[2.0] Incorporated CLI refactorings. Added support to namespaces and unlimited...

[2.0] Incorporated CLI refactorings. Added support to namespaces and unlimited depth namespaces. Dropped globalArguments for now, since they interfer in DAG implementation.

UPGRADE_TO_2_0

@@ -6,8 +6,12 @@
 
 ## CLI Controller changes
 
-CLI main object changed its name and namespace. Renamed from Doctrine\ORM\Tools\Cli to Doctrine\ORM\Tools\Cli\CliController.
-Doctrine\ORM\Tools\Cli\CliController methods addTasks and addTask are now fluent.
+CLI main object changed its name and namespace. Renamed from Doctrine\ORM\Tools\Cli to Doctrine\Common\Cli\CliController.
+Doctrine\Common\Cli\CliController now only deals with namespaces. Ready to go, Core, Dbal and Orm are available and you can subscribe new tasks by retrieving the namespace and including new task. Example:
+
+    [php]
+    $cli->getNamespace('Core')->addTask('my-example', '\MyProject\Tools\Cli\Tasks\MyExampleTask');
+
 
 ## CLI Tasks documentation
 

bin/doctrine.php

 <?php
 
-require 'Doctrine/Common/ClassLoader.php';
+require_once __DIR__ . '/../lib/Doctrine/Common/ClassLoader.php';
 
 $classLoader = new \Doctrine\Common\ClassLoader('Doctrine');
+$classLoader->setIncludePath(__DIR__ . '/../lib');
 $classLoader->register();
 
-$cli = new \Doctrine\ORM\Tools\Cli\CliController();
+$configuration = new \Doctrine\Common\Cli\Configuration();
+
+$cli = new \Doctrine\Common\Cli\CliController($configuration);
 $cli->run($_SERVER['argv']);
\ No newline at end of file

lib/Doctrine/Common/Cli/AbstractNamespace.php

+<?php
+/*
+ *  $Id$
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * This software consists of voluntary contributions made by many individuals
+ * and is licensed under the LGPL. For more information, see
+ * <http://www.doctrine-project.org>.
+ */
+ 
+namespace Doctrine\Common\Cli;
+
+use Doctrine\Common\Util\Inflector,
+    Doctrine\Common\DoctrineException;
+
+/**
+ * Abstract CLI Namespace class
+ *
+ * @license http://www.opensource.org/licenses/lgpl-license.php LGPL
+ * @link    www.doctrine-project.org
+ * @since   2.0
+ * @version $Revision$
+ * @author  Benjamin Eberlei <kontakt@beberlei.de>
+ * @author  Guilherme Blanco <guilhermeblanco@hotmail.com>
+ * @author  Jonathan Wage <jonwage@gmail.com>
+ * @author  Roman Borschel <roman@code-factory.org>
+ */
+abstract class AbstractNamespace
+{
+    /**
+     * @var Configuration CLI Configuration instance
+     */
+    private $_configuration = null;
+    
+    /**
+     * @var AbstractPrinter CLI Printer instance
+     */
+    private $_printer = null;
+    
+    /**
+     * @var AbstractNamespace CLI Namespace instance
+     */
+    private $_parentNamespace = null;
+    
+    /**
+     * @var array Available namespaces
+     */
+    private $_namespaces = array();
+    
+    /**
+     * Add a single namespace to CLI.
+     * Example of inclusion support to a single namespace:
+     *
+     *     [php]
+     *     $cliOrmNamespace->addNamespace('my-custom-namespace');
+     *
+     * @param string $name CLI Namespace name
+     *
+     * @return CliController This object instance
+     */
+    public function addNamespace($name)
+    {
+        $name = self::formatName($name);
+    
+        if ($this->hasNamespace($name)) {
+            throw DoctrineException::cannotOverrideNamespace($name);
+        }
+        
+        return $this->overrideNamespace($name);
+    }
+    
+    /**
+     * Overrides a namespace to CLI.
+     * Example of inclusion support to a single namespace:
+     *
+     *     [php]
+     *     $cli->overrideNamespace('orm');
+     *
+     * @param string $name CLI Namespace name
+     *
+     * @return AbstractNamespace Newly created CLI Namespace
+     */
+    public function overrideNamespace($name)
+    {    
+        $taskNamespace = new TaskNamespace($name);
+        
+        $taskNamespace->setParentNamespace($this);
+        $taskNamespace->setPrinter($this->_printer);
+        $taskNamespace->setConfiguration($this->_configuration);
+        
+        $this->_namespaces[$taskNamespace->getName()] = $taskNamespace;
+        
+        return $taskNamespace;
+    }
+    
+    /**
+     * Retrieve CLI Namespace.
+     * Example of usage:
+     *
+     *     [php]
+     *     $cliOrmNamespace = $cli->getNamespace('ORM');
+     *
+     * @param string $name CLI Namespace name
+     *
+     * @return TaskNamespace CLI Namespace
+     */
+    public function getNamespace($name)
+    {
+        $name = self::formatName($name);
+        
+        return isset($this->_namespaces[$name]) 
+            ? $this->_namespaces[$name] : null;
+    }
+    
+    /**
+     * Check existance of a CLI Namespace
+     *
+     * @param string CLI Namespace name
+     *
+     * @return boolean TRUE if namespace if defined, false otherwise
+     */
+    public function hasNamespace($name)
+    {
+        return ($this->getNamespace($name) !== null);
+    }
+    
+    /**
+     * Defines the parent CLI Namespace
+     *
+     * @return AbstractNamespace
+     */
+    public function setParentNamespace(AbstractNamespace $namespace)
+    {
+        $this->_parentNamespace = $namespace;
+        
+        return $this;
+    }
+    
+    /**
+     * Retrieves currently parent CLI Namespace
+     *
+     * @return AbstractNamespace
+     */
+    public function getParentNamespace()
+    {
+        return $this->_parentNamespace;
+    }
+    
+    /**
+     * Retrieve all defined CLI Tasks
+     *
+     * @return array
+     */
+    public function getAvailableTasks()
+    {
+        $tasks = array();
+        
+        foreach ($this->_namespaces as $namespace) {
+            $tasks = array_merge($tasks, $namespace->getAvailableTasks());
+        }
+        
+        return $tasks;
+    }
+    
+    /**
+     * Defines the CLI Output Printer
+     *
+     * @param AbstractPrinter $printer CLI Output Printer
+     *
+     * @return AbstractNamespace
+     */
+    public function setPrinter(Printers\AbstractPrinter $printer = null)
+    {
+        $this->_printer = $printer ?: new Printers\AnsiColorPrinter;
+        
+        return $this;
+    }
+    
+    /**
+     * Retrieves currently used CLI Output Printer
+     *
+     * @return AbstractPrinter
+     */
+    public function getPrinter()
+    {
+        return $this->_printer;
+    }
+    
+    /**
+     * Defines the CLI Configuration
+     *
+     * #param Configuration $configuration CLI Configuration
+     *
+     * @return AbstractNamespace
+     */
+    public function setConfiguration(Configuration $config)
+    {
+        $this->_configuration = $config;
+        
+        return $this;
+    }
+    
+    /**
+     * Retrieves currently used CLI Configuration
+     *
+     * @return Configuration
+     */
+    public function getConfiguration()
+    {
+        return $this->_configuration;
+    }
+    
+    /**
+     * Formats the CLI Namespace name into a camel-cased name
+     *
+     * @param string $name CLI Namespace name
+     *
+     * @return string Formatted CLI Namespace name
+     */
+    public static function formatName($name)
+    {
+        return Inflector::classify($name);
+    }
+}
\ No newline at end of file

lib/Doctrine/ORM/Tools/Cli/CliController.php → lib/Doctrine/Common/Cli/CliController.php

@@ -19,12 +19,7 @@
  * <http://www.doctrine-project.org>.
  */
  
-namespace Doctrine\ORM\Tools\Cli;
-
-use Doctrine\Common\Util\Inflector,
-    Doctrine\Common\Cli\Printers\AbstractPrinter,
-    Doctrine\Common\Cli\Printers\AnsiColorPrinter,
-    Doctrine\ORM\Tools\Cli\Tasks\AbstractTask;
+namespace Doctrine\Common\Cli;
 
