Symfony version(s) affected

any / latest

Description

in phpstan/phpstan-src@da56f5b#diff-d2a02971e55cfbdc9f9994aea2bebd84108382ab5628b662d1f35ec2a70fbe3fR206 you can see the individual FS calls done by Symfony Finder

currently, it opens the initial directory twice, which costs some extra CPU time

How to reproduce

see phpstan/phpstan-src@f3b86c3#diff-87cf61100cce8074792c993360180be397a8325612856338be61c41eeb60389dR83

basically simple and typical usage:

<?php declare(strict_types = 1);

use Symfony\Component\Finder\Finder;

$path = __DIR__ . '/some_dir';
$fileExtensions = ['php', 'phpt'];

$finder = (new Finder())
    ->in($path)
    ->followLinks()
    ->files()
    ->name('*.{' . implode(',', $fileExtensions) . '}');

Possible Solution

No response

Additional Context

IO is especially slow on Windows