100 lines
3.0 KiB
PHP
100 lines
3.0 KiB
PHP
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<?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\Completion\CompletionInput;
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use Symfony\Component\Console\Completion\CompletionSuggestions;
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use Symfony\Component\Console\Descriptor\ApplicationDescription;
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use Symfony\Component\Console\Helper\DescriptorHelper;
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use Symfony\Component\Console\Input\InputArgument;
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use Symfony\Component\Console\Input\InputInterface;
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use Symfony\Component\Console\Input\InputOption;
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use Symfony\Component\Console\Output\OutputInterface;
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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([
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new InputArgument('command_name', InputArgument::OPTIONAL, 'The command name', 'help'),
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new InputOption('format', null, InputOption::VALUE_REQUIRED, 'The output format (txt, xml, json, or md)', 'txt'),
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new InputOption('raw', null, InputOption::VALUE_NONE, 'To output raw command help'),
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])
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->setDescription('Display 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>%command.full_name% list</info>
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You can also output the help in other formats by using the <comment>--format</comment> option:
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<info>%command.full_name% --format=xml list</info>
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To display the list of available commands, please use the <info>list</info> command.
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EOF
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)
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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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* {@inheritdoc}
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*/
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protected function execute(InputInterface $input, OutputInterface $output): int
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{
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$this->command ??= $this->getApplication()->find($input->getArgument('command_name'));
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$helper = new DescriptorHelper();
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$helper->describe($output, $this->command, [
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'format' => $input->getOption('format'),
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'raw_text' => $input->getOption('raw'),
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]);
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unset($this->command);
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return 0;
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}
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public function complete(CompletionInput $input, CompletionSuggestions $suggestions): void
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{
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if ($input->mustSuggestArgumentValuesFor('command_name')) {
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$descriptor = new ApplicationDescription($this->getApplication());
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$suggestions->suggestValues(array_keys($descriptor->getCommands()));
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return;
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}
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if ($input->mustSuggestOptionValuesFor('format')) {
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$helper = new DescriptorHelper();
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$suggestions->suggestValues($helper->getFormats());
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}
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}
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}
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