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<?php declare(strict_types=1);

/*
 * This file is part of Composer.
 *
 * (c) Nils Adermann <naderman@naderman.de>
 *     Jordi Boggiano <j.boggiano@seld.be>
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */

namespace Composer\Console;

use Composer\Installer;
use Composer\IO\NullIO;
use Composer\Util\Filesystem;
use Composer\Util\Platform;
use Composer\Util\Silencer;
use LogicException;
use RuntimeException;
use Seld\Signal\SignalHandler;
use Symfony\Component\Console\Application as BaseApplication;
use Symfony\Component\Console\Exception\CommandNotFoundException;
use Symfony\Component\Console\Helper\HelperSet;
use Symfony\Component\Console\Helper\QuestionHelper;
use Symfony\Component\Console\Input\InputDefinition;
use Symfony\Component\Console\Input\InputInterface;
use Symfony\Component\Console\Input\InputOption;
use Symfony\Component\Console\Output\ConsoleOutputInterface;
use Symfony\Component\Console\Output\OutputInterface;
use Seld\JsonLint\ParsingException;
use Composer\Command;
use Composer\Composer;
use Composer\Factory;
use Composer\Downloader\TransportException;
use Composer\IO\IOInterface;
use Composer\IO\ConsoleIO;
use Composer\Json\JsonValidationException;
use Composer\Util\ErrorHandler;
use Composer\Util\HttpDownloader;
use Composer\EventDispatcher\ScriptExecutionException;
use Composer\Exception\NoSslException;
use Composer\XdebugHandler\XdebugHandler;
use Symfony\Component\Process\Exception\ProcessTimedOutException;
use Composer\Util\Http\ProxyManager;

/**
 * The console application that handles the commands
 *
 * @author Ryan Weaver <ryan@knplabs.com>
 * @author Jordi Boggiano <j.boggiano@seld.be>
 * @author François Pluchino <francois.pluchino@opendisplay.com>
 */
class Application extends BaseApplication
{
    /**
     * @var ?Composer
     */
    protected $composer;

    /**
     * @var IOInterface
     */
    protected $io;

    /** @var string */
    private static $logo = '   ______
  / ____/___  ____ ___  ____  ____  ________  _____
 / /   / __ \/ __ `__ \/ __ \/ __ \/ ___/ _ \/ ___/
/ /___/ /_/ / / / / / / /_/ / /_/ (__  )  __/ /
\____/\____/_/ /_/ /_/ .___/\____/____/\___/_/
                    /_/
';

    /** @var bool */
    private $hasPluginCommands = false;
    /** @var bool */
    private $disablePluginsByDefault = false;
    /** @var bool */
    private $disableScriptsByDefault = false;

    /**
     * @var string|false Store the initial working directory at startup time
     */
    private $initialWorkingDirectory;

    /** @var SignalHandler */
    private $signalHandler;

    public function __construct(string $name = 'Composer', string $version = '')
    {
        if (method_exists($this, 'setCatchErrors')) {
            $this->setCatchErrors(true);
        }

        static $shutdownRegistered = false;
        if ($version === '') {
            $version = Composer::getVersion();
        }
        if (function_exists('ini_set') && extension_loaded('xdebug')) {
            ini_set('xdebug.show_exception_trace', '0');
            ini_set('xdebug.scream', '0');
        }

        if (function_exists('date_default_timezone_set') && function_exists('date_default_timezone_get')) {
            date_default_timezone_set(Silencer::call('date_default_timezone_get'));
        }

        $this->io = new NullIO();

        $this->signalHandler = SignalHandler::create([SignalHandler::SIGINT, SignalHandler::SIGTERM, SignalHandler::SIGHUP], function (string $signal, SignalHandler $handler) {
            $this->io->writeError('Received '.$signal.', aborting', true, IOInterface::DEBUG);

            $handler->exitWithLastSignal();
        });

        if (!$shutdownRegistered) {
            $shutdownRegistered = true;

            register_shutdown_function(static function (): void {
                $lastError = error_get_last();

                if ($lastError && $lastError['message'] &&
                   (strpos($lastError['message'], 'Allowed memory') !== false /*Zend PHP out of memory error*/ ||
                    strpos($lastError['message'], 'exceeded memory') !== false /*HHVM out of memory errors*/)) {
                    echo "\n". 'Check https://getcomposer.org/doc/articles/troubleshooting.md#memory-limit-errors for more info on how to handle out of memory errors.';
                }
            });
        }

