Enable dumping docs to yaml

Command/DumpCommand.php

@@ -48,7 +48,7 @@ class DumpCommand extends Command
     {
         $availableFormats = $this->renderOpenApi->getAvailableFormats();
         $this
-            ->setDescription('Dumps documentation in OpenAPI JSON format or HTML')
+            ->setDescription('Dumps documentation in OpenAPI format to: '.implode(', ', $availableFormats))
             ->addOption('area', '', InputOption::VALUE_OPTIONAL, '', 'default')
             ->addOption(
                 'format',

Controller/YamlDocumentationController.php

@@ -11,37 +11,38 @@
 
 namespace Nelmio\ApiDocBundle\Controller;
 
-use OpenApi\Annotations\OpenApi;
-use OpenApi\Annotations\Server;
-use Psr\Container\ContainerInterface;
+use InvalidArgumentException;
+use Nelmio\ApiDocBundle\Render\RenderOpenApi;
 use Symfony\Component\HttpFoundation\Request;
 use Symfony\Component\HttpFoundation\Response;
 use Symfony\Component\HttpKernel\Exception\BadRequestHttpException;
 
 final class YamlDocumentationController
 {
-    private $generatorLocator;
+    /**
+     * @var RenderOpenApi
+     */
+    private $renderOpenApi;
 
-    public function __construct(ContainerInterface $generatorLocator)
+    public function __construct(RenderOpenApi $renderOpenApi)
     {
-        $this->generatorLocator = $generatorLocator;
+        $this->renderOpenApi = $renderOpenApi;
     }
 
     public function __invoke(Request $request, $area = 'default')
     {
-        if (!$this->generatorLocator->has($area)) {
+        try {
+            $response = new Response(
+                $this->renderOpenApi->render(RenderOpenApi::YAML, $area, [
+                    'server_url' => '' !== $request->getBaseUrl() ? $request->getSchemeAndHttpHost().$request->getBaseUrl() : null,
+                ]),
+                Response::HTTP_OK,
+                ['Content-Type' => 'text/x-yaml']
+            );
+
+            return $response->setCharset('UTF-8');
+        } catch (InvalidArgumentException $e) {
             throw new BadRequestHttpException(sprintf('Area "%s" is not supported as it isn\'t defined in config.', $area));
         }
-
-        /** @var OpenApi $spec */
-        $spec = $this->generatorLocator->get($area)->generate();
-
-        if ('' !== $request->getBaseUrl()) {
-            $spec->servers = [new Server(['url' => $request->getSchemeAndHttpHost().$request->getBaseUrl()])];
-        }
-
-        return new Response($spec->toYaml(), 200, [
-            'Content-Type' => 'text/x-yaml',
-        ]);
     }
 }

Render/RenderOpenApi.php

@@ -19,6 +19,7 @@ class RenderOpenApi
 {
     public const HTML = 'html';
     public const JSON = 'json';
+    public const YAML = 'yaml';
 
     /** @var ContainerInterface */
     private $generatorLocator;

Render/Yaml/YamlOpenApiRenderer.php

@@ -0,0 +1,38 @@
+<?php
+
+/*
+ * This file is part of the NelmioApiDocBundle package.
+ *
+ * (c) Nelmio
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Nelmio\ApiDocBundle\Render\Yaml;
+
+use Nelmio\ApiDocBundle\Render\OpenApiRenderer;
+use Nelmio\ApiDocBundle\Render\RenderOpenApi;
+use OpenApi\Annotations\OpenApi;
+use OpenApi\Annotations\Server;
+
+class YamlOpenApiRenderer implements OpenApiRenderer
+{
+    public function getFormat(): string
+    {
+        return RenderOpenApi::YAML;
+    }
+
+    public function render(OpenApi $spec, array $options = []): string
+    {
+        $options += [
+            'server_url' => null,
+        ];
+
+        if ($options['server_url']) {
+            $spec->servers = [new Server(['url' => $options['server_url']])];
+        }
+
+        return $spec->toYaml();
+    }
+}

Resources/config/services.xml

@@ -22,7 +22,7 @@
         </service>
 
         <service id="nelmio_api_doc.controller.swagger_yaml" class="Nelmio\ApiDocBundle\Controller\YamlDocumentationController" public="true">
-            <argument type="service" id="nelmio_api_doc.generator_locator" />
+            <argument type="service" id="nelmio_api_doc.render_docs" />
         </service>
 
         <!-- Render -->
@@ -30,6 +30,7 @@
             <argument type="service" id="nelmio_api_doc.generator_locator" />
             <argument type="service" id="nelmio_api_doc.render_docs.html" />
             <argument type="service" id="nelmio_api_doc.render_docs.json" />
+            <argument type="service" id="nelmio_api_doc.render_docs.yaml" />
         </service>
         <service id="nelmio_api_doc.render_docs.html" class="Nelmio\ApiDocBundle\Render\Html\HtmlOpenApiRenderer" public="false">
             <argument type="service" id="twig" />
@@ -40,6 +41,8 @@
         </service>
         <service id="nelmio_api_doc.render_docs.json" class="Nelmio\ApiDocBundle\Render\Json\JsonOpenApiRenderer" public="false">
         </service>
+        <service id="nelmio_api_doc.render_docs.yaml" class="Nelmio\ApiDocBundle\Render\Yaml\YamlOpenApiRenderer" public="false">
+        </service>
 
         <!-- Swagger Spec Generator -->
         <service id="nelmio_api_doc.generator" alias="nelmio_api_doc.generator.default" public="true" />

Resources/doc/commands.rst

@@ -1,7 +1,7 @@
 Commands
 ========
 
-A command is provided in order to dump the documentation in ``json`` or ``html``.
+A command is provided in order to dump the documentation in ``json``, ``yaml`` or ``html``.
 
 .. code-block:: bash
 

Tests/Command/DumpCommandTest.php

@@ -38,6 +38,14 @@ class DumpCommandTest extends WebTestCase
         ];
     }
 
+    public function testYaml()
+    {
+        $output = $this->executeDumpCommand([
+            '--format' => 'yaml',
+        ]);
+        self::assertStringContainsString($this->getOpenApiDefinition()->toYaml(), $output);
+    }
+
     /** @dataProvider provideAssetsMode */
     public function testHtml($htmlConfig, string $expectedHtml)
     {