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<?php /* * This file is part of the Symfony package. * * (c) Fabien Potencier <fabien@symfony.com> * * For the full copyright and license information, please view the LICENSE * file that was distributed with this source code. */ namespace Symfony\Component\Console; use Symfony\Component\Console\Command\Command; use Symfony\Component\Console\Command\HelpCommand; use Symfony\Component\Console\Command\ListCommand; use Symfony\Component\Console\CommandLoader\CommandLoaderInterface; use Symfony\Component\Console\Event\ConsoleCommandEvent; use Symfony\Component\Console\Event\ConsoleErrorEvent; use Symfony\Component\Console\Event\ConsoleTerminateEvent; use Symfony\Component\Console\Exception\CommandNotFoundException; use Symfony\Component\Console\Exception\ExceptionInterface; use Symfony\Component\Console\Exception\LogicException; use Symfony\Component\Console\Exception\NamespaceNotFoundException; use Symfony\Component\Console\Formatter\OutputFormatter; use Symfony\Component\Console\Helper\DebugFormatterHelper; use Symfony\Component\Console\Helper\FormatterHelper; use Symfony\Component\Console\Helper\Helper; use Symfony\Component\Console\Helper\HelperSet; use Symfony\Component\Console\Helper\ProcessHelper; use Symfony\Component\Console\Helper\QuestionHelper; use Symfony\Component\Console\Input\ArgvInput; use Symfony\Component\Console\Input\ArrayInput; use Symfony\Component\Console\Input\InputArgument; use Symfony\Component\Console\Input\InputAwareInterface; use Symfony\Component\Console\Input\InputDefinition; use Symfony\Component\Console\Input\InputInterface; use Symfony\Component\Console\Input\InputOption; use Symfony\Component\Console\Input\StreamableInputInterface; use Symfony\Component\Console\Output\ConsoleOutput; use Symfony\Component\Console\Output\ConsoleOutputInterface; use Symfony\Component\Console\Output\OutputInterface; use Symfony\Component\Console\Style\SymfonyStyle; use Symfony\Component\Debug\ErrorHandler; use Symfony\Component\Debug\Exception\FatalThrowableError; use Symfony\Component\EventDispatcher\EventDispatcherInterface; /** * An Application is the container for a collection of commands. * * It is the main entry point of a Console application. * * This class is optimized for a standard CLI environment. * * Usage: * * $app = new Application('myapp', '1.0 (stable)'); * $app->add(new SimpleCommand()); * $app->run(); * * @author Fabien Potencier <fabien@symfony.com> */ class Application { private $commands = array(); private $wantHelps = false; private $runningCommand; private $name; private $version; private $commandLoader; private $catchExceptions = true; private $autoExit = true; private $definition; private $helperSet; private $dispatcher; private $terminal; private $defaultCommand; private $singleCommand; private $initialized; /** * @param string $name The name of the application * @param string $version The version of the application */ public function __construct(string $name = 'UNKNOWN', string $version = 'UNKNOWN') { $this->name = $name; $this->version = $version; $this->terminal = new Terminal(); $this->defaultCommand = 'list'; } public function setDispatcher(EventDispatcherInterface $dispatcher) { $this->dispatcher = $dispatcher; } public function setCommandLoader(CommandLoaderInterface $commandLoader) { $this->commandLoader = $commandLoader; } /** * Runs the current application. * * @return int 0 if everything went fine, or an error code * * @throws \Exception When running fails. Bypass this when {@link setCatchExceptions()}. */ public function run(InputInterface $input = null, OutputInterface $output = null) { putenv('LINES='.$this->terminal->getHeight()); putenv('COLUMNS='.$this->terminal->getWidth()); if (null === $input) { $input = new ArgvInput(); } if (null === $output) { $output = new ConsoleOutput(); } $renderException = function ($e) use ($output) { if (!