Fix to make Symfony Finder component optional (#267)

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Sule-Balogun Olanrewaju 2026-04-11 16:19:47 +01:00 • committed by GitHub
commit ea38ef7b62
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4 changed files with 17 additions and 3 deletions

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@ -9,6 +9,7 @@ All notable changes to `mcp/sdk` will be documented in this file.
* Add client component for building MCP clients
* Add `Builder::setReferenceHandler()` to allow custom `ReferenceHandlerInterface` implementations (e.g. authorization decorators)
* Add elicitation enum schema types per SEP-1330: `TitledEnumSchemaDefinition`, `MultiSelectEnumSchemaDefinition`, `TitledMultiSelectEnumSchemaDefinition`
* [BC break] Make Symfony Finder component optional. Users would need to install `symfony/finder` now themselves
0.4.0
-----

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@ -32,9 +32,11 @@
"psr/http-server-handler": "^1.0",
"psr/http-server-middleware": "^1.0",
"psr/log": "^1.0 || ^2.0 || ^3.0",
"symfony/finder": "^5.4 || ^6.4 || ^7.3 || ^8.0",
"symfony/uid": "^5.4 || ^6.4 || ^7.3 || ^8.0"
},
"suggest": {
"symfony/finder": "Required for file-based discovery."
},
"require-dev": {
"ext-openssl": "*",
"composer/semver": "^3.0",
@ -50,6 +52,7 @@
"psr/simple-cache": "^2.0 || ^3.0",
"symfony/cache": "^5.4 || ^6.4 || ^7.3 || ^8.0",
"symfony/console": "^5.4 || ^6.4 || ^7.3 || ^8.0",
"symfony/finder": "^5.4 || ^6.4 || ^7.3 || ^8.0",
"symfony/http-client": "^5.4 || ^6.4 || ^7.3 || ^8.0",
"symfony/process": "^5.4 || ^6.4 || ^7.3 || ^8.0"
},

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@ -24,6 +24,7 @@ use Mcp\Capability\Registry\ResourceReference;
use Mcp\Capability\Registry\ResourceTemplateReference;
use Mcp\Capability\Registry\ToolReference;
use Mcp\Exception\ExceptionInterface;
use Mcp\Exception\RuntimeException;
use Mcp\Schema\Prompt;
use Mcp\Schema\PromptArgument;
use Mcp\Schema\Resource;
@ -53,6 +54,10 @@ final class Discoverer implements DiscovererInterface
private ?DocBlockParser $docBlockParser = null,
private ?SchemaGeneratorInterface $schemaGenerator = null,
) {
if (!class_exists(Finder::class)) {
throw new RuntimeException('File-based discovery requires symfony/finder. Run: composer require symfony/finder');
}
$this->docBlockParser = $docBlockParser ?? new DocBlockParser(logger: $this->logger);
$this->schemaGenerator = $schemaGenerator ?? new SchemaGenerator($this->docBlockParser);
}

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@ -46,6 +46,7 @@ use Psr\EventDispatcher\EventDispatcherInterface;
use Psr\Log\LoggerInterface;
use Psr\Log\NullLogger;
use Psr\SimpleCache\CacheInterface;
use Symfony\Component\Finder\Finder;
/**
* @phpstan-import-type Handler from ElementReference
@ -523,8 +524,12 @@ final class Builder
);
if (null !== $this->discoveryBasePath) {
$discoverer = $this->discoverer ?? $this->createDiscoverer($logger);
$loaders[] = new DiscoveryLoader($this->discoveryBasePath, $this->discoveryScanDirs, $this->discoveryExcludeDirs, $discoverer);
if (null !== $this->discoverer || class_exists(Finder::class)) {
$discoverer = $this->discoverer ?? $this->createDiscoverer($logger);
$loaders[] = new DiscoveryLoader($this->discoveryBasePath, $this->discoveryScanDirs, $this->discoveryExcludeDirs, $discoverer);
} else {
$logger->warning('File-based discovery requires symfony/finder. Skipping automatic discovery. Run: composer require symfony/finder');
}
}
foreach ($loaders as $loader) {