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Edit File : Configuration.php \| Size : 54.88 KB
<?php /* * This file is part of Psy Shell. * * (c) 2012-2023 Justin Hileman * * For the full copyright and license information, please view the LICENSE * file that was distributed with this source code. / namespace Psy; use Psy\Exception\DeprecatedException; use Psy\Exception\RuntimeException; use Psy\ExecutionLoop\ProcessForker; use Psy\Output\OutputPager; use Psy\Output\ShellOutput; use Psy\Output\Theme; use Psy\TabCompletion\AutoCompleter; use Psy\VarDumper\Presenter; use Psy\VersionUpdater\Checker; use Psy\VersionUpdater\GitHubChecker; use Psy\VersionUpdater\IntervalChecker; use Psy\VersionUpdater\NoopChecker; use Symfony\Component\Console\Formatter\OutputFormatterStyle; use Symfony\Component\Console\Input\InputInterface; use Symfony\Component\Console\Input\InputOption; use Symfony\Component\Console\Output\OutputInterface; /* * The Psy Shell configuration. / class Configuration { const COLOR_MODE_AUTO = 'auto'; const COLOR_MODE_FORCED = 'forced'; const COLOR_MODE_DISABLED = 'disabled'; const INTERACTIVE_MODE_AUTO = 'auto'; const INTERACTIVE_MODE_FORCED = 'forced'; const INTERACTIVE_MODE_DISABLED = 'disabled'; const VERBOSITY_QUIET = 'quiet'; const VERBOSITY_NORMAL = 'normal'; const VERBOSITY_VERBOSE = 'verbose'; const VERBOSITY_VERY_VERBOSE = 'very_verbose'; const VERBOSITY_DEBUG = 'debug'; private static $AVAILABLE_OPTIONS = [ 'codeCleaner', 'colorMode', 'configDir', 'dataDir', 'defaultIncludes', 'eraseDuplicates', 'errorLoggingLevel', 'forceArrayIndexes', 'formatterStyles', 'historyFile', 'historySize', 'interactiveMode', 'manualDbFile', 'pager', 'prompt', 'rawOutput', 'requireSemicolons', 'runtimeDir', 'startupMessage', 'strictTypes', 'theme', 'updateCheck', 'useBracketedPaste', 'usePcntl', 'useReadline', 'useTabCompletion', 'useUnicode', 'verbosity', 'warnOnMultipleConfigs', 'yolo', ]; private $defaultIncludes; private $configDir; private $dataDir; private $runtimeDir; private $configFile; /* @var string\|false / private $historyFile; private $historySize; private $eraseDuplicates; private $manualDbFile; private $hasReadline; private $useReadline; private $useBracketedPaste; private $hasPcntl; private $usePcntl; private $newCommands = []; private $pipedInput; private $pipedOutput; private $rawOutput = false; private $requireSemicolons = false; private $strictTypes = false; private $useUnicode; private $useTabCompletion; private $newMatchers = []; private $errorLoggingLevel = \E_ALL; private $warnOnMultipleConfigs = false; private $colorMode = self::COLOR_MODE_AUTO; private $interactiveMode = self::INTERACTIVE_MODE_AUTO; private $updateCheck; private $startupMessage; private $forceArrayIndexes = false; /* @deprecated / private $formatterStyles = []; private $verbosity = self::VERBOSITY_NORMAL; private $yolo = false; /* @var Theme / private $theme; // services private $readline; /* @var ShellOutput / private $output; private $shell; private $cleaner; private $pager; private $manualDb; private $presenter; private $autoCompleter; private $checker; /* @deprecated / private $prompt; private $configPaths; /* * Construct a Configuration instance. * * Optionally, supply an array of configuration values to load. * * @param array $config Optional array of configuration values / public function __construct(array $config = []) { $this->configPaths = new ConfigPaths(); // explicit configFile option if (isset($config['configFile'])) { $this->configFile = $config['configFile']; } elseif (isset($_SERVER['PSYSH_CONFIG']) && $_SERVER['PSYSH_CONFIG']) { $this->configFile = $_SERVER['PSYSH_CONFIG']; } elseif (\PHP_SAPI === 'cli-server' && ($configFile = \getenv('PSYSH_CONFIG'))) { $this->configFile = $configFile; } // legacy baseDir option if (isset($config['baseDir'])) { $msg = "The 'baseDir' configuration option is deprecated; ". "please specify 'configDir' and 'dataDir' options instead"; throw new DeprecatedException($msg); } unset($config['configFile'], $config['baseDir']); // go go gadget, config! $this->loadConfig($config); $this->init(); } /* * Construct a Configuration object from Symfony Console input. * * This is great for adding psysh-compatible command line options to framework- or app-specific * wrappers. * * $input should already be bound to an appropriate InputDefinition (see self::getInputOptions * if you want to build your own) before calling this method. It's not required, but things work * a lot better if we do. * * @see self::getInputOptions * * @throws \InvalidArgumentException * * @param InputInterface $input / public static function fromInput(InputInterface $input): self { $config = new self(['configFile' => self::getConfigFileFromInput($input)]); // Handle --color and --no-color (and --ansi and --no-ansi aliases) if (self::getOptionFromInput($input, ['color', 'ansi'])) { $config->setColorMode(self::COLOR_MODE_FORCED); } elseif (self::getOptionFromInput($input, ['no-color', 'no-ansi'])) { $config->setColorMode(self::COLOR_MODE_DISABLED); } // Handle verbosity options if ($verbosity = self::getVerbosityFromInput($input)) { $config->setVerbosity($verbosity); } // Handle interactive mode if (self::getOptionFromInput($input, ['interactive', 'interaction'], ['-a', '-i'])) { $config->setInteractiveMode(self::INTERACTIVE_MODE_FORCED); } elseif (self::getOptionFromInput($input, ['no-interactive', 'no-interaction'], ['-n'])) { $config->setInteractiveMode(self::INTERACTIVE_MODE_DISABLED); } // Handle --compact if (self::getOptionFromInput($input, ['compact'])) { $config->setTheme('compact'); } // Handle --raw-output // @todo support raw output with interactive input? if (!$config->getInputInteractive()) { if (self::getOptionFromInput($input, ['raw-output'], ['-r'])) { $config->setRawOutput(true); } } // Handle --yolo if (self::getOptionFromInput($input, ['yolo'])) { $config->setYolo(true); } return $config; } /* * Get the desired config file from the given input. * * @return string\|null config file path, or null if none is specified / private static function getConfigFileFromInput(InputInterface $input) { // Best case, input is properly bound and validated. if ($input->hasOption('config')) { return $input->getOption('config'); } return $input->getParameterOption('--config', null, true) ?: $input->getParameterOption('-c', null, true); } /* * Get a boolean option from the given input. * * This helper allows fallback for unbound and unvalidated input. It's not perfect--for example, * it can't deal with several short options squished together--but it's better than falling over * any time someone gives us unbound input. * * @return bool true if the option (or an alias) is present / private static function getOptionFromInput(InputInterface $input, array $names, array $otherParams = []): bool { // Best case, input is properly bound and validated. foreach ($names as $name) { if ($input->hasOption($name) && $input->getOption($name)) { return true; } } foreach ($names as $name) { $otherParams[] = '--'.$name; } foreach ($otherParams as $name) { if ($input->hasParameterOption($name, true)) { return true; } } return false; } /* * Get the desired verbosity from the given input. * * This is a bit more complext than the other options parsers. It handles `--quiet` and * `--verbose`, along with their short aliases, and fancy things like `-vvv`. * * @return string\|null configuration constant, or null if no verbosity option is specified / private static function getVerbosityFromInput(InputInterface $input) { // --quiet wins! if (self::getOptionFromInput($input, ['quiet'], ['-q'])) { return self::VERBOSITY_QUIET; } // Best case, input is properly bound and validated. // // Note that if the `--verbose` option is incorrectly defined as `VALUE_NONE` rather than // `VALUE_OPTIONAL` (as it is in Symfony Console by default) it doesn't actually work with // multiple verbosity levels as it claims. // // We can detect this by checking whether the the value === true, and fall back to unbound // parsing for this option. if ($input->hasOption('verbose') && $input->getOption('verbose') !== true) { switch ($input->getOption('verbose')) { case '-1': return self::VERBOSITY_QUIET; case '0': // explicitly normal, overrides config file default return self::VERBOSITY_NORMAL; case '1': case null: // `--verbose` and `-v` return self::VERBOSITY_VERBOSE; case '2': case 'v': // `-vv` return self::VERBOSITY_VERY_VERBOSE; case '3': case 'vv': // `-vvv` return self::VERBOSITY_DEBUG; default: // implicitly normal, config file default wins return; } } // quiet and normal have to come before verbose, because it eats everything else. if ($input->hasParameterOption('--verbose=-1', true) \|\| $input->getParameterOption('--verbose', false, true) === '-1') { return self::VERBOSITY_QUIET; } if ($input->hasParameterOption('--verbose=0', true) \|\| $input->getParameterOption('--verbose', false, true) === '0') { return self::VERBOSITY_NORMAL; } // `-vvv`, `-vv` and `-v` have to come in descending length order, because `hasParameterOption` matches prefixes. if ($input->hasParameterOption('-vvv', true) \|\| $input->hasParameterOption('--verbose=3', true) \|\| $input->getParameterOption('--verbose', false, true) === '3') { return self::VERBOSITY_DEBUG; } if ($input->hasParameterOption('-vv', true) \|\| $input->hasParameterOption('--verbose=2', true) \|\| $input->getParameterOption('--verbose', false, true) === '2') { return self::VERBOSITY_VERY_VERBOSE; } if ($input->hasParameterOption('-v', true) \|\| $input->hasParameterOption('--verbose=1', true) \|\| $input->hasParameterOption('--verbose', true)) { return self::VERBOSITY_VERBOSE; } } /* * Get a list of input options expected when initializing Configuration via input. * * @see self::fromInput * * @return InputOption[] / public static function getInputOptions(): array { return [ new InputOption('config', 'c', InputOption::VALUE_REQUIRED, 'Use an alternate PsySH config file location.'), new InputOption('cwd', null, InputOption::VALUE_REQUIRED, 'Use an alternate working directory.'), new InputOption('color', null, InputOption::VALUE_NONE, 'Force colors in output.'), new InputOption('no-color', null, InputOption::VALUE_NONE, 'Disable colors in output.'), // --ansi and --no-ansi aliases to match Symfony, Composer, etc. new InputOption('ansi', null, InputOption::VALUE_NONE, 'Force colors in output.'), new InputOption('no-ansi', null, InputOption::VALUE_NONE, 'Disable colors in output.'), new InputOption('quiet', 'q', InputOption::VALUE_NONE, 'Shhhhhh.'), new InputOption('verbose', 'v\|vv\|vvv', InputOption::VALUE_OPTIONAL, 'Increase the verbosity of messages.', '0'), new InputOption('compact', null, InputOption::VALUE_NONE, 'Run PsySH with compact output.'), new InputOption('interactive', 'i\|a', InputOption::VALUE_NONE, 'Force PsySH to run in interactive mode.'), new InputOption('no-interactive', 'n', InputOption::VALUE_NONE, 'Run PsySH without interactive input. Requires input from stdin.'), // --interaction and --no-interaction aliases for compatibility with Symfony, Composer, etc new InputOption('interaction', null, InputOption::VALUE_NONE, 'Force PsySH to run in interactive mode.'), new InputOption('no-interaction', null, InputOption::VALUE_NONE, 'Run PsySH without interactive input. Requires input from stdin.'), new InputOption('raw-output', 'r', InputOption::VALUE_NONE, 'Print var_export-style return values (for non-interactive input)'), new InputOption('self-update', 'u', InputOption::VALUE_NONE, 'Update to the latest version'), new InputOption('yolo', null, InputOption::VALUE_NONE, 'Run PsySH with minimal input validation. You probably don\'t want this.'), ]; } /* * Initialize the configuration. * * This checks for the presence of Readline and Pcntl extensions. * * If a config file is available, it will be loaded and merged with the current config. * * If no custom config file was specified and a local project config file * is available, it will be loaded and merged with the current config. / public function init() { // feature detection $this->hasReadline = \function_exists('readline'); $this->hasPcntl = ProcessForker::isSupported(); if ($configFile = $this->getConfigFile()) { $this->loadConfigFile($configFile); } if (!$this->configFile && $localConfig = $this->getLocalConfigFile()) { $this->loadConfigFile($localConfig); } $this->configPaths->overrideDirs([ 'configDir' => $this->configDir, 'dataDir' => $this->dataDir, 'runtimeDir' => $this->runtimeDir, ]); } /* * Get the current PsySH config file. * * If a `configFile` option was passed to the Configuration constructor, * this file will be returned. If not, all possible config directories will * be searched, and the first `config.php` or `rc.php` file which exists * will be returned. * * If you're trying to decide where to put your config file, pick * * ~/.config/psysh/config.php * * @return string\|null / public function getConfigFile() { if (isset($this->configFile)) { return $this->configFile; } $files = $this->configPaths->configFiles(['config.php', 'rc.php']); if (!empty($files)) { if ($this->warnOnMultipleConfigs && \count($files) > 1) { $msg = \sprintf('Multiple configuration files found: %s. Using %s', \implode(', ', $files), $files[0]); \trigger_error($msg, \E_USER_NOTICE); } return $files[0]; } } /* * Get the local PsySH config file. * * Searches for a project specific config file `.psysh.php` in the current * working directory. * * @return string\|null / public function getLocalConfigFile() { $localConfig = \getcwd().'/.psysh.php'; if (@\is_file($localConfig)) { return $localConfig; } } /* * Load configuration values from an array of options. * * @param array $options / public function loadConfig(array $options) { foreach (self::$AVAILABLE_OPTIONS as $option) { if (isset($options[$option])) { $method = 'set'.\ucfirst($option); $this->$method($options[$option]); } } // legacy `tabCompletion` option if (isset($options['tabCompletion'])) { $msg = '`tabCompletion` is deprecated; use `useTabCompletion` instead.'; @\trigger_error($msg, \E_USER_DEPRECATED); $this->setUseTabCompletion($options['tabCompletion']); } foreach (['commands', 'matchers', 'casters'] as $option) { if (isset($options[$option])) { $method = 'add'.\ucfirst($option); $this->$method($options[$option]); } } // legacy `tabCompletionMatchers` option if (isset($options['tabCompletionMatchers'])) { $msg = '`tabCompletionMatchers` is deprecated; use `matchers` instead.'; @\trigger_error($msg, \E_USER_DEPRECATED); $this->addMatchers($options['tabCompletionMatchers']); } } /* * Load a configuration file (default: `$HOME/.config/psysh/config.php`). * * This configuration instance will be available to the config file as $config. * The config file may directly manipulate the configuration, or may return * an array of options which will be merged with the current configuration. * * @throws \InvalidArgumentException if the config file does not exist or returns a non-array result * * @param string $file / public function loadConfigFile(string $file) { if (!