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Add a command for printing a SDL schema (#2600)
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‎behat.yml.dist

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@@ -2,6 +2,7 @@ default:
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suites:
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default:
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contexts:
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- 'CommandContext'
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- 'DoctrineContext':
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doctrine: '@doctrine'
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- 'HttpHeaderContext'
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tags: '~@postgres&&~@mongodb&&~@elasticsearch'
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postgres:
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contexts:
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- 'CommandContext'
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- 'DoctrineContext':
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doctrine: '@doctrine'
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- 'HttpHeaderContext'
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tags: '~@sqlite&&~@mongodb&&~@elasticsearch'
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mongodb:
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contexts:
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- 'CommandContext'
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- 'DoctrineContext':
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doctrine: '@doctrine_mongodb'
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- 'HttpHeaderContext'
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suites:
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default:
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contexts:
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- 'CommandContext'
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- 'DoctrineContext':
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doctrine: '@doctrine'
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- 'HttpHeaderContext'

‎features/bootstrap/CommandContext.php

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<?php
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/*
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* This file is part of the API Platform project.
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*
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* (c) Kévin Dunglas <[email protected]>
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*
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* For the full copyright and license information, please view the LICENSE
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* file that was distributed with this source code.
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*/
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declare(strict_types=1);
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use Behat\Gherkin\Node\PyStringNode;
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use Behat\Gherkin\Node\TableNode;
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use Behat\Symfony2Extension\Context\KernelAwareContext;
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use PHPUnit\Framework\Assert;
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use Symfony\Bundle\FrameworkBundle\Console\Application;
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use Symfony\Component\Console\Command\Command;
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use Symfony\Component\Console\Tester\CommandTester;
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use Symfony\Component\HttpKernel\KernelInterface;
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/**
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* Context for Symfony commands.
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*
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* @author Alan Poulain <[email protected]>
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*/
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final class CommandContext implements KernelAwareContext
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{
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/**
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* @var KernelInterface
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*/
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private $kernel;
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/**
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* @var Application
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*/
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private $application;
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/**
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* @var CommandTester
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*/
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private $commandTester;
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/**
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* @When I run the command :command
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*/
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public function iRunTheCommand(string $command): void
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{
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$command = $this->getApplication()->find($command);
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$this->getCommandTester($command)->execute([]);
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}
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/**
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* @When I run the command :command with options:
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*/
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public function iRunTheCommandWithOptions(string $command, TableNode $options): void
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{
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$command = $this->getApplication()->find($command);
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$this->getCommandTester($command)->execute($options->getRowsHash());
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}
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/**
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* @Then the command output should be:
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*/
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public function theCommandOutputShouldBe(PyStringNode $expectedOutput): void
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{
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Assert::assertEquals($expectedOutput->getRaw(), $this->commandTester->getDisplay());
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}
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/**
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* @Then the command output should contain:
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*/
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public function theCommandOutputShouldContain(PyStringNode $expectedOutput): void
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{
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$expectedOutput = str_replace('###', '"""', $expectedOutput->getRaw());
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Assert::assertContains($expectedOutput, $this->commandTester->getDisplay());
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}
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public function setKernel(KernelInterface $kernel): void
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{
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$this->kernel = $kernel;
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}
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public function getApplication(): Application
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{
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if (null !== $this->application) {
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return $this->application;
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}
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$this->application = new Application($this->kernel);
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return $this->application;
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}
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private function getCommandTester(Command $command): CommandTester
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{
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$this->commandTester = new CommandTester($command);
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return $this->commandTester;
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}
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}