        $this->initialWorkingDirectory = getcwd();

        parent::__construct($name, $version);
    }

    public function __destruct()
    {
        $this->signalHandler->unregister();
    }

    public function run(?InputInterface $input = null, ?OutputInterface $output = null): int
    {
        if (null === $output) {
            $output = Factory::createOutput();
        }

        return parent::run($input, $output);
    }

    public function doRun(InputInterface $input, OutputInterface $output): int
    {
        $this->disablePluginsByDefault = $input->hasParameterOption('--no-plugins');
        $this->disableScriptsByDefault = $input->hasParameterOption('--no-scripts');

        $stdin = defined('STDIN') ? STDIN : fopen('php://stdin', 'r');
        if (Platform::getEnv('COMPOSER_TESTS_ARE_RUNNING') !== '1' && (Platform::getEnv('COMPOSER_NO_INTERACTION') || $stdin === false || !Platform::isTty($stdin))) {
            $input->setInteractive(false);
        }

        $io = $this->io = new ConsoleIO($input, $output, new HelperSet([
            new QuestionHelper(),
        ]));

        // Register error handler again to pass it the IO instance
        ErrorHandler::register($io);

        if ($input->hasParameterOption('--no-cache')) {
            $io->writeError('Disabling cache usage', true, IOInterface::DEBUG);
            Platform::putEnv('COMPOSER_CACHE_DIR', Platform::isWindows() ? 'nul' : '/dev/null');
        }

        // switch working dir
        $newWorkDir = $this->getNewWorkingDir($input);
        if (null !== $newWorkDir) {
            $oldWorkingDir = Platform::getCwd(true);
            chdir($newWorkDir);
            $this->initialWorkingDirectory = $newWorkDir;
            $cwd = Platform::getCwd(true);
            $io->writeError('Changed CWD to ' . ($cwd !== '' ? $cwd : $newWorkDir), true, IOInterface::DEBUG);
        }

        // determine command name to be executed without including plugin commands
        $commandName = '';
        if ($name = $this->getCommandName($input)) {
            try {
                $commandName = $this->find($name)->getName();
            } catch (CommandNotFoundException $e) {
                // we'll check command validity again later after plugins are loaded
                $commandName = false;
            } catch (\InvalidArgumentException $e) {
            }
        }

        // prompt user for dir change if no composer.json is present in current dir
        if ($io->isInteractive() && null === $newWorkDir && !in_array($commandName, ['', 'list', 'init', 'about', 'help', 'diagnose', 'self-update', 'global', 'create-project', 'outdated'], true) && !file_exists(Factory::getComposerFile()) && ($useParentDirIfNoJsonAvailable = $this->getUseParentDirConfigValue()) !== false) {
            $dir = dirname(Platform::getCwd(true));
            $home = realpath(Platform::getEnv('HOME') ?: Platform::getEnv('USERPROFILE') ?: '/');

            // abort when we reach the home dir or top of the filesystem
            while (dirname($dir) !== $dir && $dir !== $home) {
                if (file_exists($dir.'/'.Factory::getComposerFile())) {
                    if ($useParentDirIfNoJsonAvailable === true || $io->askConfirmation('<info>No composer.json in current directory, do you want to use the one at '.$dir.'?</info> [<comment>Y,n</comment>]? ')) {
                        if ($useParentDirIfNoJsonAvailable === true) {
                            $io->writeError('<info>No composer.json in current directory, changing working directory to '.$dir.'</info>');
                        } else {
                            $io->writeError('<info>Always want to use the parent dir? Use "composer config --global use-parent-dir true" to change the default.</info>');
                        }
                        $oldWorkingDir = Platform::getCwd(true);
                        chdir($dir);
                    }
                    break;
                }
                $dir = dirname($dir);
            }
        }

        $needsSudoCheck = !Platform::isWindows()
            && function_exists('exec')
            && !Platform::getEnv('COMPOSER_ALLOW_SUPERUSER')
            && (ini_get('open_basedir') || (
                !file_exists('/.dockerenv')
                && !file_exists('/run/.containerenv')
                && !file_exists('/var/run/.containerenv')
            ));
        $isNonAllowedRoot = false;

