Issue #3395032 by kim.pepper, acbramley, longwave: Add autoconfigure for module loggers

core/lib/Drupal/Core/CoreServiceProvider.php

@@ -9,22 +9,24 @@
 use Drupal\Core\DependencyInjection\Compiler\CorsCompilerPass;
 use Drupal\Core\DependencyInjection\Compiler\DeprecatedServicePass;
 use Drupal\Core\DependencyInjection\Compiler\DevelopmentSettingsPass;
+use Drupal\Core\DependencyInjection\Compiler\LoggerAwarePass;
+use Drupal\Core\DependencyInjection\Compiler\ModifyServiceDefinitionsPass;
 use Drupal\Core\DependencyInjection\Compiler\ProxyServicesPass;
+use Drupal\Core\DependencyInjection\Compiler\RegisterAccessChecksPass;
+use Drupal\Core\DependencyInjection\Compiler\RegisterEventSubscribersPass;
+use Drupal\Core\DependencyInjection\Compiler\RegisterServicesForDestructionPass;
+use Drupal\Core\DependencyInjection\Compiler\RegisterStreamWrappersPass;
 use Drupal\Core\DependencyInjection\Compiler\StackedKernelPass;
 use Drupal\Core\DependencyInjection\Compiler\StackedSessionHandlerPass;
-use Drupal\Core\DependencyInjection\Compiler\RegisterStreamWrappersPass;
+use Drupal\Core\DependencyInjection\Compiler\TaggedHandlersPass;
 use Drupal\Core\DependencyInjection\Compiler\TwigExtensionPass;
+use Drupal\Core\DependencyInjection\ContainerBuilder;
 use Drupal\Core\DependencyInjection\ServiceModifierInterface;
 use Drupal\Core\DependencyInjection\ServiceProviderInterface;
-use Drupal\Core\DependencyInjection\ContainerBuilder;
-use Drupal\Core\DependencyInjection\Compiler\ModifyServiceDefinitionsPass;
-use Drupal\Core\DependencyInjection\Compiler\TaggedHandlersPass;
-use Drupal\Core\DependencyInjection\Compiler\RegisterEventSubscribersPass;
-use Drupal\Core\DependencyInjection\Compiler\RegisterAccessChecksPass;
-use Drupal\Core\DependencyInjection\Compiler\RegisterServicesForDestructionPass;
 use Drupal\Core\Plugin\PluginManagerPass;
 use Drupal\Core\Render\MainContent\MainContentRenderersPass;
 use Drupal\Core\Site\Settings;
+use Psr\Log\LoggerAwareInterface;
 use Symfony\Component\DependencyInjection\Compiler\PassConfig;
 use Symfony\Component\DependencyInjection\Reference;
 use Symfony\Component\EventDispatcher\EventSubscriberInterface;
@@ -81,6 +83,7 @@ public function register(ContainerBuilder $container) {
 
     // Add a compiler pass for registering event subscribers.
     $container->addCompilerPass(new RegisterEventSubscribersPass(), PassConfig::TYPE_AFTER_REMOVING);
+    $container->addCompilerPass(new LoggerAwarePass(), PassConfig::TYPE_AFTER_REMOVING);
 
     $container->addCompilerPass(new RegisterAccessChecksPass());
 
@@ -99,6 +102,10 @@ public function register(ContainerBuilder $container) {
 
     $container->registerForAutoconfiguration(EventSubscriberInterface::class)
       ->addTag('event_subscriber');
+
+    $container->registerForAutoconfiguration(LoggerAwareInterface::class)
+      ->addTag('logger_aware');
+
   }
 
   /**

core/lib/Drupal/Core/DependencyInjection/Compiler/LoggerAwarePass.php

+<?php
+
+namespace Drupal\Core\DependencyInjection\Compiler;
+
+use Psr\Log\LoggerAwareInterface;
+use Symfony\Component\DependencyInjection\Compiler\CompilerPassInterface;
+use Symfony\Component\DependencyInjection\ContainerBuilder;
+use Symfony\Component\DependencyInjection\Reference;
+
+/**
+ * Sets the logger on all services that implement LoggerAwareInterface.
+ */
+class LoggerAwarePass implements CompilerPassInterface {
+
+  /**
+   * {@inheritdoc}
+   */
+  public function process(ContainerBuilder $container): void {
+    $interface = LoggerAwareInterface::class;
+    foreach ($container->findTaggedServiceIds('logger_aware') as $id => $attributes) {
+      $definition = $container->getDefinition($id);
+      // Skip services that are already calling setLogger().
+      if ($definition->hasMethodCall('setLogger')) {
+        continue;
+      }
+      if (!is_subclass_of($definition->getClass(), $interface)) {
+        throw new \InvalidArgumentException(sprintf('Service "%s" must implement interface "%s".', $id, $interface));
+      }
+      $providerTag = $definition->getTag('_provider');
+      $loggerId = 'logger.channel.' . $providerTag[0]['provider'];
+      if ($container->has($loggerId)) {
+        $definition->addMethodCall('setLogger', [new Reference($loggerId)]);
+      }
+    }
+  }
+
+}

