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- <?php
- namespace Symfony\Component\Console\Command;
- use Symfony\Component\Console\Helper\DescriptorHelper;
- use Symfony\Component\Console\Input\InputArgument;
- use Symfony\Component\Console\Input\InputInterface;
- use Symfony\Component\Console\Input\InputOption;
- use Symfony\Component\Console\Output\OutputInterface;
- class HelpCommand extends Command
- {
- private $command;
-
- protected function configure()
- {
- $this->ignoreValidationErrors();
- $this
- ->setName('help')
- ->setDefinition(array(
- new InputArgument('command_name', InputArgument::OPTIONAL, 'The command name', 'help'),
- new InputOption('xml', null, InputOption::VALUE_NONE, 'To output help as XML'),
- new InputOption('format', null, InputOption::VALUE_REQUIRED, 'The output format (txt, xml, json, or md)', 'txt'),
- new InputOption('raw', null, InputOption::VALUE_NONE, 'To output raw command help'),
- ))
- ->setDescription('Displays help for a command')
- ->setHelp(<<<'EOF'
- The <info>%command.name%</info> command displays help for a given command:
- <info>php %command.full_name% list</info>
- You can also output the help in other formats by using the <comment>--format</comment> option:
- <info>php %command.full_name% --format=xml list</info>
- To display the list of available commands, please use the <info>list</info> command.
- EOF
- )
- ;
- }
- public function setCommand(Command $command)
- {
- $this->command = $command;
- }
-
- protected function execute(InputInterface $input, OutputInterface $output)
- {
- if (null === $this->command) {
- $this->command = $this->getApplication()->find($input->getArgument('command_name'));
- }
- if ($input->getOption('xml')) {
- @trigger_error('The --xml option was deprecated in version 2.7 and will be removed in version 3.0. Use the --format option instead.', E_USER_DEPRECATED);
- $input->setOption('format', 'xml');
- }
- $helper = new DescriptorHelper();
- $helper->describe($output, $this->command, array(
- 'format' => $input->getOption('format'),
- 'raw_text' => $input->getOption('raw'),
- ));
- $this->command = null;
- }
- }
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