 /**
  * Generic CLI Controller of Tasks execution
@@ -40,86 +35,60 @@ use Doctrine\Common\Util\Inflector,
  *         public function validate();
  *     }
  *
- * And then, include the support to it in your command-line script:
+ * And then, load the namespace assoaicated an include the support to it in your command-line script:
  *
  *     [php]
- *     $cli = new Doctrine\ORM\Tools\Cli\CliController();
- *     $cli->addTask('myTask', 'MyProject\Tools\Cli\Tasks\MyTask');
+ *     $cli = new Doctrine\Common\Cli\CliController();
+ *     $cliNS = $cli->getNamespace('custom');
+ *     $cliNS->addTask('myTask', 'MyProject\Tools\Cli\Tasks\MyTask');
  *
  * To execute, just type any classify-able name:
  *
- *     $ cli.php my-task
+ *     $ cli.php custom:my-task
  *
  * @license http://www.opensource.org/licenses/lgpl-license.php LGPL
  * @link    www.doctrine-project.org
  * @since   2.0
  * @version $Revision$
+ * @author  Benjamin Eberlei <kontakt@beberlei.de>
  * @author  Guilherme Blanco <guilhermeblanco@hotmail.com>
  * @author  Jonathan Wage <jonwage@gmail.com>
  * @author  Roman Borschel <roman@code-factory.org>
  */
-class CliController
+class CliController extends AbstractNamespace
 {
-    /**
-     * @var AbstractPrinter CLI Printer instance
-     */
-    private $_printer = null;
-    
-    /**
-     * @var array Available tasks
-     */
-    private $_tasks = array();
-    
     /**
      * The CLI processor of tasks
      *
      * @param AbstractPrinter $printer CLI Output printer
      */
-    public function __construct(AbstractPrinter $printer = null)
+    public function __construct(Configuration $config, AbstractPrinter $printer = null)
     {
-        //$this->_printer = new Printer\Normal();
-        $this->_printer = $printer ?: new AnsiColorPrinter;
-        
-        // Include core tasks
-        $ns = 'Doctrine\ORM\Tools\Cli\Tasks';
-        
-        $this->addTasks(array(
-            'help'                       => $ns . '\HelpTask',
-            'version'                    => $ns . '\VersionTask',
-            'schema-tool'                => $ns . '\SchemaToolTask',
-            'run-sql'                    => $ns . '\RunSqlTask',
-            'run-dql'                    => $ns . '\RunDqlTask',
-            'convert-mapping'            => $ns . '\ConvertMappingTask',
-            'generate-proxies'           => $ns . '\GenerateProxiesTask',
-            'clear-cache'                => $ns . '\ClearCacheTask',
-            'ensure-production-settings' => $ns . '\EnsureProductionSettingsTask'
-        ));
+        $this->setPrinter($printer);
+        $this->setConfiguration($config);
+        
+        // Include core namespaces of tasks
+        $ns = '\Doctrine\Common\Cli\Tasks';
+        $this->addNamespace('Core')
+             ->addTask('help', $ns . '\HelpTask');
+        
+        $ns = '\Doctrine\ORM\Tools\Cli\Tasks';
+        $this->addNamespace('Orm')
+             ->addTask('clear-cache', $ns . '\ClearCacheTask')
+             ->addTask('convert-mapping', $ns . '\ConvertMappingTask')
+             ->addTask('ensure-production-settings', $ns . '\EnsureProductionSettingsTask')
+             ->addTask('generate-proxies', $ns . '\GenerateProxiesTask')
+             ->addTask('run-dql', $ns . '\RunDqlTask')
+             ->addTask('schema-tool', $ns . '\SchemaToolTask')
+             ->addTask('version', $ns . '\VersionTask');
+        
+        $ns = '\Doctrine\DBAL\Tools\Cli\Tasks';
+        $this->addNamespace('Dbal')
+             ->addTask('run-sql', $ns . '\RunSqlTask');
     }
     
     /**
-     * Add a collection of tasks to the CLI.
-     * To include them, just call the method with the following structure:
-     *
-     *    [php]
-     *    $cli->addTasks(array(
-     *        'my-custom-task' => 'MyProject\Cli\Tasks\MyCustomTask',
-     *        ...
-     *    ));
-     *
-     * @param array $tasks CLI Tasks to be included
-     * @return CliController This object instance
-     */
-    public function addTasks($tasks)
-    {
-        foreach ($tasks as $name => $class) {
-            $this->addTask($name, $class);
-        }
-        
-        return $this;
-    }
-    
-    /**
-     * Add a single task to CLI.
+     * Add a single task to CLI Core Namespace. This method acts as a delegate.
      * Example of inclusion support to a single task:
      *
      *     [php]
@@ -127,15 +96,12 @@ class CliController
      *
      * @param string $name CLI Task name
      * @param string $class CLI Task class (FQCN - Fully Qualified Class Name)
+     *
      * @return CliController This object instance
      */
     public function addTask($name, $class)
     {
-        // Convert $name into a class equivalent 
-        // (ie. 'show_version' => 'showVersion')
-        $name = $this->_processTaskName($name);
-        
-        $this->_tasks[$name] = $class;
+        $this->getNamespace('Core')->addTask($name, $class);
         
         return $this;
     }
@@ -151,70 +117,52 @@ class CliController
         // Remove script file argument
         $scriptFile = array_shift($args);
         
-        // Automatically prepend 'help' task if:
-        // 1- No arguments were passed
-        // 2- First item is not a valid task name
-        if (empty($args) || ! isset($this->_tasks[$this->_processTaskName($args[0])])) {
-            array_unshift($args, 'help');
+        // If not arguments are defined, include "help"
+        if (empty($args)) {
+            array_unshift($args, 'Core:Help');
         }
         
         // Process all sent arguments
-        $processedArgs = $this->_processArguments($args);
+        $args = $this->_processArguments($args);
 
         try {
-            $this->_printer->writeln('Doctrine Command Line Interface' . PHP_EOL, 'HEADER');
+            $this->getPrinter()->writeln('Doctrine Command Line Interface' . PHP_EOL, 'HEADER');
             
             // Handle possible multiple tasks on a single command
-            foreach($processedArgs as $taskData) {
-                // Retrieve the task name and arguments
-                $taskName = $this->_processTaskName($taskData['name']);
+            foreach($args as $taskData) {
+                $taskName = $taskData['name'];
                 $taskArguments = $taskData['args'];
                 
-                // Check if task exists
-                if (isset($this->_tasks[$taskName]) && class_exists($this->_tasks[$taskName], true)) {
-                    // Initializing EntityManager
-                    $em = $this->_initializeEntityManager($processedArgs, $taskArguments);
-                
-                    // Instantiate and execute the task
-                    $task = new $this->_tasks[$taskName]($this->_printer);
-                    $task->setAvailableTasks($this->_tasks);
-                    $task->setEntityManager($em);
-                    $task->setArguments($taskArguments);
-                
-                    if (
-                        (isset($taskArguments['help']) && $taskArguments['help']) ||
-                        (isset($taskArguments['h']) && $taskArguments['h'])
-                    ) {
-                        $task->extendedHelp(); // User explicitly asked for help option
-                    } else if ($this->_isTaskValid($task)) {
-                        $task->run();
-                    } else {
-                        $this->_printer->write(PHP_EOL);
-                        $task->basicHelp(); // Fallback of not-valid task arguments
-                        $this->_printer->write(PHP_EOL);
-                    }
-                } else {
-                    throw \Doctrine\Common\DoctrineException::taskDoesNotExist($taskName);
+                $this->runTask($taskName, $taskArguments);
             }
+        } catch (\Exception $e) {
+            $message = $taskName . ' => ' . $e->getMessage();
+            
+            if (isset($taskArguments['trace']) && $taskArguments['trace']) {
+                $message .= PHP_EOL . PHP_EOL . $e->getTraceAsString();
             }
-        } catch (\Doctrine\Common\DoctrineException $e) {
-            $this->_printer->writeln(
-                $taskName . ': ' . $e->getMessage() . PHP_EOL . PHP_EOL . $e->getTraceAsString(), 'ERROR'
-            );
+                     
+            $this->getPrinter()->writeln($message, 'ERROR');
         }
+        
     }
     
     /**
-     * Processes the given task name and return it formatted
+     * Executes a given CLI Task
      *
-     * @param string $taskName Task name
-     * @return string
+     * @param atring $name CLI Task name
+     * @param array $args CLI Arguments
      */
-    private function _processTaskName($taskName)
+    public function runTask($name, $args = array())
     {
-        $taskName = str_replace('-', '_', $taskName);
+        // Retrieve namespace name, task name and arguments
+        $taskPath = explode(':', $name);
                 
-        return Inflector::classify($taskName);
+        // Find the correct namespace where the task is defined
+        $taskName = array_pop($taskPath);
+        $taskNamespace = $this->_retrieveTaskNamespace($taskPath);
+                
+        $taskNamespace->runTask($taskName, $args);
     }
     
     /**
@@ -248,10 +196,10 @@ class CliController
      * )
      *
      * Based on implementation of Patrick Fisher <patrick@pwfisher.com> available at:
-     * 
      * http://pwfisher.com/nucleus/index.php?itemid=45
      *
      * @param array $args
+     *
      * @return array
      */
     private function _processArguments($args = array())
@@ -274,8 +222,9 @@ class CliController
                 } else {
                     $key = substr($arg, 2, $eqPos - 2);
                     $value = substr($arg, $eqPos + 1);
-                    $value = (strpos($value, ' ') !== false) ? $value 
-                        : array_values(array_filter(explode(',', $value), function ($v) { return trim($v) != ''; }));
+                    $value = (strpos($value, ' ') !== false) ? $value : array_values(array_filter(
+                        explode(',', $value), function ($v) { return trim($v) != ''; }
+                    ));
                     $out[$key] = ( ! is_array($value) || (is_array($value) && count($value) > 1)) 
                         ? $value : $value[0];
                 }
@@ -285,8 +234,9 @@ class CliController
                 if (substr($arg, 2, 1) == '='){
                     $key = substr($arg, 1, 1);
                     $value = substr($arg, 3);
-                    $value = (strpos($value, ' ') !== false) ? $value 
-                        : array_values(array_filter(explode(',', $value), function ($v) { return trim($v) != ''; }));
+                    $value = (strpos($value, ' ') !== false) ? $value : array_values(array_filter(
+                        explode(',', $value), function ($v) { return trim($v) != ''; }
+                    ));
                     $out[$key] = ( ! is_array($value) || (is_array($value) && count($value) > 1)) 
                         ? $value : $value[0];
                 // -abc
@@ -313,52 +263,35 @@ class CliController
     }
 
     /**
-     * Checks if CLI Task is valid based on given arguments.
+     * Retrieve the correct namespace given a namespace path
      *
-     * @param AbstractTask $task CLI Task instance
-     */
-    private function _isTaskValid(AbstractTask $task)
-    {
-        // TODO: Should we change the behavior and check for 
-        // required and optional arguments here?
-        return $task->validate();
-    }
-    
-    /**
-     * Initialized Entity Manager for Tasks
+     * @param array $namespacePath CLI Namespace path
      *
-     * @param array CLI Task arguments
-     * @return EntityManager
+     * @return AbstractNamespace
      */
-    private function _initializeEntityManager(array $args, array &$taskArgs)
+    private function _retrieveTaskNamespace($namespacePath)
     {
-        // Initialize EntityManager
-        $configFile = ( ! isset($taskArgs['config'])) ? './cli-config.php' : $taskArgs['config'];
-
-        if (file_exists($configFile)) {
-            // Including configuration file
-            require $configFile;
+        $taskNamespace = $this;
+        $currentNamespacePath = '';
         