        // Clobber sudo credentials if COMPOSER_ALLOW_SUPERUSER is not set before loading plugins
        if ($needsSudoCheck) {
            $isNonAllowedRoot = $this->isRunningAsRoot();

            if ($isNonAllowedRoot) {
                if ($uid = (int) Platform::getEnv('SUDO_UID')) {
                    // Silently clobber any sudo credentials on the invoking user to avoid privilege escalations later on
                    // ref. https://github.com/composer/composer/issues/5119
                    Silencer::call('exec', "sudo -u \\#{$uid} sudo -K > /dev/null 2>&1");
                }
            }

            // Silently clobber any remaining sudo leases on the current user as well to avoid privilege escalations
            Silencer::call('exec', 'sudo -K > /dev/null 2>&1');
        }

        // avoid loading plugins/initializing the Composer instance earlier than necessary if no plugin command is needed
        // if showing the version, we never need plugin commands
        $mayNeedPluginCommand = false === $input->hasParameterOption(['--version', '-V'])
            && (
                // not a composer command, so try loading plugin ones
                false === $commandName
                // list command requires plugin commands to show them
                || in_array($commandName, ['', 'list', 'help'], true)
                // autocompletion requires plugin commands but if we are running as root without COMPOSER_ALLOW_SUPERUSER
                // we'd rather not autocomplete plugins than abort autocompletion entirely, so we avoid loading plugins in this case
                || ($commandName === '_complete' && !$isNonAllowedRoot)
            );

        if ($mayNeedPluginCommand && !$this->disablePluginsByDefault && !$this->hasPluginCommands) {
            // at this point plugins are needed, so if we are running as root and it is not allowed we need to prompt
            // if interactive, and abort otherwise
            if ($isNonAllowedRoot) {
                $io->writeError('<warning>Do not run Composer as root/super user! See https://getcomposer.org/root for details</warning>');

                if ($io->isInteractive() && $io->askConfirmation('<info>Continue as root/super user</info> [<comment>yes</comment>]? ')) {
                    // avoid a second prompt later
                    $isNonAllowedRoot = false;
                } else {
                    $io->writeError('<warning>Aborting as no plugin should be loaded if running as super user is not explicitly allowed</warning>');

                    return 1;
                }
            }

            try {
                foreach ($this->getPluginCommands() as $command) {
                    if ($this->has($command->getName())) {
                        $io->writeError('<warning>Plugin command '.$command->getName().' ('.get_class($command).') would override a Composer command and has been skipped</warning>');
                    } else {
                        $this->add($command);
                    }
                }
            } catch (NoSslException $e) {
                // suppress these as they are not relevant at this point
            } catch (ParsingException $e) {
                $details = $e->getDetails();

                $file = realpath(Factory::getComposerFile());

                $line = null;
                if ($details && isset($details['line'])) {
                    $line = $details['line'];
                }

                $ghe = new GithubActionError($this->io);
                $ghe->emit($e->getMessage(), $file, $line);

                throw $e;
            }

            $this->hasPluginCommands = true;
        }

        if (!$this->disablePluginsByDefault && $isNonAllowedRoot && !$io->isInteractive()) {
            $io->writeError('<error>Composer plugins have been disabled for safety in this non-interactive session.</error>');
            $io->writeError('<error>Set COMPOSER_ALLOW_SUPERUSER=1 if you want to allow plugins to run as root/super user.</error>');
            $this->disablePluginsByDefault = true;
        }

        // determine command name to be executed incl plugin commands, and check if it's a proxy command
        $isProxyCommand = false;
        if ($name = $this->getCommandName($input)) {
            try {
                $command = $this->find($name);
                $commandName = $command->getName();
                $isProxyCommand = ($command instanceof Command\BaseCommand && $command->isProxyCommand());
            } catch (\InvalidArgumentException $e) {
            }
        }

        if (!$isProxyCommand) {
            $io->writeError(sprintf(
                'Running %s (%s) with %s on %s',
                Composer::getVersion(),
                Composer::RELEASE_DATE,
                defined('HHVM_VERSION') ? 'HHVM '.HHVM_VERSION : 'PHP '.PHP_VERSION,
                function_exists('php_uname') ? php_uname('s') . ' / ' . php_uname('r') : 'Unknown OS'
            ), true, IOInterface::DEBUG);

