@angular-devkit/build-angular/src/utils/index-file/html-rewriting-stream.js

Angular Webpack Build Facade

"use strict";
/**
 * @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
 */
Object.defineProperty(exports, "__esModule", { value: true });
exports.htmlRewritingStream = void 0;
const stream_1 = require("stream");
async function htmlRewritingStream(content) {
    const chunks = [];
    const rewriter = new (await Promise.resolve().then(() => require('parse5-html-rewriting-stream')))();
    return {
        rewriter,
        transformedContent: new Promise(resolve => {
            new stream_1.Readable({
                encoding: 'utf8',
                read() {
                    this.push(Buffer.from(content));
                    this.push(null);
                },
            })
                .pipe(rewriter)
                .pipe(new stream_1.Writable({
                write(chunk, encoding, callback) {
                    chunks.push(typeof chunk === 'string' ? Buffer.from(chunk, encoding) : chunk);
                    callback();
                },
                final(callback) {
                    callback();
                    resolve(Buffer.concat(chunks).toString());
                },
            }));
        }),
    };
}
exports.htmlRewritingStream = htmlRewritingStream;