-            // Check existance of EntityManager
-            if ( ! isset($em)) {
-                throw new \Doctrine\Common\DoctrineException(
-                    'No EntityManager created in configuration'
-                );
+        // Consider possible missing namespace (ie. "help") and forward to "core"
+        if (count($namespacePath) == 0) {
+            $namespacePath = array('Core');
         }
         
-            // Check for gloal argument options here
-            if (isset($globalArguments)) {
-                // Merge arguments. Values specified via the CLI take preference.
-                $taskArgs = array_merge($globalArguments, $taskArgs);
+        // Loop through each namespace
+        foreach ($namespacePath as $namespaceName) {
+            $taskNamespace = $taskNamespace->getNamespace($namespaceName);
+            
+            // If the given namespace returned "null", throw exception
+            if ($taskNamespace === null) {
+                throw CliException::namespaceDoesNotExist($namespaceName, $currentNamespacePath);
             }
             
-            return $em;
-        } else {
-            throw new \Doctrine\Common\DoctrineException(
-                'Requested configuration file [' . $configFile . '] does not exist'
-            );
+            $currentNamespacePath = (( ! empty($currentNamespacePath)) ? ':' : '') 
+                                  . $taskNamespace->getName();
         }
         
-        return null;
+        return $taskNamespace;
     }
 }
\ No newline at end of file

lib/Doctrine/Common/Cli/CliException.php

+<?php
+/*
+ *  $Id$
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * This software consists of voluntary contributions made by many individuals
+ * and is licensed under the LGPL. For more information, see
+ * <http://www.doctrine-project.org>.
+ */
+ 
+namespace Doctrine\Common\Cli;
+
+use Doctrine\Common\DoctrineException;
+
+/**
+ * CLI Exception class
+ *
+ * @license http://www.opensource.org/licenses/lgpl-license.php LGPL
+ * @link    www.doctrine-project.org
+ * @since   2.0
+ * @version $Revision$
+ * @author  Benjamin Eberlei <kontakt@beberlei.de>
+ * @author  Guilherme Blanco <guilhermeblanco@hotmail.com>
+ * @author  Jonathan Wage <jonwage@gmail.com>
+ * @author  Roman Borschel <roman@code-factory.org>
+ */
+class CliException extends DoctrineException
+{
+    public static function namespaceDoesNotExist($namespaceName, $namespacePath = '')
+    {
+        return new self(
+            "Namespace '{$namespaceName}' does not exist" . 
+            (( ! empty($namespacePath)) ? " in '{$namespacePath}'." : '.')
+        );
+    }
+
+    public static function taskDoesNotExist($taskName, $namespacePath)
+    {
+        return new self("Task '{$taskName}' does not exist in '{$namespacePath}'.");
+    }
+    
+    public static function cannotOverrideTask($taskName)
+    {
+        return new self("Task '{$taskName}' cannot be overriden.");
+    }
+}
\ No newline at end of file

lib/Doctrine/Common/Cli/Configuration.php

+<?php
+/*
+ *  $Id$
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * This software consists of voluntary contributions made by many individuals
+ * and is licensed under the LGPL. For more information, see
+ * <http://www.doctrine-project.org>.
+ */
+ 
+namespace Doctrine\Common\Cli;
+
+/**
+ * CLI Configuration class
+ *
+ * @license http://www.opensource.org/licenses/lgpl-license.php LGPL
+ * @link    www.doctrine-project.org
+ * @since   2.0
+ * @version $Revision$
+ * @author  Benjamin Eberlei <kontakt@beberlei.de>
+ * @author  Guilherme Blanco <guilhermeblanco@hotmail.com>
+ * @author  Jonathan Wage <jonwage@gmail.com>
+ * @author  Roman Borschel <roman@code-factory.org>
+ */
+class Configuration
+{
+    /**
+     * @var array Configuration attributes
+     */
+    private $_attributes = array();
+
+    /**
+     * Defines a new configuration attribute
+     *
+     * @param string $name Attribute name
+     * @param mixed $value Attribute value
+     *
+     * @return Configuration This object instance
+     */
+    public function setAttribute($name, $value = null)
+    {
+        $this->_attributes[$name] = $value;
+        
+        if ($value === null) {
+            unset($this->_attributes[$name]);
+        }
+        
+        return $this;
+    }
+    
+    /**
+     * Retrieves a configuration attribute
+     *
+     * @param string $name Attribute name
+     *
+     * @return mixed Attribute value 
+     */
+    public function getAttribute($name)
+    {
+        return isset($this->_attributes[$name])
+            ? $this->_attributes[$name] : null;
+    }
+    
+    /**
+     * Checks if configuration attribute is defined
+     *
+     * @param string $name Attribute name
+     *
+     * @return boolean TRUE if attribute exists, FALSE otherwise
+     */
+    public function hasAttribute($name)
+    {
+        return isset($this->_attribute[$name]);
+    }
+}
\ No newline at end of file

lib/Doctrine/Common/Cli/TaskDocumentation.php

@@ -41,6 +41,9 @@ class TaskDocumentation
     /** @var AbstractPrinter CLI Printer */
     private $_printer;
 
+    /** @var AbstractNamespace CLI Namespace */
+    private $_namespace;
+    
     /** @var string CLI Task name */
     private $_name;
 
@@ -53,14 +56,25 @@ class TaskDocumentation
     /**
      * Constructs a new CLI Task Documentation
      *
-     * @param AbstractPrinter CLI Printer
+     * @param AbstractNamespace CLI Namespace
      */
-    public function __construct(AbstractPrinter $printer)
+    public function __construct(AbstractNamespace $namespace)
     {
-        $this->_printer = $printer;
+        $this->_namespace = $namespace;
+        $this->_printer = $namespace->getPrinter();
         $this->_optionGroup = new OptionGroup(OptionGroup::CARDINALITY_M_N);
     }
     
+    /**
+     * Retrieves the CLI Namespace
+     *
+     * @return AbstractNamespace
+     */
+    public function getNamespace()
+    {
+        return $this->_namespace;
+    }
+    
     /**
      * Defines the CLI Task name
      *
@@ -84,6 +98,16 @@ class TaskDocumentation
         return $this->_name;
     }
     
+    /**
+     * Retrieves the full CLI Task name
+     *
+     * @return string Task full name
+     */
+    public function getFullName()
+    {
+        return $this->getNamespace()->getFullName() . ':' . $this->_name;
+    }
+    
     /**
      * Defines the CLI Task description
      *
@@ -139,7 +163,7 @@ class TaskDocumentation
      */
     public function getSynopsis()
     {
-        return $this->_printer->format($this->_name, 'KEYWORD') .  ' ' 
+        return $this->_printer->format($this->getFullName(), 'KEYWORD') .  ' ' 
              . trim($this->_optionGroup->formatPlain($this->_printer));
     }
     
@@ -153,7 +177,7 @@ class TaskDocumentation
         $printer = $this->_printer;
     
         return $printer->format('Task: ')
-             . $printer->format($this->_name, 'KEYWORD')
+             . $printer->format($this->getFullName(), 'KEYWORD')
              . $printer->format(PHP_EOL)
              . $printer->format('Synopsis: ')
              . $this->getSynopsis()

