diff cake/console/libs/shell.php @ 0:261e66bd5a0c

hg init
author Shoshi TAMAKI <shoshi@cr.ie.u-ryukyu.ac.jp>
date Sun, 24 Jul 2011 21:08:31 +0900
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--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/cake/console/libs/shell.php	Sun Jul 24 21:08:31 2011 +0900
@@ -0,0 +1,647 @@
+<?php
+/**
+ * Base class for Shells
+ *
+ * PHP versions 4 and 5
+ *
+ * CakePHP(tm) : Rapid Development Framework (http://cakephp.org)
+ * Copyright 2005-2010, Cake Software Foundation, Inc. (http://cakefoundation.org)
+ *
+ * Licensed under The MIT License
+ * Redistributions of files must retain the above copyright notice.
+ *
+ * @copyright     Copyright 2005-2010, Cake Software Foundation, Inc. (http://cakefoundation.org)
+ * @link          http://cakephp.org CakePHP(tm) Project
+ * @package       cake
+ * @subpackage    cake.cake.console.libs
+ * @since         CakePHP(tm) v 1.2.0.5012
+ * @license       MIT License (http://www.opensource.org/licenses/mit-license.php)
+ */
+
+/**
+ * Base class for command-line utilities for automating programmer chores.
+ *
+ * @package       cake
+ * @subpackage    cake.cake.console.libs
+ */
+class Shell extends Object {
+
+/**
+ * An instance of the ShellDispatcher object that loaded this script
+ *
+ * @var ShellDispatcher
+ * @access public
+ */
+	var $Dispatch = null;
+
+/**
+ * If true, the script will ask for permission to perform actions.
+ *
+ * @var boolean
+ * @access public
+ */
+	var $interactive = true;
+
+/**
+ * Holds the DATABASE_CONFIG object for the app. Null if database.php could not be found,
+ * or the app does not exist.
+ *
+ * @var DATABASE_CONFIG
+ * @access public
+ */
+	var $DbConfig = null;
+
+/**
+ * Contains command switches parsed from the command line.
+ *
+ * @var array
+ * @access public
+ */
+	var $params = array();
+
+/**
+ * Contains arguments parsed from the command line.
+ *
+ * @var array
+ * @access public
+ */
+	var $args = array();
+
+/**
+ * The file name of the shell that was invoked.
+ *
+ * @var string
+ * @access public
+ */
+	var $shell = null;
+
+/**
+ * The class name of the shell that was invoked.
+ *
+ * @var string
+ * @access public
+ */
+	var $className = null;
+
+/**
+ * The command called if public methods are available.
+ *
+ * @var string
+ * @access public
+ */
+	var $command = null;
+
+/**
+ * The name of the shell in camelized.
+ *
+ * @var string
+ * @access public
+ */
+	var $name = null;
+
+/**
+ * An alias for the shell
+ *
+ * @var string
+ * @access public
+ */
+	var $alias = null;
+
+/**
+ * Contains tasks to load and instantiate
+ *
+ * @var array
+ * @access public
+ */
+	var $tasks = array();
+
+/**
+ * Contains the loaded tasks
+ *
+ * @var array
+ * @access public
+ */
+	var $taskNames = array();
+
+/**
+ * Contains models to load and instantiate
+ *
+ * @var array
+ * @access public
+ */
+	var $uses = array();
+
+/**
+ *  Constructs this Shell instance.
