@angular-devkit/build-webpack/src/utils.js

"use strict";
/**
 * @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.io/license
 */
var __createBinding = (this && this.__createBinding) || (Object.create ? (function(o, m, k, k2) {
    if (k2 === undefined) k2 = k;
    var desc = Object.getOwnPropertyDescriptor(m, k);
    if (!desc || ("get" in desc ? !m.__esModule : desc.writable || desc.configurable)) {
      desc = { enumerable: true, get: function() { return m[k]; } };
    }
    Object.defineProperty(o, k2, desc);
}) : (function(o, m, k, k2) {
    if (k2 === undefined) k2 = k;
    o[k2] = m[k];
}));
var __setModuleDefault = (this && this.__setModuleDefault) || (Object.create ? (function(o, v) {
    Object.defineProperty(o, "default", { enumerable: true, value: v });
}) : function(o, v) {
    o["default"] = v;
});
var __importStar = (this && this.__importStar) || function (mod) {
    if (mod && mod.__esModule) return mod;
    var result = {};
    if (mod != null) for (var k in mod) if (k !== "default" && Object.prototype.hasOwnProperty.call(mod, k)) __createBinding(result, mod, k);
    __setModuleDefault(result, mod);
    return result;
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.getWebpackConfig = exports.getEmittedFiles = void 0;
const fs_1 = require("fs");
const path = __importStar(require("path"));
const url_1 = require("url");
function getEmittedFiles(compilation) {
    var _a;
    const files = [];
    const chunkFileNames = new Set();
    // adds all chunks to the list of emitted files such as lazy loaded modules
    for (const chunk of compilation.chunks) {
        for (const file of chunk.files) {
            if (chunkFileNames.has(file)) {
                continue;
            }
            chunkFileNames.add(file);
            files.push({
                id: (_a = chunk.id) === null || _a === void 0 ? void 0 : _a.toString(),
                name: chunk.name,
                file,
                extension: path.extname(file),
                initial: chunk.isOnlyInitial(),
            });
        }
    }
    // add all other files
    for (const file of Object.keys(compilation.assets)) {
        // Chunk files have already been added to the files list above
        if (chunkFileNames.has(file)) {
            continue;
        }
        files.push({ file, extension: path.extname(file), initial: false, asset: true });
    }
    return files;
}
exports.getEmittedFiles = getEmittedFiles;
/**
 * This uses a dynamic import to load a module which may be ESM.
 * CommonJS code can load ESM code via a dynamic import. Unfortunately, TypeScript
 * will currently, unconditionally downlevel dynamic import into a require call.
 * require calls cannot load ESM code and will result in a runtime error. To workaround
 * this, a Function constructor is used to prevent TypeScript from changing the dynamic import.
 * Once TypeScript provides support for keeping the dynamic import this workaround can
 * be dropped.
 *
 * @param modulePath The path of the module to load.
 * @returns A Promise that resolves to the dynamically imported module.
 */
function loadEsmModule(modulePath) {
    return new Function('modulePath', `return import(modulePath);`)(modulePath);
}
async function getWebpackConfig(configPath) {
    if (!(0, fs_1.existsSync)(configPath)) {
        throw new Error(`Webpack configuration file ${configPath} does not exist.`);
    }
    switch (path.extname(configPath)) {
        case '.mjs':
            // Load the ESM configuration file using the TypeScript dynamic import workaround.
            // Once TypeScript provides support for keeping the dynamic import this workaround can be
            // changed to a direct dynamic import.
            return (await loadEsmModule((0, url_1.pathToFileURL)(configPath))).default;
        case '.cjs':
            return require(configPath);
        default:
            // The file could be either CommonJS or ESM.
            // CommonJS is tried first then ESM if loading fails.
            try {
                return require(configPath);
            }
            catch (e) {
                if (e.code === 'ERR_REQUIRE_ESM') {
                    // Load the ESM configuration file using the TypeScript dynamic import workaround.
                    // Once TypeScript provides support for keeping the dynamic import this workaround can be
                    // changed to a direct dynamic import.
                    return (await loadEsmModule((0, url_1.pathToFileURL)(configPath)))
                        .default;
                }
                throw e;
            }
    }
}
exports.getWebpackConfig = getWebpackConfig;
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