Fix bug and add deprecated warning for removed

Author: inverse

DependencyInjection/MonologExtension.php

@@ -947,15 +947,23 @@ private function getHandlerClassByType($handlerType)
         $v2HandlerTypesRemoved = [
             'hipchat',
             'raven',
+            'slackbot',
         ];
 
         if (Logger::API === 2) {
             $typeToClassMapping = array_merge($typeToClassMapping, $v2HandlerTypesAdded);
-            foreach($v2HandlerTypesRemoved as $handlerType) {
-                unset($typeToClassMapping[$handlerType]);
+            foreach($v2HandlerTypesRemoved as $v2HandlerTypeRemoved) {
+                unset($typeToClassMapping[$v2HandlerTypeRemoved]);
             }
         }
 
+        if (Logger::API === 1 && array_key_exists($handlerType, $v2HandlerTypesRemoved)) {
+            @trigger_error(
+                sprintf('"%s" is deprecated and will be removed in MonoLog v2.', $handlerType),
+                E_USER_DEPRECATED
+            );
+        }
+
         if (!isset($typeToClassMapping[$handlerType])) {
             if (Logger::API === 1 && array_key_exists($handlerType, $v2HandlerTypesAdded)) {
                 throw new InvalidArgumentException(

Tests/DependencyInjection/MonologExtensionTest.php

@@ -11,6 +11,7 @@
 
 namespace Symfony\Bundle\MonologBundle\Tests\DependencyInjection;
 
+use Monolog\Logger;
 use Symfony\Bundle\MonologBundle\DependencyInjection\MonologExtension;
 use Symfony\Bundle\MonologBundle\DependencyInjection\Compiler\LoggerChannelPass;
 use Symfony\Component\DependencyInjection\ContainerBuilder;
@@ -532,6 +533,35 @@ public function testFingersCrossedHandlerWhenExcludedHttpCodesAreSpecified()
         $this->assertDICConstructorArguments($handler, [new Reference('monolog.handler.nested'), new Reference('monolog.handler.main.http_code_strategy'), 0, true, true, null]);
     }
 
+    /**
+     * @param string $handlerType
+     * @dataProvider v2RemovedDataProvider
+     */
+    public function testMonologV2RemovedOnV1($handlerType)
+    {
+        if (Logger::API === 2) {
+            $this->doesNotPerformAssertions();
+
+            return;
+        }
+
+        $this->expectException(InvalidConfigurationException::class);
+
+        $container = new ContainerBuilder();
+        $loader = new MonologExtension();
+
+        $loader->load([['handlers' => ['main' => ['type' => $handlerType]]]], $container);
+    }
+
+    public function v2RemovedDataProvider()
+    {
+        return [
+            ['hipchat'],
+            ['raven'],
+            ['slackbot'],
+        ];
+    }
+
     protected function getContainer(array $config = [], array $thirdPartyDefinitions = [])
     {
         $container = new ContainerBuilder();