lib/Doctrine/Common/Cli/TaskNamespace.php

+<?php
+/*
+ *  $Id$
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * This software consists of voluntary contributions made by many individuals
+ * and is licensed under the LGPL. For more information, see
+ * <http://www.doctrine-project.org>.
+ */
+ 
+namespace Doctrine\Common\Cli;
+
+/**
+ * CLI Namespace class
+ *
+ * @license http://www.opensource.org/licenses/lgpl-license.php LGPL
+ * @link    www.doctrine-project.org
+ * @since   2.0
+ * @version $Revision$
+ * @author  Benjamin Eberlei <kontakt@beberlei.de>
+ * @author  Guilherme Blanco <guilhermeblanco@hotmail.com>
+ * @author  Jonathan Wage <jonwage@gmail.com>
+ * @author  Roman Borschel <roman@code-factory.org>
+ */
+class TaskNamespace extends AbstractNamespace
+{
+    /**
+     * @var boolean CLI Tasks flag to check if they are already initialized
+     */
+    private $_initialized = false;
+    
+    /**
+     * @var string CLI Namespace full name
+     */
+    private $_fullName = null;
+
+    /**
+     * @var string CLI Namespace name
+     */
+    private $_name = null;
+    
+    /**
+     * @var array Available tasks
+     */
+    private $_tasks = array();
+    
+    /**
+     * The CLI namespace
+     *
+     * @param string $name CLI Namespace name
+     */
+    public function __construct($name)
+    {
+        $this->_name = self::formatName($name);
+    }  
+    
+    /**
+     * Retrieve an instantiated CLI Task by given its name.
+     *
+     * @param string $name CLI Task name
+     *
+     * @return AbstractTask
+     */
+    public function getTask($name)
+    {
+        // Check if task exists in namespace 
+        if ($this->hasTask($name)) {
+            $taskClass = $this->_tasks[self::formatName($name)];
+
+            return new $taskClass($this);
+        }    
+        
+        throw CliException::taskDoesNotExist($name, $this->getFullName());
+    }
+    
+    /**
+     * Retrieve all CLI Task in this Namespace.
+     *
+     * @return array
+     */
+    public function getTasks()
+    {
+        return $this->_tasks;
+    }
+    
+    /**
+     * Retrieve all defined CLI Tasks
+     *
+     * @return array
+     */
+    public function getAvailableTasks()
+    {
+        $tasks = parent::getAvailableTasks();
+        
+        foreach ($this->_tasks as $taskName => $taskClass) {
+            $fullName = $this->getFullName() . ':' . $taskName;
+            
+            $tasks[$fullName] = $taskClass;
+        }
+        
+        return $tasks;
+    }
+    
+    /**
+     * Add a single task to CLI Namespace.
+     * Example of inclusion support to a single task:
+     *
+     *     [php]
+     *     $cliOrmNamespace->addTask('my-custom-task', 'MyProject\Cli\Tasks\MyCustomTask');
+     *
+     * @param string $name CLI Task name
+     * @param string $class CLI Task class (FQCN - Fully Qualified Class Name)
+     *
+     * @return TaskNamespace This object instance
+     */
+    public function addTask($name, $class)
+    {
+        $name = self::formatName($name);
+        
+        if ($this->hasTask($name)) {
+            throw DoctrineException::cannotOverrideTask($name);
+        }
+    
+        return $this->overrideTask($name, $class);
+    }
+    
+    /**
+     * Overrides task on CLI Namespace.
+     * Example of inclusion support to a single task:
+     *
+     *     [php]
+     *     $cliOrmNamespace->overrideTask('schema-tool', 'MyProject\Cli\Tasks\MyCustomTask');
+     *
+     * @param string $name CLI Task name
+     * @param string $class CLI Task class (FQCN - Fully Qualified Class Name)
+     *
+     * @return TaskNamespace This object instance
+     */
+    public function overrideTask($name, $class)
+    {    
+        $name = self::formatName($name);
+    
+        $this->_tasks[$name] = $class;
+        
+        return $this;
+    }
+    
+    /**
+     * Check existance of a CLI Task
+     *
+     * @param string CLI Task name
+     *
+     * @return boolean TRUE if CLI Task if defined, false otherwise
+     */
+    public function hasTask($name)
+    {
+        $name = self::formatName($name);
+    
+        return isset($this->_tasks[$name]);
+    }
+    
+    /**
+     * Retrieves the CLI Namespace name
+     *
+     * @return string CLI Namespace name
+     */
+    public function getName()
+    {
+        return $this->_name;
+    }
+    
+    /**
+     * Retrieves the full CLI Namespace name
+     *
+     * @return string CLI Namespace full name
+     */
+    public function getFullName()
+    {
+        if ($this->_fullName === null) {
+            $str = $this->_name;
+    
+            while (
+                ($parentNamespace = $this->getParentNamespace()) !== null && 
+                ! ($parentNamespace instanceof CliController)
+            ) {
+                $str = $parentNamespace->getFullName() . ':' . $str;
+            }
+    
+            $this->_fullName = $str;
+        }
+        
+        return $this->_fullName;
+    }
+    
+    /**
+     * Effectively instantiate and execute a given CLI Task
+     *
+     * @param string $name CLI Task name
+     * @param array $arguments CLI Task arguments
+     */
+    public function runTask($name, $arguments = array())
+    {
+        try {
+            $task = $this->getTask($name);
+            $task->setArguments($arguments);
+        
+            if ((isset($arguments['help']) && $arguments['help']) || (isset($arguments['h']) && $arguments['h'])) {
+                $task->extendedHelp(); // User explicitly asked for help option
+            } else if (isset($arguments['basic-help']) && $arguments['basic-help']) {
+                $task->basicHelp(); // User explicitly asked for basic help option
+            } else if ($task->validate()) {
+                $task->run();
+            }
+        } catch (DoctrineException $e) {
+            $message = $this->getFullName() . ':' . $name . ' => ' . $e->getMessage();
+            $printer = $this->getPrinter();
+            
+            // If we want the trace of calls, append to error message
+            if (isset($arguments['trace']) && $arguments['trace']) {
+                $message .= PHP_EOL . PHP_EOL . $e->getTraceAsString();
+            }
+            
+            $printer->writeln($messageMessage, 'ERROR');
+            
+            // Unable instantiate task or task is not valid
+            if ($task !== null) {
+                $printer->write(PHP_EOL);
+                $task->basicHelp(); // Fallback of not-valid task arguments
+            }
+            
+            $printer->write(PHP_EOL);
+        }
+    }
+}
\ No newline at end of file

lib/Doctrine/ORM/Tools/Cli/Tasks/AbstractTask.php → lib/Doctrine/Common/Cli/Tasks/AbstractTask.php

@@ -19,29 +19,21 @@
  * <http://www.doctrine-project.org>.
  */
  
-namespace Doctrine\ORM\Tools\Cli\Tasks;
+namespace Doctrine\Common\Cli\Tasks;
 
-use Doctrine\Common\Cli\Printers\AbstractPrinter,
-    Doctrine\Common\Cli\TaskDocumentation,
-    Doctrine\Common\Cli\OptionGroup,
-    Doctrine\Common\Cli\Option;
+use Doctrine\Common\Cli\AbstractNamespace,
+    Doctrine\Common\Cli\TaskDocumentation;
 
 /**
  * Base class for CLI Tasks.
  * Provides basic methods and requires implementation of methods that
  * each task should implement in order to correctly work.
  * 
- * The following arguments are common to all tasks:
- * 
- * Argument: --config=<path>
- * Description: Specifies the path to the configuration file to use. The configuration file
- *              can bootstrap an EntityManager as well as provide defaults for any cli
- *              arguments.
- *
  * @license http://www.opensource.org/licenses/lgpl-license.php LGPL
  * @link    www.doctrine-project.org
  * @since   2.0
  * @version $Revision$
+ * @author  Benjamin Eberlei <kontakt@beberlei.de>
  * @author  Guilherme Blanco <guilhermeblanco@hotmail.com>
  * @author  Jonathan Wage <jonwage@gmail.com>
  * @author  Roman Borschel <roman@code-factory.org>
@@ -49,7 +41,7 @@ use Doctrine\Common\Cli\Printers\AbstractPrinter,
 abstract class AbstractTask
 {
     /**
-     * @var AbstractPrinter CLI Output Printer
+     * @var AbstractNamespace CLI Namespace
      */
     protected $_printer;
 
@@ -59,119 +51,86 @@ abstract class AbstractTask
     protected $_documentation;
     
     /**
-     * @var array CLI argument options
-     */
-    protected $_arguments;
-    
-    /**
-     * @var array Available CLI tasks
+     * @var array CLI Task arguments
      */
-    protected $_availableTasks;
-    
-    /**
-     * @var EntityManager The EntityManager instance
-     */
-    protected $_em;
+    protected $_arguments = array();
     
     /**
      * Constructor of CLI Task
      *
-     * @param AbstractPrinter CLI Output Printer
+     * @param AbstractNamespace CLI Namespace
      */
-    public function __construct(AbstractPrinter $printer)
+    public function __construct(AbstractNamespace $namespace)
     {
-        $this->_printer = $printer;
-        $this->_documentation = new TaskDocumentation($printer);
-        
-        // Include configuration option
-        $configGroup = new OptionGroup(OptionGroup::CARDINALITY_0_1);
-        $configGroup->addOption(
-            new Option('config', '<FILE_PATH>', 'Configuration file for EntityManager.')
-        );
-        $this->_documentation->addOption($configGroup);
+        $this->_namespace = $namespace;
+        $this->_documentation = new TaskDocumentation($namespace);
         
         // Complete the CLI Task Documentation creation
         $this->buildDocumentation();
     }
 
     /**
-     * Retrieves currently used CLI Output Printer
+     * Retrieves the CLI Namespace
      *
-     * @return AbstractPrinter
+     * @return AbstractNamespace
      */
-    public function getPrinter()
+    public function getNamespace()
     {
-        return $this->_printer;
+        return $this->_namespace;
     }
     
     /**
-     * Defines the CLI arguments
+     * Retrieves the CLI Task Documentation
      *
-     * @param array CLI argument options
+     * @return TaskDocumentation
      */
-    public function setArguments($arguments)
+    public function getDocumentation()
     {
-        $this->_arguments = $arguments;
+        return $this->_documentation;
     }
     
     /**
-     * Retrieves current CLI arguments
+     * Defines the CLI Task arguments
      *
-     * @return array
-     */
-    public function getArguments()
-    {
-        return $this->_arguments;
-    }
-    
-    /**
-     * Defines the available CLI tasks
+     * @param array $arguments CLI Task arguments
      *
-     * @param array Available CLI tasks
+     * @return AbstractTask
      */
-    public function setAvailableTasks($availableTasks)
+    public function setArguments(array $arguments = array())
     {
-        $this->_availableTasks = $availableTasks;
-    }
+        $this->_arguments = $arguments;
         
-    /**
-     * Retrieves the available CLI tasks
-     *
-     * @return array
-     */
-    public function getAvailableTasks()
-    {
-        return $this->_availableTasks;
+        return $this;
     }
     
     /**
-     * Defines the EntityManager
+     * Retrieves the CLI Task arguments
      *
-     * @param EntityManager The EntityManager instance
+     * @return array
      */
-    public function setEntityManager($em)
+    public function getArguments()
     {
-        $this->_em = $em;
+        return $this->_arguments;
     }
 
     /**
-     * Retrieves current EntityManager
+     * Retrieves currently used CLI Output Printer
      *
-     * @return EntityManager
+     * @return AbstractPrinter
      */
-    public function getEntityManager()
+    public function getPrinter()
     {
-        return $this->_em;
+        return $this->_namespace->getPrinter();
     }
 
     /**
-     * Retrieves the CLI Task Documentation
+     * Retrieves current used CLI Configuration
      *
-     * @return TaskDocumentation
+     * @return Configuration
      */
-    public function getDocumentation()
+    public function getConfiguration()
     {
-        return $this->_documentation;
+        return $this->_namespace->getConfiguration();
     }
     
     /**
@@ -186,7 +145,7 @@ abstract class AbstractTask
      */
     public function extendedHelp()
     {
-        $this->_printer->output($this->_documentation->getCompleteDocumentation());
+        $this->getPrinter()->output($this->_documentation->getCompleteDocumentation());
     }
     
     /**
@@ -207,7 +166,7 @@ abstract class AbstractTask
      */
     public function basicHelp()
     {
-        $this->_printer
+        $this->getPrinter()
              ->output($this->_documentation->getSynopsis())
              ->output(PHP_EOL)
              ->output('  ' . $this->_documentation->getDescription())
@@ -221,7 +180,11 @@ abstract class AbstractTask
      *
      * @return boolean
      */
-    abstract public function validate();
+    public function validate()
+    {
+        // TODO implement DAG here!
+        return true;
+    }
     
