82 lines
3.1 KiB
PHP
82 lines
3.1 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 Psr\Log\LoggerInterface;
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use Symfony\Component\AssetMapper\AssetMapperInterface;
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use Symfony\Component\AssetMapper\Exception\RuntimeException;
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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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* Resolves url() paths in CSS files.
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*
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* Originally sourced from https://github.com/rails/propshaft/blob/main/lib/propshaft/compilers/css_asset_urls.rb
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*/
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final class CssAssetUrlCompiler implements AssetCompilerInterface
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{
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// https://regex101.com/r/BOJ3vG/1
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public const ASSET_URL_PATTERN = '/url\(\s*["\']?(?!(?:\/|\#|%23|data|http|\/\/))([^"\'\s?#)]+)([#?][^"\')]+)?\s*["\']?\)/';
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public function __construct(
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private readonly string $missingImportMode = self::MISSING_IMPORT_WARN,
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private readonly ?LoggerInterface $logger = null,
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) {
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}
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public function compile(string $content, MappedAsset $asset, AssetMapperInterface $assetMapper): string
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{
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return preg_replace_callback(self::ASSET_URL_PATTERN, function ($matches) use ($asset, $assetMapper) {
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try {
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$resolvedSourcePath = Path::join(\dirname($asset->sourcePath), $matches[1]);
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} catch (RuntimeException $e) {
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$this->handleMissingImport(sprintf('Error processing import in "%s": ', $asset->sourcePath).$e->getMessage(), $e);
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return $matches[0];
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}
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$dependentAsset = $assetMapper->getAssetFromSourcePath($resolvedSourcePath);
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if (null === $dependentAsset) {
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$message = sprintf('Unable to find asset "%s" referenced in "%s". The file "%s" ', $matches[1], $asset->sourcePath, $resolvedSourcePath);
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if (is_file($resolvedSourcePath)) {
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$message .= 'exists, but it is not in a mapped asset path. Add it to the "paths" config.';
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} else {
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$message .= 'does not exist.';
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}
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$this->handleMissingImport($message);
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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 'url("'.$relativePath.'")';
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}, $content);
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}
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public function supports(MappedAsset $asset): bool
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{
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return 'css' === $asset->publicExtension;
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}
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private function handleMissingImport(string $message, ?\Throwable $e = null): void
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{
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match ($this->missingImportMode) {
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AssetCompilerInterface::MISSING_IMPORT_IGNORE => null,
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AssetCompilerInterface::MISSING_IMPORT_WARN => $this->logger?->warning($message),
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AssetCompilerInterface::MISSING_IMPORT_STRICT => throw new RuntimeException($message, 0, $e),
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};
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}
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}
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