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typo3/sysext/extbase/Classes/Command/HelpCommand.php

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+<?php
+namespace TYPO3\CMS\Extbase\Command;
+
+/*
+ * This file is part of the TYPO3 CMS project.
+ *
+ * It is free software; you can redistribute it and/or modify it under
+ * the terms of the GNU General Public License, either version 2
+ * of the License, or any later version.
+ *
+ * For the full copyright and license information, please read the
+ * LICENSE.txt file that was distributed with this source code.
+ *
+ * The TYPO3 project - inspiring people to share!
+ */
+
+use Symfony\Component\Console\Command\Command;
+use Symfony\Component\Console\Input\InputInterface;
+use Symfony\Component\Console\Output\OutputInterface;
+use TYPO3\CMS\Core\Utility\GeneralUtility;
+use TYPO3\CMS\Extbase\Core\Bootstrap;
+
+/**
+ * Extends the help command of symfony to show the specific help for Extbase commands
+ * @deprecated since TYPO3 v9, will be removed in TYPO3 v10.0. Use symfony/console commands instead.
+ */
+class HelpCommand extends \Symfony\Component\Console\Command\HelpCommand
+{
+    /**
+     * This needs to be re-set as the parent command has this property declared as "private" as well.
+     *
+     * @var Command
+     */
+    private $command;
+
+    /**
+     * {@inheritdoc}
+     */
+    protected function configure()
+    {
+        parent::configure();
+        $this->setAliases([]);
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    protected function execute(InputInterface $input, OutputInterface $output)
+    {
+        if (null === $this->command) {
+            $this->command = $this->getApplication()->find($input->getArgument('command_name'));
+        }
+
+        // Extbase help was explicitly called
+        if ($input->getArgument('command') === 'extbase:help' || $input->getArgument('command') === 'extbase:help:help') {
+            $_SERVER['argv'][1] = 'extbase:help:help';
+            $bootstrap = GeneralUtility::makeInstance(Bootstrap::class);
+            $bootstrap->run('', []);
+        } elseif ($this->command instanceof ExtbaseCommand) {
+            // An extbase command was originally called, but is now required to show the help information
+            // Ugly hack to modify 'argv' so the help command for a specific command is shown
+            $args = [$_SERVER['argv'][0], 'help'];
+            foreach ($_SERVER['argv'] as $k => $value) {
+                if ($k === 0 || $value === '--help' || $value === '-h') {
+                    continue;
+                }
+                $args[] = $value;
+            }
+            $_SERVER['argv'] = $args;
+
+            // run Extbase bootstrap
+            $bootstrap = GeneralUtility::makeInstance(Bootstrap::class);
+            $bootstrap->run('', []);
+        } else {
+            // Any other symfony command should just show up the regular info
+            parent::execute($input, $output);
+        }
+    }
+}