85 lines
2.2 KiB
PHP
85 lines
2.2 KiB
PHP
<?php
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/*
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* This file is part of the Symfony package.
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*
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* (c) Fabien Potencier <fabien@symfony.com>
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*
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* For the full copyright and license information, please view the LICENSE
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* file that was distributed with this source code.
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*/
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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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* HelpCommand displays the help for a given command.
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*
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* @author Fabien Potencier <fabien@symfony.com>
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*/
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class HelpCommand extends Command
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{
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private $command;
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/**
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* {@inheritdoc}
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*/
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protected function configure()
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{
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$this->ignoreValidationErrors();
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$this
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->setName('help')
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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::VALUE_NONE, 'To output help as XML'),
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))
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->setDescription('Displays help for a command')
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->setHelp(<<<EOF
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The <info>%command.name%</info> command displays help for a given command:
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<info>php %command.full_name% 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>php %command.full_name% --xml list</info>
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EOF
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)
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;
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}
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/**
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* Sets the command
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*
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* @param Command $command The command to set
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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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* {@inheritdoc}
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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 = $this->getApplication()->get($input->getArgument('command_name'));
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}
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if ($input->getOption('xml')) {
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$output->writeln($this->command->asXml(), OutputInterface::OUTPUT_RAW);
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} else {
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$output->writeln($this->command->asText());
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}
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$this->command = null;
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}
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}
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