\is_file($file)) { throw new \InvalidArgumentException(\sprintf('Invalid configuration file specified, %s does not exist', $file)); } $__psysh_config_file__ = $file; $load = function ($config) use ($__psysh_config_file__) { $result = require $__psysh_config_file__; if ($result !== 1) { return $result; } }; $result = $load($this); if (!empty($result)) { if (\is_array($result)) { $this->loadConfig($result); } else { throw new \InvalidArgumentException('Psy Shell configuration must return an array of options'); } } } /* * Set files to be included by default at the start of each shell session. * * @param array $includes / public function setDefaultIncludes(array $includes = []) { $this->defaultIncludes = $includes; } /* * Get files to be included by default at the start of each shell session. * * @return string[] / public function getDefaultIncludes(): array { return $this->defaultIncludes ?: []; } /* * Set the shell's config directory location. * * @param string $dir / public function setConfigDir(string $dir) { $this->configDir = (string) $dir; $this->configPaths->overrideDirs([ 'configDir' => $this->configDir, 'dataDir' => $this->dataDir, 'runtimeDir' => $this->runtimeDir, ]); } /* * Get the current configuration directory, if any is explicitly set. * * @return string\|null / public function getConfigDir() { return $this->configDir; } /* * Set the shell's data directory location. * * @param string $dir / public function setDataDir(string $dir) { $this->dataDir = (string) $dir; $this->configPaths->overrideDirs([ 'configDir' => $this->configDir, 'dataDir' => $this->dataDir, 'runtimeDir' => $this->runtimeDir, ]); } /* * Get the current data directory, if any is explicitly set. * * @return string\|null / public function getDataDir() { return $this->dataDir; } /* * Set the shell's temporary directory location. * * @param string $dir / public function setRuntimeDir(string $dir) { $this->runtimeDir = (string) $dir; $this->configPaths->overrideDirs([ 'configDir' => $this->configDir, 'dataDir' => $this->dataDir, 'runtimeDir' => $this->runtimeDir, ]); } /* * Get the shell's temporary directory location. * * Defaults to `/psysh` inside the system's temp dir unless explicitly * overridden. * * @throws RuntimeException if no temporary directory is set and it is not possible to create one / public function getRuntimeDir(): string { $runtimeDir = $this->configPaths->runtimeDir(); if (!\is_dir($runtimeDir)) { if (!@\mkdir($runtimeDir, 0700, true)) { throw new RuntimeException(\sprintf('Unable to create PsySH runtime directory. Make sure PHP is able to write to %s in order to continue.', \dirname($runtimeDir))); } } return $runtimeDir; } /* * Set the readline history file path. * * @param string $file / public function setHistoryFile(string $file) { $this->historyFile = ConfigPaths::touchFileWithMkdir($file); } /* * Get the readline history file path. * * Defaults to `/history` inside the shell's base config dir unless * explicitly overridden. / public function getHistoryFile(): string { if (isset($this->historyFile)) { return $this->historyFile; } $files = $this->configPaths->configFiles(['psysh_history', 'history']); if (!empty($files)) { if ($this->warnOnMultipleConfigs && \count($files) > 1) { $msg = \sprintf('Multiple history files found: %s. Using %s', \implode(', ', $files), $files[0]); \trigger_error($msg, \E_USER_NOTICE); } $this->setHistoryFile($files[0]); } else { // fallback: create our own history file $this->setHistoryFile($this->configPaths->currentConfigDir().'/psysh_history'); } return $this->historyFile; } /* * Set the readline max history size. * * @param int $value / public function setHistorySize(int $value) { $this->historySize = (int) $value; } /* * Get the readline max history size. * * @return int / public function getHistorySize() { return $this->historySize; } /* * Sets whether readline erases old duplicate history entries. * * @param bool $value / public function setEraseDuplicates(bool $value) { $this->eraseDuplicates = (bool) $value; } /* * Get whether readline erases old duplicate history entries. * * @return bool\|null / public function getEraseDuplicates() { return $this->eraseDuplicates; } /* * Get a temporary file of type $type for process $pid. * * The file will be created inside the current temporary directory. * * @see self::getRuntimeDir * * @param string $type * @param int $pid * * @return string Temporary file name / public function getTempFile(string $type, int $pid): string { return \tempnam($this->getRuntimeDir(), $type.'_'.$pid.'_'); } /* * Get a filename suitable for a FIFO pipe of $type for process $pid. * * The pipe will be created inside the current temporary directory. * * @param string $type * @param int $pid * * @return string Pipe name / public function getPipe(string $type, int $pid): string { return \sprintf('%s/%s_%s', $this->getRuntimeDir(), $type, $pid); } /* * Check whether this PHP instance has Readline available. * * @return bool True if Readline is available / public function hasReadline(): bool { return $this->hasReadline; } /* * Enable or disable Readline usage. * * @param bool $useReadline / public function setUseReadline(bool $useReadline) { $this->useReadline = (bool) $useReadline; } /* * Check whether to use Readline. * * If `setUseReadline` as been set to true, but Readline is not actually * available, this will return false. * * @return bool True if the current Shell should use Readline / public function useReadline(): bool { return isset($this->useReadline) ? ($this->hasReadline && $this->useReadline) : $this->hasReadline; } /* * Set the Psy Shell readline service. * * @param Readline\Readline $readline / public function setReadline(Readline\Readline $readline) { $this->readline = $readline; } /* * Get the Psy Shell readline service. * * By default, this service uses (in order of preference): * * * GNU Readline * * Libedit * * A transient array-based readline emulation. * * @return Readline\Readline / public function getReadline(): Readline\Readline { if (!isset($this->readline)) { $className = $this->getReadlineClass(); $this->readline = new $className( $this->getHistoryFile(), $this->getHistorySize(), $this->getEraseDuplicates() ); } return $this->readline; } /* * Get the appropriate Readline implementation class name. * * @see self::getReadline / private function getReadlineClass(): string { if ($this->useReadline()) { if (Readline\GNUReadline::isSupported()) { return Readline\GNUReadline::class; } elseif (Readline\Libedit::isSupported()) { return Readline\Libedit::class; } } if (Readline\Userland::isSupported()) { return Readline\Userland::class; } return Readline\Transient::class; } /* * Enable or disable bracketed paste. * * Note that this only works with readline (not libedit) integration for now. * * @param bool $useBracketedPaste / public function setUseBracketedPaste(bool $useBracketedPaste) { $this->useBracketedPaste = (bool) $useBracketedPaste; } /* * Check whether to use bracketed paste with readline. * * When this works, it's magical. Tabs in pastes don't try to autcomplete. * Newlines in paste don't execute code until you get to the end. It makes * readline act like you'd expect when pasting. * * But it often (usually?) does not work. And when it doesn't, it just spews * escape codes all over the place and generally makes things ugly :( * * If `useBracketedPaste` has been set to true, but the current readline * implementation is anything besides GNU readline, this will return false. * * @return bool True if the shell should use bracketed paste / public function useBracketedPaste(): bool { $readlineClass = $this->getReadlineClass(); return $this->useBracketedPaste && $readlineClass::supportsBracketedPaste(); // @todo mebbe turn this on by default some day? // return $readlineClass::supportsBracketedPaste() && $this->useBracketedPaste !== false; } /* * Check whether this PHP instance has Pcntl available. * * @return bool True if Pcntl is available / public function hasPcntl(): bool { return $this->hasPcntl; } /* * Enable or disable Pcntl usage. * * @param bool $usePcntl / public function setUsePcntl(bool $usePcntl) { $this->usePcntl = (bool) $usePcntl; } /* * Check whether to use Pcntl. * * If `setUsePcntl` has been set to true, but Pcntl is not actually * available, this will return false. * * @return bool True if the current Shell should use Pcntl / public function usePcntl(): bool { if (!isset($this->usePcntl)) { // Unless pcntl is explicitly enabled, don't use it while XDebug is debugging. // See https://github.com/bobthecow/psysh/issues/742 if (\function_exists('xdebug_is_debugger_active') && \xdebug_is_debugger_active()) { return false; } return $this->hasPcntl; } return $this->hasPcntl && $this->usePcntl; } /* * Check whether to use raw output. * * This is set by the --raw-output (-r) flag, and really only makes sense * when non-interactive, e.g. executing stdin. * * @return bool true if raw output is enabled / public function rawOutput(): bool { return $this->rawOutput; } /* * Enable or disable raw output. * * @param bool $rawOutput / public function setRawOutput(bool $rawOutput) { $this->rawOutput = (bool) $rawOutput; } /* * Enable or disable strict requirement of semicolons. * * @see self::requireSemicolons() * * @param bool $requireSemicolons / public function setRequireSemicolons(bool $requireSemicolons) { $this->requireSemicolons = (bool) $requireSemicolons; } /* * Check whether to require semicolons on all statements. * * By default, PsySH will automatically insert semicolons at the end of * statements if they're missing. To strictly require semicolons, set * `requireSemicolons` to true. / public function requireSemicolons(): bool { return $this->requireSemicolons; } /* * Enable or disable strict types enforcement. / public function setStrictTypes($strictTypes) { $this->strictTypes = (bool) $strictTypes; } /* * Check whether to enforce strict types. / public function strictTypes(): bool { return $this->strictTypes; } /* * Enable or disable Unicode in PsySH specific output. * * Note that this does not disable Unicode output in general, it just makes * it so PsySH won't output any itself. * * @param bool $useUnicode / public function setUseUnicode(bool $useUnicode) { $this->useUnicode = (bool) $useUnicode; } /* * Check whether to use Unicode in PsySH specific output. * * Note that this does not disable Unicode output in general, it just makes * it so PsySH won't output any itself. / public function useUnicode(): bool { if (isset($this->useUnicode)) { return $this->useUnicode; } // @todo detect `chsh` != 65001 on Windows and return false return true; } /* * Set the error logging level. * * @see self::errorLoggingLevel * * @param int $errorLoggingLevel / public function setErrorLoggingLevel($errorLoggingLevel) { $this->errorLoggingLevel = (\E_ALL \| \E_STRICT) & $errorLoggingLevel; } /* * Get the current error logging level. * * By default, PsySH will automatically log all errors, regardless of the * current `error_reporting` level. * * Set `errorLoggingLevel` to 0 to prevent logging non-thrown errors. Set it * to any valid error_reporting value to log only errors which match that * level. * * http://php.net/manual/en/function.error-reporting.php / public function errorLoggingLevel(): int { return $this->errorLoggingLevel; } /* * Set a CodeCleaner service instance. * * @param CodeCleaner $cleaner / public function setCodeCleaner(CodeCleaner $cleaner) { $this->cleaner = $cleaner; } /* * Get a CodeCleaner service instance. * * If none has been explicitly defined, this will create a new instance. / public function getCodeCleaner(): CodeCleaner { if (!isset($this->cleaner)) { $this->cleaner = new CodeCleaner(null, null, null, $this->yolo(), $this->strictTypes()); } return $this->cleaner; } /* * Enable or disable running PsySH without input validation. * * You don't want this. / public function setYolo($yolo) { $this->yolo = (bool) $yolo; } /* * Check whether to disable input validation. / public function yolo(): bool { return $this->yolo; } /* * Enable or disable tab completion. * * @param bool $useTabCompletion / public function setUseTabCompletion(bool $useTabCompletion) { $this->useTabCompletion = (bool) $useTabCompletion; } /* * @deprecated Call `setUseTabCompletion` instead * * @param bool $useTabCompletion / public function setTabCompletion(bool $useTabCompletion) { $this->setUseTabCompletion($useTabCompletion); } /* * Check whether to use tab completion. * * If `setUseTabCompletion` has been set to true, but readline is not * actually available, this will return false. * * @return bool True if the current Shell should use tab completion / public function useTabCompletion(): bool { return isset($this->useTabCompletion) ? ($this->hasReadline && $this->useTabCompletion) : $this->hasReadline; } /* * @deprecated Call `useTabCompletion` instead / public function getTabCompletion(): bool { return $this->useTabCompletion(); } /* * Set the Shell Output service. * * @param ShellOutput $output / public function setOutput(ShellOutput $output) { $this->output = $output; $this->pipedOutput = null; // Reset cached pipe info if (isset($this->theme)) { $output->setTheme($this->theme); } $this->applyFormatterStyles(); } /* * Get a Shell Output service instance. * * If none has been explicitly provided, this will create a new instance * with the configured verbosity and output pager supplied by self::getPager * * @see self::verbosity * @see self::getPager / public function getOutput(): ShellOutput { if (!isset($this->output)) { $this->setOutput(new ShellOutput( $this->getOutputVerbosity(), null, null, $this->getPager() ?: null, $this->theme() )); // This is racy because `getOutputDecorated` needs access to the // output stream to figure out if it's piped or not, so create it // first, then update after we have a stream. $decorated = $this->getOutputDecorated(); if ($decorated !== null) { $this->output->setDecorated($decorated); } } return $this->output; } /* * Get the decoration (i.e. color) setting for the Shell Output service. * * @return bool\|null 3-state boolean corresponding to the current color mode / public function getOutputDecorated() { switch ($this->colorMode()) { case self::COLOR_MODE_FORCED: return true; case self::COLOR_MODE_DISABLED: return false; case self::COLOR_MODE_AUTO: default: return $this->outputIsPiped() ? false : null; } } /* * Get the interactive setting for shell input. / public function getInputInteractive(): bool { switch ($this->interactiveMode()) { case self::INTERACTIVE_MODE_FORCED: return true; case self::INTERACTIVE_MODE_DISABLED: return false; case self::INTERACTIVE_MODE_AUTO: default: return !