     /**
      * Safely execution of task.

lib/Doctrine/ORM/Tools/Cli/Tasks/HelpTask.php → lib/Doctrine/Common/Cli/Tasks/HelpTask.php

@@ -19,9 +19,9 @@
  * <http://www.doctrine-project.org>.
  */
  
-namespace Doctrine\ORM\Tools\Cli\Tasks;
+namespace Doctrine\Common\Cli\Tasks;
 
-use Doctrine\Common\Util\Inflector;
+use Doctrine\Common\Cli\CliException;
 
 /**
  * CLI Task to display available commands help
@@ -30,6 +30,7 @@ use Doctrine\Common\Util\Inflector;
  * @link    www.doctrine-project.org
  * @since   2.0
  * @version $Revision$
+ * @author  Benjamin Eberlei <kontakt@beberlei.de>
  * @author  Guilherme Blanco <guilhermeblanco@hotmail.com>
  * @author  Jonathan Wage <jonwage@gmail.com>
  * @author  Roman Borschel <roman@code-factory.org>
@@ -60,38 +61,25 @@ class HelpTask extends AbstractTask
         $this->run();
     }
 
-    /**
-     * @inheritdoc
-     */    
-    public function validate()
-    {
-        return true;
-    }
-
     /**
      * Exposes the available tasks
      *
      */
     public function run()
     {
-        $this->getPrinter()->writeln('Available Tasks:', 'NONE');
+        $this->getPrinter()->writeln('Available Tasks:', 'HEADER')->write(PHP_EOL);
         
-        // Switch between ALL available tasks and display the basic Help of each one
-        $availableTasks = $this->getAvailableTasks();
+        // Find the CLI Controller
+        $cliController = $this->getNamespace()->getParentNamespace();
         
-        $helpTaskName = Inflector::classify(str_replace('-', '_', 'help'));
-        unset($availableTasks[$helpTaskName]);
+        // Switch between ALL available tasks and display the basic Help of each one
+        $availableTasks = $cliController->getAvailableTasks();
+        unset($availableTasks['Core:Help']);
         
         ksort($availableTasks);
         
-        foreach ($availableTasks as $taskName => $taskClass) {
-            $task = new $taskClass($this->getPrinter());
-            
-            $task->setAvailableTasks($availableTasks);
-            $task->setEntityManager($this->getEntityManager());
-            $task->setArguments($this->getArguments());
-            
-            $task->basicHelp();
+        foreach (array_keys($availableTasks) as $taskName) {
+            $cliController->runTask($taskName, array('basic-help' => true));
         }
     }
 }
\ No newline at end of file

lib/Doctrine/Common/Util/Inflector.php

@@ -56,19 +56,7 @@ class Inflector
      */
     public static function classify($word)
     {
-        $word = preg_replace('/[$]/', '', $word);
-        return preg_replace_callback('~(_?)(_)([\w])~', array(__CLASS__, "classifyCallback"), ucfirst(strtolower($word)));
-    }
-
-    /**
-     * Callback function to classify a classname properly.
-     *
-     * @param  array  $matches  An array of matches from a pcre_replace call
-     * @return string $string   A string with matches 1 and mathces 3 in upper case.
-     */
-    public static function classifyCallback($matches)
-    {
-        return $matches[1] . strtoupper($matches[3]);
+        return str_replace(" ", "", ucwords(strtr($word, "_-", "  ")));
     }
 
     /**

lib/Doctrine/ORM/Tools/Cli/Tasks/RunSqlTask.php → lib/Doctrine/DBAL/Tools/Cli/Tasks/RunSqlTask.php

@@ -19,9 +19,10 @@
  * <http://www.doctrine-project.org>.
  */
 
-namespace Doctrine\ORM\Tools\Cli\Tasks;
+namespace Doctrine\DBAL\Tools\Cli\Tasks;
 
-use Doctrine\Common\DoctrineException,
+use Doctrine\Common\Cli\Tasks\AbstractTask,
+    Doctrine\Common\Cli\CliException,
     Doctrine\Common\Util\Debug,
     Doctrine\Common\Cli\Option,
     Doctrine\Common\Cli\OptionGroup;
@@ -47,13 +48,11 @@ class RunSqlTask extends AbstractTask
     {
         $dqlAndFile = new OptionGroup(OptionGroup::CARDINALITY_1_1, array(
             new Option(
-                'sql', '<DQL>', 
-                'The SQL to execute.' . PHP_EOL . 
+                'sql', '<SQL>', 'The SQL to execute.' . PHP_EOL . 
                 'If defined, --file can not be requested on same task.'
             ),
             new Option(
-                'file', '<FILE_PATH>', 
-                'The path to the file with the SQL to execute.' . PHP_EOL . 
+                'file', '<PATH>', 'The path to the file with the SQL to execute.' . PHP_EOL . 
                 'If defined, --sql can not be requested on same task.'
             )
         ));
@@ -75,15 +74,17 @@ class RunSqlTask extends AbstractTask
      */
     public function validate()
     {
-        $args = $this->getArguments();
-        $printer = $this->getPrinter();
+        $arguments = $this->getArguments();
+        $em = $this->getConfiguration()->getAttribute('em');
         
-        $isSql = isset($args['sql']);
-        $isFile = isset($args['file']);
+        if ($em === null) {
+            throw new CliException(
+                "Attribute 'em' of CLI Configuration is not defined or it is not a valid EntityManager."
+            );
+        }
         
-        if ( ! ($isSql ^ $isFile)) {
-            $printer->writeln("One of --sql or --file required, and only one.", 'ERROR');
-            return false;
+        if ( ! (isset($arguments['sql']) ^ isset($arguments['file']))) {
+            throw new CliException('One of --sql or --file required, and only one.');
         }
         
         return true;
@@ -95,27 +96,23 @@ class RunSqlTask extends AbstractTask
      */
     public function run()
     {
-        $args = $this->getArguments();
+        $arguments = $this->getArguments();
         
-        try {
-            if (isset($args['file'])) {
+        if (isset($arguments['file'])) {
             //TODO
-            } else if (isset($args['sql'])) {
-                $conn = $this->getEntityManager()->getConnection();
+        } else if (isset($arguments['sql'])) {
+            $em = $this->getConfiguration()->getAttribute('em');
             
-                if (preg_match('/^select/i', $args['sql'])) {
-                    $stmt = $conn->execute($args['sql']);
+            if (preg_match('/^select/i', $arguments['sql'])) {
+                $stmt = $em->getConnection()->execute($arguments['sql']);
                 $resultSet = $stmt->fetchAll(\Doctrine\DBAL\Connection::FETCH_ASSOC);
             } else {
-                    $resultSet = $conn->executeUpdate($args['sql']);
+                $resultSet = $em->getConnection()->executeUpdate($arguments['sql']);
             }
             
-                $maxDepth = isset($args['depth']) ? $args['depth'] : 7;
+            $maxDepth = isset($args['arguments']) ? $arguments['depth'] : 7;
         
             Debug::dump($resultSet, $maxDepth);
         }
-        } catch (\Exception $ex) {
-            throw new DoctrineException($ex);
-        }
     }
 }
\ No newline at end of file

lib/Doctrine/ORM/Tools/Cli/Tasks/ClearCacheTask.php

@@ -21,8 +21,8 @@
  
 namespace Doctrine\ORM\Tools\Cli\Tasks;
 
-use Doctrine\Common\DoctrineException,
-    Doctrine\Common\Util\Debug,
+use Doctrine\Common\Cli\Tasks\AbstractTask,
+    Doctrine\Common\Cli\CliException,
     Doctrine\Common\Cli\Option,
     Doctrine\Common\Cli\OptionGroup,
     Doctrine\Common\Cache\AbstractDriver;
@@ -56,7 +56,7 @@ class ClearCacheTask extends AbstractTask
                     new Option('id', '<ID>', 'The id of the cache entry to delete (accepts * wildcards).'),
                     new Option('regex', '<REGEX>', 'Delete cache entries that match the given regular expression.'),
                     new Option('prefix', '<PREFIX>', 'Delete cache entries that have the given prefix.'),
-                    new Option('suffic', '<SUFFIX>', 'Delete cache entries that have the given suffix.')
+                    new Option('suffix', '<SUFFIX>', 'Delete cache entries that have the given suffix.')
                 ))
             ))
         ));
@@ -68,43 +68,52 @@ class ClearCacheTask extends AbstractTask
                 ->addOption($cacheOptions);
     }
 
+    /**
+     * @inheritdoc
+     */
     public function validate()
     {
-        $printer = $this->getPrinter();
-        $args = $this->getArguments();
+        $arguments = $this->getArguments();
+        
+        // Check if we have an active EntityManager
+        $em = $this->getConfiguration()->getAttribute('em');
+        
+        if ($em === null) {
+            throw new CliException(
+                "Attribute 'em' of CLI Configuration is not defined or it is not a valid EntityManager."
+            );
+        }
         
         // When clearing the query cache no need to specify
         // id, regex, prefix or suffix.
-        if ((isset($args['query']) || isset($args['metadata']))
-            && (isset($args['id'])
-                || isset($args['regex'])
-                || isset($args['prefix'])
-                || isset($args['suffix']))) {
-
-            $printer->writeln(
+        if (
+            (isset($arguments['query']) || isset($arguments['metadata'])) && (isset($arguments['id']) || 
+            isset($args['regex']) || isset($args['prefix']) || isset($args['suffix']))
+        ) {
+            throw new CliException(
                 'When clearing the query or metadata cache do not ' .
-                'specify any --id, --regex, --prefix or --suffix.', 
-                'ERROR'
+                'specify any --id, --regex, --prefix or --suffix.'
             );
-
-            return false;
         }
 
         return true;
     }
 
+    /**
+     * @inheritdoc
+     */
     public function run()
     {
+        $arguments = $this->getArguments();
         $printer = $this->getPrinter();
-        $args = $this->getArguments();
         