            if (PHP_VERSION_ID < 70205) {
                $io->writeError('<warning>Composer supports PHP 7.2.5 and above, you will most likely encounter problems with your PHP '.PHP_VERSION.'. Upgrading is strongly recommended but you can use Composer 2.2.x LTS as a fallback.</warning>');
            }

            if (XdebugHandler::isXdebugActive() && !Platform::getEnv('COMPOSER_DISABLE_XDEBUG_WARN')) {
                $io->writeError('<warning>Composer is operating slower than normal because you have Xdebug enabled. See https://getcomposer.org/xdebug</warning>');
            }

            if (defined('COMPOSER_DEV_WARNING_TIME') && $commandName !== 'self-update' && $commandName !== 'selfupdate' && time() > COMPOSER_DEV_WARNING_TIME) {
                $io->writeError(sprintf('<warning>Warning: This development build of Composer is over 60 days old. It is recommended to update it by running "%s self-update" to get the latest version.</warning>', $_SERVER['PHP_SELF']));
            }

            if ($isNonAllowedRoot) {
                if ($commandName !== 'self-update' && $commandName !== 'selfupdate' && $commandName !== '_complete') {
                    $io->writeError('<warning>Do not run Composer as root/super user! See https://getcomposer.org/root for details</warning>');

                    if ($io->isInteractive()) {
                        if (!$io->askConfirmation('<info>Continue as root/super user</info> [<comment>yes</comment>]? ')) {
                            return 1;
                        }
                    }
                }
            }

            // Check system temp folder for usability as it can cause weird runtime issues otherwise
            Silencer::call(static function () use ($io): void {
                $pid = function_exists('getmypid') ? getmypid() . '-' : '';
                $tempfile = sys_get_temp_dir() . '/temp-' . $pid . md5(microtime());
                if (!(file_put_contents($tempfile, __FILE__) && (file_get_contents($tempfile) === __FILE__) && unlink($tempfile) && !file_exists($tempfile))) {
                    $io->writeError(sprintf('<error>PHP temp directory (%s) does not exist or is not writable to Composer. Set sys_temp_dir in your php.ini</error>', sys_get_temp_dir()));
                }
            });

            // add non-standard scripts as own commands
            $file = Factory::getComposerFile();
            if (is_file($file) && Filesystem::isReadable($file) && is_array($composer = json_decode(file_get_contents($file), true))) {
                if (isset($composer['scripts']) && is_array($composer['scripts'])) {
                    foreach ($composer['scripts'] as $script => $dummy) {
                        if (!defined('Composer\Script\ScriptEvents::'.str_replace('-', '_', strtoupper($script)))) {
                            if ($this->has($script)) {
                                $io->writeError('<warning>A script named '.$script.' would override a Composer command and has been skipped</warning>');
                            } else {
                                $description = null;

                                if (isset($composer['scripts-descriptions'][$script])) {
                                    $description = $composer['scripts-descriptions'][$script];
                                }

                                $aliases = $composer['scripts-aliases'][$script] ?? [];

                                $this->add(new Command\ScriptAliasCommand($script, $description, $aliases));
                            }
                        }
                    }
                }
            }
        }

        try {
            $proxyManager = ProxyManager::getInstance();

            if ($input->hasParameterOption('--profile')) {
                $startTime = microtime(true);
                $this->io->enableDebugging($startTime);
            }

            $result = parent::doRun($input, $output);

            if (true === $input->hasParameterOption(['--version', '-V'], true)) {
                $io->writeError(sprintf('<info>PHP</info> version <comment>%s</comment> (%s)', \PHP_VERSION, \PHP_BINARY));
                $io->writeError('Run the "diagnose" command to get more detailed diagnostics output.');
            }

