361 lines
9.5 KiB
PHP
361 lines
9.5 KiB
PHP
<?php
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/**
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* ShellDispatcher file
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*
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* PHP 5
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*
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* CakePHP(tm) : Rapid Development Framework (http://cakephp.org)
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* Copyright (c) Cake Software Foundation, Inc. (http://cakefoundation.org)
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*
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* Licensed under The MIT License
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* For full copyright and license information, please see the LICENSE.txt
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* Redistributions of files must retain the above copyright notice.
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*
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* @copyright Copyright (c) Cake Software Foundation, Inc. (http://cakefoundation.org)
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* @link http://cakephp.org CakePHP(tm) Project
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* @since CakePHP(tm) v 2.0
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* @license MIT License (http://www.opensource.org/licenses/mit-license.php)
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*/
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/**
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* Shell dispatcher handles dispatching cli commands.
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*
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* @package Cake.Console
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*/
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class ShellDispatcher {
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/**
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* Contains command switches parsed from the command line.
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*
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* @var array
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*/
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public $params = array();
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/**
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* Contains arguments parsed from the command line.
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*
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* @var array
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*/
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public $args = array();
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/**
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* Constructor
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*
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* The execution of the script is stopped after dispatching the request with
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* a status code of either 0 or 1 according to the result of the dispatch.
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*
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* @param array $args the argv from PHP
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* @param boolean $bootstrap Should the environment be bootstrapped.
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*/
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public function __construct($args = array(), $bootstrap = true) {
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set_time_limit(0);
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$this->parseParams($args);
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if ($bootstrap) {
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$this->_initConstants();
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$this->_initEnvironment();
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}
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}
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/**
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* Run the dispatcher
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*
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* @param array $argv The argv from PHP
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* @return void
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*/
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public static function run($argv) {
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$dispatcher = new ShellDispatcher($argv);
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$dispatcher->_stop($dispatcher->dispatch() === false ? 1 : 0);
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}
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/**
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* Defines core configuration.
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*
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* @return void
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*/
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protected function _initConstants() {
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if (function_exists('ini_set')) {
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ini_set('html_errors', false);
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ini_set('implicit_flush', true);
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ini_set('max_execution_time', 0);
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}
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if (!defined('CAKE_CORE_INCLUDE_PATH')) {
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define('DS', DIRECTORY_SEPARATOR);
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define('CAKE_CORE_INCLUDE_PATH', dirname(dirname(dirname(__FILE__))));
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define('CAKEPHP_SHELL', true);
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if (!defined('CORE_PATH')) {
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define('CORE_PATH', CAKE_CORE_INCLUDE_PATH . DS);
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}
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}
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}
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/**
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* Defines current working environment.
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*
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* @return void
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* @throws CakeException
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*/
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protected function _initEnvironment() {
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if (!$this->_bootstrap()) {
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$message = "Unable to load CakePHP core.\nMake sure " . DS . 'lib' . DS . 'Cake exists in ' . CAKE_CORE_INCLUDE_PATH;
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throw new CakeException($message);
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}
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if (!isset($this->args[0]) || !isset($this->params['working'])) {
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$message = "This file has been loaded incorrectly and cannot continue.\n" .
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"Please make sure that " . DS . 'lib' . DS . 'Cake' . DS . "Console is in your system path,\n" .
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"and check the cookbook for the correct usage of this command.\n" .
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"(http://book.cakephp.org/)";
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throw new CakeException($message);
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}
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$this->shiftArgs();
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}
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/**
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* Initializes the environment and loads the Cake core.
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*
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* @return boolean Success.
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*/
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protected function _bootstrap() {
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define('ROOT', $this->params['root']);
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define('APP_DIR', $this->params['app']);
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define('APP', $this->params['working'] . DS);
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define('WWW_ROOT', APP . $this->params['webroot'] . DS);
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if (!is_dir(ROOT . DS . APP_DIR . DS . 'tmp')) {
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define('TMP', CAKE_CORE_INCLUDE_PATH . DS . 'Cake' . DS . 'Console' . DS . 'Templates' . DS . 'skel' . DS . 'tmp' . DS);
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}
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$boot = file_exists(ROOT . DS . APP_DIR . DS . 'Config' . DS . 'bootstrap.php');
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require CORE_PATH . 'Cake' . DS . 'bootstrap.php';
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if (!file_exists(APP . 'Config' . DS . 'core.php')) {
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include_once CAKE_CORE_INCLUDE_PATH . DS . 'Cake' . DS . 'Console' . DS . 'Templates' . DS . 'skel' . DS . 'Config' . DS . 'core.php';
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App::build();
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}
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$this->setErrorHandlers();
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if (!defined('FULL_BASE_URL')) {
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define('FULL_BASE_URL', 'http://localhost');
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}
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return true;
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}
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/**
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* Set the error/exception handlers for the console
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* based on the `Error.consoleHandler`, and `Exception.consoleHandler` values
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* if they are set. If they are not set, the default ConsoleErrorHandler will be
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* used.
