diff -r 000000000000 -r 7f95f8617b0b vendor/symfony/src/Symfony/Component/Console/Command/HelpCommand.php
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/vendor/symfony/src/Symfony/Component/Console/Command/HelpCommand.php	Sat Sep 24 15:40:41 2011 +0200
@@ -0,0 +1,81 @@
+<?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;
+
+/**
+ * HelpCommand displays the help for a given command.
+ *
+ * @author Fabien Potencier <fabien@symfony.com>
+ */
+class HelpCommand extends Command
+{
+    private $command;
+
+    /**
+     * {@inheritdoc}
+     */
+    protected function configure()
+    {
+        $this->ignoreValidationErrors = true;
+
+        $this
+            ->setDefinition(array(
+                new InputArgument('command_name', InputArgument::OPTIONAL, 'The command name', 'help'),
+                new InputOption('xml', null, InputOption::VALUE_NONE, 'To output help as XML'),
+            ))
+            ->setName('help')
+            ->setDescription('Displays help for a command')
+            ->setHelp(<<<EOF
+The <info>help</info> command displays help for a given command:
+
+  <info>php app/console help list</info>
+
+You can also output the help as XML by using the <comment>--xml</comment> option:
+
+  <info>php app/console help --xml list</info>
+EOF
+            );
+    }
+
+    /**
+     * Sets the command
+     *
+     * @param Command $command The command to set
+     */
+    public function setCommand(Command $command)
+    {
+        $this->command = $command;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    protected function execute(InputInterface $input, OutputInterface $output)
+    {
+        if (null === $this->command) {
+            $this->command = $this->getApplication()->get($input->getArgument('command_name'));
+        }
+
+        if ($input->getOption('xml')) {
+            $output->writeln($this->command->asXml(), OutputInterface::OUTPUT_RAW);
+        } else {
+            $output->writeln($this->command->asText());
+        }
+    }
+}