refactor(@angular-devkit/build-angular): process bundle code quality improvements

Author: clydin

packages/angular_devkit/build_angular/src/browser/action-executor.ts

@@ -14,16 +14,18 @@ export class ActionExecutor<Input extends { size: number }, Output> {
 
   private smallThreshold = 32 * 1024;
 
-  constructor(actionFile: string, private readonly actionName: string) {
+  constructor(actionFile: string, private readonly actionName: string, setupOptions?: unknown) {
     // larger files are processed in a separate process to limit memory usage in the main process
     this.largeWorker = new JestWorker(actionFile, {
       exposedMethods: [actionName],
+      setupArgs: setupOptions === undefined ? undefined : [setupOptions],
     });
 
     // small files are processed in a limited number of threads to improve speed
     // The limited number also prevents a large increase in memory usage for an otherwise short operation
     this.smallWorker = new JestWorker(actionFile, {
       exposedMethods: [actionName],
+      setupArgs: setupOptions === undefined ? undefined : [setupOptions],
       numWorkers: os.cpus().length < 2 ? 1 : 2,
       // Will automatically fallback to processes if not supported
       enableWorkerThreads: true,

packages/angular_devkit/build_angular/src/browser/index.ts

@@ -543,13 +543,11 @@ export function buildWebpackBrowser(
                   processRuntimeAction = {
                     ...action,
                     cacheKeys,
-                    cachePath: cacheDownlevelPath || undefined,
                   };
                 } else {
                   processActions.push({
                     ...action,
                     cacheKeys,
-                    cachePath: cacheDownlevelPath || undefined,
                   });
                 }
               }
@@ -593,6 +591,7 @@ export function buildWebpackBrowser(
                     ? workerFile
                     : require.resolve('../utils/process-bundle-bootstrap'),
                   'process',
+                  { cachePath: cacheDownlevelPath },
                 );
 
                 try {