Use the correct packagist.org domain for metadata routes

.github/workflows/test.yml

@@ -28,7 +28,7 @@ jobs:
 
       - name: Cache Composer packages
         id: composer-cache
-        uses: actions/cache@v2
+        uses: actions/cache@v4
         with:
           path: vendor
           key: ${{ runner.os }}-php-${{ hashFiles('**/composer.lock') }}

composer.json

@@ -41,5 +41,10 @@
     "scripts": {
         "lint": "vendor/bin/phpcs --standard=PSR12 src/",
         "test": "vendor/bin/phpspec run -f pretty"
+    },
+    "config": {
+        "allow-plugins": {
+            "php-http/discovery": true
+        }
     }
 }

spec/Packagist/Api/ClientSpec.php

@@ -106,11 +106,11 @@ public function it_gets_composer_package_details(HttpClient $client, Factory $fa
         $response->getBody()->shouldBeCalled()->willReturn($body);
         $body->getContents()->shouldBeCalledTimes(2)->willReturn($data1, $data2);
 
-        $client->request('GET', 'https://packagist.org/p2/sylius/sylius.json')
+        $client->request('GET', 'https://repo.packagist.org/p2/sylius/sylius.json')
             ->shouldBeCalled()
             ->willReturn($response);
 
-        $client->request('GET', 'https://packagist.org/p2/sylius/sylius~dev.json')
+        $client->request('GET', 'https://repo.packagist.org/p2/sylius/sylius~dev.json')
             ->shouldBeCalled()
             ->willReturn($response);
 
@@ -140,7 +140,7 @@ public function it_gets_composer_releases_package_details(HttpClient $client, Fa
         $response->getBody()->shouldBeCalled()->willReturn($body);
         $body->getContents()->shouldBeCalled()->willReturn($data);
 
-        $client->request('GET', 'https://packagist.org/p2/sylius/sylius.json')
+        $client->request('GET', 'https://repo.packagist.org/p2/sylius/sylius.json')
             ->shouldBeCalled()
             ->willReturn($response);
 

src/Packagist/Api/Client.php

@@ -287,6 +287,10 @@ private function filterAdvisories(array $advisories, array $packages): array
      */
     protected function url(string $route): string
     {
+        if (preg_match('{^/p\d?/}', $route) && $this->packagistUrl === 'https://packagist.org') {
+            return 'https://repo.packagist.org' . $route;
+        }
+
         return $this->packagistUrl . $route;
     }