@angular-devkit/build-angular
Version:
Angular Webpack Build Facade
90 lines (89 loc) • 3.52 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", { value: true });
exports.IndexHtmlWebpackPlugin = void 0;
/**
* @license
* Copyright Google Inc. 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.io/license
*/
const path = require("path");
const webpack_sources_1 = require("webpack-sources");
const augment_index_html_1 = require("../utilities/index-file/augment-index-html");
const strip_bom_1 = require("../utilities/strip-bom");
function readFile(filename, compilation) {
return new Promise((resolve, reject) => {
compilation.inputFileSystem.readFile(filename, (err, data) => {
if (err) {
reject(err);
return;
}
resolve(strip_bom_1.stripBom(data.toString()));
});
});
}
class IndexHtmlWebpackPlugin {
constructor(options) {
this._options = {
input: 'index.html',
output: 'index.html',
entrypoints: ['polyfills', 'main'],
noModuleEntrypoints: [],
moduleEntrypoints: [],
sri: false,
...options,
};
}
apply(compiler) {
compiler.hooks.emit.tapPromise('index-html-webpack-plugin', async (compilation) => {
// Get input html file
const inputContent = await readFile(this._options.input, compilation);
compilation.fileDependencies.add(this._options.input);
// Get all files for selected entrypoints
const files = [];
const noModuleFiles = [];
const moduleFiles = [];
for (const [entryName, entrypoint] of compilation.entrypoints) {
const entryFiles = ((entrypoint && entrypoint.getFiles()) || []).map((f) => ({
name: entryName,
file: f,
extension: path.extname(f),
}));
if (this._options.noModuleEntrypoints.includes(entryName)) {
noModuleFiles.push(...entryFiles);
}
else if (this._options.moduleEntrypoints.includes(entryName)) {
moduleFiles.push(...entryFiles);
}
else {
files.push(...entryFiles);
}
}
const loadOutputFile = async (name) => {
const data = compilation.assets[name].source();
return typeof data === 'string' ? data : data.toString();
};
let indexSource = await augment_index_html_1.augmentIndexHtml({
input: this._options.input,
inputContent,
baseHref: this._options.baseHref,
deployUrl: this._options.deployUrl,
sri: this._options.sri,
crossOrigin: this._options.crossOrigin,
files,
noModuleFiles,
loadOutputFile,
moduleFiles,
entrypoints: this._options.entrypoints,
lang: this._options.lang,
});
if (this._options.postTransform) {
indexSource = await this._options.postTransform(indexSource);
}
// Add to compilation assets
compilation.assets[this._options.output] = new webpack_sources_1.RawSource(indexSource);
});
}
}
exports.IndexHtmlWebpackPlugin = IndexHtmlWebpackPlugin;