-        $query = isset($args['query']);
-        $result = isset($args['result']);
-        $metadata = isset($args['metadata']);
-        $id = isset($args['id']) ? $args['id'] : null;
-        $regex = isset($args['regex']) ? $args['regex'] : null;
-        $prefix = isset($args['prefix']) ? $args['prefix'] : null;
-        $suffix = isset($args['suffix']) ? $args['suffix'] : null;
+        $query = isset($arguments['query']);
+        $result = isset($arguments['result']);
+        $metadata = isset($arguments['metadata']);
+        $id = isset($arguments['id']) ? $arguments['id'] : null;
+        $regex = isset($arguments['regex']) ? $arguments['regex'] : null;
+        $prefix = isset($arguments['prefix']) ? $arguments['prefix'] : null;
+        $suffix = isset($arguments['suffix']) ? $arguments['suffix'] : null;
 
         $all = false;
         
@@ -112,38 +121,24 @@ class ClearCacheTask extends AbstractTask
             $all = true;
         }
 
-        $configuration = $this->getEntityManager()->getConfiguration();
+        $em = $this->getConfiguration()->getAttribute('em');
+        $configuration = $em->getConfiguration();
 
         if ($query || $all) {
             $this->_doDelete(
-                'query',
-                $configuration->getQueryCacheImpl(),
-                $id,
-                $regex,
-                $prefix,
-                $suffix
+                'query', $configuration->getQueryCacheImpl(), $id, $regex, $prefix, $suffix
             );
         }
 
         if ($result || $all) {
             $this->_doDelete(
-                'result',
-                $configuration->getResultCacheImpl(),
-                $id,
-                $regex,
-                $prefix,
-                $suffix
+                'result', $configuration->getResultCacheImpl(), $id, $regex, $prefix, $suffix
             );
         }
 
         if ($metadata || $all) {
             $this->_doDelete(
-                'metadata',
-                $configuration->getMetadataCacheImpl(),
-                $id,
-                $regex,
-                $prefix,
-                $suffix
+                'metadata', $configuration->getMetadataCacheImpl(), $id, $regex, $prefix, $suffix
             );
         }
     }
@@ -153,54 +148,56 @@ class ClearCacheTask extends AbstractTask
         $printer = $this->getPrinter();
 
         if ( ! $cacheDriver) {
-            $printer->writeln('No driver has been configured for the ' . $type . ' cache.', 'ERROR');
-            return false;
+            throw new CliException('No driver has been configured for the ' . $type . ' cache.');
         }
 
         if ($id) {
-            $printer->writeln('Clearing ' . $type . ' cache entries that match the id "' . $id . '"', 'INFO');
+            $printer->writeln('Clearing ' . $type . ' cache entries that match the id "' . $id . '".', 'INFO');
 
             $deleted = $cacheDriver->delete($id);
+            
             if (is_array($deleted)) {
-                $this->_printDeleted($printer, $type, $deleted);
+                $this->_printDeleted($type, $deleted);
             } else if (is_bool($deleted) && $deleted) {
-                $this->_printDeleted($printer, $type, array($id));
+                $this->_printDeleted($type, array($id));
             }
         }
 
         if ($regex) {
-            $printer->writeln('Clearing ' . $type . ' cache entries that match the regular expression "' . $regex . '"', 'INFO');
+            $printer->writeln('Clearing ' . $type . ' cache entries that match the regular expression ".' . $regex . '"', 'INFO');
 
-            $this->_printDeleted($printer, $type, $cacheDriver->deleteByRegex('/' . $regex. '/'));
+            $this->_printDeleted($type, $cacheDriver->deleteByRegex('/' . $regex. '/'));
         }
 
         if ($prefix) {
-            $printer->writeln('Clearing ' . $type . ' cache entries that have the prefix "' . $prefix . '"', 'INFO');
+            $printer->writeln('Clearing ' . $type . ' cache entries that have the prefix "' . $prefix . '".', 'INFO');
 
-            $this->_printDeleted($printer, $type, $cacheDriver->deleteByPrefix($prefix));
+            $this->_printDeleted($type, $cacheDriver->deleteByPrefix($prefix));
         }
 
         if ($suffix) {
-            $printer->writeln('Clearing ' . $type . ' cache entries that have the suffix "' . $suffix . '"', 'INFO');
+            $printer->writeln('Clearing ' . $type . ' cache entries that have the suffix "' . $suffix . '".', 'INFO');
 
-            $this->_printDeleted($printer, $type, $cacheDriver->deleteBySuffix($suffix));
+            $this->_printDeleted($type, $cacheDriver->deleteBySuffix($suffix));
         }
 
         if ( ! $id && ! $regex && ! $prefix && ! $suffix) {
-            $printer->writeln('Clearing all ' . $type . ' cache entries', 'INFO');
+            $printer->writeln('Clearing all ' . $type . ' cache entries.', 'INFO');
 
-            $this->_printDeleted($printer, $type, $cacheDriver->deleteAll());
+            $this->_printDeleted($type, $cacheDriver->deleteAll());
         }
     }
 
-    private function _printDeleted($printer, $type, array $ids)
+    private function _printDeleted($type, array $ids)
     {
+        $printer = $this->getPrinter();
+    
         if ( ! empty($ids)) {
             foreach ($ids as $id) {
                 $printer->writeln(' - ' . $id);
             }
         } else {
-            $printer->writeln('No ' . $type . ' cache entries found', 'ERROR');
+            throw new CliException('No ' . $type . ' cache entries found.');
         }
         
         $printer->write(PHP_EOL);

lib/Doctrine/ORM/Tools/Cli/Tasks/ConvertMappingTask.php

@@ -21,7 +21,8 @@
  
 namespace Doctrine\ORM\Tools\Cli\Tasks;
 
-use Doctrine\Common\DoctrineException,
+use Doctrine\Common\Cli\Tasks\AbstractTask,
+    Doctrine\Common\Cli\CliException,
     Doctrine\Common\Cli\Option,
     Doctrine\Common\Cli\OptionGroup,
     Doctrine\ORM\Tools\Export\ClassMetadataExporter;
@@ -65,48 +66,65 @@ class ConvertMappingTask extends AbstractTask
      */    
     public function validate()
     {
-        $args = $this->getArguments();
-        $printer = $this->getPrinter();
+        $arguments = $this->getArguments();
+        
+        if (isset($arguments['from-database']) && $arguments['from-database']) {
+            $arguments['from'] = 'database';
             
-        if (array_key_exists('from-database', $args)) {
-            $args['from'][0] = 'database';
-            $this->setArguments($args);
+            $this->setArguments($arguments);
         }
 
-        if (!(isset($args['from']) && isset($args['to']) && isset($args['dest']))) {
-          $printer->writeln('You must include a value for all three options: --from, --to and --dest', 'ERROR');
-          return false;
+        if (!(isset($arguments['from']) && isset($arguments['to']) && isset($arguments['dest']))) {
+            throw new CliException(
+                'You must include a value for all three options: --from, --to and --dest.'
+            );
         }
-        if ($args['to'] != 'annotation' && isset($args['extend'])) {
-            $printer->writeln('You can only use the --extend argument when converting to annoations.', 'ERROR');
-            return false;
+        
+        if (strtolower($arguments['to']) != 'annotation' && isset($arguments['extend'])) {
+            throw new CliException(
+                'You can only use the --extend argument when converting to annotations.'
+            );
         }
-        if ($args['from'][0] == 'database') {
-            $em = $this->getEntityManager();
+        
+        if (strtolower($arguments['from']) == 'database') {
+            // Check if we have an active EntityManager
+            $em = $this->getConfiguration()->getAttribute('em');
+        
+            if ($em === null) {
+                throw new CliException(
+                    "Attribute 'em' of CLI Configuration is not defined or it is not a valid EntityManager."
+                );
+            }
+    
             $config = $em->getConfiguration();
-            $config->setMetadataDriverImpl(new \Doctrine\ORM\Mapping\Driver\DatabaseDriver($em->getConnection()->getSchemaManager()));
+            $config->setMetadataDriverImpl(
+                new \Doctrine\ORM\Mapping\Driver\DatabaseDriver(
+                    $em->getConnection()->getSchemaManager()
+                )
+            );
         }
+        
         return true;
     }
 
     public function run()
     {
-        $printer = $this->getPrinter();
-        $args = $this->getArguments();
-
+        $arguments = $this->getArguments();
         $cme = new ClassMetadataExporter();
+        $printer = $this->getPrinter();
         
         // Get exporter and configure it
-        $exporter = $cme->getExporter($args['to'], $args['dest']);
+        $exporter = $cme->getExporter($arguments['to'], $arguments['dest']);
 
-        if (isset($args['extend'])) {
-            $exporter->setClassToExtend($args['extend']);
+        if (isset($arguments['extend']) && $arguments['extend']) {
+            $exporter->setClassToExtend($arguments['extend']);
         }
-        if (isset($args['num-spaces'])) {
-            $exporter->setNumSpaces($args['num-spaces']);
+        
+        if (isset($arguments['num-spaces']) && $arguments['extend']) {
+            $exporter->setNumSpaces($arguments['num-spaces']);
         }
 
-        $from = (array) $args['from'];
+        $from = (array) $arguments['from'];
 
         if ($this->_isDoctrine1Schema($from)) {
             $printer->writeln('Converting Doctrine 1 schema to Doctrine 2 mapping files', 'INFO');
@@ -116,40 +134,38 @@ class ConvertMappingTask extends AbstractTask
         } else {
             foreach ($from as $source) {
                 $sourceArg = $source;
-
                 $type = $this->_determineSourceType($sourceArg);
+                
                 if ( ! $type) {
                     throw DoctrineException::invalidMappingSourceType($sourceArg);
                 }
+                
                 $source = $this->_getSourceByType($type, $sourceArg);
                 
