50 lines
1.7 KiB
PHP
50 lines
1.7 KiB
PHP
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<?php
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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 Symfony\Component\AssetMapper\Compiler;
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use Symfony\Component\AssetMapper\AssetMapperInterface;
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use Symfony\Component\AssetMapper\MappedAsset;
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use Symfony\Component\Filesystem\Path;
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/**
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* Rewrites already-existing source map URLs to their final digested path.
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*
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* Originally sourced from https://github.com/rails/propshaft/blob/main/lib/propshaft/compilers/source_mapping_urls.rb
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*/
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final class SourceMappingUrlsCompiler implements AssetCompilerInterface
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{
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private const SOURCE_MAPPING_PATTERN = '/^(\/\/|\/\*)# sourceMappingURL=(.+\.map)/m';
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public function supports(MappedAsset $asset): bool
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{
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return \in_array($asset->publicExtension, ['css', 'js'], true);
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}
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public function compile(string $content, MappedAsset $asset, AssetMapperInterface $assetMapper): string
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{
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return preg_replace_callback(self::SOURCE_MAPPING_PATTERN, function ($matches) use ($asset, $assetMapper) {
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$resolvedPath = Path::join(\dirname($asset->sourcePath), $matches[2]);
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$dependentAsset = $assetMapper->getAssetFromSourcePath($resolvedPath);
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if (!$dependentAsset) {
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// return original, unchanged path
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return $matches[0];
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}
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$asset->addDependency($dependentAsset);
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$relativePath = Path::makeRelative($dependentAsset->publicPath, \dirname($asset->publicPathWithoutDigest));
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return $matches[1].'# sourceMappingURL='.$relativePath;
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}, $content);
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}
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}
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