Method getSubfolders

src/FileRise/Domain/FolderModel.php:1932–1962

* Recursively scans a directory for subfolders (relative paths). */

(string $dir, string $relative = '')

     * Recursively scans a directory for subfolders (relative paths).
     */
    private static function getSubfolders(string $dir, string $relative = ''): array
    {
        $folders = [];
        $items   = @scandir($dir) ?: [];
        $SKIP    = FS::SKIP();
        foreach ($items as $item) {
            if ($item === '.' || $item === '..') {
                continue;
            }
            if ($item === '' || $item[0] === '.') {
                continue;
            }
            if (FS::shouldIgnoreEntry($item, $relative)) {
                continue;
            }
            if (!preg_match(REGEX_FOLDER_NAME, $item)) {
                continue;
            }
            if (in_array(strtolower($item), $SKIP, true)) {
                continue;
            }

            $path = $dir . DIRECTORY_SEPARATOR . $item;
            if (is_dir($path)) {
                $folderPath = ($relative ? $relative . '/' : '') . $item;
                $folders[]  = $folderPath;
                $folders    = array_merge($folders, self::getSubfolders($path, $folderPath));
            }
        }
        return $folders;
    }

    /**
     * Retrieves the list of folders (including "root") along with file count metadata.