53 lines
1.8 KiB
PHP
53 lines
1.8 KiB
PHP
<?php
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namespace MailPoetVendor\Symfony\Component\Finder;
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if (!defined('ABSPATH')) exit;
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class Gitignore
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{
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public static function toRegex(string $gitignoreFileContent) : string
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{
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$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 $i => $line) {
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$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) {
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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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