+ *
+ */
+	function __construct(&$dispatch) {
+		$vars = array('params', 'args', 'shell', 'shellCommand' => 'command');
+
+		foreach ($vars as $key => $var) {
+			if (is_string($key)) {
+				$this->{$var} =& $dispatch->{$key};
+			} else {
+				$this->{$var} =& $dispatch->{$var};
+			}
+		}
+
+		if ($this->name == null) {
+			$this->name = get_class($this);
+		}
+
+		if ($this->alias == null) {
+			$this->alias = $this->name;
+		}
+
+		ClassRegistry::addObject($this->name, $this);
+		ClassRegistry::map($this->name, $this->alias);
+
+		if (!PHP5 && isset($this->args[0])) {
+			if (strpos($this->name, strtolower(Inflector::camelize($this->args[0]))) !== false) {
+				$dispatch->shiftArgs();
+			}
+			if (strtolower($this->command) == strtolower(Inflector::variable($this->args[0])) && method_exists($this, $this->command)) {
+				$dispatch->shiftArgs();
+			}
+		}
+
+		$this->Dispatch =& $dispatch;
+	}
+
+/**
+ * Initializes the Shell
+ * acts as constructor for subclasses
+ * allows configuration of tasks prior to shell execution
+ *
+ * @access public
+ */
+	function initialize() {
+		$this->_loadModels();
+	}
+
+/**
+ * Starts up the Shell
+ * allows for checking and configuring prior to command or main execution
+ * can be overriden in subclasses
+ *
+ * @access public
+ */
+	function startup() {
+		$this->_welcome();
+	}
+
+/**
+ * Displays a header for the shell
+ *
+ * @access protected
+ */
+	function _welcome() {
+		$this->Dispatch->clear();
+		$this->out();
+		$this->out('Welcome to CakePHP v' . Configure::version() . ' Console');
+		$this->hr();
+		$this->out('App : '. $this->params['app']);
+		$this->out('Path: '. $this->params['working']);
+		$this->hr();
+	}
+
+/**
+ * Loads database file and constructs DATABASE_CONFIG class
+ * makes $this->DbConfig available to subclasses
+ *
+ * @return bool
+ * @access protected
+ */
+	function _loadDbConfig() {
+		if (config('database') && class_exists('DATABASE_CONFIG')) {
+			$this->DbConfig =& new DATABASE_CONFIG();
+			return true;
+		}
+		$this->err('Database config could not be loaded.');
+		$this->out('Run `bake` to create the database configuration.');
+		return false;
+	}
+
+/**
+ * if var $uses = true
+ * Loads AppModel file and constructs AppModel class
+ * makes $this->AppModel available to subclasses
+ * if var $uses is an array of models will load those models
+ *
+ * @return bool
+ * @access protected
+ */
+	function _loadModels() {
+		if ($this->uses === null || $this->uses === false) {
+			return;
+		}
+
+		if ($this->uses === true && App::import('Model', 'AppModel')) {
+			$this->AppModel =& new AppModel(false, false, false);
+			return true;
+		}
+
+		if ($this->uses !== true && !empty($this->uses)) {
+			$uses = is_array($this->uses) ? $this->uses : array($this->uses);
+
+			$modelClassName = $uses[0];
+			if (strpos($uses[0], '.') !== false) {
+				list($plugin, $modelClassName) = explode('.', $uses[0]);
+			}
+			$this->modelClass = $modelClassName;
+
+			foreach ($uses as $modelClass) {
+				list($plugin, $modelClass) = pluginSplit($modelClass, true);
+				if (PHP5) {
+					$this->{$modelClass} = ClassRegistry::init($plugin . $modelClass);
+				} else {
+					$this->{$modelClass} =& ClassRegistry::init($plugin . $modelClass);
+				}
+			}
+			return true;
+		}
+		return false;
+	}
+
+/**
+ * Loads tasks defined in var $tasks
+ *
+ * @return bool
+ * @access public
+ */
+	function loadTasks() {
+		if ($this->tasks === null || $this->tasks === false || $this->tasks === true || empty($this->tasks)) {
+			return true;
+		}
+
+		$tasks = $this->tasks;
+		if (!is_array($tasks)) {
+			$tasks = array($tasks);
+		}
+
+		foreach ($tasks as $taskName) {
+			$task = Inflector::underscore($taskName);
+			$taskClass = Inflector::camelize($taskName . 'Task');
+
+			if (!class_exists($taskClass)) {
+				foreach ($this->Dispatch->shellPaths as $path) {
+					$taskPath = $path . 'tasks' . DS . $task . '.php';
+					if (file_exists($taskPath)) {
+						require_once $taskPath;
+						break;
+					}
+				}
+			}
+			$taskClassCheck = $taskClass;
+			if (!PHP5) {
+				$taskClassCheck = strtolower($taskClass);
+			}
+			if (ClassRegistry::isKeySet($taskClassCheck)) {
+				$this->taskNames[] = $taskName;
+				if (!PHP5) {
+					$this->{$taskName} =& ClassRegistry::getObject($taskClassCheck);
+				} else {
+					$this->{$taskName} = ClassRegistry::getObject($taskClassCheck);
+				}
+			} else {
+				$this->taskNames[] = $taskName;
+				if (!PHP5) {
+					$this->{$taskName} =& new $taskClass($this->Dispatch);
+				} else {
+					$this->{$taskName} = new $taskClass($this->Dispatch);
+				}
+			}
+
+			if (!isset($this->{$taskName})) {
+				$this->err("Task `{$taskName}` could not be loaded");
+				$this->_stop();
+			}
+		}
+
+		return true;
+	}
+
+/**
+ * Prompts the user for input, and returns it.
+ *
+ * @param string $prompt Prompt text.
+ * @param mixed $options Array or string of options.
+ * @param string $default Default input value.
