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Current File : //home/silvzytp/dsr_code/vendor/symfony/finder/Gitignore.php |
<?php /* * This file is part of the Symfony package. * * (c) Fabien Potencier <fabien@symfony.com> * * For the full copyright and license information, please view the LICENSE * file that was distributed with this source code. */ namespace Symfony\Component\Finder; /** * Gitignore matches against text. * * @author Michael Voříšek <vorismi3@fel.cvut.cz> * @author Ahmed Abdou <mail@ahmd.io> */ class Gitignore { /** * Returns a regexp which is the equivalent of the gitignore pattern. * * Format specification: https://git-scm.com/docs/gitignore#_pattern_format */ public static function toRegex(string $gitignoreFileContent): string { return self::buildRegex($gitignoreFileContent, false); } public static function toRegexMatchingNegatedPatterns(string $gitignoreFileContent): string { return self::buildRegex($gitignoreFileContent, true); } private static function buildRegex(string $gitignoreFileContent, bool $inverted): string { $gitignoreFileContent = preg_replace('~(?<!\\\\)#[^\n\r]*~', '', $gitignoreFileContent); $gitignoreLines = preg_split('~\r\n?|\n~', $gitignoreFileContent); $res = self::lineToRegex(''); foreach ($gitignoreLines as $line) { $line = preg_replace('~(?<!\\\\)[ \t]+$~', '', $line); if (str_starts_with($line, '!')) { $line = substr($line, 1); $isNegative = true; } else { $isNegative = false; } if ('' !== $line) { if ($isNegative xor $inverted) { $res = '(?!'.self::lineToRegex($line).'$)'.$res; } else { $res = '(?:'.$res.'|'.self::lineToRegex($line).')'; } } } return '~^(?:'.$res.')~s'; } private static function lineToRegex(string $gitignoreLine): string { if ('' === $gitignoreLine) { return '$f'; // always false } $slashPos = strpos($gitignoreLine, '/'); if (false !== $slashPos && \strlen($gitignoreLine) - 1 !== $slashPos) { if (0 === $slashPos) { $gitignoreLine = substr($gitignoreLine, 1); } $isAbsolute = true; } else { $isAbsolute = false; } $regex = preg_quote(str_replace('\\', '', $gitignoreLine), '~'); $regex = preg_replace_callback('~\\\\\[((?:\\\\!)?)([^\[\]]*)\\\\\]~', function (array $matches): string { return '['.('' !== $matches[1] ? '^' : '').str_replace('\\-', '-', $matches[2]).']'; }, $regex); $regex = preg_replace('~(?:(?:\\\\\*){2,}(/?))+~', '(?:(?:(?!//).(?<!//))+$1)?', $regex); $regex = preg_replace('~\\\\\*~', '[^/]*', $regex); $regex = preg_replace('~\\\\\?~', '[^/]', $regex); return ($isAbsolute ? '' : '(?:[^/]+/)*') .$regex .(!str_ends_with($gitignoreLine, '/') ? '(?:$|/)' : ''); } }