$this->inputIsPiped(); } } /* * Set the OutputPager service. * * If a string is supplied, a ProcOutputPager will be used which shells out * to the specified command. * * `cat` is special-cased to use the PassthruPager directly. * * @throws \InvalidArgumentException if $pager is not a string or OutputPager instance * * @param string\|OutputPager\|false $pager / public function setPager($pager) { if ($pager === null \|\| $pager === false \|\| $pager === 'cat') { $pager = false; } if ($pager !== false && !\is_string($pager) && !$pager instanceof OutputPager) { throw new \InvalidArgumentException('Unexpected pager instance'); } $this->pager = $pager; } /* * Get an OutputPager instance or a command for an external Proc pager. * * If no Pager has been explicitly provided, and Pcntl is available, this * will default to `cli.pager` ini value, falling back to `which less`. * * @return string\|OutputPager\|false / public function getPager() { if (!isset($this->pager) && $this->usePcntl()) { if (\getenv('TERM') === 'dumb') { return false; } if ($pager = \ini_get('cli.pager')) { // use the default pager $this->pager = $pager; } elseif ($less = $this->configPaths->which('less')) { // check for the presence of less... $this->pager = $less.' -R -F -X'; } } return $this->pager; } /* * Set the Shell AutoCompleter service. * * @param AutoCompleter $autoCompleter / public function setAutoCompleter(AutoCompleter $autoCompleter) { $this->autoCompleter = $autoCompleter; } /* * Get an AutoCompleter service instance. / public function getAutoCompleter(): AutoCompleter { if (!isset($this->autoCompleter)) { $this->autoCompleter = new AutoCompleter(); } return $this->autoCompleter; } /* * @deprecated Nothing should be using this anymore / public function getTabCompletionMatchers(): array { return []; } /* * Add tab completion matchers to the AutoCompleter. * * This will buffer new matchers in the event that the Shell has not yet * been instantiated. This allows the user to specify matchers in their * config rc file, despite the fact that their file is needed in the Shell * constructor. * * @param array $matchers / public function addMatchers(array $matchers) { $this->newMatchers = \array_merge($this->newMatchers, $matchers); if (isset($this->shell)) { $this->doAddMatchers(); } } /* * Internal method for adding tab completion matchers. This will set any new * matchers once a Shell is available. / private function doAddMatchers() { if (!empty($this->newMatchers)) { $this->shell->addMatchers($this->newMatchers); $this->newMatchers = []; } } /* * @deprecated Use `addMatchers` instead * * @param array $matchers / public function addTabCompletionMatchers(array $matchers) { $this->addMatchers($matchers); } /* * Add commands to the Shell. * * This will buffer new commands in the event that the Shell has not yet * been instantiated. This allows the user to specify commands in their * config rc file, despite the fact that their file is needed in the Shell * constructor. * * @param array $commands / public function addCommands(array $commands) { $this->newCommands = \array_merge($this->newCommands, $commands); if (isset($this->shell)) { $this->doAddCommands(); } } /* * Internal method for adding commands. This will set any new commands once * a Shell is available. / private function doAddCommands() { if (!empty($this->newCommands)) { $this->shell->addCommands($this->newCommands); $this->newCommands = []; } } /* * Set the Shell backreference and add any new commands to the Shell. * * @param Shell $shell / public function setShell(Shell $shell) { $this->shell = $shell; $this->doAddCommands(); $this->doAddMatchers(); } /* * Set the PHP manual database file. * * This file should be an SQLite database generated from the phpdoc source * with the `bin/build_manual` script. * * @param string $filename / public function setManualDbFile(string $filename) { $this->manualDbFile = (string) $filename; } /* * Get the current PHP manual database file. * * @return string\|null Default: '~/.local/share/psysh/php_manual.sqlite' / public function getManualDbFile() { if (isset($this->manualDbFile)) { return $this->manualDbFile; } $files = $this->configPaths->dataFiles(['php_manual.sqlite']); if (!empty($files)) { if ($this->warnOnMultipleConfigs && \count($files) > 1) { $msg = \sprintf('Multiple manual database files found: %s. Using %s', \implode(', ', $files), $files[0]); \trigger_error($msg, \E_USER_NOTICE); } return $this->manualDbFile = $files[0]; } } /* * Get a PHP manual database connection. * * @return \PDO\|null / public function getManualDb() { if (!isset($this->manualDb)) { $dbFile = $this->getManualDbFile(); if ($dbFile !== null && \is_file($dbFile)) { try { $this->manualDb = new \PDO('sqlite:'.$dbFile); } catch (\PDOException $e) { if ($e->getMessage() === 'could not find driver') { throw new RuntimeException('SQLite PDO driver not found', 0, $e); } else { throw $e; } } } } return $this->manualDb; } /* * Add an array of casters definitions. * * @param array $casters / public function addCasters(array $casters) { $this->getPresenter()->addCasters($casters); } /* * Get the Presenter service. / public function getPresenter(): Presenter { if (!isset($this->presenter)) { $this->presenter = new Presenter($this->getOutput()->getFormatter(), $this->forceArrayIndexes()); } return $this->presenter; } /* * Enable or disable warnings on multiple configuration or data files. * * @see self::warnOnMultipleConfigs() * * @param bool $warnOnMultipleConfigs / public function setWarnOnMultipleConfigs(bool $warnOnMultipleConfigs) { $this->warnOnMultipleConfigs = (bool) $warnOnMultipleConfigs; } /* * Check whether to warn on multiple configuration or data files. * * By default, PsySH will use the file with highest precedence, and will * silently ignore all others. With this enabled, a warning will be emitted * (but not an exception thrown) if multiple configuration or data files * are found. * * This will default to true in a future release, but is false for now. / public function warnOnMultipleConfigs(): bool { return $this->warnOnMultipleConfigs; } /* * Set the current color mode. * * @throws \InvalidArgumentException if the color mode isn't auto, forced or disabled * * @param string $colorMode / public function setColorMode(string $colorMode) { $validColorModes = [ self::COLOR_MODE_AUTO, self::COLOR_MODE_FORCED, self::COLOR_MODE_DISABLED, ]; if (!\in_array($colorMode, $validColorModes)) { throw new \InvalidArgumentException('Invalid color mode: '.$colorMode); } $this->colorMode = $colorMode; } /* * Get the current color mode. / public function colorMode(): string { return $this->colorMode; } /* * Set the shell's interactive mode. * * @throws \InvalidArgumentException if interactive mode isn't disabled, forced, or auto * * @param string $interactiveMode / public function setInteractiveMode(string $interactiveMode) { $validInteractiveModes = [ self::INTERACTIVE_MODE_AUTO, self::INTERACTIVE_MODE_FORCED, self::INTERACTIVE_MODE_DISABLED, ]; if (!\in_array($interactiveMode, $validInteractiveModes)) { throw new \InvalidArgumentException('Invalid interactive mode: '.$interactiveMode); } $this->interactiveMode = $interactiveMode; } /* * Get the current interactive mode. / public function interactiveMode(): string { return $this->interactiveMode; } /* * Set an update checker service instance. * * @param Checker $checker / public function setChecker(Checker $checker) { $this->checker = $checker; } /* * Get an update checker service instance. * * If none has been explicitly defined, this will create a new instance. / public function getChecker(): Checker { if (!isset($this->checker)) { $interval = $this->getUpdateCheck(); switch ($interval) { case Checker::ALWAYS: $this->checker = new GitHubChecker(); break; case Checker::DAILY: case Checker::WEEKLY: case Checker::MONTHLY: $checkFile = $this->getUpdateCheckCacheFile(); if ($checkFile === false) { $this->checker = new NoopChecker(); } else { $this->checker = new IntervalChecker($checkFile, $interval); } break; case Checker::NEVER: $this->checker = new NoopChecker(); break; } } return $this->checker; } /* * Get the current update check interval. * * One of 'always', 'daily', 'weekly', 'monthly' or 'never'. If none is * explicitly set, default to 'weekly'. / public function getUpdateCheck(): string { return isset($this->updateCheck) ? $this->updateCheck : Checker::WEEKLY; } /* * Set the update check interval. * * @throws \InvalidArgumentException if the update check interval is unknown * * @param string $interval / public function setUpdateCheck(string $interval) { $validIntervals = [ Checker::ALWAYS, Checker::DAILY, Checker::WEEKLY, Checker::MONTHLY, Checker::NEVER, ]; if (!\in_array($interval, $validIntervals)) { throw new \InvalidArgumentException('Invalid update check interval: '.$interval); } $this->updateCheck = $interval; } /* * Get a cache file path for the update checker. * * @return string\|false Return false if config file/directory is not writable / public function getUpdateCheckCacheFile() { return ConfigPaths::touchFileWithMkdir($this->configPaths->currentConfigDir().'/update_check.json'); } /* * Set the startup message. * * @param string $message / public function setStartupMessage(string $message) { $this->startupMessage = $message; } /* * Get the startup message. * * @return string\|null / public function getStartupMessage() { return $this->startupMessage; } /* * Set the prompt. * * @deprecated The `prompt` configuration has been replaced by Themes and support will * eventually be removed. In the meantime, prompt is applied first by the Theme, then overridden * by any explicitly defined prompt. * * Note that providing a prompt but not a theme config will implicitly use the `classic` theme. / public function setPrompt(string $prompt) { $this->prompt = $prompt; if (isset($this->theme)) { $this->theme->setPrompt($prompt); } } /* * Get the prompt. * * @return string\|null / public function getPrompt() { return $this->prompt; } /* * Get the force array indexes. / public function forceArrayIndexes(): bool { return $this->forceArrayIndexes; } /* * Set the force array indexes. * * @param bool $forceArrayIndexes / public function setForceArrayIndexes(bool $forceArrayIndexes) { $this->forceArrayIndexes = $forceArrayIndexes; } /* * Set the current output Theme. * * @param Theme\|string\|array $theme Theme (or Theme config) / public function setTheme($theme) { if (!$theme instanceof Theme) { $theme = new Theme($theme); } $this->theme = $theme; if (isset($this->prompt)) { $this->theme->setPrompt($this->prompt); } if (isset($this->output)) { $this->output->setTheme($theme); $this->applyFormatterStyles(); } } /* * Get the current output Theme. / public function theme(): Theme { if (!isset($this->theme)) { // If a prompt is explicitly set, and a theme is not, base it on the `classic` theme. $this->theme = $this->prompt ? new Theme('classic') : new Theme(); } if (isset($this->prompt)) { $this->theme->setPrompt($this->prompt); } return $this->theme; } /* * Set the shell output formatter styles. * * Accepts a map from style name to [fg, bg, options], for example: * * [ * 'error' => ['white', 'red', ['bold']], * 'warning' => ['black', 'yellow'], * ] * * Foreground, background or options can be null, or even omitted entirely. * * @deprecated The `formatterStyles` configuration has been replaced by Themes and support will * eventually be removed. In the meantime, styles are applied first by the Theme, then * overridden by any explicitly defined formatter styles. / public function setFormatterStyles(array $formatterStyles) { foreach ($formatterStyles as $name => $style) { $this->formatterStyles[$name] = new OutputFormatterStyle(...$style); } if (isset($this->output)) { $this->applyFormatterStyles(); } } /* * Internal method for applying output formatter style customization. * * This is called on initialization of the shell output, and again if the * formatter styles config is updated. * * @deprecated The `formatterStyles` configuration has been replaced by Themes and support will * eventually be removed. In the meantime, styles are applied first by the Theme, then * overridden by any explicitly defined formatter styles. / private function applyFormatterStyles() { $formatter = $this->output->getFormatter(); foreach ($this->formatterStyles as $name => $style) { $formatter->setStyle($name, $style); } $errorFormatter = $this->output->getErrorOutput()->getFormatter(); foreach (Theme::ERROR_STYLES as $name) { if (isset($this->formatterStyles[$name])) { $errorFormatter->setStyle($name, $this->formatterStyles[$name]); } } } /* * Get the configured output verbosity. / public function verbosity(): string { return $this->verbosity; } /* * Set the shell output verbosity. * * Accepts OutputInterface verbosity constants. * * @throws \InvalidArgumentException if verbosity level is invalid * * @param string $verbosity / public function setVerbosity(string $verbosity) { $validVerbosityLevels = [ self::VERBOSITY_QUIET, self::VERBOSITY_NORMAL, self::VERBOSITY_VERBOSE, self::VERBOSITY_VERY_VERBOSE, self::VERBOSITY_DEBUG, ]; if (!\in_array($verbosity, $validVerbosityLevels)) { throw new \InvalidArgumentException('Invalid verbosity level: '.$verbosity); } $this->verbosity = $verbosity; if (isset($this->output)) { $this->output->setVerbosity($this->getOutputVerbosity()); } } /* * Map the verbosity configuration to OutputInterface verbosity constants. * * @return int OutputInterface verbosity level / public function getOutputVerbosity(): int { switch ($this->verbosity()) { case self::VERBOSITY_QUIET: return OutputInterface::VERBOSITY_QUIET; case self::VERBOSITY_VERBOSE: return OutputInterface::VERBOSITY_VERBOSE; case self::VERBOSITY_VERY_VERBOSE: return OutputInterface::VERBOSITY_VERY_VERBOSE; case self::VERBOSITY_DEBUG: return OutputInterface::VERBOSITY_DEBUG; case self::VERBOSITY_NORMAL: default: return OutputInterface::VERBOSITY_NORMAL; } } /* * Guess whether stdin is piped. * * This is mostly useful for deciding whether to use non-interactive mode. / public function inputIsPiped(): bool { if ($this->pipedInput === null) { $this->pipedInput = \defined('STDIN') && self::looksLikeAPipe(\STDIN); } return $this->pipedInput; } /* * Guess whether shell output is piped. * * This is mostly useful for deciding whether to use non-decorated output. / public function outputIsPiped(): bool { if ($this->pipedOutput === null) { $this->pipedOutput = self::looksLikeAPipe($this->getOutput()->getStream()); } return $this->pipedOutput; } /* * Guess whether an input or output stream is piped. * * @param resource\|int $stream */ private static function looksLikeAPipe($stream): bool { if (\function_exists('posix_isatty')) { return !\posix_isatty($stream); } $stat = \fstat($stream); $mode = $stat['mode'] & 0170000; return $mode === 0010000 \|\| $mode === 0040000 \|\| $mode === 0100000 \|\| $mode === 0120000; } } Back