$e instanceof \Exception) { $e = class_exists(FatalThrowableError::class) ? new FatalThrowableError($e) : new \ErrorException($e->getMessage(), $e->getCode(), E_ERROR, $e->getFile(), $e->getLine()); } if ($output instanceof ConsoleOutputInterface) { $this->renderException($e, $output->getErrorOutput()); } else { $this->renderException($e, $output); } }; if ($phpHandler = set_exception_handler($renderException)) { restore_exception_handler(); if (!\is_array($phpHandler) || !$phpHandler[0] instanceof ErrorHandler) { $debugHandler = true; } elseif ($debugHandler = $phpHandler[0]->setExceptionHandler($renderException)) { $phpHandler[0]->setExceptionHandler($debugHandler); } } $this->configureIO($input, $output); try { $exitCode = $this->doRun($input, $output); } catch (\Exception $e) { if (!$this->catchExceptions) { throw $e; } $renderException($e); $exitCode = $e->getCode(); if (is_numeric($exitCode)) { $exitCode = (int) $exitCode; if (0 === $exitCode) { $exitCode = 1; } } else { $exitCode = 1; } } finally { // if the exception handler changed, keep it // otherwise, unregister $renderException if (!$phpHandler) { if (set_exception_handler($renderException) === $renderException) { restore_exception_handler(); } restore_exception_handler(); } elseif (!$debugHandler) { $finalHandler = $phpHandler[0]->setExceptionHandler(null); if ($finalHandler !== $renderException) { $phpHandler[0]->setExceptionHandler($finalHandler); } } } if ($this->autoExit) { if ($exitCode > 255) { $exitCode = 255; } exit($exitCode); } return $exitCode; } /** * Runs the current application. * * @return int 0 if everything went fine, or an error code */ public function doRun(InputInterface $input, OutputInterface $output) { if (true === $input->hasParameterOption(array('--version', '-V'), true)) { $output->writeln($this->getLongVersion()); return 0; } $name = $this->getCommandName($input); if (true === $input->hasParameterOption(array('--help', '-h'), true)) { if (!$name) { $name = 'help'; $input = new ArrayInput(array('command_name' => $this->defaultCommand)); } else { $this->wantHelps = true; } } if (!$name) { $name = $this->defaultCommand; $definition = $this->getDefinition(); $definition->setArguments(array_merge( $definition->getArguments(), array( 'command' => new InputArgument('command', InputArgument::OPTIONAL, $definition->getArgument('command')->getDescription(), $name), ) )); } try { $this->runningCommand = null; // the command name MUST be the first element of the input $command = $this->find($name); } catch (\Throwable $e) { if (!($e instanceof CommandNotFoundException && !$e instanceof NamespaceNotFoundException) || 1 !== \count($alternatives = $e->getAlternatives()) || !$input->isInteractive()) { if (null !== $this->dispatcher) { $event = new ConsoleErrorEvent($input, $output, $e); $this->dispatcher->dispatch(ConsoleEvents::ERROR, $event); if (0 === $event->getExitCode()) { return 0; } $e = $event->getError(); } throw $e; } $alternative = $alternatives[0]; $style = new SymfonyStyle($input, $output); $style->block(sprintf("\nCommand \"%s\" is not defined.\n", $name), null, 'error'); if (!$style->confirm(sprintf('Do you want to run "%s" instead? ', $alternative), false)) { if (null !== $this->dispatcher) { $event = new ConsoleErrorEvent($input, $output, $e); $this->dispatcher->dispatch(ConsoleEvents::ERROR, $event); return $event->getExitCode(); } return 1; } $command = $this->find($alternative); } $this->runningCommand = $command; $exitCode = $this->doRunCommand($command, $input, $output); $this->runningCommand = null; return $exitCode; } public function setHelperSet(HelperSet $helperSet) { $this->helperSet = $helperSet; } /** * Get the helper set associated with the command. * * @return HelperSet The HelperSet instance associated with this command */ public function getHelperSet() { if (!