From d70363dd9f66e7dae8e60e85734844f066bcd6f5 Mon Sep 17 00:00:00 2001
From: Charles Lyding <19598772+clydin@users.noreply.github.com>
Date: Mon, 20 Oct 2025 17:29:39 -0400
Subject: [PATCH] refactor(@angular/cli): correct package manager cache key and
 add barrel file

The in-memory cache for the package manager abstraction did not properly include the registry URL in its cache key. This could lead to cache collisions if the same package was requested from two different registries. This commit corrects the cache key to be a composite of the package specifier and the registry URL.

Additionally, a new `index.ts` barrel file has been added to create a single, clear public entry point for the package manager feature, improving code organization.
---
 packages/angular/cli/src/package-managers/index.ts  | 13 +++++++++++++
 .../cli/src/package-managers/package-manager.ts     |  5 +++--
 .../cli/src/package-managers/package-metadata.ts    |  3 +++
 3 files changed, 19 insertions(+), 2 deletions(-)
 create mode 100644 packages/angular/cli/src/package-managers/index.ts

diff --git a/packages/angular/cli/src/package-managers/index.ts b/packages/angular/cli/src/package-managers/index.ts
new file mode 100644
index 000000000000..002ade0cdb01
--- /dev/null
+++ b/packages/angular/cli/src/package-managers/index.ts
@@ -0,0 +1,13 @@
+/**
+ * @license
+ * Copyright Google LLC All Rights Reserved.
+ *
+ * Use of this source code is governed by an MIT-style license that can be
+ * found in the LICENSE file at https://angular.dev/license
+ */
+
+export { createPackageManager } from './factory';
+export type { PackageManagerName } from './package-manager-descriptor';
+export { PackageManager } from './package-manager';
+export type * from './package-metadata';
+export type { InstalledPackage } from './package-tree';
diff --git a/packages/angular/cli/src/package-managers/package-manager.ts b/packages/angular/cli/src/package-managers/package-manager.ts
index f6ec79da0865..4f4620994769 100644
--- a/packages/angular/cli/src/package-managers/package-manager.ts
+++ b/packages/angular/cli/src/package-managers/package-manager.ts
@@ -35,6 +35,7 @@ const METADATA_FIELDS = ['name', 'dist-tags', 'versions', 'time'] as const;
 const MANIFEST_FIELDS = [
   'name',
   'version',
+  'deprecated',
   'dependencies',
   'peerDependencies',
   'devDependencies',
@@ -337,7 +338,7 @@ export class PackageManager {
     return this.#fetchAndParse(
       commandArgs,
       (stdout, logger) => this.descriptor.outputParsers.getRegistryMetadata(stdout, logger),
-      { ...options, cache: this.#metadataCache, cacheKey: packageName },
+      { ...options, cache: this.#metadataCache, cacheKey },
     );
   }
 
@@ -369,7 +370,7 @@ export class PackageManager {
     return this.#fetchAndParse(
       commandArgs,
       (stdout, logger) => this.descriptor.outputParsers.getPackageManifest(stdout, logger),
-      { ...options, cache: this.#manifestCache, cacheKey: specifier },
+      { ...options, cache: this.#manifestCache, cacheKey },
     );
   }
 
diff --git a/packages/angular/cli/src/package-managers/package-metadata.ts b/packages/angular/cli/src/package-managers/package-metadata.ts
index 2bf3c7edb41c..6f88ea8a0e8f 100644
--- a/packages/angular/cli/src/package-managers/package-metadata.ts
+++ b/packages/angular/cli/src/package-managers/package-metadata.ts
@@ -80,6 +80,9 @@ export interface PackageManifest {
   /** The version of the package. */
   version: string;
 
+  /** A message indicating that the package version is deprecated. */
+  deprecated?: string;
+
   /** A mapping of production dependencies. */
   dependencies?: Record<string, string>;