class ArchivableFilesFinder

class ArchivableFilesFinder extends FilterIterator {
    
    /**
     * @var Finder
     */
    protected $finder;
    
    /**
     * Initializes the internal Symfony Finder with appropriate filters
     *
     * @param string $sources Path to source files to be archived
     * @param string[] $excludes Composer's own exclude rules from composer.json
     * @param bool $ignoreFilters Ignore filters when looking for files
     */
    public function __construct(string $sources, array $excludes, bool $ignoreFilters = false) {
        $fs = new Filesystem();
        $sourcesRealPath = realpath($sources);
        if ($sourcesRealPath === false) {
            throw new \RuntimeException('Could not realpath() the source directory "' . $sources . '"');
        }
        $sources = $fs->normalizePath($sourcesRealPath);
        if ($ignoreFilters) {
            $filters = [];
        }
        else {
            $filters = [
                new GitExcludeFilter($sources),
                new ComposerExcludeFilter($sources, $excludes),
            ];
        }
        $this->finder = new Finder();
        $filter = static function (\SplFileInfo $file) use ($sources, $filters, $fs) : bool {
            $realpath = $file->getRealPath();
            if ($realpath === false) {
                return false;
            }
            if ($file->isLink() && strpos($realpath, $sources) !== 0) {
                return false;
            }
            $relativePath = Preg::replace('#^' . preg_quote($sources, '#') . '#', '', $fs->normalizePath($realpath));
            $exclude = false;
            foreach ($filters as $filter) {
                $exclude = $filter->filter($relativePath, $exclude);
            }
            return !$exclude;
        };
        $this->finder
            ->in($sources)
            ->filter($filter)
            ->ignoreVCS(true)
            ->ignoreDotFiles(false)
            ->sortByName();
        parent::__construct($this->finder
            ->getIterator());
    }
    public function accept() : bool {
        
        /** @var SplFileInfo $current */
        $current = $this->getInnerIterator()
            ->current();
        if (!$current->isDir()) {
            return true;
        }
        $iterator = new FilesystemIterator((string) $current, FilesystemIterator::SKIP_DOTS);
        return !$iterator->valid();
    }

}