$this->helperSet) { $this->helperSet = $this->getDefaultHelperSet(); } return $this->helperSet; } public function setDefinition(InputDefinition $definition) { $this->definition = $definition; } /** * Gets the InputDefinition related to this Application. * * @return InputDefinition The InputDefinition instance */ public function getDefinition() { if (!$this->definition) { $this->definition = $this->getDefaultInputDefinition(); } if ($this->singleCommand) { $inputDefinition = $this->definition; $inputDefinition->setArguments(); return $inputDefinition; } return $this->definition; } /** * Gets the help message. * * @return string A help message */ public function getHelp() { return $this->getLongVersion(); } /** * Gets whether to catch exceptions or not during commands execution. * * @return bool Whether to catch exceptions or not during commands execution */ public function areExceptionsCaught() { return $this->catchExceptions; } /** * Sets whether to catch exceptions or not during commands execution. * * @param bool $boolean Whether to catch exceptions or not during commands execution */ public function setCatchExceptions($boolean) { $this->catchExceptions = (bool) $boolean; } /** * Gets whether to automatically exit after a command execution or not. * * @return bool Whether to automatically exit after a command execution or not */ public function isAutoExitEnabled() { return $this->autoExit; } /** * Sets whether to automatically exit after a command execution or not. * * @param bool $boolean Whether to automatically exit after a command execution or not */ public function setAutoExit($boolean) { $this->autoExit = (bool) $boolean; } /** * Gets the name of the application. * * @return string The application name */ public function getName() { return $this->name; } /** * Sets the application name. * * @param string $name The application name */ public function setName($name) { $this->name = $name; } /** * Gets the application version. * * @return string The application version */ public function getVersion() { return $this->version; } /** * Sets the application version. * * @param string $version The application version */ public function setVersion($version) { $this->version = $version; } /** * Returns the long version of the application. * * @return string The long application version */ public function getLongVersion() { if ('UNKNOWN' !== $this->getName()) { if ('UNKNOWN' !== $this->getVersion()) { return sprintf('%s <info>%s</info>', $this->getName(), $this->getVersion()); } return $this->getName(); } return 'Console Tool'; } /** * Registers a new command. * * @param string $name The command name * * @return Command The newly created command */ public function register($name) { return $this->add(new Command($name)); } /** * Adds an array of command objects. * * If a Command is not enabled it will not be added. * * @param Command[] $commands An array of commands */ public function addCommands(array $commands) { foreach ($commands as $command) { $this->add($command); } } /** * Adds a command object. * * If a command with the same name already exists, it will be overridden. * If the command is not enabled it will not be added. * * @return Command|null The registered command if enabled or null */ public function add(Command $command) { $this->init(); $command->setApplication($this); if (!$command->isEnabled()) { $command->setApplication(null); return; } if (null === $command->getDefinition()) { throw new LogicException(sprintf('Command class "%s" is not correctly initialized. You probably forgot to call the parent constructor.', \get_class($command))); } if (!$command->getName()) { throw new LogicException(sprintf('The command defined in "%s" cannot have an empty name.', \get_class($command))); } $this->commands[$command->getName()] = $command; foreach ($command->getAliases() as $alias) { $this->commands[$alias] = $command; } return $command; } /** * Returns a registered command by name or alias. * * @param string $name The command name or alias * * @return Command A Command object * * @throws CommandNotFoundException When given command name does not exist */ public function get($name) { $this->init(); if (!