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