Edit File : Configuration.php | Size : 54.88 KB

<?php

/*
 * This file is part of Psy Shell.
 *
 * (c) 2012-2023 Justin Hileman
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */

namespace Psy;

use Psy\Exception\DeprecatedException;
use Psy\Exception\RuntimeException;
use Psy\ExecutionLoop\ProcessForker;
use Psy\Output\OutputPager;
use Psy\Output\ShellOutput;
use Psy\Output\Theme;
use Psy\TabCompletion\AutoCompleter;
use Psy\VarDumper\Presenter;
use Psy\VersionUpdater\Checker;
use Psy\VersionUpdater\GitHubChecker;
use Psy\VersionUpdater\IntervalChecker;
use Psy\VersionUpdater\NoopChecker;
use Symfony\Component\Console\Formatter\OutputFormatterStyle;
use Symfony\Component\Console\Input\InputInterface;
use Symfony\Component\Console\Input\InputOption;
use Symfony\Component\Console\Output\OutputInterface;

/**
 * The Psy Shell configuration.
 */
class Configuration
{
    const COLOR_MODE_AUTO = 'auto';
    const COLOR_MODE_FORCED = 'forced';
    const COLOR_MODE_DISABLED = 'disabled';

const INTERACTIVE_MODE_AUTO = 'auto';
    const INTERACTIVE_MODE_FORCED = 'forced';
    const INTERACTIVE_MODE_DISABLED = 'disabled';

const VERBOSITY_QUIET = 'quiet';
    const VERBOSITY_NORMAL = 'normal';
    const VERBOSITY_VERBOSE = 'verbose';
    const VERBOSITY_VERY_VERBOSE = 'very_verbose';
    const VERBOSITY_DEBUG = 'debug';

private static $AVAILABLE_OPTIONS = [
        'codeCleaner',
        'colorMode',
        'configDir',
        'dataDir',
        'defaultIncludes',
        'eraseDuplicates',
        'errorLoggingLevel',
        'forceArrayIndexes',
        'formatterStyles',
        'historyFile',
        'historySize',
        'interactiveMode',
        'manualDbFile',
        'pager',
        'prompt',
        'rawOutput',
        'requireSemicolons',
        'runtimeDir',
        'startupMessage',
        'strictTypes',
        'theme',
        'updateCheck',
        'useBracketedPaste',
        'usePcntl',
        'useReadline',
        'useTabCompletion',
        'useUnicode',
        'verbosity',
        'warnOnMultipleConfigs',
        'yolo',
    ];

private $defaultIncludes;
    private $configDir;
    private $dataDir;
    private $runtimeDir;
    private $configFile;
    /** @var string|false */
    private $historyFile;
    private $historySize;
    private $eraseDuplicates;
    private $manualDbFile;
    private $hasReadline;
    private $useReadline;
    private $useBracketedPaste;
    private $hasPcntl;
    private $usePcntl;
    private $newCommands = [];
    private $pipedInput;
    private $pipedOutput;
    private $rawOutput = false;
    private $requireSemicolons = false;
    private $strictTypes = false;
    private $useUnicode;
    private $useTabCompletion;
    private $newMatchers = [];
    private $errorLoggingLevel = \E_ALL;
    private $warnOnMultipleConfigs = false;
    private $colorMode = self::COLOR_MODE_AUTO;
    private $interactiveMode = self::INTERACTIVE_MODE_AUTO;
    private $updateCheck;
    private $startupMessage;
    private $forceArrayIndexes = false;
    /** @deprecated */
    private $formatterStyles = [];
    private $verbosity = self::VERBOSITY_NORMAL;
    private $yolo = false;
    /** @var Theme */
    private $theme;