$this->has($name)) { throw new CommandNotFoundException(sprintf('The command "%s" does not exist.', $name)); } $command = $this->commands[$name]; if ($this->wantHelps) { $this->wantHelps = false; $helpCommand = $this->get('help'); $helpCommand->setCommand($command); return $helpCommand; } return $command; } /** * Returns true if the command exists, false otherwise. * * @param string $name The command name or alias * * @return bool true if the command exists, false otherwise */ public function has($name) { $this->init(); return isset($this->commands[$name]) || ($this->commandLoader && $this->commandLoader->has($name) && $this->add($this->commandLoader->get($name))); } /** * Returns an array of all unique namespaces used by currently registered commands. * * It does not return the global namespace which always exists. * * @return string[] An array of namespaces */ public function getNamespaces() { $namespaces = array(); foreach ($this->all() as $command) { $namespaces = array_merge($namespaces, $this->extractAllNamespaces($command->getName())); foreach ($command->getAliases() as $alias) { $namespaces = array_merge($namespaces, $this->extractAllNamespaces($alias)); } } return array_values(array_unique(array_filter($namespaces))); } /** * Finds a registered namespace by a name or an abbreviation. * * @param string $namespace A namespace or abbreviation to search for * * @return string A registered namespace * * @throws NamespaceNotFoundException When namespace is incorrect or ambiguous */ public function findNamespace($namespace) { $allNamespaces = $this->getNamespaces(); $expr = preg_replace_callback('{([^:]+|)}', function ($matches) { return preg_quote($matches[1]).'[^:]*'; }, $namespace); $namespaces = preg_grep('{^'.$expr.'}', $allNamespaces); if (empty($namespaces)) { $message = sprintf('There are no commands defined in the "%s" namespace.', $namespace); if ($alternatives = $this->findAlternatives($namespace, $allNamespaces)) { if (1 == \count($alternatives)) { $message .= "\n\nDid you mean this?\n "; } else { $message .= "\n\nDid you mean one of these?\n "; } $message .= implode("\n ", $alternatives); } throw new NamespaceNotFoundException($message, $alternatives); } $exact = \in_array($namespace, $namespaces, true); if (\count($namespaces) > 1 && !$exact) { throw new NamespaceNotFoundException(sprintf("The namespace \"%s\" is ambiguous.\nDid you mean one of these?\n%s", $namespace, $this->getAbbreviationSuggestions(array_values($namespaces))), array_values($namespaces)); } return $exact ? $namespace : reset($namespaces); } /** * Finds a command by name or alias. * * Contrary to get, this command tries to find the best * match if you give it an abbreviation of a name or alias. * * @param string $name A command name or a command alias * * @return Command A Command instance * * @throws CommandNotFoundException When command name is incorrect or ambiguous */ public function find($name) { $this->init(); $aliases = array(); $allCommands = $this->commandLoader ? array_merge($this->commandLoader->getNames(), array_keys($this->commands)) : array_keys($this->commands); $expr = preg_replace_callback('{([^:]+|)}', function ($matches) { return preg_quote($matches[1]).'[^:]*'; }, $name); $commands = preg_grep('{^'.$expr.'}', $allCommands); if (empty($commands)) { $commands = preg_grep('{^'.$expr.'}i', $allCommands); } // if no commands matched or we just matched namespaces if (empty($commands) || \count(preg_grep('{^'.$expr.'$}i', $commands)) < 1) { if (false !== $pos = strrpos($name, ':')) { // check if a namespace exists and contains commands $this->findNamespace(substr($name, 0, $pos)); } $message = sprintf('Command "%s" is not defined.', $name); if ($alternatives = $this->findAlternatives($name, $allCommands)) { if (1 == \count($alternatives)) { $message .= "\n\nDid you mean this?\n "; } else { $message .= "\n\nDid you mean one of these?