--- /dev/null
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * 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\Input\InputArgument;
+use Symfony\Component\Console\Input\InputOption;
+use Symfony\Component\Console\Input\InputInterface;
+use Symfony\Component\Console\Output\OutputInterface;
+use Symfony\Component\Console\Output\Output;
+use Symfony\Component\Console\Command\Command;
+use Symfony\Component\Console\Input\InputDefinition;
+
+/**
+ * ListCommand displays the list of all available commands for the application.
+ *
+ * @author Fabien Potencier <fabien@symfony.com>
+ */
+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 as XML by using the <comment>--xml</comment> option:
+
+ <info>php %command.full_name% --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}
+ */
+ protected function getNativeDefinition()
+ {
+ return $this->createDefinition();
+ }
+
+ /**
+ * {@inheritdoc}
+ */
+ protected function execute(InputInterface $input, OutputInterface $output)
+ {
+ if ($input->getOption('xml')) {
+ $output->writeln($this->getApplication()->asXml($input->getArgument('namespace')), OutputInterface::OUTPUT_RAW);
+ } else {
+ $output->writeln($this->getApplication()->asText($input->getArgument('namespace'), $input->getOption('raw')));
+ }
+ }
+
+ private function createDefinition()
+ {
+ return new InputDefinition(array(
+ new InputArgument('namespace', InputArgument::OPTIONAL, 'The namespace name'),
+ new InputOption('xml', null, InputOption::VALUE_NONE, 'To output help as XML'),
+ new InputOption('raw', null, InputOption::VALUE_NONE, 'To output raw command list'),
+ ));
+ }
+}