// services
    private $readline;
    /** @var ShellOutput */
    private $output;
    private $shell;
    private $cleaner;
    private $pager;
    private $manualDb;
    private $presenter;
    private $autoCompleter;
    private $checker;
    /** @deprecated */
    private $prompt;
    private $configPaths;

/**
     * Construct a Configuration instance.
     *
     * Optionally, supply an array of configuration values to load.
     *
     * @param array $config Optional array of configuration values
     */
    public function __construct(array $config = [])
    {
        $this->configPaths = new ConfigPaths();

// explicit configFile option
        if (isset($config['configFile'])) {
            $this->configFile = $config['configFile'];
        } elseif (isset($_SERVER['PSYSH_CONFIG']) && $_SERVER['PSYSH_CONFIG']) {
            $this->configFile = $_SERVER['PSYSH_CONFIG'];
        } elseif (\PHP_SAPI === 'cli-server' && ($configFile = \getenv('PSYSH_CONFIG'))) {
            $this->configFile = $configFile;
        }

// legacy baseDir option
        if (isset($config['baseDir'])) {
            $msg = "The 'baseDir' configuration option is deprecated; ".
                "please specify 'configDir' and 'dataDir' options instead";
            throw new DeprecatedException($msg);
        }

unset($config['configFile'], $config['baseDir']);

// go go gadget, config!
        $this->loadConfig($config);
        $this->init();
    }

/**
     * Construct a Configuration object from Symfony Console input.
     *
     * This is great for adding psysh-compatible command line options to framework- or app-specific
     * wrappers.
     *
     * $input should already be bound to an appropriate InputDefinition (see self::getInputOptions
     * if you want to build your own) before calling this method. It's not required, but things work
     * a lot better if we do.
     *
     * @see self::getInputOptions
     *
     * @throws \InvalidArgumentException
     *
     * @param InputInterface $input
     */
    public static function fromInput(InputInterface $input): self
    {
        $config = new self(['configFile' => self::getConfigFileFromInput($input)]);

// Handle --color and --no-color (and --ansi and --no-ansi aliases)
        if (self::getOptionFromInput($input, ['color', 'ansi'])) {
            $config->setColorMode(self::COLOR_MODE_FORCED);
        } elseif (self::getOptionFromInput($input, ['no-color', 'no-ansi'])) {
            $config->setColorMode(self::COLOR_MODE_DISABLED);
        }

// Handle verbosity options
        if ($verbosity = self::getVerbosityFromInput($input)) {
            $config->setVerbosity($verbosity);
        }

// Handle interactive mode
        if (self::getOptionFromInput($input, ['interactive', 'interaction'], ['-a', '-i'])) {
            $config->setInteractiveMode(self::INTERACTIVE_MODE_FORCED);
        } elseif (self::getOptionFromInput($input, ['no-interactive', 'no-interaction'], ['-n'])) {
            $config->setInteractiveMode(self::INTERACTIVE_MODE_DISABLED);
        }

// Handle --compact
        if (self::getOptionFromInput($input, ['compact'])) {
            $config->setTheme('compact');
        }

// Handle --raw-output
        // @todo support raw output with interactive input?
        if (!$config->getInputInteractive()) {
            if (self::getOptionFromInput($input, ['raw-output'], ['-r'])) {
                $config->setRawOutput(true);
            }
        }

// Handle --yolo
        if (self::getOptionFromInput($input, ['yolo'])) {
            $config->setYolo(true);
        }

return $config;
    }

/**
     * Get the desired config file from the given input.
     *
     * @return string|null config file path, or null if none is specified
     */
    private static function getConfigFileFromInput(InputInterface $input)
    {
        // Best case, input is properly bound and validated.
        if ($input->hasOption('config')) {
            return $input->getOption('config');
        }

return $input->getParameterOption('--config', null, true) ?: $input->getParameterOption('-c', null, true);
    }

/**
     * Get a boolean option from the given input.
     *
     * This helper allows fallback for unbound and unvalidated input. It's not perfect--for example,
     * it can't deal with several short options squished together--but it's better than falling over
     * any time someone gives us unbound input.
     *
     * @return bool true if the option (or an alias) is present
     */
    private static function getOptionFromInput(InputInterface $input, array $names, array $otherParams = []): bool
    {
        // Best case, input is properly bound and validated.
        foreach ($names as $name) {
            if ($input->hasOption($name) && $input->getOption($name)) {
                return true;
            }
        }

foreach ($names as $name) {
            $otherParams[] = '--'.$name;
        }

foreach ($otherParams as $name) {
            if ($input->hasParameterOption($name, true)) {
                return true;
            }
        }

return false;
    }

/**
     * Get the desired verbosity from the given input.
     *
     * This is a bit more complext than the other options parsers. It handles `--quiet` and
     * `--verbose`, along with their short aliases, and fancy things like `-vvv`.
     *
     * @return string|null configuration constant, or null if no verbosity option is specified
     */
    private static function getVerbosityFromInput(InputInterface $input)
    {
        // --quiet wins!
        if (self::getOptionFromInput($input, ['quiet'], ['-q'])) {
            return self::VERBOSITY_QUIET;
        }

// Best case, input is properly bound and validated.
        //
        // Note that if the `--verbose` option is incorrectly defined as `VALUE_NONE` rather than
        // `VALUE_OPTIONAL` (as it is in Symfony Console by default) it doesn't actually work with
        // multiple verbosity levels as it claims.
        //
        // We can detect this by checking whether the the value === true, and fall back to unbound
        // parsing for this option.
        if ($input->hasOption('verbose') && $input->getOption('verbose') !== true) {
            switch ($input->getOption('verbose')) {
                case '-1':
                    return self::VERBOSITY_QUIET;
                case '0': // explicitly normal, overrides config file default
                    return self::VERBOSITY_NORMAL;
                case '1':
                case null: // `--verbose` and `-v`
                    return self::VERBOSITY_VERBOSE;
                case '2':
                case 'v': // `-vv`
                    return self::VERBOSITY_VERY_VERBOSE;
                case '3':
                case 'vv': // `-vvv`
                    return self::VERBOSITY_DEBUG;
                default: // implicitly normal, config file default wins
                    return;
            }
        }

// quiet and normal have to come before verbose, because it eats everything else.
        if ($input->hasParameterOption('--verbose=-1', true) || $input->getParameterOption('--verbose', false, true) === '-1') {
            return self::VERBOSITY_QUIET;
        }

if ($input->hasParameterOption('--verbose=0', true) || $input->getParameterOption('--verbose', false, true) === '0') {
            return self::VERBOSITY_NORMAL;
        }

// `-vvv`, `-vv` and `-v` have to come in descending length order, because `hasParameterOption` matches prefixes.
        if ($input->hasParameterOption('-vvv', true) || $input->hasParameterOption('--verbose=3', true) || $input->getParameterOption('--verbose', false, true) === '3') {
            return self::VERBOSITY_DEBUG;
        }

if ($input->hasParameterOption('-vv', true) || $input->hasParameterOption('--verbose=2', true) || $input->getParameterOption('--verbose', false, true) === '2') {
            return self::VERBOSITY_VERY_VERBOSE;
        }

if ($input->hasParameterOption('-v', true) || $input->hasParameterOption('--verbose=1', true) || $input->hasParameterOption('--verbose', true)) {
            return self::VERBOSITY_VERBOSE;
        }
    }

/**
     * Get a list of input options expected when initializing Configuration via input.
     *
     * @see self::fromInput
     *
     * @return InputOption[]
     */
    public static function getInputOptions(): array
    {
        return [
            new InputOption('config', 'c', InputOption::VALUE_REQUIRED, 'Use an alternate PsySH config file location.'),
            new InputOption('cwd', null, InputOption::VALUE_REQUIRED, 'Use an alternate working directory.'),

new InputOption('color', null, InputOption::VALUE_NONE, 'Force colors in output.'),
            new InputOption('no-color', null, InputOption::VALUE_NONE, 'Disable colors in output.'),
            // --ansi and --no-ansi aliases to match Symfony, Composer, etc.
            new InputOption('ansi', null, InputOption::VALUE_NONE, 'Force colors in output.'),
            new InputOption('no-ansi', null, InputOption::VALUE_NONE, 'Disable colors in output.'),

new InputOption('quiet', 'q', InputOption::VALUE_NONE, 'Shhhhhh.'),
            new InputOption('verbose', 'v|vv|vvv', InputOption::VALUE_OPTIONAL, 'Increase the verbosity of messages.', '0'),
            new InputOption('compact', null, InputOption::VALUE_NONE, 'Run PsySH with compact output.'),
            new InputOption('interactive', 'i|a', InputOption::VALUE_NONE, 'Force PsySH to run in interactive mode.'),
            new InputOption('no-interactive', 'n', InputOption::VALUE_NONE, 'Run PsySH without interactive input. Requires input from stdin.'),
            // --interaction and --no-interaction aliases for compatibility with Symfony, Composer, etc
            new InputOption('interaction', null, InputOption::VALUE_NONE, 'Force PsySH to run in interactive mode.'),
            new InputOption('no-interaction', null, InputOption::VALUE_NONE, 'Run PsySH without interactive input. Requires input from stdin.'),
            new InputOption('raw-output', 'r', InputOption::VALUE_NONE, 'Print var_export-style return values (for non-interactive input)'),

new InputOption('self-update', 'u', InputOption::VALUE_NONE, 'Update to the latest version'),

new InputOption('yolo', null, InputOption::VALUE_NONE, 'Run PsySH with minimal input validation. You probably don\'t want this.'),
        ];
    }

/**
     * Initialize the configuration.
     *
     * This checks for the presence of Readline and Pcntl extensions.
     *
     * If a config file is available, it will be loaded and merged with the current config.
     *
     * If no custom config file was specified and a local project config file
     * is available, it will be loaded and merged with the current config.
     */
    public function init()
    {
        // feature detection
        $this->hasReadline = \function_exists('readline');
        $this->hasPcntl = ProcessForker::isSupported();

if ($configFile = $this->getConfigFile()) {
            $this->loadConfigFile($configFile);
        }

if (!$this->configFile && $localConfig = $this->getLocalConfigFile()) {
            $this->loadConfigFile($localConfig);
        }

$this->configPaths->overrideDirs([
            'configDir'  => $this->configDir,
            'dataDir'    => $this->dataDir,
            'runtimeDir' => $this->runtimeDir,
        ]);
    }

/**
     * Get the current PsySH config file.
     *
     * If a `configFile` option was passed to the Configuration constructor,
     * this file will be returned. If not, all possible config directories will
     * be searched, and the first `config.php` or `rc.php` file which exists
     * will be returned.
     *
     * If you're trying to decide where to put your config file, pick
     *
     *     ~/.config/psysh/config.php
     *
     * @return string|null
     */
    public function getConfigFile()
    {
        if (isset($this->configFile)) {
            return $this->configFile;
        }

$files = $this->configPaths->configFiles(['config.php', 'rc.php']);

if (!empty($files)) {
            if ($this->warnOnMultipleConfigs && \count($files) > 1) {
                $msg = \sprintf('Multiple configuration files found: %s. Using %s', \implode(', ', $files), $files[0]);
                \trigger_error($msg, \E_USER_NOTICE);
            }

return $files[0];
        }
    }

/**
     * Get the local PsySH config file.
     *
     * Searches for a project specific config file `.psysh.php` in the current
     * working directory.
     *
     * @return string|null
     */
    public function getLocalConfigFile()
    {
        $localConfig = \getcwd().'/.psysh.php';

if (@\is_file($localConfig)) {
            return $localConfig;
        }
    }

/**
     * Load configuration values from an array of options.
     *
     * @param array $options
     */
    public function loadConfig(array $options)
    {
        foreach (self::$AVAILABLE_OPTIONS as $option) {
            if (isset($options[$option])) {
                $method = 'set'.\ucfirst($option);
                $this->$method($options[$option]);
            }
        }