\n "; } $message .= implode("\n ", $alternatives); } throw new CommandNotFoundException($message, $alternatives); } // filter out aliases for commands which are already on the list if (\count($commands) > 1) { $commandList = $this->commandLoader ? array_merge(array_flip($this->commandLoader->getNames()), $this->commands) : $this->commands; $commands = array_unique(array_filter($commands, function ($nameOrAlias) use ($commandList, $commands, &$aliases) { $commandName = $commandList[$nameOrAlias] instanceof Command ? $commandList[$nameOrAlias]->getName() : $nameOrAlias; $aliases[$nameOrAlias] = $commandName; return $commandName === $nameOrAlias || !\in_array($commandName, $commands); })); } $exact = \in_array($name, $commands, true) || isset($aliases[$name]); if (\count($commands) > 1 && !$exact) { $usableWidth = $this->terminal->getWidth() - 10; $abbrevs = array_values($commands); $maxLen = 0; foreach ($abbrevs as $abbrev) { $maxLen = max(Helper::strlen($abbrev), $maxLen); } $abbrevs = array_map(function ($cmd) use ($commandList, $usableWidth, $maxLen) { if (!$commandList[$cmd] instanceof Command) { return $cmd; } $abbrev = str_pad($cmd, $maxLen, ' ').' '.$commandList[$cmd]->getDescription(); return Helper::strlen($abbrev) > $usableWidth ? Helper::substr($abbrev, 0, $usableWidth - 3).'...' : $abbrev; }, array_values($commands)); $suggestions = $this->getAbbreviationSuggestions($abbrevs); throw new CommandNotFoundException(sprintf("Command \"%s\" is ambiguous.\nDid you mean one of these?\n%s", $name, $suggestions), array_values($commands)); } return $this->get($exact ? $name : reset($commands)); } /** * Gets the commands (registered in the given namespace if provided). * * The array keys are the full names and the values the command instances. * * @param string $namespace A namespace name * * @return Command[] An array of Command instances */ public function all($namespace = null) { $this->init(); if (null === $namespace) { if (!$this->commandLoader) { return $this->commands; } $commands = $this->commands; foreach ($this->commandLoader->getNames() as $name) { if (!isset($commands[$name]) && $this->has($name)) { $commands[$name] = $this->get($name); } } return $commands; } $commands = array(); foreach ($this->commands as $name => $command) { if ($namespace === $this->extractNamespace($name, substr_count($namespace, ':') + 1)) { $commands[$name] = $command; } } if ($this->commandLoader) { foreach ($this->commandLoader->getNames() as $name) { if (!isset($commands[$name]) && $namespace === $this->extractNamespace($name, substr_count($namespace, ':') + 1) && $this->has($name)) { $commands[$name] = $this->get($name); } } } return $commands; } /** * Returns an array of possible abbreviations given a set of names. * * @param array $names An array of names * * @return array An array of abbreviations */ public static function getAbbreviations($names) { $abbrevs = array(); foreach ($names as $name) { for ($len = \strlen($name); $len > 0; --$len) { $abbrev = substr($name, 0, $len); $abbrevs[$abbrev][] = $name; } } return $abbrevs; } /** * Renders a caught exception. */ public function renderException(\Exception $e, OutputInterface $output) { $output->writeln('', OutputInterface::VERBOSITY_QUIET); $this->doRenderException($e, $output); if (null !== $this->runningCommand) { $output->writeln(sprintf('<info>%s</info>', sprintf($this->runningCommand->getSynopsis(), $this->getName())), OutputInterface::VERBOSITY_QUIET); $output->writeln('', OutputInterface::VERBOSITY_QUIET); } } protected function doRenderException(\Exception $e, OutputInterface $output) { do { $message = trim($e->getMessage()); if ('' === $message || OutputInterface::VERBOSITY_VERBOSE <= $output->getVerbosity()) { $title = sprintf(' [%s%s] ', \get_class($e), 0 !== ($code = $e->getCode()) ? ' ('.$code.')' : ''); $len = Helper::strlen($title); } else { $len = 0; } $width = $this->terminal->getWidth() ? $this->terminal->getWidth() - 1 : PHP_INT_MAX; $lines = array(); foreach ('' !