‎features/graphql/schema.feature

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Feature: GraphQL schema-related features
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@createSchema
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Scenario: Export the GraphQL schema in SDL
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When I run the command "api:graphql:export"
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Then the command output should contain:
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"""
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###Dummy Friend.###
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type DummyFriend implements Node {
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id: ID!
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###The id###
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_id: Int!
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###The dummy name###
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name: String!
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}
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###Connection for DummyFriend.###
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type DummyFriendConnection {
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edges: [DummyFriendEdge]
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pageInfo: DummyFriendPageInfo!
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totalCount: Int!
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}
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###Edge of DummyFriend.###
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type DummyFriendEdge {
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node: DummyFriend
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cursor: String!
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}
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###Information about the current page.###
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type DummyFriendPageInfo {
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endCursor: String
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startCursor: String
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hasNextPage: Boolean!
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hasPreviousPage: Boolean!
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}
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"""
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Scenario: Export the GraphQL schema in SDL with comment descriptions
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When I run the command "api:graphql:export" with options:
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| --comment-descriptions | true |
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Then the command output should contain:
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"""
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# Dummy Friend.
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type DummyFriend implements Node {
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id: ID!
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# The id
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_id: Int!
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# The dummy name
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name: String!
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}
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# Connection for DummyFriend.
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type DummyFriendConnection {
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edges: [DummyFriendEdge]
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pageInfo: DummyFriendPageInfo!
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totalCount: Int!
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}
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# Edge of DummyFriend.
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type DummyFriendEdge {
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node: DummyFriend
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cursor: String!
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}
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# Information about the current page.
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type DummyFriendPageInfo {
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endCursor: String
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startCursor: String
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hasNextPage: Boolean!
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hasPreviousPage: Boolean!
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}
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"""

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

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<?php
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/*
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* This file is part of the API Platform project.
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*
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* (c) Kévin Dunglas <[email protected]>
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*
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* For the full copyright and license information, please view the LICENSE
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* file that was distributed with this source code.
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*/
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declare(strict_types=1);
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namespace ApiPlatform\Core\Bridge\Symfony\Bundle\Command;
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use ApiPlatform\Core\GraphQl\Type\SchemaBuilder;
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use GraphQL\Utils\SchemaPrinter;
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use Symfony\Component\Console\Command\Command;
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use Symfony\Component\Console\Input\InputInterface;
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use Symfony\Component\Console\Input\InputOption;
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use Symfony\Component\Console\Output\OutputInterface;
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use Symfony\Component\Console\Style\SymfonyStyle;
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/**
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* Export the GraphQL schema in Schema Definition Language (SDL).
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*
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* @experimental
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*
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* @author Alan Poulain <[email protected]>
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*/
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class GraphQlExportCommand extends Command
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{
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protected static $defaultName = 'api:graphql:export';
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private $schemaBuilder;
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public function __construct(SchemaBuilder $schemaBuilder)
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{
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$this->schemaBuilder = $schemaBuilder;
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parent::__construct();
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}
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/**
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* {@inheritdoc}
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*/
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protected function configure(): void
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{
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$this
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->setDescription('Export the GraphQL schema in Schema Definition Language (SDL)')
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->addOption('comment-descriptions', null, InputOption::VALUE_NONE, 'Use preceding comments as the description')
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->addOption('output', 'o', InputOption::VALUE_REQUIRED, 'Write output to file')
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;
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}
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/**
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* {@inheritdoc}
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*/
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protected function execute(InputInterface $input, OutputInterface $output)
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{
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$io = new SymfonyStyle($input, $output);
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$options = [];
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if ($input->getOption('comment-descriptions')) {
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$options['commentDescriptions'] = true;
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}
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$schemaExport = SchemaPrinter::doPrint($this->schemaBuilder->getSchema(), $options);
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$filename = $input->getOption('output');
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if (\is_string($filename)) {
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file_put_contents($filename, $schemaExport);
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$io->success(sprintf('Data written to %s.', $filename));
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} else {
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$output->writeln($schemaExport);
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}
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return 0;
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}
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}

‎src/Bridge/Symfony/Bundle/Resources/config/graphql.xml

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<!-- After the DataUriNormalizer but before the ObjectNormalizer -->
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<tag name="serializer.normalizer" priority="-924" />
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</service>
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<!-- Command -->
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<service id="api_platform.graphql.command.export_command" class="ApiPlatform\Core\Bridge\Symfony\Bundle\Command\GraphQlExportCommand">
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<argument type="service" id="api_platform.graphql.schema_builder" />
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<tag name="console.command" />
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</service>
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</services>
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</container>

‎tests/Bridge/Symfony/Bundle/DependencyInjection/ApiPlatformExtensionTest.php

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'api_platform.graphql.types_factory',
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'api_platform.graphql.normalizer.item',
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'api_platform.graphql.normalizer.item.non_resource',
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'api_platform.graphql.command.export_command',
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'api_platform.hal.encoder',
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'api_platform.hal.normalizer.collection',
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'api_platform.hal.normalizer.entrypoint',

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