perf(@angular/cli): enable Node.js compile code cache when available

packages/angular/build/src/tools/angular/compilation/parallel-compilation.ts

@@ -8,7 +8,7 @@
 
 import type { CompilerOptions } from '@angular/compiler-cli';
 import type { PartialMessage } from 'esbuild';
-import { createRequire } from 'node:module';
+import { createRequire, getCompileCacheDir } from 'node:module';
 import { MessageChannel } from 'node:worker_threads';
 import Piscina from 'piscina';
 import type { SourceFile } from 'typescript';
@@ -41,6 +41,11 @@ export class ParallelCompilation extends AngularCompilation {
       useAtomics: !process.versions.webcontainer,
       filename: localRequire.resolve('./parallel-worker'),
       recordTiming: false,
+      env: {
+        ...process.env,
+        // Enable compile code caching if enabled for the main process (only exists on Node.js v22.8+)
+        'NODE_COMPILE_CACHE': getCompileCacheDir?.(),
+      },
     });
   }
 

packages/angular/build/src/tools/esbuild/javascript-transformer.ts

@@ -8,6 +8,7 @@
 
 import { createHash } from 'node:crypto';
 import { readFile } from 'node:fs/promises';
+import { getCompileCacheDir } from 'node:module';
 import Piscina from 'piscina';
 import { Cache } from './cache';
 
@@ -62,6 +63,11 @@ export class JavaScriptTransformer {
       // Shutdown idle threads after 1 second of inactivity
       idleTimeout: 1000,
       recordTiming: false,
+      env: {
+        ...process.env,
+        // Enable compile code caching if enabled for the main process (only exists on Node.js v22.8+)
+        'NODE_COMPILE_CACHE': getCompileCacheDir?.(),
+      },
     });
 
     return this.#workerPool;

packages/angular/build/src/tools/sass/sass-service.ts

@@ -7,6 +7,7 @@
  */
 
 import assert from 'node:assert';
+import { getCompileCacheDir } from 'node:module';
 import { fileURLToPath, pathToFileURL } from 'node:url';
 import { MessageChannel } from 'node:worker_threads';
 import { Piscina } from 'piscina';
@@ -101,6 +102,11 @@ export class SassWorkerImplementation {
       // Shutdown idle threads after 1 second of inactivity
       idleTimeout: 1000,
       recordTiming: false,
+      env: {
+        ...process.env,
+        // Enable compile code caching if enabled for the main process (only exists on Node.js v22.8+)
+        'NODE_COMPILE_CACHE': getCompileCacheDir?.(),
+      },
     });
 
     return this.#workerPool;

packages/angular/build/src/typings.d.ts

@@ -17,3 +17,10 @@
 declare module 'esbuild' {
   export * from 'esbuild-wasm';
 }
+
+/**
+ * Augment the Node.js module builtin types to support the v22.8+ compile cache functions
+ */
+declare module 'node:module' {
+  function getCompileCacheDir(): string | undefined;
+}

packages/angular/cli/bin/bootstrap.js

@@ -18,4 +18,12 @@
  * range.
  */
 
-import('../lib/init.js');
+// Enable on-disk code caching if available (Node.js 22.8+)
+try {
+  const { enableCompileCache } = require('node:module');
+
+  enableCompileCache?.();
+} catch {}
+
+// Initialize the Angular CLI
+void import('../lib/init.js');