src/Composer/Util/Filesystem.php
public function isDirEmpty($dir)
    {
        $finder = Finder::create()
            ->ignoreVCS(false)
            ->ignoreDotFiles(false)
            ->depth(0)
            ->in($dir);

        return count($finder) === 0;
    }
public function isDirEmpty($dir)
    {
        $finder = Finder::create()
            ->ignoreVCS(false)
            ->ignoreDotFiles(false)
            ->depth(0)
            ->in($dir);

        return count($finder) === 0;
    }
Checks if a directory is empty

@param  string $dir
@return bool