versions >= 18.0.0_."
+    },
     "tailwindConfig": {
       "type": "string",
       "description": "The full path for the Tailwind configuration file, relative to the workspace root. If not provided and a `tailwind.config.js` file exists in the project or workspace root, it will be used. Otherwise, Tailwind will not be configured."

packages/angular/src/executors/package/package.impl.ts

@@ -10,6 +10,7 @@ import type { NgPackagr } from 'ng-packagr';
 import { join, resolve } from 'path';
 import { from } from 'rxjs';
 import { mapTo, switchMap } from 'rxjs/operators';
+import { getInstalledAngularVersionInfo } from '../utilities/angular-version-utils';
 import { parseRemappedTsConfigAndMergeDefaults } from '../utilities/typescript';
 import { getNgPackagrInstance } from './ng-packagr-adjustments/ng-packagr';
 import type { BuildAngularLibraryExecutorOptions } from './schema';
@@ -56,6 +57,14 @@ export function createLibraryExecutor(
     options: BuildAngularLibraryExecutorOptions,
     context: ExecutorContext
   ) {
+    const { major: angularMajorVersion, version: angularVersion } =
+      getInstalledAngularVersionInfo();
+    if (angularMajorVersion < 18 && options.poll !== undefined) {
+      throw new Error(
+        `The "poll" option requires Angular version 18.0.0 or greater. You are currently using version ${angularVersion}.`
+      );
+    }
+
     const { target, dependencies, topLevelDependencies } =
       calculateProjectBuildableDependencies(
         context.taskGraph,

packages/angular/src/executors/package/schema.d.ts

@@ -1,6 +1,6 @@
-export interface BuildAngularLibraryExecutorOptions {
-  project: string;
+import type { NgPackagrBuilderOptions } from '@angular-devkit/build-angular';
+
+export interface BuildAngularLibraryExecutorOptions
+  extends NgPackagrBuilderOptions {
   tailwindConfig?: string;
-  tsConfig?: string;
-  watch?: boolean;
 }

packages/angular/src/executors/package/schema.json

@@ -33,6 +33,10 @@
       "description": "Whether to run a build when any file changes.",
       "default": false
     },
+    "poll": {
+      "type": "number",
+      "description": "Enable and define the file watching poll time period in milliseconds. _Note: this is only supported in Angular versions >= 18.0.0_."
+    },
     "tailwindConfig": {
       "type": "string",
       "description": "The full path for the Tailwind configuration file, relative to the workspace root. If not provided and a `tailwind.config.js` file exists in the project or workspace root, it will be used. Otherwise, Tailwind will not be configured. _Note: starting with Angular v17, this option is no longer used and the configuration will be picked up if exists at the project or workspace root_.",