78 lines
2.1 KiB
PHP
78 lines
2.1 KiB
PHP
<?php
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namespace Symfony\Component\Console\Command;
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use Symfony\Component\Console\Input\InputArgument;
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use Symfony\Component\Console\Input\InputOption;
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use Symfony\Component\Console\Input\InputInterface;
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use Symfony\Component\Console\Output\OutputInterface;
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use Symfony\Component\Console\Output\Output;
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use Symfony\Component\Console\Command\Command;
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/*
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* This file is part of the Symfony framework.
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*
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* (c) Fabien Potencier <fabien.potencier@symfony-project.com>
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*
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* This source file is subject to the MIT license that is bundled
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* with this source code in the file LICENSE.
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*/
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/**
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* HelpCommand displays the help for a given command.
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*
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* @author Fabien Potencier <fabien.potencier@symfony-project.com>
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*/
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class HelpCommand extends Command
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{
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protected $command;
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/**
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* @see Command
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*/
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protected function configure()
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{
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$this->ignoreValidationErrors = true;
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$this
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->setDefinition(array(
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new InputArgument('command_name', InputArgument::OPTIONAL, 'The command name', 'help'),
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new InputOption('xml', null, InputOption::PARAMETER_NONE, 'To output help as XML'),
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))
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->setName('help')
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->setAliases(array('?'))
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->setDescription('Displays help for a command')
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->setHelp(<<<EOF
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The <info>help</info> command displays help for a given command:
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<info>./symfony help list</info>
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You can also output the help as XML by using the <comment>--xml</comment> option:
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<info>./symfony help --xml list</info>
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EOF
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);
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}
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public function setCommand(Command $command)
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{
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$this->command = $command;
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}
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/**
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* @see Command
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*/
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protected function execute(InputInterface $input, OutputInterface $output)
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{
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if (null === $this->command) {
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$this->command = $this->application->getCommand($input->getArgument('command_name'));
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}
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if ($input->getOption('xml')) {
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$output->writeln($this->command->asXml(), Output::OUTPUT_RAW);
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} else {
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$output->writeln($this->command->asText());
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}
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}
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}
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