== $message ? preg_split('/\r?\n/', $message) : array() as $line) { foreach ($this->splitStringByWidth($line, $width - 4) as $line) { // pre-format lines to get the right string length $lineLength = Helper::strlen($line) + 4; $lines[] = array($line, $lineLength); $len = max($lineLength, $len); } } $messages = array(); if (!$e instanceof ExceptionInterface || OutputInterface::VERBOSITY_VERBOSE <= $output->getVerbosity()) { $messages[] = sprintf('<comment>%s</comment>', OutputFormatter::escape(sprintf('In %s line %s:', basename($e->getFile()) ?: 'n/a', $e->getLine() ?: 'n/a'))); } $messages[] = $emptyLine = sprintf('<error>%s</error>', str_repeat(' ', $len)); if ('' === $message || OutputInterface::VERBOSITY_VERBOSE <= $output->getVerbosity()) { $messages[] = sprintf('<error>%s%s</error>', $title, str_repeat(' ', max(0, $len - Helper::strlen($title)))); } foreach ($lines as $line) { $messages[] = sprintf('<error> %s %s</error>', OutputFormatter::escape($line[0]), str_repeat(' ', $len - $line[1])); } $messages[] = $emptyLine; $messages[] = ''; $output->writeln($messages, OutputInterface::VERBOSITY_QUIET); if (OutputInterface::VERBOSITY_VERBOSE <= $output->getVerbosity()) { $output->writeln('<comment>Exception trace:</comment>', OutputInterface::VERBOSITY_QUIET); // exception related properties $trace = $e->getTrace(); for ($i = 0, $count = \count($trace); $i < $count; ++$i) { $class = isset($trace[$i]['class']) ? $trace[$i]['class'] : ''; $type = isset($trace[$i]['type']) ? $trace[$i]['type'] : ''; $function = $trace[$i]['function']; $file = isset($trace[$i]['file']) ? $trace[$i]['file'] : 'n/a'; $line = isset($trace[$i]['line']) ? $trace[$i]['line'] : 'n/a'; $output->writeln(sprintf(' %s%s%s() at <info>%s:%s</info>', $class, $type, $function, $file, $line), OutputInterface::VERBOSITY_QUIET); } $output->writeln('', OutputInterface::VERBOSITY_QUIET); } } while ($e = $e->getPrevious()); } /** * Configures the input and output instances based on the user arguments and options. */ protected function configureIO(InputInterface $input, OutputInterface $output) { if (true === $input->hasParameterOption(array('--ansi'), true)) { $output->setDecorated(true); } elseif (true === $input->hasParameterOption(array('--no-ansi'), true)) { $output->setDecorated(false); } if (true === $input->hasParameterOption(array('--no-interaction', '-n'), true)) { $input->setInteractive(false); } elseif (\function_exists('posix_isatty')) { $inputStream = null; if ($input instanceof StreamableInputInterface) { $inputStream = $input->getStream(); } if (!@posix_isatty($inputStream) && false === getenv('SHELL_INTERACTIVE')) { $input->setInteractive(false); } } switch ($shellVerbosity = (int) getenv('SHELL_VERBOSITY')) { case -1: $output->setVerbosity(OutputInterface::VERBOSITY_QUIET); break; case 1: $output->setVerbosity(OutputInterface::VERBOSITY_VERBOSE); break; case 2: $output->setVerbosity(OutputInterface::VERBOSITY_VERY_VERBOSE); break; case 3: $output->setVerbosity(OutputInterface::VERBOSITY_DEBUG); break; default: $shellVerbosity = 0; break; } if (true === $input->hasParameterOption(array('--quiet', '-q'), true)) { $output->setVerbosity(OutputInterface::VERBOSITY_QUIET); $shellVerbosity = -1; } else { if ($input->hasParameterOption('-vvv', true) || $input->hasParameterOption('--verbose=3', true) || 3 === $input->getParameterOption('--verbose', false, true)) { $output->setVerbosity(OutputInterface::VERBOSITY_DEBUG); $shellVerbosity = 3; } elseif ($input->hasParameterOption('-vv', true) || $input->hasParameterOption('--verbose=2', true) || 2 === $input->getParameterOption('--verbose', false, true)) { $output->setVerbosity(OutputInterface::VERBOSITY_VERY_VERBOSE); $shellVerbosity = 2; } elseif ($input->hasParameterOption('-v', true) || $input->hasParameterOption('--verbose=1', true) || $input->hasParameterOption('--verbose', true) || $input->getParameterOption('--verbose', false, true)) { $output->setVerbosity(OutputInterface::VERBOSITY_VERBOSE); $shellVerbosity = 1; } } if (-1 === $shellVerbosity) { $input->setInteractive(false); } putenv('SHELL_VERBOSITY='.