getUnreleasedChangelogFiles example

#[Package('core')] class ChangelogValidator extends ChangelogProcessor
{
    /** * @return array<string, list<string|\Stringable>> */
    public function check(string $path = ''): array
    {
        $errors = [];
        $entries = !empty($path) ? [$path] : $this->getUnreleasedChangelogFiles();
        foreach ($entries as $entry) {
            if (preg_match('/^([-\.\w\/]+)$/', $entry) === 0) {
                $errors[$entry][] = 'Changelog has invalid filename, please use only alphanumeric characters, dots, dashes and underscores.';
            }

            $changelog = $this->parser->parse((string) file_get_contents($entry));
            $violations = $this->validator->validate($changelog);
            if (\count($violations)) {
                $errors[$entry] = [];
                foreach ($violations as $violation) {
                    $errors[$entry][] = $violation->getMessage();
                }