                 $printer->writeln(
                     sprintf(
                         'Adding "%s" mapping source which contains the "%s" format', 
-                        $printer->format($sourceArg, 'KEYWORD'),
-                        $printer->format($type, 'KEYWORD')
+                        $printer->format($sourceArg, 'KEYWORD'), $printer->format($type, 'KEYWORD')
                     )
                 );
 
                 $cme->addMappingSource($source, $type);
             }
+            
             $metadatas = $cme->getMetadatasForMappingSources();
         }
 
         foreach ($metadatas as $metadata) {
             $printer->writeln(
-                sprintf(
-                    'Processing entity "%s"',
-                    $printer->format($metadata->name, 'KEYWORD')
-                )
+                sprintf('Processing entity "%s"', $printer->format($metadata->name, 'KEYWORD'))
             );
         }
 
         $printer->writeln(
             sprintf(
                 'Exporting "%s" mapping information to directory "%s"',
-                $printer->format($args['to'], 'KEYWORD'),
-                $printer->format($args['dest'], 'KEYWORD')
+                $printer->format($arguments['to'], 'KEYWORD'), 
+                $printer->format($arguments['dest'], 'KEYWORD')
             )
         );
 
@@ -167,9 +183,11 @@ class ConvertMappingTask extends AbstractTask
         }
         
         $files = glob(current($from) . '/*.yml');
+        
         if ($files) {
             $array = \sfYaml::load($files[0]);
             $first = current($array);
+            
             // We're dealing with a Doctrine 1 schema if you have
             // a columns index in the first model array
             return isset($first['columns']);
@@ -185,6 +203,7 @@ class ConvertMappingTask extends AbstractTask
         if (is_dir($source)) {
             // Find the files in the directory
             $files = glob($source . '/*.*');
+            
             if ( ! $files) {
                 throw new \InvalidArgumentException(
                     sprintf('No mapping files found in "%s"', $source)
@@ -201,6 +220,7 @@ class ConvertMappingTask extends AbstractTask
             // first file in the directory (yml, xml, etc)
             } else {
               $info = pathinfo($files[0]);
+              
               return $info['extension'];
             }
         // Nothing special for database
@@ -214,7 +234,9 @@ class ConvertMappingTask extends AbstractTask
         // If --from==database then the source is an instance of SchemaManager
         // for the current EntityMAnager
         if ($type == 'database') {
-            return $this->_em->getConnection()->getSchemaManager();
+            $em = $this->getConfiguration->getAttribute('em');
+            
+            return $em->getConnection()->getSchemaManager();
         } else {
             return $source;
         }

lib/Doctrine/ORM/Tools/Cli/Tasks/EnsureProductionSettingsTask.php

@@ -21,7 +21,8 @@
  
 namespace Doctrine\ORM\Tools\Cli\Tasks;
 
-use Doctrine\Common\Cache\AbstractDriver;
+use Doctrine\Common\Cli\Tasks\AbstractTask,
+    Doctrine\Common\Cli\CliException;
 
 /**
  * CLI Task to ensure that Doctrine is properly configured for a production environment.
@@ -30,6 +31,7 @@ use Doctrine\Common\Cache\AbstractDriver;
  * @link    www.doctrine-project.org
  * @since   2.0
  * @version $Revision$
+ * @author  Benjamin Eberlei <kontakt@beberlei.de>
  * @author  Guilherme Blanco <guilhermeblanco@hotmail.com>
  * @author  Jonathan Wage <jonwage@gmail.com>
  * @author  Roman Borschel <roman@code-factory.org>
@@ -51,17 +53,24 @@ class EnsureProductionSettingsTask extends AbstractTask
      */
     public function validate()
     {
+        // Check if we have an active EntityManager
+        $em = $this->getConfiguration()->getAttribute('em');
+        
+        if ($em === null) {
+            throw new CliException(
+                "Attribute 'em' of CLI Configuration is not defined or it is not a valid EntityManager."
+            );
+        }
+        
         return true;
     }
 
+    /**
+     * @inheritdoc
+     */
     public function run()
     {
-        $printer = $this->getPrinter();
-        
-        try {
-            $this->getEntityManager()->getConfiguration()->ensureProductionSettings();
-        } catch (\Doctrine\Common\DoctrineException $e) {
-            $printer->writeln($e->getMessage(), 'ERROR');
-        }
+        $em = $this->getConfiguration()->getAttribute('em');
+        $em->getConfiguration()->ensureProductionSettings();
     }
 }
\ No newline at end of file

lib/Doctrine/ORM/Tools/Cli/Tasks/GenerateProxiesTask.php

@@ -2,7 +2,8 @@
 
 namespace Doctrine\ORM\Tools\Cli\Tasks;
 
-use Doctrine\Common\DoctrineException,
+use Doctrine\Common\Cli\Tasks\AbstractTask,
+    Doctrine\Common\Cli\CliException,
     Doctrine\Common\Cli\Option,
     Doctrine\Common\Cli\OptionGroup;
 
@@ -24,6 +25,10 @@ class GenerateProxiesTask extends AbstractTask
      */
     public function buildDocumentation()
     {
+        $classDir = new OptionGroup(OptionGroup::CARDINALITY_1_1, array(
+            new Option('class-dir', '<PATH>', 'Specified directory where mapping classes are located.')
+        ));
+        
         $toDir = new OptionGroup(OptionGroup::CARDINALITY_0_1, array(
             new Option('to-dir', '<PATH>', 'Generates the classes in the specified directory.')
         ));
@@ -32,6 +37,7 @@ class GenerateProxiesTask extends AbstractTask
         $doc->setName('generate-proxies')
             ->setDescription('Generates proxy classes for entity classes.')
             ->getOptionGroup()
+                ->addOption($classDir)
                 ->addOption($toDir);
     }
     
@@ -40,18 +46,25 @@ class GenerateProxiesTask extends AbstractTask
      */
     public function validate()
     {
-        $args = $this->getArguments();
-        $printer = $this->getPrinter();
+        $arguments = $this->getArguments();
+        $em = $this->getConfiguration()->getAttribute('em');
+        
+        if ($em === null) {
+            throw new CliException(
+                "Attribute 'em' of CLI Configuration is not defined or it is not a valid EntityManager."
+            );
+        }
         
-        $metadataDriver = $this->getEntityManager()->getConfiguration()->getMetadataDriverImpl();
+        $metadataDriver = $em->getConfiguration()->getMetadataDriverImpl();
         
         if ($metadataDriver instanceof \Doctrine\ORM\Mapping\Driver\AnnotationDriver) {
-            if ( ! isset($args['class-dir'])) {
-                $printer->writeln("The supplied configuration uses the annotation metadata driver."
-                        . " The 'class-dir' argument is required for this driver.", 'ERROR');
-                return false;
-            } else {
+            if (isset($arguments['class-dir'])) {
                 $metadataDriver->setClassDirectory($args['class-dir']);
+            } else {
+                throw new CliException(
+                    'The supplied configuration uses the annotation metadata driver. ' .
+                    "The 'class-dir' argument is required for this driver."
+                );
             }
         }
         
@@ -59,30 +72,29 @@ class GenerateProxiesTask extends AbstractTask
     }
 
     /**
-     * Executes the task.
+     * @inheritdoc
      */
     public function run()
     {
-        $args = $this->getArguments();
+        $arguments = $this->getArguments();
+        $printer = $this->getPrinter();
         
-        $em = $this->getEntityManager();
+        $em = $this->getConfiguration->getAttribute('em');
         $cmf = $em->getMetadataFactory();
-        
         $classes = $cmf->getAllMetadata();
-
-        $printer = $this->getPrinter();
         $factory = $em->getProxyFactory();
         
         if (empty($classes)) {
             $printer->writeln('No classes to process.', 'INFO');
-            return;
-        }
-
-        $factory->generateProxyClasses($classes, isset($args['to-dir']) ? $args['to-dir'] : null);
+        } else {
+            $factory->generateProxyClasses(
+                $classes, isset($arguments['to-dir']) ? $arguments['to-dir'] : null
+            );
         
             $printer->writeln(
-            'Proxy classes generated to: ' . 
-            (isset($args['to-dir']) ? $args['to-dir'] : $em->getConfiguration()->getProxyDir())
+                'Proxy classes generated to: ' . (isset($arguments['to-dir']) 
+                    ? $arguments['to-dir'] : $em->getConfiguration()->getProxyDir())
             );
         }
+    }
 }
\ No newline at end of file

lib/Doctrine/ORM/Tools/Cli/Tasks/RunDqlTask.php

@@ -21,7 +21,8 @@
 
 namespace Doctrine\ORM\Tools\Cli\Tasks;
 
-use Doctrine\Common\DoctrineException,
+use Doctrine\Common\Cli\Tasks\AbstractTask,
+    Doctrine\Common\Cli\CliException,
     Doctrine\Common\Util\Debug,
     Doctrine\Common\Cli\Option,
     Doctrine\Common\Cli\OptionGroup;
@@ -65,12 +66,17 @@ class RunDqlTask extends AbstractTask
      */
     public function validate()
     {
-        $args = $this->getArguments();
-        $printer = $this->getPrinter();
+        $arguments = $this->getArguments();
+        $em = $this->getConfiguration()->getAttribute('em');
         
-        if ( ! isset($args['dql'])) {
-            $printer->writeln("Argument --dql must be defined.", 'ERROR');
-            return false;
+        if ($em === null) {
+            throw new CliException(
+                "Attribute 'em' of CLI Configuration is not defined or it is not a valid EntityManager."
+            );
+        }
+        
+        if ( ! isset($arguments['dql'])) {
+            throw new CliException('Argument --dql must be defined.');
         }
         
         return true;
@@ -78,21 +84,16 @@ class RunDqlTask extends AbstractTask
     
     
     /**
-     * Executes the task.
+     * @inheritdoc
      */
     public function run()
     {
-        $args = $this->getArguments();
-        
-        try {
-            $query = $this->getEntityManager()->createQuery($args['dql']);
+        $arguments = $this->getArguments();
+        $em = $this->getConfiguration()->getAttribute('em');
+        $query = $em->createQuery($arguments['dql']);
         $resultSet = $query->getResult();
-        
-            $maxDepth = isset($args['depth']) ? $args['depth'] : 7;
+        $maxDepth = isset($arguments['depth']) ? $arguments['depth'] : 7;
         