$shellVerbosity); $_ENV['SHELL_VERBOSITY'] = $shellVerbosity; $_SERVER['SHELL_VERBOSITY'] = $shellVerbosity; } /** * Runs the current command. * * If an event dispatcher has been attached to the application, * events are also dispatched during the life-cycle of the command. * * @return int 0 if everything went fine, or an error code */ protected function doRunCommand(Command $command, InputInterface $input, OutputInterface $output) { foreach ($command->getHelperSet() as $helper) { if ($helper instanceof InputAwareInterface) { $helper->setInput($input); } } if (null === $this->dispatcher) { return $command->run($input, $output); } // bind before the console.command event, so the listeners have access to input options/arguments try { $command->mergeApplicationDefinition(); $input->bind($command->getDefinition()); } catch (ExceptionInterface $e) { // ignore invalid options/arguments for now, to allow the event listeners to customize the InputDefinition } $event = new ConsoleCommandEvent($command, $input, $output); $e = null; try { $this->dispatcher->dispatch(ConsoleEvents::COMMAND, $event); if ($event->commandShouldRun()) { $exitCode = $command->run($input, $output); } else { $exitCode = ConsoleCommandEvent::RETURN_CODE_DISABLED; } } catch (\Throwable $e) { $event = new ConsoleErrorEvent($input, $output, $e, $command); $this->dispatcher->dispatch(ConsoleEvents::ERROR, $event); $e = $event->getError(); if (0 === $exitCode = $event->getExitCode()) { $e = null; } } $event = new ConsoleTerminateEvent($command, $input, $output, $exitCode); $this->dispatcher->dispatch(ConsoleEvents::TERMINATE, $event); if (null !== $e) { throw $e; } return $event->getExitCode(); } /** * Gets the name of the command based on input. * * @return string The command name */ protected function getCommandName(InputInterface $input) { return $this->singleCommand ? $this->defaultCommand : $input->getFirstArgument(); } /** * Gets the default input definition. * * @return InputDefinition An InputDefinition instance */ protected function getDefaultInputDefinition() { return new InputDefinition(array( new InputArgument('command', InputArgument::REQUIRED, 'The command to execute'), new InputOption('--help', '-h', InputOption::VALUE_NONE, 'Display this help message'), new InputOption('--quiet', '-q', InputOption::VALUE_NONE, 'Do not output any message'), new InputOption('--verbose', '-v|vv|vvv', InputOption::VALUE_NONE, 'Increase the verbosity of messages: 1 for normal output, 2 for more verbose output and 3 for debug'), new InputOption('--version', '-V', InputOption::VALUE_NONE, 'Display this application version'), new InputOption('--ansi', '', InputOption::VALUE_NONE, 'Force ANSI output'), new InputOption('--no-ansi', '', InputOption::VALUE_NONE, 'Disable ANSI output'), new InputOption('--no-interaction', '-n', InputOption::VALUE_NONE, 'Do not ask any interactive question'), )); } /** * Gets the default commands that should always be available. * * @return Command[] An array of default Command instances */ protected function getDefaultCommands() { return array(new HelpCommand(), new ListCommand()); } /** * Gets the default helper set with the helpers that should always be available. * * @return HelperSet A HelperSet instance */ protected function getDefaultHelperSet() { return new HelperSet(array( new FormatterHelper(), new DebugFormatterHelper(), new ProcessHelper(), new QuestionHelper(), )); } /** * Returns abbreviated suggestions in string format. * * @param array $abbrevs Abbreviated suggestions to convert * * @return string A formatted string of abbreviated suggestions */ private function getAbbreviationSuggestions($abbrevs) { return ' '.implode("\n ", $abbrevs); } /** * Returns the namespace part of the command name. * * This