Contao\Theme::addTemplatesToArchive PHP Method

    protected function addTemplatesToArchive(ZipWriter $objArchive, $strFolder)
    {
        // Strip the templates folder name
        $strFolder = preg_replace('@^templates/@', '', $strFolder);
        // Re-add the templates folder name
        if ($strFolder == '') {
            $strFolder = 'templates';
        } else {
            $strFolder = 'templates/' . $strFolder;
        }
        if (\Validator::isInsecurePath($strFolder)) {
            throw new \RuntimeException('Insecure path ' . $strFolder);
        }
        // Return if the folder does not exist
        if (!is_dir(TL_ROOT . '/' . $strFolder)) {
            return;
        }
        $arrAllowed = \StringUtil::trimsplit(',', strtolower(\Config::get('templateFiles')));
        array_push($arrAllowed, 'sql');
        // see #7048
        // Add all template files to the archive
        foreach (scan(TL_ROOT . '/' . $strFolder) as $strFile) {
            if (preg_match('/\\.(' . implode('|', $arrAllowed) . ')$/', $strFile) && strncmp($strFile, 'be_', 3) !== 0 && strncmp($strFile, 'nl_', 3) !== 0) {
                $objArchive->addFile($strFolder . '/' . $strFile);
            }
        }
    }