// legacy `tabCompletion` option
        if (isset($options['tabCompletion'])) {
            $msg = '`tabCompletion` is deprecated; use `useTabCompletion` instead.';
            @\trigger_error($msg, \E_USER_DEPRECATED);

$this->setUseTabCompletion($options['tabCompletion']);
        }

foreach (['commands', 'matchers', 'casters'] as $option) {
            if (isset($options[$option])) {
                $method = 'add'.\ucfirst($option);
                $this->$method($options[$option]);
            }
        }

// legacy `tabCompletionMatchers` option
        if (isset($options['tabCompletionMatchers'])) {
            $msg = '`tabCompletionMatchers` is deprecated; use `matchers` instead.';
            @\trigger_error($msg, \E_USER_DEPRECATED);

$this->addMatchers($options['tabCompletionMatchers']);
        }
    }

/**
     * Load a configuration file (default: `$HOME/.config/psysh/config.php`).
     *
     * This configuration instance will be available to the config file as $config.
     * The config file may directly manipulate the configuration, or may return
     * an array of options which will be merged with the current configuration.
     *
     * @throws \InvalidArgumentException if the config file does not exist or returns a non-array result
     *
     * @param string $file
     */
    public function loadConfigFile(string $file)
    {
        if (!\is_file($file)) {
            throw new \InvalidArgumentException(\sprintf('Invalid configuration file specified, %s does not exist', $file));
        }

$__psysh_config_file__ = $file;
        $load = function ($config) use ($__psysh_config_file__) {
            $result = require $__psysh_config_file__;
            if ($result !== 1) {
                return $result;
            }
        };
        $result = $load($this);

if (!empty($result)) {
            if (\is_array($result)) {
                $this->loadConfig($result);
            } else {
                throw new \InvalidArgumentException('Psy Shell configuration must return an array of options');
            }
        }
    }

/**
     * Set files to be included by default at the start of each shell session.
     *
     * @param array $includes
     */
    public function setDefaultIncludes(array $includes = [])
    {
        $this->defaultIncludes = $includes;
    }

/**
     * Get files to be included by default at the start of each shell session.
     *
     * @return string[]
     */
    public function getDefaultIncludes(): array
    {
        return $this->defaultIncludes ?: [];
    }

/**
     * Set the shell's config directory location.
     *
     * @param string $dir
     */
    public function setConfigDir(string $dir)
    {
        $this->configDir = (string) $dir;

$this->configPaths->overrideDirs([
            'configDir'  => $this->configDir,
            'dataDir'    => $this->dataDir,
            'runtimeDir' => $this->runtimeDir,
        ]);
    }

/**
     * Get the current configuration directory, if any is explicitly set.
     *
     * @return string|null
     */
    public function getConfigDir()
    {
        return $this->configDir;
    }

/**
     * Set the shell's data directory location.
     *
     * @param string $dir
     */
    public function setDataDir(string $dir)
    {
        $this->dataDir = (string) $dir;

$this->configPaths->overrideDirs([
            'configDir'  => $this->configDir,
            'dataDir'    => $this->dataDir,
            'runtimeDir' => $this->runtimeDir,
        ]);
    }

/**
     * Get the current data directory, if any is explicitly set.
     *
     * @return string|null
     */
    public function getDataDir()
    {
        return $this->dataDir;
    }

/**
     * Set the shell's temporary directory location.
     *
     * @param string $dir
     */
    public function setRuntimeDir(string $dir)
    {
        $this->runtimeDir = (string) $dir;

$this->configPaths->overrideDirs([
            'configDir'  => $this->configDir,
            'dataDir'    => $this->dataDir,
            'runtimeDir' => $this->runtimeDir,
        ]);
    }

/**
     * Get the shell's temporary directory location.
     *
     * Defaults to  `/psysh` inside the system's temp dir unless explicitly
     * overridden.
     *
     * @throws RuntimeException if no temporary directory is set and it is not possible to create one
     */
    public function getRuntimeDir(): string
    {
        $runtimeDir = $this->configPaths->runtimeDir();

if (!\is_dir($runtimeDir)) {
            if (!@\mkdir($runtimeDir, 0700, true)) {
                throw new RuntimeException(\sprintf('Unable to create PsySH runtime directory. Make sure PHP is able to write to %s in order to continue.', \dirname($runtimeDir)));
            }
        }

return $runtimeDir;
    }

/**
     * Set the readline history file path.
     *
     * @param string $file
     */
    public function setHistoryFile(string $file)
    {
        $this->historyFile = ConfigPaths::touchFileWithMkdir($file);
    }

/**
     * Get the readline history file path.
     *
     * Defaults to `/history` inside the shell's base config dir unless
     * explicitly overridden.
     */
    public function getHistoryFile(): string
    {
        if (isset($this->historyFile)) {
            return $this->historyFile;
        }

$files = $this->configPaths->configFiles(['psysh_history', 'history']);

if (!empty($files)) {
            if ($this->warnOnMultipleConfigs && \count($files) > 1) {
                $msg = \sprintf('Multiple history files found: %s. Using %s', \implode(', ', $files), $files[0]);
                \trigger_error($msg, \E_USER_NOTICE);
            }

$this->setHistoryFile($files[0]);
        } else {
            // fallback: create our own history file
            $this->setHistoryFile($this->configPaths->currentConfigDir().'/psysh_history');
        }

return $this->historyFile;
    }

/**
     * Set the readline max history size.
     *
     * @param int $value
     */
    public function setHistorySize(int $value)
    {
        $this->historySize = (int) $value;
    }

/**
     * Get the readline max history size.
     *
     * @return int
     */
    public function getHistorySize()
    {
        return $this->historySize;
    }

/**
     * Sets whether readline erases old duplicate history entries.
     *
     * @param bool $value
     */
    public function setEraseDuplicates(bool $value)
    {
        $this->eraseDuplicates = (bool) $value;
    }

/**
     * Get whether readline erases old duplicate history entries.
     *
     * @return bool|null
     */
    public function getEraseDuplicates()
    {
        return $this->eraseDuplicates;
    }

/**
     * Get a temporary file of type $type for process $pid.
     *
     * The file will be created inside the current temporary directory.
     *
     * @see self::getRuntimeDir
     *
     * @param string $type
     * @param int    $pid
     *
     * @return string Temporary file name
     */
    public function getTempFile(string $type, int $pid): string
    {
        return \tempnam($this->getRuntimeDir(), $type.'_'.$pid.'_');
    }

/**
     * Get a filename suitable for a FIFO pipe of $type for process $pid.
     *
     * The pipe will be created inside the current temporary directory.
     *
     * @param string $type
     * @param int    $pid
     *
     * @return string Pipe name
     */
    public function getPipe(string $type, int $pid): string
    {
        return \sprintf('%s/%s_%s', $this->getRuntimeDir(), $type, $pid);
    }

/**
     * Check whether this PHP instance has Readline available.
     *
     * @return bool True if Readline is available
     */
    public function hasReadline(): bool
    {
        return $this->hasReadline;
    }

/**
     * Enable or disable Readline usage.
     *
     * @param bool $useReadline
     */
    public function setUseReadline(bool $useReadline)
    {
        $this->useReadline = (bool) $useReadline;
    }

/**
     * Check whether to use Readline.
     *
     * If `setUseReadline` as been set to true, but Readline is not actually
     * available, this will return false.
     *
     * @return bool True if the current Shell should use Readline
     */
    public function useReadline(): bool
    {
        return isset($this->useReadline) ? ($this->hasReadline && $this->useReadline) : $this->hasReadline;
    }

/**
     * Set the Psy Shell readline service.
     *
     * @param Readline\Readline $readline
     */
    public function setReadline(Readline\Readline $readline)
    {
        $this->readline = $readline;
    }

/**
     * Get the Psy Shell readline service.
     *
     * By default, this service uses (in order of preference):
     *
     *  * GNU Readline
     *  * Libedit
     *  * A transient array-based readline emulation.
     *
     * @return Readline\Readline
     */
    public function getReadline(): Readline\Readline
    {
        if (!isset($this->readline)) {
            $className = $this->getReadlineClass();
            $this->readline = new $className(
                $this->getHistoryFile(),
                $this->getHistorySize(),
                $this->getEraseDuplicates()
            );
        }

return $this->readline;
    }

/**
     * Get the appropriate Readline implementation class name.
     *
     * @see self::getReadline
     */
    private function getReadlineClass(): string
    {
        if ($this->useReadline()) {
            if (Readline\GNUReadline::isSupported()) {
                return Readline\GNUReadline::class;
            } elseif (Readline\Libedit::isSupported()) {
                return Readline\Libedit::class;
            }
        }

if (Readline\Userland::isSupported()) {
            return Readline\Userland::class;
        }

return Readline\Transient::class;
    }

/**
     * Enable or disable bracketed paste.
     *
     * Note that this only works with readline (not libedit) integration for now.
     *
     * @param bool $useBracketedPaste
     */
    public function setUseBracketedPaste(bool $useBracketedPaste)
    {
        $this->useBracketedPaste = (bool) $useBracketedPaste;
    }

/**
     * Check whether to use bracketed paste with readline.
     *
     * When this works, it's magical. Tabs in pastes don't try to autcomplete.
     * Newlines in paste don't execute code until you get to the end. It makes
     * readline act like you'd expect when pasting.
     *
     * But it often (usually?) does not work. And when it doesn't, it just spews
     * escape codes all over the place and generally makes things ugly :(
     *
     * If `useBracketedPaste` has been set to true, but the current readline
     * implementation is anything besides GNU readline, this will return false.
     *
     * @return bool True if the shell should use bracketed paste
     */
    public function useBracketedPaste(): bool
    {
        $readlineClass = $this->getReadlineClass();

return $this->useBracketedPaste && $readlineClass::supportsBracketedPaste();

// @todo mebbe turn this on by default some day?
        // return $readlineClass::supportsBracketedPaste() && $this->useBracketedPaste !== false;
    }

/**
     * Check whether this PHP instance has Pcntl available.
     *
     * @return bool True if Pcntl is available
     */
    public function hasPcntl(): bool
    {
        return $this->hasPcntl;
    }

/**
     * Enable or disable Pcntl usage.
     *
     * @param bool $usePcntl
     */
    public function setUsePcntl(bool $usePcntl)
    {
        $this->usePcntl = (bool) $usePcntl;
    }

/**
     * Check whether to use Pcntl.
     *
     * If `setUsePcntl` has been set to true, but Pcntl is not actually
     * available, this will return false.
     *
     * @return bool True if the current Shell should use Pcntl
     */
    public function usePcntl(): bool
    {
        if (!isset($this->usePcntl)) {
            // Unless pcntl is explicitly *enabled*, don't use it while XDebug is debugging.
            // See https://github.com/bobthecow/psysh/issues/742
            if (\function_exists('xdebug_is_debugger_active') && \xdebug_is_debugger_active()) {
                return false;
            }

return $this->hasPcntl;
        }

return $this->hasPcntl && $this->usePcntl;
    }

/**
     * Check whether to use raw output.
     *
     * This is set by the --raw-output (-r) flag, and really only makes sense
     * when non-interactive, e.g. executing stdin.
     *
     * @return bool true if raw output is enabled
     */
    public function rawOutput(): bool
    {
        return $this->rawOutput;
    }

/**
     * Enable or disable raw output.
     *
     * @param bool $rawOutput
     */
    public function setRawOutput(bool $rawOutput)
    {
        $this->rawOutput = (bool) $rawOutput;
    }

