@angular-devkit/build-angular
Version:
Angular Webpack Build Facade
52 lines (51 loc) • 2.1 kB
JavaScript
;
/**
* @license
* Copyright Google LLC All Rights Reserved.
*
* Use of this source code is governed by an MIT-style license that can be
* found in the LICENSE file at https://angular.dev/license
*/
Object.defineProperty(exports, "__esModule", { value: true });
exports.SuppressExtractedTextChunksWebpackPlugin = void 0;
/**
* Remove .js files from entry points consisting entirely of stylesheets.
* To be used together with mini-css-extract-plugin.
*/
class SuppressExtractedTextChunksWebpackPlugin {
apply(compiler) {
compiler.hooks.compilation.tap('SuppressExtractedTextChunks', (compilation) => {
compilation.hooks.chunkAsset.tap('SuppressExtractedTextChunks', (chunk, filename) => {
// Remove only JavaScript assets
if (!filename.endsWith('.js')) {
return;
}
// Only chunks with a css asset should have JavaScript assets removed
let hasCssFile = false;
for (const file of chunk.files) {
if (file.endsWith('.css')) {
hasCssFile = true;
break;
}
}
if (!hasCssFile) {
return;
}
// Only chunks with all CSS entry dependencies should have JavaScript assets removed
let cssOnly = false;
const entryModules = compilation.chunkGraph.getChunkEntryModulesIterable(chunk);
for (const module of entryModules) {
cssOnly = module.dependencies.every((dependency) => dependency.constructor.name === 'CssDependency');
if (!cssOnly) {
break;
}
}
if (cssOnly) {
chunk.files.delete(filename);
compilation.deleteAsset(filename);
}
});
});
}
}
exports.SuppressExtractedTextChunksWebpackPlugin = SuppressExtractedTextChunksWebpackPlugin;