<?php
/*=====================================================================*\
|| ###################################################################
|| # ViewSVN [#]version[#]
|| # Copyright Š2002-[#]year[#] Iris Studios, Inc.
|| #
|| # This program is free software; you can redistribute it and/or modify
|| # it under the terms of the GNU General Public License as published by
|| # the Free Software Foundation; version [#]gpl[#] of the License.
|| #
|| # This program is distributed in the hope that it will be useful, but
|| # WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
|| # or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
|| # more details.
|| #
|| # You should have received a copy of the GNU General Public License along
|| # with this program; if not, write to the Free Software Foundation, Inc.,
|| # 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
|| ###################################################################
\*=====================================================================*/

/**
* Class that interacts with the command line system
*
* @pacakge	ViewSVN
*/

/**
* This class is the Xquery interface. It is responsible for doing the
* actual interaction with the command line.
*
* @package	ViewSVN
* @version	$Id$
*/
class Shell
{
	/**
	* Controller
	* @var	object
	* @access	private
	*/
	var $controller = null;
	
	// ###################################################################
	/**
	* Constructor
	*
	* @access	public
	*
	* @param	object	Controller
	*/
	function Shell(&$controller)
	{
		$this->controller =& $controller;
	}
	
	// ###################################################################
	/**
	* Wrapper for escapeshellarg()
	*
	* @access	public
	*
	* @param	string	The argument
	*
	* @return	string	Cleaned argument
	*/
	function arg($argument)
	{
		return escapeshellarg($argument);
	}
	
	// ###################################################################
	/**
	* Wrapper for escapeshellcmd
	*
	* @access	public
	*
	* @param	string	Command
	*
	* @return	string	Cleaned command
	*/
	function cmd($command)
	{
		return escapeshellcmd($command);
	}
	
	// ###################################################################
	/**
	* Executes a shell command and returns all the output
	* as an array
	*
	* @access	public
	*
	* @param	string	UNIX command
	*
	* @return	array	Output
	*/
	function exec($command)
	{
		$start = microtime();
		
		exec($command, $output);
		
		$this->controller->registry->debug("exec(" . $this->controller->registry->funct->fetch_microtime_diff($start) . "): $command");
		
		return $output;
	}
}

/*=====================================================================*\
|| ###################################################################
|| # $HeadURL$
|| # $Id$
|| ###################################################################
\*=====================================================================*/
?>