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<?php
 /*
 * This file is part of the Symfony package.
 *
 * (c) Fabien Potencier <[email protected]>
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */
 
 namespace Symfony\Component\Console\Command;
 
 use Symfony\Component\Console\Helper\DescriptorHelper;
 use Symfony\Component\Console\Input\InputArgument;
 use Symfony\Component\Console\Input\InputOption;
 use Symfony\Component\Console\Input\InputInterface;
 use Symfony\Component\Console\Output\OutputInterface;
 use Symfony\Component\Console\Input\InputDefinition;
 
 /**
 * ListCommand displays the list of all available commands for the application.
 *
 * @author Fabien Potencier <[email protected]>
 */
 class ListCommand extends Command
 {
 /**
 * {@inheritdoc}
 */
 protected function configure()
 {
 $this
 ->setName('list')
 ->setDefinition($this->createDefinition())
 ->setDescription('Lists commands')
 ->setHelp(<<<'EOF'
 The <info>%command.name%</info> command lists all commands:
 
 <info>php %command.full_name%</info>
 
 You can also display the commands for a specific namespace:
 
 <info>php %command.full_name% test</info>
 
 You can also output the information in other formats by using the <comment>--format</comment> option:
 
 <info>php %command.full_name% --format=xml</info>
 
 It's also possible to get raw list of commands (useful for embedding command runner):
 
 <info>php %command.full_name% --raw</info>
 EOF
 )
 ;
 }
 
 /**
 * {@inheritdoc}
 */
 public function getNativeDefinition()
 {
 return $this->createDefinition();
 }
 
 /**
 * {@inheritdoc}
 */
 protected function execute(InputInterface $input, OutputInterface $output)
 {
 $helper = new DescriptorHelper();
 $helper->describe($output, $this->getApplication(), array(
 'format' => $input->getOption('format'),
 'raw_text' => $input->getOption('raw'),
 'namespace' => $input->getArgument('namespace'),
 ));
 }
 
 /**
 * {@inheritdoc}
 */
 private function createDefinition()
 {
 return new InputDefinition(array(
 new InputArgument('namespace', InputArgument::OPTIONAL, 'The namespace name'),
 new InputOption('raw', null, InputOption::VALUE_NONE, 'To output raw command list'),
 new InputOption('format', null, InputOption::VALUE_REQUIRED, 'The output format (txt, xml, json, or md)', 'txt'),
 ));
 }
 }
 
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