            // chdir back to $oldWorkingDir if set
            if (isset($oldWorkingDir) && '' !== $oldWorkingDir) {
                Silencer::call('chdir', $oldWorkingDir);
            }

            if (isset($startTime)) {
                $io->writeError('<info>Memory usage: '.round(memory_get_usage() / 1024 / 1024, 2).'MiB (peak: '.round(memory_get_peak_usage() / 1024 / 1024, 2).'MiB), time: '.round(microtime(true) - $startTime, 2).'s');
            }

            if ($proxyManager->needsTransitionWarning()) {
                $io->writeError('');
                $io->writeError('<warning>Composer now requires separate proxy environment variables for HTTP and HTTPS requests.</warning>');
                $io->writeError('<warning>Please set `https_proxy` in addition to your existing proxy environment variables.</warning>');
                $io->writeError('<warning>This fallback (and warning) will be removed in Composer 2.8.0.</warning>');
                $io->writeError('<warning>https://getcomposer.org/doc/faqs/how-to-use-composer-behind-a-proxy.md</warning>');
            }

            return $result;
        } catch (ScriptExecutionException $e) {
            if ($this->getDisablePluginsByDefault() && $this->isRunningAsRoot() && !$this->io->isInteractive()) {
                $io->writeError('<error>Plugins have been disabled automatically as you are running as root, this may be the cause of the script failure.</error>', true, IOInterface::QUIET);
                $io->writeError('<error>See also https://getcomposer.org/root</error>', true, IOInterface::QUIET);
            }

            return $e->getCode();
        } catch (\Throwable $e) {
            $ghe = new GithubActionError($this->io);
            $ghe->emit($e->getMessage());

            $this->hintCommonErrors($e, $output);

            // symfony/console <6.4 does not handle \Error subtypes so we have to renderThrowable ourselves
            // instead of rethrowing those for consumption by the parent class
            // can be removed when Composer supports PHP 8.1+
            if (!method_exists($this, 'setCatchErrors') && !$e instanceof \Exception) {
                if ($output instanceof ConsoleOutputInterface) {
                    $this->renderThrowable($e, $output->getErrorOutput());
                } else {
                    $this->renderThrowable($e, $output);
                }

                return max(1, $e->getCode());
            }

            // override TransportException's code for the purpose of parent::run() using it as process exit code
            // as http error codes are all beyond the 255 range of permitted exit codes
            if ($e instanceof TransportException) {
                $reflProp = new \ReflectionProperty($e, 'code');
                $reflProp->setValue($e, Installer::ERROR_TRANSPORT_EXCEPTION);
            }

            throw $e;
        } finally {
            restore_error_handler();
        }
    }

    /**
     * @throws \RuntimeException
     * @return ?string
     */
    private function getNewWorkingDir(InputInterface $input): ?string
    {
        /** @var string|null $workingDir */
        $workingDir = $input->getParameterOption(['--working-dir', '-d'], null, true);
        if (null !== $workingDir && !is_dir($workingDir)) {
            throw new \RuntimeException('Invalid working directory specified, '.$workingDir.' does not exist.');
        }

        return $workingDir;
    }

    private function hintCommonErrors(\Throwable $exception, OutputInterface $output): void
    {
        $io = $this->getIO();

        if ((get_class($exception) === LogicException::class || $exception instanceof \Error) && $output->getVerbosity() < OutputInterface::VERBOSITY_VERBOSE) {
            $output->setVerbosity(OutputInterface::VERBOSITY_VERBOSE);
        }

        Silencer::suppress();
        try {
            $composer = $this->getComposer(false, true);
            if (null !== $composer && function_exists('disk_free_space')) {
                $config = $composer->getConfig();

                $minSpaceFree = 100 * 1024 * 1024;
                if ((($df = disk_free_space($dir = $config->get('home'))) !== false && $df < $minSpaceFree)
                    || (($df = disk_free_space($dir = $config->get('vendor-dir'))) !== false && $df < $minSpaceFree)
                    || (($df = disk_free_space($dir = sys_get_temp_dir())) !== false && $df < $minSpaceFree)
                ) {
                    $io->writeError('<error>The disk hosting '.$dir.' has less than 100MiB of free space, this may be the cause of the following exception</error>', true, IOInterface::QUIET);
                }
            }
        } catch (\Exception $e) {
        }
        Silencer::restore();

        if ($exception instanceof TransportException && str_contains($exception->getMessage(), 'Unable to use a proxy')) {
            $io->writeError('<error>The following exception indicates your proxy is misconfigured</error>', true, IOInterface::QUIET);
            $io->writeError('<error>Check https://getcomposer.org/doc/faqs/how-to-use-composer-behind-a-proxy.md for details</error>', true, IOInterface::QUIET);
        }

