TQ\Svn\Repository\Repository::findRepositoryRoot PHP Method

    public static function findRepositoryRoot(Binary $svn, $path)
    {
        $hasSvnDir = function ($path) {
            $svnDir = $path . '/' . '.svn';
            return file_exists($svnDir) && is_dir($svnDir);
        };
        $pathWithSvnDir = FileSystem::bubble($path, $hasSvnDir);
        $root = $pathWithSvnDir;
        $parentDir = dirname($pathWithSvnDir);
        while ($hasSvnDir($parentDir) && strlen($root) > 1) {
            $root = dirname($root);
            $parentDir = dirname($parentDir);
        }
        return $root;
    }