/**
     * Enable or disable strict requirement of semicolons.
     *
     * @see self::requireSemicolons()
     *
     * @param bool $requireSemicolons
     */
    public function setRequireSemicolons(bool $requireSemicolons)
    {
        $this->requireSemicolons = (bool) $requireSemicolons;
    }

/**
     * Check whether to require semicolons on all statements.
     *
     * By default, PsySH will automatically insert semicolons at the end of
     * statements if they're missing. To strictly require semicolons, set
     * `requireSemicolons` to true.
     */
    public function requireSemicolons(): bool
    {
        return $this->requireSemicolons;
    }

/**
     * Enable or disable strict types enforcement.
     */
    public function setStrictTypes($strictTypes)
    {
        $this->strictTypes = (bool) $strictTypes;
    }

/**
     * Check whether to enforce strict types.
     */
    public function strictTypes(): bool
    {
        return $this->strictTypes;
    }

/**
     * Enable or disable Unicode in PsySH specific output.
     *
     * Note that this does not disable Unicode output in general, it just makes
     * it so PsySH won't output any itself.
     *
     * @param bool $useUnicode
     */
    public function setUseUnicode(bool $useUnicode)
    {
        $this->useUnicode = (bool) $useUnicode;
    }

/**
     * Check whether to use Unicode in PsySH specific output.
     *
     * Note that this does not disable Unicode output in general, it just makes
     * it so PsySH won't output any itself.
     */
    public function useUnicode(): bool
    {
        if (isset($this->useUnicode)) {
            return $this->useUnicode;
        }

// @todo detect `chsh` != 65001 on Windows and return false
        return true;
    }

/**
     * Set the error logging level.
     *
     * @see self::errorLoggingLevel
     *
     * @param int $errorLoggingLevel
     */
    public function setErrorLoggingLevel($errorLoggingLevel)
    {
        $this->errorLoggingLevel = (\E_ALL | \E_STRICT) & $errorLoggingLevel;
    }

/**
     * Get the current error logging level.
     *
     * By default, PsySH will automatically log all errors, regardless of the
     * current `error_reporting` level.
     *
     * Set `errorLoggingLevel` to 0 to prevent logging non-thrown errors. Set it
     * to any valid error_reporting value to log only errors which match that
     * level.
     *
     *     http://php.net/manual/en/function.error-reporting.php
     */
    public function errorLoggingLevel(): int
    {
        return $this->errorLoggingLevel;
    }

/**
     * Set a CodeCleaner service instance.
     *
     * @param CodeCleaner $cleaner
     */
    public function setCodeCleaner(CodeCleaner $cleaner)
    {
        $this->cleaner = $cleaner;
    }

/**
     * Get a CodeCleaner service instance.
     *
     * If none has been explicitly defined, this will create a new instance.
     */
    public function getCodeCleaner(): CodeCleaner
    {
        if (!isset($this->cleaner)) {
            $this->cleaner = new CodeCleaner(null, null, null, $this->yolo(), $this->strictTypes());
        }

return $this->cleaner;
    }

/**
     * Enable or disable running PsySH without input validation.
     *
     * You don't want this.
     */
    public function setYolo($yolo)
    {
        $this->yolo = (bool) $yolo;
    }

/**
     * Check whether to disable input validation.
     */
    public function yolo(): bool
    {
        return $this->yolo;
    }

/**
     * Enable or disable tab completion.
     *
     * @param bool $useTabCompletion
     */
    public function setUseTabCompletion(bool $useTabCompletion)
    {
        $this->useTabCompletion = (bool) $useTabCompletion;
    }

/**
     * @deprecated Call `setUseTabCompletion` instead
     *
     * @param bool $useTabCompletion
     */
    public function setTabCompletion(bool $useTabCompletion)
    {
        $this->setUseTabCompletion($useTabCompletion);
    }

/**
     * Check whether to use tab completion.
     *
     * If `setUseTabCompletion` has been set to true, but readline is not
     * actually available, this will return false.
     *
     * @return bool True if the current Shell should use tab completion
     */
    public function useTabCompletion(): bool
    {
        return isset($this->useTabCompletion) ? ($this->hasReadline && $this->useTabCompletion) : $this->hasReadline;
    }

/**
     * @deprecated Call `useTabCompletion` instead
     */
    public function getTabCompletion(): bool
    {
        return $this->useTabCompletion();
    }

/**
     * Set the Shell Output service.
     *
     * @param ShellOutput $output
     */
    public function setOutput(ShellOutput $output)
    {
        $this->output = $output;
        $this->pipedOutput = null; // Reset cached pipe info

if (isset($this->theme)) {
            $output->setTheme($this->theme);
        }

$this->applyFormatterStyles();
    }

/**
     * Get a Shell Output service instance.
     *
     * If none has been explicitly provided, this will create a new instance
     * with the configured verbosity and output pager supplied by self::getPager
     *
     * @see self::verbosity
     * @see self::getPager
     */
    public function getOutput(): ShellOutput
    {
        if (!isset($this->output)) {
            $this->setOutput(new ShellOutput(
                $this->getOutputVerbosity(),
                null,
                null,
                $this->getPager() ?: null,
                $this->theme()
            ));

// This is racy because `getOutputDecorated` needs access to the
            // output stream to figure out if it's piped or not, so create it
            // first, then update after we have a stream.
            $decorated = $this->getOutputDecorated();
            if ($decorated !== null) {
                $this->output->setDecorated($decorated);
            }
        }

return $this->output;
    }

/**
     * Get the decoration (i.e. color) setting for the Shell Output service.
     *
     * @return bool|null 3-state boolean corresponding to the current color mode
     */
    public function getOutputDecorated()
    {
        switch ($this->colorMode()) {
            case self::COLOR_MODE_FORCED:
                return true;
            case self::COLOR_MODE_DISABLED:
                return false;
            case self::COLOR_MODE_AUTO:
            default:
                return $this->outputIsPiped() ? false : null;
        }
    }

/**
     * Get the interactive setting for shell input.
     */
    public function getInputInteractive(): bool
    {
        switch ($this->interactiveMode()) {
            case self::INTERACTIVE_MODE_FORCED:
                return true;
            case self::INTERACTIVE_MODE_DISABLED:
                return false;
            case self::INTERACTIVE_MODE_AUTO:
            default:
                return !$this->inputIsPiped();
        }
    }

/**
     * Set the OutputPager service.
     *
     * If a string is supplied, a ProcOutputPager will be used which shells out
     * to the specified command.
     *
     * `cat` is special-cased to use the PassthruPager directly.
     *
     * @throws \InvalidArgumentException if $pager is not a string or OutputPager instance
     *
     * @param string|OutputPager|false $pager
     */
    public function setPager($pager)
    {
        if ($pager === null || $pager === false || $pager === 'cat') {
            $pager = false;
        }

if ($pager !== false && !\is_string($pager) && !$pager instanceof OutputPager) {
            throw new \InvalidArgumentException('Unexpected pager instance');
        }

$this->pager = $pager;
    }

/**
     * Get an OutputPager instance or a command for an external Proc pager.
     *
     * If no Pager has been explicitly provided, and Pcntl is available, this
     * will default to `cli.pager` ini value, falling back to `which less`.
     *
     * @return string|OutputPager|false
     */
    public function getPager()
    {
        if (!isset($this->pager) && $this->usePcntl()) {
            if (\getenv('TERM') === 'dumb') {
                return false;
            }

if ($pager = \ini_get('cli.pager')) {
                // use the default pager
                $this->pager = $pager;
            } elseif ($less = $this->configPaths->which('less')) {
                // check for the presence of less...
                $this->pager = $less.' -R -F -X';
            }
        }

return $this->pager;
    }

/**
     * Set the Shell AutoCompleter service.
     *
     * @param AutoCompleter $autoCompleter
     */
    public function setAutoCompleter(AutoCompleter $autoCompleter)
    {
        $this->autoCompleter = $autoCompleter;
    }

/**
     * Get an AutoCompleter service instance.
     */
    public function getAutoCompleter(): AutoCompleter
    {
        if (!isset($this->autoCompleter)) {
            $this->autoCompleter = new AutoCompleter();
        }

return $this->autoCompleter;
    }

/**
     * @deprecated Nothing should be using this anymore
     */
    public function getTabCompletionMatchers(): array
    {
        return [];
    }

/**
     * Add tab completion matchers to the AutoCompleter.
     *
     * This will buffer new matchers in the event that the Shell has not yet
     * been instantiated. This allows the user to specify matchers in their
     * config rc file, despite the fact that their file is needed in the Shell
     * constructor.
     *
     * @param array $matchers
     */
    public function addMatchers(array $matchers)
    {
        $this->newMatchers = \array_merge($this->newMatchers, $matchers);
        if (isset($this->shell)) {
            $this->doAddMatchers();
        }
    }

/**
     * Internal method for adding tab completion matchers. This will set any new
     * matchers once a Shell is available.
     */
    private function doAddMatchers()
    {
        if (!empty($this->newMatchers)) {
            $this->shell->addMatchers($this->newMatchers);
            $this->newMatchers = [];
        }
    }

/**
     * @deprecated Use `addMatchers` instead
     *
     * @param array $matchers
     */
    public function addTabCompletionMatchers(array $matchers)
    {
        $this->addMatchers($matchers);
    }

/**
     * Add commands to the Shell.
     *
     * This will buffer new commands in the event that the Shell has not yet
     * been instantiated. This allows the user to specify commands in their
     * config rc file, despite the fact that their file is needed in the Shell
     * constructor.
     *
     * @param array $commands
     */
    public function addCommands(array $commands)
    {
        $this->newCommands = \array_merge($this->newCommands, $commands);
        if (isset($this->shell)) {
            $this->doAddCommands();
        }
    }

/**
     * Internal method for adding commands. This will set any new commands once
     * a Shell is available.
     */
    private function doAddCommands()
    {
        if (!empty($this->newCommands)) {
            $this->shell->addCommands($this->newCommands);
            $this->newCommands = [];
        }
    }

/**
     * Set the Shell backreference and add any new commands to the Shell.
     *
     * @param Shell $shell
     */
    public function setShell(Shell $shell)
    {
        $this->shell = $shell;
        $this->doAddCommands();
        $this->doAddMatchers();
    }

/**
     * Set the PHP manual database file.
     *
     * This file should be an SQLite database generated from the phpdoc source
     * with the `bin/build_manual` script.
     *
     * @param string $filename
     */
    public function setManualDbFile(string $filename)
    {
        $this->manualDbFile = (string) $filename;
    }

/**
     * Get the current PHP manual database file.
     *
     * @return string|null Default: '~/.local/share/psysh/php_manual.sqlite'
     */
    public function getManualDbFile()
    {
        if (isset($this->manualDbFile)) {
            return $this->manualDbFile;
        }

$files = $this->configPaths->dataFiles(['php_manual.sqlite']);
        if (!empty($files)) {
            if ($this->warnOnMultipleConfigs && \count($files) > 1) {
                $msg = \sprintf('Multiple manual database files found: %s. Using %s', \implode(', ', $files), $files[0]);
                \trigger_error($msg, \E_USER_NOTICE);
            }

return $this->manualDbFile = $files[0];
        }
    }

/**
     * Get a PHP manual database connection.
     *
     * @return \PDO|null
     */
    public function getManualDb()
    {
        if (!isset($this->manualDb)) {
            $dbFile = $this->getManualDbFile();
            if ($dbFile !== null && \is_file($dbFile)) {
                try {
                    $this->manualDb = new \PDO('sqlite:'.$dbFile);
                } catch (\PDOException $e) {
                    if ($e->getMessage() === 'could not find driver') {
                        throw new RuntimeException('SQLite PDO driver not found', 0, $e);
                    } else {
                        throw $e;
                    }
                }
            }
        }

return $this->manualDb;
    }

/**
     * Add an array of casters definitions.
     *
     * @param array $casters
     */
    public function addCasters(array $casters)
    {
        $this->getPresenter()->addCasters($casters);
    }