        if (Platform::isWindows() && false !== strpos($exception->getMessage(), 'The system cannot find the path specified')) {
            $io->writeError('<error>The following exception may be caused by a stale entry in your cmd.exe AutoRun</error>', true, IOInterface::QUIET);
            $io->writeError('<error>Check https://getcomposer.org/doc/articles/troubleshooting.md#-the-system-cannot-find-the-path-specified-windows- for details</error>', true, IOInterface::QUIET);
        }

        if (false !== strpos($exception->getMessage(), 'fork failed - Cannot allocate memory')) {
            $io->writeError('<error>The following exception is caused by a lack of memory or swap, or not having swap configured</error>', true, IOInterface::QUIET);
            $io->writeError('<error>Check https://getcomposer.org/doc/articles/troubleshooting.md#proc-open-fork-failed-errors for details</error>', true, IOInterface::QUIET);
        }

        if ($exception instanceof ProcessTimedOutException) {
            $io->writeError('<error>The following exception is caused by a process timeout</error>', true, IOInterface::QUIET);
            $io->writeError('<error>Check https://getcomposer.org/doc/06-config.md#process-timeout for details</error>', true, IOInterface::QUIET);
        }

        if ($this->getDisablePluginsByDefault() && $this->isRunningAsRoot() && !$this->io->isInteractive()) {
            $io->writeError('<error>Plugins have been disabled automatically as you are running as root, this may be the cause of the following exception. See also https://getcomposer.org/root</error>', true, IOInterface::QUIET);
        } elseif ($exception instanceof CommandNotFoundException && $this->getDisablePluginsByDefault()) {
            $io->writeError('<error>Plugins have been disabled, which may be why some commands are missing, unless you made a typo</error>', true, IOInterface::QUIET);
        }

        $hints = HttpDownloader::getExceptionHints($exception);
        if (null !== $hints && count($hints) > 0) {
            foreach ($hints as $hint) {
                $io->writeError($hint, true, IOInterface::QUIET);
            }
        }
    }

    /**
     * @throws JsonValidationException
     * @throws \InvalidArgumentException
     * @return ?Composer If $required is true then the return value is guaranteed
     */
    public function getComposer(bool $required = true, ?bool $disablePlugins = null, ?bool $disableScripts = null): ?Composer
    {
        if (null === $disablePlugins) {
            $disablePlugins = $this->disablePluginsByDefault;
        }
        if (null === $disableScripts) {
            $disableScripts = $this->disableScriptsByDefault;
        }

        if (null === $this->composer) {
            try {
                $this->composer = Factory::create(Platform::isInputCompletionProcess() ? new NullIO() : $this->io, null, $disablePlugins, $disableScripts);
            } catch (\InvalidArgumentException $e) {
                if ($required) {
                    $this->io->writeError($e->getMessage());
                    if ($this->areExceptionsCaught()) {
                        exit(1);
                    }
                    throw $e;
                }
            } catch (JsonValidationException $e) {
                if ($required) {
                    throw $e;
                }
            } catch (RuntimeException $e) {
                if ($required) {
                    throw $e;
                }
            }
        }

        return $this->composer;
    }

    /**
     * Removes the cached composer instance
     */
    public function resetComposer(): void
    {
        $this->composer = null;
        if (method_exists($this->getIO(), 'resetAuthentications')) {
            $this->getIO()->resetAuthentications();
        }
    }

    public function getIO(): IOInterface
    {
        return $this->io;
    }

    public function getHelp(): string
    {
        return self::$logo . parent::getHelp();
    }