method is not part of public API and should not be used directly. * * @param string $name The full name of the command * @param string $limit The maximum number of parts of the namespace * * @return string The namespace of the command */ public function extractNamespace($name, $limit = null) { $parts = explode(':', $name); array_pop($parts); return implode(':', null === $limit ? $parts : \array_slice($parts, 0, $limit)); } /** * Finds alternative of $name among $collection, * if nothing is found in $collection, try in $abbrevs. * * @param string $name The string * @param iterable $collection The collection * * @return string[] A sorted array of similar string */ private function findAlternatives($name, $collection) { $threshold = 1e3; $alternatives = array(); $collectionParts = array(); foreach ($collection as $item) { $collectionParts[$item] = explode(':', $item); } foreach (explode(':', $name) as $i => $subname) { foreach ($collectionParts as $collectionName => $parts) { $exists = isset($alternatives[$collectionName]); if (!isset($parts[$i]) && $exists) { $alternatives[$collectionName] += $threshold; continue; } elseif (!isset($parts[$i])) { continue; } $lev = levenshtein($subname, $parts[$i]); if ($lev <= \strlen($subname) / 3 || '' !== $subname && false !== strpos($parts[$i], $subname)) { $alternatives[$collectionName] = $exists ? $alternatives[$collectionName] + $lev : $lev; } elseif ($exists) { $alternatives[$collectionName] += $threshold; } } } foreach ($collection as $item) { $lev = levenshtein($name, $item); if ($lev <= \strlen($name) / 3 || false !== strpos($item, $name)) { $alternatives[$item] = isset($alternatives[$item]) ? $alternatives[$item] - $lev : $lev; } } $alternatives = array_filter($alternatives, function ($lev) use ($threshold) { return $lev < 2 * $threshold; }); ksort($alternatives, SORT_NATURAL | SORT_FLAG_CASE); return array_keys($alternatives); } /** * Sets the default Command name. * * @param string $commandName The Command name * @param bool $isSingleCommand Set to true if there is only one command in this application * * @return self */ public function setDefaultCommand($commandName, $isSingleCommand = false) { $this->defaultCommand = $commandName; if ($isSingleCommand) { // Ensure the command exist $this->find($commandName); $this->singleCommand = true; } return $this; } private function splitStringByWidth($string, $width) { // str_split is not suitable for multi-byte characters, we should use preg_split to get char array properly. // additionally, array_slice() is not enough as some character has doubled width. // we need a function to split string not by character count but by string width if (false === $encoding = mb_detect_encoding($string, null, true)) { return str_split($string, $width); } $utf8String = mb_convert_encoding($string, 'utf8', $encoding); $lines = array(); $line = ''; foreach (preg_split('//u', $utf8String) as $char) { // test if $char could be appended to current line if (mb_strwidth($line.$char, 'utf8') <= $width) { $line .= $char; continue; } // if not, push current line to array and make new line $lines[] = str_pad($line, $width); $line = $char; } $lines[] = \count($lines) ? str_pad($line, $width) : $line; mb_convert_variables($encoding, 'utf8', $lines); return $lines; } /** * Returns all namespaces of the command name. * * @param string $name The full name of the command * * @return string[] The namespaces of the command */ private function extractAllNamespaces($name) { // -1 as third argument is needed to skip the command short name when exploding $parts = explode(':', $name, -1); $namespaces = array(); foreach ($parts as $part) { if (\count($namespaces)) { $namespaces[] = end($namespaces).':'.$part; } else { $namespaces[] = $part; } } return $namespaces; } private function init() { if ($this->initialized) { return; } $this->initialized = true; foreach ($this->getDefaultCommands() as $command) { $this->add($command); } } }