/**
     * Get the Presenter service.
     */
    public function getPresenter(): Presenter
    {
        if (!isset($this->presenter)) {
            $this->presenter = new Presenter($this->getOutput()->getFormatter(), $this->forceArrayIndexes());
        }

return $this->presenter;
    }

/**
     * Enable or disable warnings on multiple configuration or data files.
     *
     * @see self::warnOnMultipleConfigs()
     *
     * @param bool $warnOnMultipleConfigs
     */
    public function setWarnOnMultipleConfigs(bool $warnOnMultipleConfigs)
    {
        $this->warnOnMultipleConfigs = (bool) $warnOnMultipleConfigs;
    }

/**
     * Check whether to warn on multiple configuration or data files.
     *
     * By default, PsySH will use the file with highest precedence, and will
     * silently ignore all others. With this enabled, a warning will be emitted
     * (but not an exception thrown) if multiple configuration or data files
     * are found.
     *
     * This will default to true in a future release, but is false for now.
     */
    public function warnOnMultipleConfigs(): bool
    {
        return $this->warnOnMultipleConfigs;
    }

/**
     * Set the current color mode.
     *
     * @throws \InvalidArgumentException if the color mode isn't auto, forced or disabled
     *
     * @param string $colorMode
     */
    public function setColorMode(string $colorMode)
    {
        $validColorModes = [
            self::COLOR_MODE_AUTO,
            self::COLOR_MODE_FORCED,
            self::COLOR_MODE_DISABLED,
        ];

if (!\in_array($colorMode, $validColorModes)) {
            throw new \InvalidArgumentException('Invalid color mode: '.$colorMode);
        }

$this->colorMode = $colorMode;
    }

/**
     * Get the current color mode.
     */
    public function colorMode(): string
    {
        return $this->colorMode;
    }

/**
     * Set the shell's interactive mode.
     *
     * @throws \InvalidArgumentException if interactive mode isn't disabled, forced, or auto
     *
     * @param string $interactiveMode
     */
    public function setInteractiveMode(string $interactiveMode)
    {
        $validInteractiveModes = [
            self::INTERACTIVE_MODE_AUTO,
            self::INTERACTIVE_MODE_FORCED,
            self::INTERACTIVE_MODE_DISABLED,
        ];

if (!\in_array($interactiveMode, $validInteractiveModes)) {
            throw new \InvalidArgumentException('Invalid interactive mode: '.$interactiveMode);
        }

$this->interactiveMode = $interactiveMode;
    }

/**
     * Get the current interactive mode.
     */
    public function interactiveMode(): string
    {
        return $this->interactiveMode;
    }

/**
     * Set an update checker service instance.
     *
     * @param Checker $checker
     */
    public function setChecker(Checker $checker)
    {
        $this->checker = $checker;
    }

/**
     * Get an update checker service instance.
     *
     * If none has been explicitly defined, this will create a new instance.
     */
    public function getChecker(): Checker
    {
        if (!isset($this->checker)) {
            $interval = $this->getUpdateCheck();
            switch ($interval) {
                case Checker::ALWAYS:
                    $this->checker = new GitHubChecker();
                    break;

case Checker::DAILY:
                case Checker::WEEKLY:
                case Checker::MONTHLY:
                    $checkFile = $this->getUpdateCheckCacheFile();
                    if ($checkFile === false) {
                        $this->checker = new NoopChecker();
                    } else {
                        $this->checker = new IntervalChecker($checkFile, $interval);
                    }
                    break;

case Checker::NEVER:
                    $this->checker = new NoopChecker();
                    break;
            }
        }

return $this->checker;
    }

/**
     * Get the current update check interval.
     *
     * One of 'always', 'daily', 'weekly', 'monthly' or 'never'. If none is
     * explicitly set, default to 'weekly'.
     */
    public function getUpdateCheck(): string
    {
        return isset($this->updateCheck) ? $this->updateCheck : Checker::WEEKLY;
    }

/**
     * Set the update check interval.
     *
     * @throws \InvalidArgumentException if the update check interval is unknown
     *
     * @param string $interval
     */
    public function setUpdateCheck(string $interval)
    {
        $validIntervals = [
            Checker::ALWAYS,
            Checker::DAILY,
            Checker::WEEKLY,
            Checker::MONTHLY,
            Checker::NEVER,
        ];

if (!\in_array($interval, $validIntervals)) {
            throw new \InvalidArgumentException('Invalid update check interval: '.$interval);
        }

$this->updateCheck = $interval;
    }

/**
     * Get a cache file path for the update checker.
     *
     * @return string|false Return false if config file/directory is not writable
     */
    public function getUpdateCheckCacheFile()
    {
        return ConfigPaths::touchFileWithMkdir($this->configPaths->currentConfigDir().'/update_check.json');
    }

/**
     * Set the startup message.
     *
     * @param string $message
     */
    public function setStartupMessage(string $message)
    {
        $this->startupMessage = $message;
    }

/**
     * Get the startup message.
     *
     * @return string|null
     */
    public function getStartupMessage()
    {
        return $this->startupMessage;
    }

/**
     * Set the prompt.
     *
     * @deprecated The `prompt` configuration has been replaced by Themes and support will
     * eventually be removed. In the meantime, prompt is applied first by the Theme, then overridden
     * by any explicitly defined prompt.
     *
     * Note that providing a prompt but not a theme config will implicitly use the `classic` theme.
     */
    public function setPrompt(string $prompt)
    {
        $this->prompt = $prompt;

if (isset($this->theme)) {
            $this->theme->setPrompt($prompt);
        }
    }

/**
     * Get the prompt.
     *
     * @return string|null
     */
    public function getPrompt()
    {
        return $this->prompt;
    }

/**
     * Get the force array indexes.
     */
    public function forceArrayIndexes(): bool
    {
        return $this->forceArrayIndexes;
    }

/**
     * Set the force array indexes.
     *
     * @param bool $forceArrayIndexes
     */
    public function setForceArrayIndexes(bool $forceArrayIndexes)
    {
        $this->forceArrayIndexes = $forceArrayIndexes;
    }

/**
     * Set the current output Theme.
     *
     * @param Theme|string|array $theme Theme (or Theme config)
     */
    public function setTheme($theme)
    {
        if (!$theme instanceof Theme) {
            $theme = new Theme($theme);
        }

$this->theme = $theme;

if (isset($this->prompt)) {
            $this->theme->setPrompt($this->prompt);
        }

if (isset($this->output)) {
            $this->output->setTheme($theme);
            $this->applyFormatterStyles();
        }
    }

/**
     * Get the current output Theme.
     */
    public function theme(): Theme
    {
        if (!isset($this->theme)) {
            // If a prompt is explicitly set, and a theme is not, base it on the `classic` theme.
            $this->theme = $this->prompt ? new Theme('classic') : new Theme();
        }

if (isset($this->prompt)) {
            $this->theme->setPrompt($this->prompt);
        }

return $this->theme;
    }

/**
     * Set the shell output formatter styles.
     *
     * Accepts a map from style name to [fg, bg, options], for example:
     *
     *     [
     *         'error' => ['white', 'red', ['bold']],
     *         'warning' => ['black', 'yellow'],
     *     ]
     *
     * Foreground, background or options can be null, or even omitted entirely.
     *
     * @deprecated The `formatterStyles` configuration has been replaced by Themes and support will
     * eventually be removed. In the meantime, styles are applied first by the Theme, then
     * overridden by any explicitly defined formatter styles.
     */
    public function setFormatterStyles(array $formatterStyles)
    {
        foreach ($formatterStyles as $name => $style) {
            $this->formatterStyles[$name] = new OutputFormatterStyle(...$style);
        }

if (isset($this->output)) {
            $this->applyFormatterStyles();
        }
    }

/**
     * Internal method for applying output formatter style customization.
     *
     * This is called on initialization of the shell output, and again if the
     * formatter styles config is updated.
     *
     * @deprecated The `formatterStyles` configuration has been replaced by Themes and support will
     * eventually be removed. In the meantime, styles are applied first by the Theme, then
     * overridden by any explicitly defined formatter styles.
     */
    private function applyFormatterStyles()
    {
        $formatter = $this->output->getFormatter();
        foreach ($this->formatterStyles as $name => $style) {
            $formatter->setStyle($name, $style);
        }

$errorFormatter = $this->output->getErrorOutput()->getFormatter();
        foreach (Theme::ERROR_STYLES as $name) {
            if (isset($this->formatterStyles[$name])) {
                $errorFormatter->setStyle($name, $this->formatterStyles[$name]);
            }
        }
    }

/**
     * Get the configured output verbosity.
     */
    public function verbosity(): string
    {
        return $this->verbosity;
    }

/**
     * Set the shell output verbosity.
     *
     * Accepts OutputInterface verbosity constants.
     *
     * @throws \InvalidArgumentException if verbosity level is invalid
     *
     * @param string $verbosity
     */
    public function setVerbosity(string $verbosity)
    {
        $validVerbosityLevels = [
            self::VERBOSITY_QUIET,
            self::VERBOSITY_NORMAL,
            self::VERBOSITY_VERBOSE,
            self::VERBOSITY_VERY_VERBOSE,
            self::VERBOSITY_DEBUG,
        ];

if (!\in_array($verbosity, $validVerbosityLevels)) {
            throw new \InvalidArgumentException('Invalid verbosity level: '.$verbosity);
        }

$this->verbosity = $verbosity;

if (isset($this->output)) {
            $this->output->setVerbosity($this->getOutputVerbosity());
        }
    }

/**
     * Map the verbosity configuration to OutputInterface verbosity constants.
     *
     * @return int OutputInterface verbosity level
     */
    public function getOutputVerbosity(): int
    {
        switch ($this->verbosity()) {
            case self::VERBOSITY_QUIET:
                return OutputInterface::VERBOSITY_QUIET;
            case self::VERBOSITY_VERBOSE:
                return OutputInterface::VERBOSITY_VERBOSE;
            case self::VERBOSITY_VERY_VERBOSE:
                return OutputInterface::VERBOSITY_VERY_VERBOSE;
            case self::VERBOSITY_DEBUG:
                return OutputInterface::VERBOSITY_DEBUG;
            case self::VERBOSITY_NORMAL:
            default:
                return OutputInterface::VERBOSITY_NORMAL;
        }
    }

/**
     * Guess whether stdin is piped.
     *
     * This is mostly useful for deciding whether to use non-interactive mode.
     */
    public function inputIsPiped(): bool
    {
        if ($this->pipedInput === null) {
            $this->pipedInput = \defined('STDIN') && self::looksLikeAPipe(\STDIN);
        }

return $this->pipedInput;
    }

/**
     * Guess whether shell output is piped.
     *
     * This is mostly useful for deciding whether to use non-decorated output.
     */
    public function outputIsPiped(): bool
    {
        if ($this->pipedOutput === null) {
            $this->pipedOutput = self::looksLikeAPipe($this->getOutput()->getStream());
        }

return $this->pipedOutput;
    }

/**
     * Guess whether an input or output stream is piped.
     *
     * @param resource|int $stream
     */
    private static function looksLikeAPipe($stream): bool
    {
        if (\function_exists('posix_isatty')) {
            return !\posix_isatty($stream);
        }

$stat = \fstat($stream);
        $mode = $stat['mode'] & 0170000;

return $mode === 0010000 || $mode === 0040000 || $mode === 0100000 || $mode === 0120000;
    }
}

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