+ * @return Either the default value, or the user-provided input.
+ * @access public
+ */
+	function in($prompt, $options = null, $default = null) {
+		if (!$this->interactive) {
+			return $default;
+		}
+		$in = $this->Dispatch->getInput($prompt, $options, $default);
+
+		if ($options && is_string($options)) {
+			if (strpos($options, ',')) {
+				$options = explode(',', $options);
+			} elseif (strpos($options, '/')) {
+				$options = explode('/', $options);
+			} else {
+				$options = array($options);
+			}
+		}
+		if (is_array($options)) {
+			while ($in == '' || ($in && (!in_array(strtolower($in), $options) && !in_array(strtoupper($in), $options)) && !in_array($in, $options))) {
+				$in = $this->Dispatch->getInput($prompt, $options, $default);
+			}
+		}
+		if ($in) {
+			return $in;
+		}
+	}
+
+/**
+ * Outputs a single or multiple messages to stdout. If no parameters
+ * are passed outputs just a newline.
+ *
+ * @param mixed $message A string or a an array of strings to output
+ * @param integer $newlines Number of newlines to append
+ * @return integer Returns the number of bytes returned from writing to stdout.
+ * @access public
+ */
+	function out($message = null, $newlines = 1) {
+		if (is_array($message)) {
+			$message = implode($this->nl(), $message);
+		}
+		return $this->Dispatch->stdout($message . $this->nl($newlines), false);
+	}
+
+/**
+ * Outputs a single or multiple error messages to stderr. If no parameters
+ * are passed outputs just a newline.
+ *
+ * @param mixed $message A string or a an array of strings to output
+ * @param integer $newlines Number of newlines to append
+ * @access public
+ */
+	function err($message = null, $newlines = 1) {
+		if (is_array($message)) {
+			$message = implode($this->nl(), $message);
+		}
+		$this->Dispatch->stderr($message . $this->nl($newlines));
+	}
+
+/**
+ * Returns a single or multiple linefeeds sequences.
+ *
+ * @param integer $multiplier Number of times the linefeed sequence should be repeated
+ * @access public
+ * @return string
+ */
+	function nl($multiplier = 1) {
+		return str_repeat("\n", $multiplier);
+	}
+
+/**
+ * Outputs a series of minus characters to the standard output, acts as a visual separator.
+ *
+ * @param integer $newlines Number of newlines to pre- and append
+ * @access public
+ */
+	function hr($newlines = 0) {
+		$this->out(null, $newlines);
+		$this->out('---------------------------------------------------------------');
+		$this->out(null, $newlines);
+	}
+
+/**
+ * Displays a formatted error message
+ * and exits the application with status code 1
+ *
+ * @param string $title Title of the error
+ * @param string $message An optional error message
+ * @access public
+ */
+	function error($title, $message = null) {
+		$this->err(sprintf(__('Error: %s', true), $title));
+
+		if (!empty($message)) {
+			$this->err($message);
+		}
+		$this->_stop(1);
+	}
+
+/**
+ * Will check the number args matches otherwise throw an error
+ *
+ * @param integer $expectedNum Expected number of paramters
+ * @param string $command Command
+ * @access protected
+ */
+	function _checkArgs($expectedNum, $command = null) {
+		if (!$command) {
+			$command = $this->command;
+		}
+		if (count($this->args) < $expectedNum) {
+			$message[] = "Got: " . count($this->args);
+			$message[] = "Expected: {$expectedNum}";
+			$message[] = "Please type `cake {$this->shell} help` for help";
+			$message[] = "on usage of the {$this->name} {$command}.";
+			$this->error('Wrong number of parameters', $message);
+		}
+	}
+
+/**
+ * Creates a file at given path
+ *
+ * @param string $path Where to put the file.
+ * @param string $contents Content to put in the file.
+ * @return boolean Success
+ * @access public
+ */
+	function createFile($path, $contents) {
+		$path = str_replace(DS . DS, DS, $path);
+
+		$this->out();
+		$this->out(sprintf(__("Creating file %s", true), $path));
+
+		if (is_file($path) && $this->interactive === true) {
+			$prompt = sprintf(__('File `%s` exists, overwrite?', true), $path);
+			$key = $this->in($prompt,  array('y', 'n', 'q'), 'n');
+
+			if (strtolower($key) == 'q') {
+				$this->out(__('Quitting.', true), 2);
+				$this->_stop();
+			} elseif (strtolower($key) != 'y') {
+				$this->out(sprintf(__('Skip `%s`', true), $path), 2);
+				return false;
+			}
+		}
+		if (!class_exists('File')) {
+			require LIBS . 'file.php';
+		}
+
+		if ($File = new File($path, true)) {
+			$data = $File->prepare($contents);
+			$File->write($data);
+			$this->out(sprintf(__('Wrote `%s`', true), $path));
+			return true;
+		} else {
+			$this->err(sprintf(__('Could not write to `%s`.', true), $path), 2);
+			return false;
+		}
+	}
+
+/**
+ * Outputs usage text on the standard output. Implement it in subclasses.
