/**
* Set application root absolute path
*
* @param string $appRoot
* @throws Mage_Core_Exception
*/
public static function setRoot($appRoot = '')
{
if (self::$_appRoot) {
return;
}
if ('' === $appRoot) {
// automagically find application root by dirname of Mage.php
$appRoot = dirname(__FILE__);
}
$appRoot = realpath($appRoot);
if (is_dir($appRoot) and is_readable($appRoot)) {
self::$_appRoot = $appRoot;
} else {
self::throwException($appRoot . ' is not a directory or not readable by this user');
}
}
/**
* Retrieve application root absolute path
*
* @return string
* @throws Magento_Exception
*/
public static function getRoot()
{
if (!self::$_appRoot) {
$appRootDir = __DIR__;
if (!is_readable($appRootDir)) {
throw new Magento_Exception("Application root directory '{$appRootDir}' is not readable.");
}
self::$_appRoot = $appRootDir;
}
return self::$_appRoot;
}
