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FixEmptyLoggerPass.php
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FixEmptyLoggerPass.php
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<?php
/*
* This file is part of the Symfony package.
*
* (c) Fabien Potencier <fabien@symfony.com>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace Symfony\Bundle\MonologBundle\DependencyInjection\Compiler;
use Symfony\Component\DependencyInjection\Compiler\CompilerPassInterface;
use Symfony\Component\DependencyInjection\ContainerBuilder;
use Symfony\Component\DependencyInjection\Reference;
/**
* Fixes loggers with no handlers (by registering a "null" one).
*
* Monolog 1.x adds a default handler logging on STDERR when a logger has
* no registered handlers. This is NOT what what we want in Symfony, so in such
* cases, we add a "null" handler to avoid the issue.
*
* Note that Monolog 2.x does not register a default handler anymore, so this pass can
* be removed when MonologBundle minimum version of Monolog is bumped to 2.0.
*
* @author Fabien Potencier <fabien@symfony.com>
*
* @see https://github.com/Seldaek/monolog/commit/ad37b7b2d11f300cbace9f5e84f855d329519e28
*
* @internalsince 3.9.0
*/
class FixEmptyLoggerPass implements CompilerPassInterface
{
private $channelPass;
public function __construct(LoggerChannelPass $channelPass)
{
$this->channelPass = $channelPass;
}
public function process(ContainerBuilder $container)
{
$container->register('monolog.handler.null_internal', 'Monolog\Handler\NullHandler');
foreach ($this->channelPass->getChannels() as $channel) {
$def = $container->getDefinition($channel === 'app' ? 'monolog.logger' : 'monolog.logger.'.$channel);
foreach ($def->getMethodCalls() as $method) {
if ('pushHandler' === $method[0]) {
continue 2;
}
}
$def->addMethodCall('pushHandler', [new Reference('monolog.handler.null_internal')]);
}
}
}