[Translator] Mark the translator as nullable

src/Translator/config/services.php

@@ -24,8 +24,9 @@
     $container->services()
         ->set('ux.translator.cache_warmer.translations_cache_warmer', TranslationsCacheWarmer::class)
             ->args([
-                service('translator'),
+                service('translator')->nullOnInvalid(),
                 service('ux.translator.translations_dumper'),
+                service('logger')->ignoreOnInvalid(),
             ])
             ->tag('kernel.cache_warmer')
 

src/Translator/doc/index.rst

@@ -71,6 +71,10 @@ For a better developer experience, TypeScript types definitions are also generat
 Then, you will be able to import those JavaScript translations in your assets.
 Don't worry about your final bundle size, only the translations you use will be included in your final bundle, thanks to the `tree shaking <https://webpack.js.org/guides/tree-shaking/>`_.
 
+.. note::
+
+    This package requires the ``translator`` package to be enabled in your Symfony application. If you don't use the ``translator`` package, the warmup command will not generate any translations.
+
 Configuring the dumped translations
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 

src/Translator/src/CacheWarmer/TranslationsCacheWarmer.php

@@ -11,8 +11,10 @@
 
 namespace Symfony\UX\Translator\CacheWarmer;
 
+use Psr\Log\LoggerInterface;
 use Symfony\Component\HttpKernel\CacheWarmer\CacheWarmerInterface;
 use Symfony\Component\Translation\TranslatorBagInterface;
+use Symfony\Contracts\Translation\TranslatorInterface;
 use Symfony\UX\Translator\TranslationsDumper;
 
 /**
@@ -23,8 +25,9 @@
 class TranslationsCacheWarmer implements CacheWarmerInterface
 {
     public function __construct(
-        private TranslatorBagInterface $translatorBag,
+        private TranslatorInterface|TranslatorBagInterface|null $translatorBag,
         private TranslationsDumper $translationsDumper,
+        private readonly ?LoggerInterface $logger = null,
     ) {
     }
 
@@ -35,6 +38,11 @@ public function isOptional(): bool
 
     public function warmUp(string $cacheDir, ?string $buildDir = null): array
     {
+        if (!$this->translatorBag instanceof TranslatorBagInterface) {
+            $this->logger?->warning('Translator bag not available');
+
+            return [];
+        }
         $this->translationsDumper->dump(
             ...$this->translatorBag->getCatalogues()
         );

src/Translator/tests/CacheWarmer/TranslationsCacheWarmerTest.php

@@ -12,7 +12,9 @@
 namespace Symfony\UX\Translator\Tests\CacheWarmer;
 
 use PHPUnit\Framework\TestCase;
+use Psr\Log\LoggerInterface;
 use Symfony\Component\Translation\MessageCatalogue;
+use Symfony\Component\Translation\Translator;
 use Symfony\Component\Translation\TranslatorBag;
 use Symfony\UX\Translator\CacheWarmer\TranslationsCacheWarmer;
 use Symfony\UX\Translator\TranslationsDumper;
@@ -55,4 +57,26 @@ public function test()
 
         $translationsCacheWarmer->warmUp(self::$cacheDir);
     }
+
+    public function testWithoutTranslator()
+    {
+        $translationsDumperMock = $this->createMock(TranslationsDumper::class);
+        $translationsDumperMock
+            ->expects($this->never())
+            ->method('dump');
+
+        $loggerMock = $this->createMock(LoggerInterface::class);
+        $loggerMock
+            ->expects($this->once())
+            ->method('warning')
+            ->with('Translator bag not available');
+
+        $translationsCacheWarmer = new TranslationsCacheWarmer(
+            null,
+            $translationsDumperMock,
+            $loggerMock,
+        );
+
+        $translationsCacheWarmer->warmUp(self::$cacheDir);
+    }
 }

src/Translator/tests/Kernel/FrameworkAppKernel.php

@@ -38,6 +38,10 @@ public function registerContainerConfiguration(LoaderInterface $loader)
                 'secret' => '$ecret',
                 'test' => true,
                 'translator' => [
+                    'enabled' => match ($this->environment) {
+                        'test_without_translator' => false,
+                        default => true,
+                    },
                     'fallbacks' => ['en'],
                 ],
                 'http_method_override' => false,

src/Translator/tests/UxTranslatorBundleTest.php

@@ -22,6 +22,7 @@ public static function provideKernels()
     {
         yield 'empty' => [new EmptyAppKernel('test', true)];
         yield 'framework' => [new FrameworkAppKernel('test', true)];
+        yield 'framework without translator' => [new FrameworkAppKernel('test_without_translator', true)];
     }
 
     /**