Overtrue\PHPLint\Command\LintCommand::executeLint PHP Метод

    protected function executeLint($linter, $output, $fileCount, $cache = true)
    {
        $maxColumns = floor($this->getScreenColumns() / 2);
        $verbosity = $output->getVerbosity();
        $linter->setProcessCallback(function ($status, $filename) use($output, $verbosity, $fileCount, $maxColumns) {
            static $i = 0;
            if ($i && $i % $maxColumns === 0) {
                $percent = floor($i / $fileCount * 100);
                $output->writeln(str_pad(" {$i} / {$fileCount} ({$percent}%)", 18, ' ', STR_PAD_LEFT));
            }
            ++$i;
            if ($verbosity >= OutputInterface::VERBOSITY_VERBOSE) {
                $output->writeln('Linting: ' . $filename . "\t" . ($status === 'ok' ? '<info>OK</info>' : '<error>Error</error>'));
            } else {
                $output->write($status === 'ok' ? '<info>.</info>' : '<error>E</error>');
            }
        });
        return $linter->lint([], $cache);
    }