core/modules/system/tests/modules/logger_aware_test/logger_aware_test.info.yml

+name: 'Logger Aware Autoconfigure Test'
+type: module
+description: 'Test logger aware auto-configuration support'
+package: Testing
+version: VERSION

core/modules/system/tests/modules/logger_aware_test/logger_aware_test.services.yml

+services:
+  _defaults:
+    autoconfigure: true
+
+  logger_aware_test.logger_aware_stub:
+    class: Drupal\logger_aware_test\LoggerAwareStub
+
+  logger.channel.logger_aware_test:
+    parent: logger.channel_base
+    arguments: ['logger_aware_test']
+
+  logger.channel.logger_stub:
+    class: Drupal\logger_aware_test\LoggerStub
+
+  logger_aware_test.logger_aware_existing:
+    class: Drupal\logger_aware_test\LoggerAwareStub
+    calls:
+      - [setLogger, ['@logger.channel.logger_stub']]

core/modules/system/tests/modules/logger_aware_test/src/LoggerAwareStub.php

+<?php
+
+declare(strict_types=1);
+
+namespace Drupal\logger_aware_test;
+
+use Psr\Log\LoggerAwareInterface;
+use Psr\Log\LoggerAwareTrait;
+use Psr\Log\LoggerInterface;
+
+/**
+ * A test class that implements LoggerAwareInterface.
+ */
+class LoggerAwareStub implements LoggerAwareInterface {
+
+  use LoggerAwareTrait;
+
+  /**
+   * Gets the logger.
+   */
+  public function getLogger(): LoggerInterface {
+    return $this->logger;
+  }
+
+}

core/modules/system/tests/modules/logger_aware_test/src/LoggerStub.php

+<?php
+
+namespace Drupal\logger_aware_test;
+
+use Psr\Log\AbstractLogger;
+
+/**
+ * A logger stub.
+ */
+class LoggerStub extends AbstractLogger {
+
+  /**
+   * {@inheritdoc}
+   */
+  public function log($level, $message, array $context = []): void {
+    // Do nothing.
+  }
+
+}

core/modules/system/tests/src/Kernel/DependencyInjection/CompilerPass/LoggerAwarePassTest.php

+<?php
+
+declare(strict_types=1);
+
+namespace Drupal\Tests\system\Kernel\DependencyInjection\CompilerPass;
+
+use Drupal\KernelTests\KernelTestBase;
+use Drupal\logger_aware_test\LoggerAwareStub;
+use Drupal\logger_aware_test\LoggerStub;
+use Psr\Log\LoggerInterface;
+
+/**
+ * Tests the logger aware compiler pass.
+ *
+ * @group system
+ * @coversDefaultClass \Drupal\Core\DependencyInjection\Compiler\LoggerAwarePass
+ */
+class LoggerAwarePassTest extends KernelTestBase {
+
+  /**
+   * {@inheritdoc}
+   */
+  protected static $modules = [
+    'system',
+    'logger_aware_test',
+  ];
+
+  /**
+   * Tests that the logger aware compiler pass works.
+   *
+   * @covers ::process
+   */
+  public function testLoggerAwarePass(): void {
+    $container = $this->container;
+    $logger = $container->get('logger.channel.logger_aware_test');
+    $this->assertInstanceOf(LoggerInterface::class, $logger);
+    $logger_aware_stub = $container->get('logger_aware_test.logger_aware_stub');
+    $this->assertInstanceOf(LoggerAwareStub::class, $logger_aware_stub);
+    $this->assertSame($logger, $logger_aware_stub->getLogger());
+  }
+
+  /**
+   * Tests that existing loggers are not overwritten.
+   *
+   * @covers ::process
+   */
+  public function testExistingLogger(): void {
+    $container = $this->container;
+    $logger_aware_stub = $container->get('logger_aware_test.logger_aware_existing');
+    $logger = $logger_aware_stub->getLogger();
+    $this->assertInstanceOf(LoggerStub::class, $logger);
+  }
+
+}