Support YAML output from SwaggerCommand with --yaml

Author: dkarlovi

.travis.yml

@@ -54,5 +54,6 @@ script:
   - if [[ $APP_ENV != 'postgres' ]]; then vendor/bin/behat --format=progress; fi
   - if [[ $APP_ENV = 'postgres' ]]; then vendor/bin/behat --tags='~@sqlite' --format=progress; fi
   - tests/Fixtures/app/console api:swagger:export > swagger.json && swagger-cli validate swagger.json && rm swagger.json
+  - tests/Fixtures/app/console api:swagger:export --yaml > swagger.yaml && swagger-cli validate --no-schema swagger.yaml && rm swagger.yaml
   - if [[ $lint = 1 ]]; then php php-cs-fixer.phar fix --dry-run --diff --no-ansi; fi
   - if [[ $lint = 1 ]]; then phpstan analyse -c phpstan.neon -l5 --ansi src tests; fi

src/Bridge/Symfony/Bundle/Command/SwaggerCommand.php

@@ -66,11 +66,7 @@ protected function execute(InputInterface $input, OutputInterface $output)
     {
         $documentation = new Documentation($this->resourceNameCollectionFactory->create(), $this->apiTitle, $this->apiDescription, $this->apiVersion, $this->apiFormats);
         $data = $this->documentationNormalizer->normalize($documentation);
-        if ($input->getOption('yaml')) {
-            $content = Yaml::dump($data);
-        } else {
-            $content = json_encode($data, JSON_PRETTY_PRINT);
-        }
+        $content = $input->getOption('yaml') ? Yaml::dump($data) : json_encode($data, JSON_PRETTY_PRINT);
         $output->writeln($content);
     }
 }