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*
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* @return void
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*/
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public function setErrorHandlers() {
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App::uses('ConsoleErrorHandler', 'Console');
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$error = Configure::read('Error');
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$exception = Configure::read('Exception');
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$errorHandler = new ConsoleErrorHandler();
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if (empty($error['consoleHandler'])) {
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$error['consoleHandler'] = array($errorHandler, 'handleError');
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Configure::write('Error', $error);
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}
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if (empty($exception['consoleHandler'])) {
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$exception['consoleHandler'] = array($errorHandler, 'handleException');
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Configure::write('Exception', $exception);
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}
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set_exception_handler($exception['consoleHandler']);
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set_error_handler($error['consoleHandler'], Configure::read('Error.level'));
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}
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/**
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* Dispatches a CLI request
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*
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* @return boolean
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* @throws MissingShellMethodException
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*/
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public function dispatch() {
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$shell = $this->shiftArgs();
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if (!$shell) {
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$this->help();
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return false;
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}
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if (in_array($shell, array('help', '--help', '-h'))) {
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$this->help();
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return true;
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}
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$Shell = $this->_getShell($shell);
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$command = null;
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if (isset($this->args[0])) {
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$command = $this->args[0];
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}
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if ($Shell instanceof Shell) {
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$Shell->initialize();
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$Shell->loadTasks();
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return $Shell->runCommand($command, $this->args);
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}
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$methods = array_diff(get_class_methods($Shell), get_class_methods('Shell'));
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$added = in_array($command, $methods);
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$private = $command[0] === '_' && method_exists($Shell, $command);
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if (!$private) {
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if ($added) {
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$this->shiftArgs();
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$Shell->startup();
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return $Shell->{$command}();
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}
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if (method_exists($Shell, 'main')) {
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$Shell->startup();
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return $Shell->main();
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}
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}
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throw new MissingShellMethodException(array('shell' => $shell, 'method' => $command));
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}
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/**
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* Get shell to use, either plugin shell or application shell
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*
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* All paths in the loaded shell paths are searched.
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*
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* @param string $shell Optionally the name of a plugin
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* @return mixed An object
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* @throws MissingShellException when errors are encountered.
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*/
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protected function _getShell($shell) {
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list($plugin, $shell) = pluginSplit($shell, true);
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$plugin = Inflector::camelize($plugin);
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$class = Inflector::camelize($shell) . 'Shell';
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App::uses('Shell', 'Console');
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App::uses('AppShell', 'Console/Command');
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App::uses($class, $plugin . 'Console/Command');
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if (!class_exists($class)) {
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throw new MissingShellException(array(
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'class' => $class
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));
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}
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$Shell = new $class();
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$Shell->plugin = trim($plugin, '.');
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return $Shell;
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}
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/**
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* Parses command line options and extracts the directory paths from $params
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*
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* @param array $args Parameters to parse
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* @return void
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*/
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public function parseParams($args) {
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$this->_parsePaths($args);
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$defaults = array(
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'app' => 'app',
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'root' => dirname(dirname(dirname(dirname(__FILE__)))),
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'working' => null,
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'webroot' => 'webroot'
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);
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$params = array_merge($defaults, array_intersect_key($this->params, $defaults));
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$isWin = false;
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foreach ($defaults as $default => $value) {
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if (strpos($params[$default], '\\') !== false) {
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$isWin = true;
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break;
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}
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}
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$params = str_replace('\\', '/', $params);
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if (isset($params['working'])) {
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$params['working'] = trim($params['working']);
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}
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if (!empty($params['working']) && (!isset($this->args[0]) || isset($this->args[0]) && $this->args[0][0] !== '.')) {
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if ($params['working'][0] === '.') {
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$params['working'] = realpath($params['working']);
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}
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if (empty($this->params['app']) && $params['working'] != $params['root']) {
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$params['root'] = dirname($params['working']);
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$params['app'] = basename($params['working']);
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} else {
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$params['root'] = $params['working'];
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}
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}
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if ($params['app'][0] === '/' || preg_match('/([a-z])(:)/i', $params['app'], $matches)) {
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$params['root'] = dirname($params['app']);
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} elseif (strpos($params['app'], '/')) {
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$params['root'] .= '/' . dirname($params['app']);
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}
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$params['app'] = basename($params['app']);
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$params['working'] = rtrim($params['root'], '/');
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if (!$isWin || !preg_match('/^[A-Z]:$/i', $params['app'])) {
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$params['working'] .= '/' . $params['app'];
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}
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if (!empty($matches[0]) || !empty($isWin)) {
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$params = str_replace('/', '\\', $params);
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}
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$this->params = array_merge($this->params, $params);
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}
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/**
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* Parses out the paths from from the argv
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*
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* @param array $args
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* @return void
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*/
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protected function _parsePaths($args) {
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$parsed = array();
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$keys = array('-working', '--working', '-app', '--app', '-root', '--root');
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foreach ($keys as $key) {
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while (($index = array_search($key, $args)) !== false) {
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$keyname = str_replace('-', '', $key);
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$valueIndex = $index + 1;
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$parsed[$keyname] = $args[$valueIndex];
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array_splice($args, $index, 2);
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}
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}
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$this->args = $args;
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$this->params = $parsed;
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}
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/**
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* Removes first argument and shifts other arguments up
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*
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* @return mixed Null if there are no arguments otherwise the shifted argument
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*/
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public function shiftArgs() {
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return array_shift($this->args);
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}
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/**
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* Shows console help. Performs an internal dispatch to the CommandList Shell
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*
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* @return void
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*/
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public function help() {
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$this->args = array_merge(array('command_list'), $this->args);
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$this->dispatch();
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}
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/**
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* Stop execution of the current script
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*
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* @param integer|string $status see http://php.net/exit for values
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* @return void
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*/
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protected function _stop($status = 0) {
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exit($status);
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}
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}
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