         Debug::dump($resultSet, $maxDepth);
-        } catch (\Exception $ex) {
-            throw new DoctrineException($ex);
-        }
     }
 }
\ No newline at end of file

lib/Doctrine/ORM/Tools/Cli/Tasks/SchemaToolTask.php

@@ -2,7 +2,8 @@
 
 namespace Doctrine\ORM\Tools\Cli\Tasks;
 
-use Doctrine\Common\DoctrineException,
+use Doctrine\Common\Cli\Tasks\AbstractTask,
+    Doctrine\Common\Cli\CliException,
     Doctrine\Common\Cli\Option,
     Doctrine\Common\Cli\OptionGroup,
     Doctrine\ORM\Tools\SchemaTool,
@@ -100,44 +101,56 @@ class SchemaToolTask extends AbstractTask
      */
     public function validate()
     {
-        $args = $this->getArguments();
-        $printer = $this->getPrinter();
+        $arguments = $this->getArguments();
+        $em = $this->getConfiguration()->getAttribute('em');
+        
+        if ($em === null) {
+            throw new CliException(
+                "Attribute 'em' of CLI Configuration is not defined or it is not a valid EntityManager."
+            );
+        }
         
-        if (array_key_exists('re-create', $args)) {
-            $args['drop'] = true;
-            $args['create'] = true;
-            $this->setArguments($args);
+        if (isset($arguments['re-create'])) {
+            $arguments['drop'] = true;
+            $arguments['create'] = true;
+            
+            unset($arguments['re-create']);
+            
+            $this->setArguments($arguments);
         }
         
-        $isCreate = isset($args['create']);
-        $isDrop = isset($args['drop']);
-        $isUpdate = isset($args['update']);
-        $isCompleteUpdate = isset($args['complete-update']);
+        $isCreate = isset($arguments['create']) && $arguments['create'];
+        $isDrop = isset($arguments['drop']) && $arguments['drop'];
+        $isUpdate = isset($arguments['update']) && $arguments['update'];
+        $isCompleteUpdate = isset($arguments['complete-update']) && $arguments['complete-update'];
         
         if ($isUpdate && ($isCreate || $isDrop || $isCompleteUpdate)) {
-            $printer->writeln("You can't use --update with --create, --drop or --complete-update", 'ERROR');
-            return false;
+            throw new CliException(
+                'You cannot use --update with --create, --drop or --complete-update.'
+            );
         }
 
         if ($isCompleteUpdate && ($isCreate || $isDrop || $isUpdate)) {
-            $printer->writeln("You can't use --update with --create, --drop or --update", 'ERROR');
-            return false;
+            throw new CliException('You cannot use --update with --create, --drop or --update.');
         }
 
         if ( ! ($isCreate || $isDrop || $isUpdate || $isCompleteUpdate)) {
-            $printer->writeln('You must specify at a minimum one of the options (--create, --drop, --update, --re-create, --complete-update).', 'ERROR');
-            return false;
+            throw new CliException(
+                'You must specify at a minimum one of the options ' .
+                '(--create, --drop, --update, --re-create or --complete-update).'
+            );
         }
         
         $metadataDriver = $this->getEntityManager()->getConfiguration()->getMetadataDriverImpl();
         
         if ($metadataDriver instanceof \Doctrine\ORM\Mapping\Driver\AnnotationDriver) {
-            if ( ! isset($args['class-dir'])) {
-                $printer->writeln("The supplied configuration uses the annotation metadata driver."
-                        . " The 'class-dir' argument is required for this driver.", 'ERROR');
-                return false;
-            } else {
+            if (isset($args['class-dir'])) {
                 $metadataDriver->setClassDirectory($args['class-dir']);
+            } else {
+                throw new CliException(
+                    'The supplied configuration uses the annotation metadata driver. ' . 
+                    "The 'class-dir' argument is required for this driver."
+                );
             }
         }
         
@@ -145,80 +158,66 @@ class SchemaToolTask extends AbstractTask
     }
 
     /**
-     * Executes the task.
+     * @inheritdoc
      */
     public function run()
     {
-        $args = $this->getArguments();
+        $arguments = $this->getArguments();
+        $printer = $this->getPrinter();
 
-        $isCreate = isset($args['create']);
-        $isDrop = isset($args['drop']);
-        $isUpdate = isset($args['update']);
-        $isCompleteUpdate = isset($args['complete-update']);
+        $isCreate = isset($arguments['create']) && $arguments['create'];
+        $isDrop = isset($arguments['drop']) && $arguments['drop'];
+        $isUpdate = isset($arguments['update']) && $arguments['update'];
+        $isCompleteUpdate = isset($arguments['complete-update']) && $arguments['complete-update'];
         
-        $em = $this->getEntityManager();
-        $cmf = $em->getMetadataFactory();
+        $em = $this->getConfiguration()->getAttribute('em');
         
+        $cmf = $em->getMetadataFactory();
         $classes = $cmf->getAllMetadata();
         
-        $printer = $this->getPrinter();
-        
         if (empty($classes)) {
             $printer->writeln('No classes to process.', 'INFO');
+            
             return;
         }
 
         $tool = new SchemaTool($em);
         
         if ($isDrop) {
-            if (isset($args['dump-sql'])) {
+            if (isset($arguments['dump-sql'])) {
                 foreach ($tool->getDropSchemaSql($classes) as $sql) {
                     $printer->writeln($sql);
                 }
             } else {
                 $printer->writeln('Dropping database schema...', 'INFO');
-                
-                try {
                 $tool->dropSchema($classes);
                 $printer->writeln('Database schema dropped successfully.', 'INFO');
-                } catch (\Exception $ex) {
-                    throw new DoctrineException($ex);
-                }
             }
         }
 
         if ($isCreate) {
-            if (isset($args['dump-sql'])) {
+            if (isset($arguments['dump-sql'])) {
                 foreach ($tool->getCreateSchemaSql($classes) as $sql) {
                     $printer->writeln($sql);
                 }
             } else {
                 $printer->writeln('Creating database schema...', 'INFO');
-                
-                try {
                 $tool->createSchema($classes);
                 $printer->writeln('Database schema created successfully.', 'INFO');
-                } catch (\Exception $ex) {
-                    throw new DoctrineException($ex);
-                }
             }
         }
 
         if ($isUpdate || $isCompleteUpdate) {
-            $saveMode = $isUpdate?true:false;
-            if (isset($args['dump-sql'])) {
+            $saveMode = $isUpdate ? true : false;
+            
+            if (isset($arguments['dump-sql'])) {
                 foreach ($tool->getUpdateSchemaSql($classes, $saveMode) as $sql) {
                     $printer->writeln($sql);
                 }
             } else {
                 $printer->writeln('Updating database schema...', 'INFO');
-                
-                try {
                 $tool->updateSchema($classes, $saveMode);
                 $printer->writeln('Database schema updated successfully.', 'INFO');
-                } catch (\Exception $ex) {
-                    throw new DoctrineException($ex);
-                }
             }
         }
     }

lib/Doctrine/ORM/Tools/Cli/Tasks/VersionTask.php

@@ -21,6 +21,8 @@
  
 namespace Doctrine\ORM\Tools\Cli\Tasks;
 
+use Doctrine\Common\Cli\Tasks\AbstractTask;
+
 /**
  * CLI Task to display the doctrine version
  *
@@ -28,6 +30,7 @@ namespace Doctrine\ORM\Tools\Cli\Tasks;
  * @link    www.doctrine-project.org
  * @since   2.0
  * @version $Revision$
+ * @author  Benjamin Eberlei <kontakt@beberlei.de>
  * @author  Guilherme Blanco <guilhermeblanco@hotmail.com>
  * @author  Jonathan Wage <jonwage@gmail.com>
  * @author  Roman Borschel <roman@code-factory.org>
@@ -47,14 +50,6 @@ class VersionTask extends AbstractTask
             ->setDescription('Displays the current installed Doctrine version.');
     }
 
-    /**
-     * @inheritdoc
-     */
-    public function validate()
-    {
-        return true;
-    }
-
     /**
      * Displays the current version of Doctrine
      *

tools/sandbox/cli-config.php

@@ -32,9 +32,7 @@ $connectionOptions = array(
     'path' => 'database.sqlite'
 );
 
-// These are required named variables (names can't change!)
 $em = \Doctrine\ORM\EntityManager::create($connectionOptions, $config);
 
-$globalArguments = array(
-    'class-dir' => './Entities'
-);
+$configuration = new \Doctrine\Common\Cli\Configuration();
+$configuration->setAttribute('em', $em);
\ No newline at end of file
\ No newline at end of file

tools/sandbox/doctrine.php

 <?php
 
-require __DIR__ . '/../../lib/Doctrine/Common/ClassLoader.php';
+require_once __DIR__ . '/../../lib/Doctrine/Common/ClassLoader.php';
 
-$classLoader = new \Doctrine\Common\ClassLoader('Doctrine', __DIR__ . '/../../lib');
+$classLoader = new \Doctrine\Common\ClassLoader();
+$classLoader->setIncludePath(__DIR__ . '/../../lib');
 $classLoader->register();
 
-$cli = new \Doctrine\ORM\Tools\Cli\CliController();
+// Variable $configuration is defined inside cli-config.php
+require_once __DIR__ . '/cli-config.php';
+
+$cli = new \Doctrine\Common\Cli\CliController($configuration);
 $cli->run($_SERVER['argv']);
\ No newline at end of file