パッケージのログチャネル拡張と再解決

<?php

namespace Acme\Audit\Logging;

use Monolog\Handler\StreamHandler;
use Monolog\Logger;

final class CreateAuditLogger
{
    public function __invoke(array $config): Logger
    {
        return new Logger(
            $config['name'] ?? 'acme-audit',
            [new StreamHandler($config['path'], $config['level'] ?? 'info')],
        );
    }
}

'audit' => [
    'driver' => 'custom',
    'via' => \Acme\Audit\Logging\CreateAuditLogger::class,
    'path' => storage_path('logs/audit.log'),
    'level' => 'info',
],

use Illuminate\Support\Facades\Log;

Log::channel('audit')->info('注文を確定しました。', ['order_id' => 42]);

<?php

namespace Acme\Audit;

use Acme\Audit\Logging\CreateAuditLogger;
use Illuminate\Contracts\Foundation\Application;
use Illuminate\Log\LogManager;
use Illuminate\Support\ServiceProvider;
use Monolog\Logger as Monolog;

class AuditServiceProvider extends ServiceProvider
{
    public function boot(): void
    {
        $this->callAfterResolving('log', static function (LogManager $manager): void {
            $manager->extend('acme-audit', static function (Application $app, array $config): Monolog {
                return $app->make(CreateAuditLogger::class)($config);
            });
        });
    }
}

'audit' => [
    'driver' => 'acme-audit',
    'path' => storage_path('logs/audit.log'),
    'level' => 'info',
],

use Illuminate\Support\Facades\Log;

$before = Log::channel('audit');

config(['logging.channels.audit.level' => 'error']);

$same = Log::channel('audit');

Log::forgetChannel('audit');

$after = Log::channel('audit');

<?php

namespace Acme\Audit\Tests;

use Acme\Audit\AuditServiceProvider;
use Acme\Audit\Logging\CreateAuditLogger;
use Illuminate\Log\Logger;
use Illuminate\Support\Facades\Log;
use Monolog\Handler\StreamHandler;
use Monolog\Level;
use Monolog\Logger as Monolog;
use Orchestra\Testbench\TestCase;

class AuditLoggingTest extends TestCase
{
    protected function getPackageProviders($app): array
    {
        return [AuditServiceProvider::class];
    }

    protected function defineEnvironment($app): void
    {
        $app['config']->set('logging.channels.audit', [
            'driver' => 'acme-audit',
            'path' => 'php://memory',
            'level' => 'warning',
        ]);

        $app['config']->set('logging.channels.emergency.path', 'php://memory');
    }

    public function test_the_package_driver_creates_the_configured_logger(): void
    {
        $this->assertAuditChannel(Log::channel('audit'), Level::Warning);
    }

    public function test_configuration_changes_require_a_new_channel(): void
    {
        $before = Log::channel('audit');

        config(['logging.channels.audit.level' => 'error']);

        $this->assertSame($before, Log::channel('audit'));
        $this->assertAuditChannel($before, Level::Warning);

        Log::forgetChannel('audit');

        $after = Log::channel('audit');

        $this->assertNotSame($before, $after);
        $this->assertAuditChannel($after, Level::Error);
        $this->assertAuditChannel($before, Level::Warning);
    }

    public function test_the_same_factory_can_be_used_with_via(): void
    {
        config([
            'logging.channels.audit.driver' => 'custom',
            'logging.channels.audit.via' => CreateAuditLogger::class,
        ]);

        Log::forgetChannel('audit');

        $this->assertAuditChannel(Log::channel('audit'), Level::Warning);
    }

    private function assertAuditChannel(Logger $channel, Level $level): void
    {
        $logger = $channel->getLogger();

        $this->assertInstanceOf(Monolog::class, $logger);
        $this->assertSame('acme-audit', $logger->getName());
        $this->assertCount(1, $logger->getHandlers());

        $handler = $logger->getHandlers()[0];

        $this->assertInstanceOf(StreamHandler::class, $handler);
        $this->assertSame($level, $handler->getLevel());
    }
}