refactor(@angular-devkit/build-angular): use direct type assertions for cache option normalization

Author: clydin

packages/angular_devkit/build_angular/src/utils/normalize-cache.ts

@@ -6,7 +6,6 @@
  * found in the LICENSE file at https://angular.io/license
  */
 
-import { json } from '@angular-devkit/core';
 import { join, resolve } from 'path';
 import { VERSION } from './package-version';
 
@@ -25,14 +24,22 @@ interface CacheMetadata {
   path?: string;
 }
 
+function hasCacheMetadata(value: unknown): value is { cli: { cache: CacheMetadata } } {
+  return (
+    !!value &&
+    typeof value === 'object' &&
+    'cli' in value &&
+    !!value['cli'] &&
+    typeof value['cli'] === 'object' &&
+    'cache' in value['cli']
+  );
+}
+
 export function normalizeCacheOptions(
-  metadata: json.JsonObject,
+  projectMetadata: unknown,
   worspaceRoot: string,
 ): NormalizedCachedOptions {
-  const cacheMetadata: CacheMetadata =
-    json.isJsonObject(metadata.cli) && json.isJsonObject(metadata.cli.cache)
-      ? metadata.cli.cache
-      : {};
+  const cacheMetadata = hasCacheMetadata(projectMetadata) ? projectMetadata.cli.cache : {};
 
   const { enabled = true, environment = 'local', path = '.angular/cache' } = cacheMetadata;
   const isCI = process.env['CI'] === '1' || process.env['CI']?.toLowerCase() === 'true';