Common.php

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<?php
define('PEAR_TASK_ERROR_NOATTRIBS', 1);
define('PEAR_TASK_ERROR_MISSING_ATTRIB', 2);
define('PEAR_TASK_ERROR_WRONG_ATTRIB_VALUE', 3);
define('PEAR_TASK_ERROR_INVALID', 4);
define('PEAR_TASK_PACKAGE', 1);
define('PEAR_TASK_INSTALL', 2);
define('PEAR_TASK_PACKAGEANDINSTALL', 3);
class PEAR_Task_Common
{
    protected $type = 'simple';
    public $phase = PEAR_TASK_INSTALL;
    protected $config;
    protected $registry;
    public $logger;
    protected $installphase;
    function __construct(&$config, &$logger, $phase)
    {
        $this->config = &$config;
        $this->registry = &$config->getRegistry();
        $this->logger = &$logger;
        $this->installphase = $phase;
        if ($this->type == 'multiple') {
            $GLOBALS['_PEAR_TASK_POSTINSTANCES'][get_class($this)][] = &$this;
        }
    }

    public static function validateXml($pkg, $xml, $config, $fileXml)
    {
    }

    public function init($xml, $fileAttributes, $lastVersion)
    {
    }

    public function startSession($pkg, $contents, $dest)
    {
    }

    public static function run($tasks)
    {
    }

    public static function hasPostinstallTasks()
    {
        return isset($GLOBALS['_PEAR_TASK_POSTINSTANCES']);
    }

    public static function runPostinstallTasks()
    {
        foreach ($GLOBALS['_PEAR_TASK_POSTINSTANCES'] as $class => $tasks) {
            $err = call_user_func(
                array($class, 'run'),
                $GLOBALS['_PEAR_TASK_POSTINSTANCES'][$class]
            );
            if ($err) {
                return PEAR_Task_Common::throwError($err);
            }
        }
        unset($GLOBALS['_PEAR_TASK_POSTINSTANCES']);
    }

    public function isScript()
    {
            return $this->type == 'script';
    }
 
    public function throwError($msg, $code = -1)
    {
        include_once 'PEAR.php';
 
        return PEAR::raiseError($msg, $code);
    }
}