forked from webpack-contrib/worker-loader
/
supportWebpack5.js
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/
supportWebpack5.js
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import {
workerGenerator,
sourceMappingURLRegex,
sourceURLWebpackRegex,
} from './utils';
export default function runAsChild(
loaderContext,
workerContext,
options,
callback
) {
workerContext.compiler.runAsChild((error, entries, compilation) => {
if (error) {
return callback(error);
}
if (entries[0]) {
const [workerFilename] = [...entries[0].files];
const cache = workerContext.compiler.getCache('worker-loader');
const cacheIdent = workerFilename;
const cacheETag = cache.getLazyHashedEtag(
compilation.assets[workerFilename]
);
return cache.get(cacheIdent, cacheETag, (getCacheError, content) => {
if (getCacheError) {
return callback(getCacheError);
}
if (options.inline === 'no-fallback') {
// eslint-disable-next-line no-underscore-dangle, no-param-reassign
delete loaderContext._compilation.assets[workerFilename];
// TODO improve this, we should store generated source maps files for file in `assetInfo`
// eslint-disable-next-line no-underscore-dangle
if (loaderContext._compilation.assets[`${workerFilename}.map`]) {
// eslint-disable-next-line no-underscore-dangle, no-param-reassign
delete loaderContext._compilation.assets[`${workerFilename}.map`];
}
}
if (content) {
return callback(null, content);
}
let workerSource = compilation.assets[workerFilename].source();
if (options.inline === 'no-fallback') {
// Remove `/* sourceMappingURL=url */` comment
workerSource = workerSource.replace(sourceMappingURLRegex, '');
// Remove `//# sourceURL=webpack-internal` comment
workerSource = workerSource.replace(sourceURLWebpackRegex, '');
}
const workerCode = workerGenerator(
loaderContext,
workerFilename,
workerSource,
options
);
return cache.store(
cacheIdent,
cacheETag,
workerCode,
(storeCacheError) => {
if (storeCacheError) {
return callback(storeCacheError);
}
return callback(null, workerCode);
}
);
});
}
return callback(
new Error(
`Failed to compile web worker "${workerContext.request}" request`
)
);
});
}