    /**
     * Initializes all the composer commands.
     * @return \Symfony\Component\Console\Command\Command[]
     */
    protected function getDefaultCommands(): array
    {
        $commands = array_merge(parent::getDefaultCommands(), [
            new Command\AboutCommand(),
            new Command\ConfigCommand(),
            new Command\DependsCommand(),
            new Command\ProhibitsCommand(),
            new Command\InitCommand(),
            new Command\InstallCommand(),
            new Command\CreateProjectCommand(),
            new Command\UpdateCommand(),
            new Command\SearchCommand(),
            new Command\ValidateCommand(),
            new Command\AuditCommand(),
            new Command\ShowCommand(),
            new Command\SuggestsCommand(),
            new Command\RequireCommand(),
            new Command\DumpAutoloadCommand(),
            new Command\StatusCommand(),
            new Command\ArchiveCommand(),
            new Command\DiagnoseCommand(),
            new Command\RunScriptCommand(),
            new Command\LicensesCommand(),
            new Command\GlobalCommand(),
            new Command\ClearCacheCommand(),
            new Command\RemoveCommand(),
            new Command\HomeCommand(),
            new Command\ExecCommand(),
            new Command\OutdatedCommand(),
            new Command\CheckPlatformReqsCommand(),
            new Command\FundCommand(),
            new Command\ReinstallCommand(),
            new Command\BumpCommand(),
        ]);

        if (strpos(__FILE__, 'phar:') === 0 || '1' === Platform::getEnv('COMPOSER_TESTS_ARE_RUNNING')) {
            $commands[] = new Command\SelfUpdateCommand();
        }

        return $commands;
    }

    public function getLongVersion(): string
    {
        $branchAliasString = '';
        if (Composer::BRANCH_ALIAS_VERSION && Composer::BRANCH_ALIAS_VERSION !== '@package_branch_alias_version'.'@') {
            $branchAliasString = sprintf(' (%s)', Composer::BRANCH_ALIAS_VERSION);
        }

        return sprintf(
            '<info>%s</info> version <comment>%s%s</comment> %s',
            $this->getName(),
            $this->getVersion(),
            $branchAliasString,
            Composer::RELEASE_DATE
        );
    }

    protected function getDefaultInputDefinition(): InputDefinition
    {
        $definition = parent::getDefaultInputDefinition();
        $definition->addOption(new InputOption('--profile', null, InputOption::VALUE_NONE, 'Display timing and memory usage information'));
        $definition->addOption(new InputOption('--no-plugins', null, InputOption::VALUE_NONE, 'Whether to disable plugins.'));
        $definition->addOption(new InputOption('--no-scripts', null, InputOption::VALUE_NONE, 'Skips the execution of all scripts defined in composer.json file.'));
        $definition->addOption(new InputOption('--working-dir', '-d', InputOption::VALUE_REQUIRED, 'If specified, use the given directory as working directory.'));
        $definition->addOption(new InputOption('--no-cache', null, InputOption::VALUE_NONE, 'Prevent use of the cache'));

        return $definition;
    }

    /**
     * @return Command\BaseCommand[]
     */
    private function getPluginCommands(): array
    {
        $commands = [];

        $composer = $this->getComposer(false, false);
        if (null === $composer) {
            $composer = Factory::createGlobal($this->io, $this->disablePluginsByDefault, $this->disableScriptsByDefault);
        }

        if (null !== $composer) {
            $pm = $composer->getPluginManager();
            foreach ($pm->getPluginCapabilities('Composer\Plugin\Capability\CommandProvider', ['composer' => $composer, 'io' => $this->io]) as $capability) {
                $newCommands = $capability->getCommands();
                if (!is_array($newCommands)) {
                    throw new \UnexpectedValueException('Plugin capability '.get_class($capability).' failed to return an array from getCommands');
                }
                foreach ($newCommands as $command) {
                    if (!$command instanceof Command\BaseCommand) {
                        throw new \UnexpectedValueException('Plugin capability '.get_class($capability).' returned an invalid value, we expected an array of Composer\Command\BaseCommand objects');
                    }
                }
                $commands = array_merge($commands, $newCommands);
            }
        }

        return $commands;
    }

    /**
     * Get the working directory at startup time
     *
     * @return string|false
     */
    public function getInitialWorkingDirectory()
    {
        return $this->initialWorkingDirectory;
    }

    public function getDisablePluginsByDefault(): bool
    {
        return $this->disablePluginsByDefault;
    }

    public function getDisableScriptsByDefault(): bool
    {
        return $this->disableScriptsByDefault;
    }

    /**
     * @return 'prompt'|bool
     */
    private function getUseParentDirConfigValue()
    {
        $config = Factory::createConfig($this->io);

        return $config->get('use-parent-dir');
    }

    private function isRunningAsRoot(): bool
    {
        return function_exists('posix_getuid') && posix_getuid() === 0;
    }
}