+ *
+ * @access public
+ */
+	function help() {
+		if ($this->command != null) {
+			$this->err("Unknown {$this->name} command `{$this->command}`.");
+			$this->err("For usage, try `cake {$this->shell} help`.", 2);
+		} else {
+			$this->Dispatch->help();
+		}
+	}
+
+/**
+ * Action to create a Unit Test
+ *
+ * @return boolean Success
+ * @access protected
+ */
+	function _checkUnitTest() {
+		if (App::import('vendor', 'simpletest' . DS . 'simpletest')) {
+			return true;
+		}
+		$prompt = 'SimpleTest is not installed. Do you want to bake unit test files anyway?';
+		$unitTest = $this->in($prompt, array('y','n'), 'y');
+		$result = strtolower($unitTest) == 'y' || strtolower($unitTest) == 'yes';
+
+		if ($result) {
+			$this->out();
+			$this->out('You can download SimpleTest from http://simpletest.org');
+		}
+		return $result;
+	}
+
+/**
+ * Makes absolute file path easier to read
+ *
+ * @param string $file Absolute file path
+ * @return sting short path
+ * @access public
+ */
+	function shortPath($file) {
+		$shortPath = str_replace(ROOT, null, $file);
+		$shortPath = str_replace('..' . DS, '', $shortPath);
+		return str_replace(DS . DS, DS, $shortPath);
+	}
+
+/**
+ * Creates the proper controller path for the specified controller class name
+ *
+ * @param string $name Controller class name
+ * @return string Path to controller
+ * @access protected
+ */
+	function _controllerPath($name) {
+		return strtolower(Inflector::underscore($name));
+	}
+
+/**
+ * Creates the proper controller plural name for the specified controller class name
+ *
+ * @param string $name Controller class name
+ * @return string Controller plural name
+ * @access protected
+ */
+	function _controllerName($name) {
+		return Inflector::pluralize(Inflector::camelize($name));
+	}
+
+/**
+ * Creates the proper controller camelized name (singularized) for the specified name
+ *
+ * @param string $name Name
+ * @return string Camelized and singularized controller name
+ * @access protected
+ */
+	function _modelName($name) {
+		return Inflector::camelize(Inflector::singularize($name));
+	}
+
+/**
+ * Creates the proper underscored model key for associations
+ *
+ * @param string $name Model class name
+ * @return string Singular model key
+ * @access protected
+ */
+	function _modelKey($name) {
+		return Inflector::underscore($name) . '_id';
+	}
+
+/**
+ * Creates the proper model name from a foreign key
+ *
+ * @param string $key Foreign key
+ * @return string Model name
+ * @access protected
+ */
+	function _modelNameFromKey($key) {
+		return Inflector::camelize(str_replace('_id', '', $key));
+	}
+
+/**
+ * creates the singular name for use in views.
+ *
+ * @param string $name
+ * @return string $name
+ * @access protected
+ */
+	function _singularName($name) {
+		return Inflector::variable(Inflector::singularize($name));
+	}
+
+/**
+ * Creates the plural name for views
+ *
+ * @param string $name Name to use
+ * @return string Plural name for views
+ * @access protected
+ */
+	function _pluralName($name) {
+		return Inflector::variable(Inflector::pluralize($name));
+	}
+
+/**
+ * Creates the singular human name used in views
+ *
+ * @param string $name Controller name
+ * @return string Singular human name
+ * @access protected
+ */
+	function _singularHumanName($name) {
+		return Inflector::humanize(Inflector::underscore(Inflector::singularize($name)));
+	}
+
+/**
+ * Creates the plural human name used in views
+ *
+ * @param string $name Controller name
+ * @return string Plural human name
+ * @access protected
+ */
+	function _pluralHumanName($name) {
+		return Inflector::humanize(Inflector::underscore($name));
+	}
+
+/**
+ * Find the correct path for a plugin. Scans $pluginPaths for the plugin you want.
+ *
+ * @param string $pluginName Name of the plugin you want ie. DebugKit
+ * @return string $path path to the correct plugin.
+ */
+	function _pluginPath($pluginName) {
+		return App::pluginPath($pluginName);
+	}
+}