Merge pull request #203 from chalasr/autowire-logger

Add autowiring alias for LoggerInterface

Author: Seldaek

DependencyInjection/MonologExtension.php

@@ -52,12 +52,11 @@ public function load(array $configs, ContainerBuilder $container)
         if (isset($config['handlers'])) {
             $loader = new XmlFileLoader($container, new FileLocator(__DIR__.'/../Resources/config'));
             $loader->load('monolog.xml');
-            $container->setAlias('logger', 'monolog.logger');
 
             $container->setParameter('monolog.use_microseconds', $config['use_microseconds']);
 
-            // always autowire the main logger, require Symfony >= 2.8
-            if (method_exists('Symfony\Component\DependencyInjection\Definition', 'addAutowiringType')) {
+            // always autowire the main logger, require Symfony >= 2.8, < 3.3
+            if (!method_exists('Symfony\Component\DependencyInjection\ContainerBuilder', 'fileExists') && method_exists('Symfony\Component\DependencyInjection\Definition', 'addAutowiringType')) {
                 $container->getDefinition('monolog.logger')->addAutowiringType('Psr\Log\LoggerInterface');
             }
 

Resources/config/monolog.xml

@@ -14,6 +14,8 @@
 
         <service id="logger" alias="monolog.logger" />
 
+        <service id="Psr\Log\LoggerInterface" alias="logger" public="false" />
+
         <service id="monolog.logger_prototype" class="Symfony\Bridge\Monolog\Logger" abstract="true">
             <argument /><!-- Channel -->
         </service>