N98\Util\Console\Helper\MagentoHelper::_search PHP Method

    protected function _search($searchFolder)
    {
        if (OutputInterface::VERBOSITY_DEBUG <= $this->output->getVerbosity()) {
            $this->output->writeln('<debug>Search for Magento in folder <info>' . $searchFolder . '</info></debug>');
        }
        if (!is_dir($searchFolder . '/app')) {
            return false;
        }
        $finder = Finder::create();
        $finder->ignoreUnreadableDirs(true)->depth(0)->followLinks()->name('Mage.php')->name('bootstrap.php')->name('autoload.php')->in($searchFolder . '/app');
        if ($finder->count() > 0) {
            $files = iterator_to_array($finder, false);
            /* @var $file \SplFileInfo */
            $hasMageFile = false;
            foreach ($files as $file) {
                if ($file->getFilename() == 'Mage.php') {
                    $hasMageFile = true;
                }
            }
            $this->_magentoRootFolder = $searchFolder;
            // Magento 2 does not have a god class and thus if this file is not there it is version 2
            if ($hasMageFile == false) {
                $this->_magentoMajorVersion = Application::MAGENTO_MAJOR_VERSION_2;
                return true;
                // the rest of this does not matter since we are simply exiting with a notice
            }
            if (is_callable(array('\\Mage', 'getEdition'))) {
                $this->_magentoEnterprise = \Mage::getEdition() == 'Enterprise';
            } else {
                $this->_magentoEnterprise = is_dir($this->_magentoRootFolder . '/app/code/core/Enterprise');
            }
            if (OutputInterface::VERBOSITY_DEBUG <= $this->output->getVerbosity()) {
                $this->output->writeln('<debug>Found Magento in folder <info>' . $this->_magentoRootFolder . '</info></debug>');
            }
            return true;
        }
        return false;
    }