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[MCP Bundle] Make MonologBundle optional #864

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[MCP Bundle] Make MonologBundle optional #864

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9fa5c11
Make MonologBundle optional in McpBundle
camilleislasse Nov 13, 2025
ecea6d6
Conditionally call Builder->setLogger() only when MonologBundle exi…
camilleislasse Nov 14, 2025
a8500ca
Add MonologBundle to require-dev to ensure tests run in CI
camilleislasse Nov 15, 2025
ddf1694
Simplify Transport instantiation with nullable logger
camilleislasse Nov 24, 2025
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3 changes: 2 additions & 1 deletion src/mcp-bundle/composer.json
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Original file line number Diff line number Diff line change
Expand Up @@ -24,7 +24,8 @@
"require-dev": {
"phpstan/phpstan": "^2.1",
"phpstan/phpstan-strict-rules": "^2.0",
"phpunit/phpunit": "^11.5"
"phpunit/phpunit": "^11.5",
"symfony/monolog-bundle": "^3.10"
},
"minimum-stability": "dev",
"prefer-stable": true,
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23 changes: 16 additions & 7 deletions src/mcp-bundle/config/services.php
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Expand Up @@ -13,24 +13,33 @@

use Mcp\Server;
use Mcp\Server\Builder;
use Symfony\Bundle\MonologBundle\MonologBundle;

return static function (ContainerConfigurator $container): void {
$container->services()
->set('monolog.logger.mcp')
->parent('monolog.logger_prototype')
->args(['mcp'])
->tag('monolog.logger', ['channel' => 'mcp'])
if (class_exists(MonologBundle::class)) {
$container->services()
->set('monolog.logger.mcp')
->parent('monolog.logger_prototype')
->args(['mcp'])
->tag('monolog.logger', ['channel' => 'mcp'])
;
}

$builderDefinition = $container->services()
->set('mcp.server.builder', Builder::class)
->factory([Server::class, 'builder'])
->call('setServerInfo', [param('mcp.app'), param('mcp.version')])
->call('setPaginationLimit', [param('mcp.pagination_limit')])
->call('setInstructions', [param('mcp.instructions')])
->call('setLogger', [service('monolog.logger.mcp')])
->call('setEventDispatcher', [service('event_dispatcher')])
->call('setSession', [service('mcp.session.store')])
->call('setDiscovery', [param('kernel.project_dir'), param('mcp.discovery.scan_dirs'), param('mcp.discovery.exclude_dirs')])
->call('setDiscovery', [param('kernel.project_dir'), param('mcp.discovery.scan_dirs'), param('mcp.discovery.exclude_dirs')]);

if (class_exists(MonologBundle::class)) {
$builderDefinition->call('setLogger', [service('monolog.logger.mcp')]);
}

$container->services()
->set('mcp.server', Server::class)
->factory([service('mcp.server.builder'), 'build'])

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2 changes: 1 addition & 1 deletion src/mcp-bundle/src/Command/McpCommand.php
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Expand Up @@ -24,7 +24,7 @@ class McpCommand extends Command
{
public function __construct(
private readonly Server $server,
private readonly LoggerInterface $logger,
private readonly ?LoggerInterface $logger = null,
) {
parent::__construct();
}
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2 changes: 1 addition & 1 deletion src/mcp-bundle/src/McpBundle.php
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Expand Up @@ -114,7 +114,7 @@ private function configureClient(array $transports, array $httpConfig, Container
$container->register('mcp.server.command', McpCommand::class)
->setArguments([
new Reference('mcp.server'),
new Reference('logger'),
new Reference('monolog.logger.mcp', ContainerInterface::NULL_ON_INVALID_REFERENCE),
])
->addTag('console.command');
}
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5 changes: 5 additions & 0 deletions src/mcp-bundle/tests/DependencyInjection/McpBundleTest.php
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Expand Up @@ -14,6 +14,7 @@
use PHPUnit\Framework\Attributes\DataProvider;
use PHPUnit\Framework\TestCase;
use Symfony\AI\McpBundle\McpBundle;
use Symfony\Bundle\MonologBundle\MonologBundle;
use Symfony\Component\DependencyInjection\ContainerBuilder;

class McpBundleTest extends TestCase
Expand Down Expand Up @@ -49,6 +50,10 @@ public function testCustomConfiguration()

public function testMcpLoggerServiceIsCreated()
{
if (!class_exists(MonologBundle::class)) {
$this->markTestSkipped('MonologBundle is not installed');
}

Comment on lines +53 to +56
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@WebMamba WebMamba Nov 14, 2025

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Since monolog is never installed on the ci, this test will be always skipped, so the rest of the test is useless. What do you think about requiring monolog on dev then?

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@camilleislasse camilleislasse Nov 15, 2025

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a8500ca

$container = $this->buildContainer([]);

$this->assertTrue($container->hasDefinition('monolog.logger.mcp'));
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