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

Webpack Builder for Architect

"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.dev/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 () {
    var ownKeys = function(o) {
        ownKeys = Object.getOwnPropertyNames || function (o) {
            var ar = [];
            for (var k in o) if (Object.prototype.hasOwnProperty.call(o, k)) ar[ar.length] = k;
            return ar;
        };
        return ownKeys(o);
    };
    return function (mod) {
        if (mod && mod.__esModule) return mod;
        var result = {};
        if (mod != null) for (var k = ownKeys(mod), i = 0; i < k.length; i++) if (k[i] !== "default") __createBinding(result, mod, k[i]);
        __setModuleDefault(result, mod);
        return result;
    };
})();
Object.defineProperty(exports, "__esModule", { value: true });
exports.getEmittedFiles = getEmittedFiles;
exports.getWebpackConfig = getWebpackConfig;
const node_fs_1 = require("node:fs");
const path = __importStar(require("node:path"));
const node_url_1 = require("node:url");
function getEmittedFiles(compilation) {
    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: chunk.id?.toString(),
                name: chunk.name ?? undefined,
                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;
}
/**
 * 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, node_fs_1.existsSync)(configPath)) {
        throw new Error(`Webpack configuration file ${configPath} does not exist.`);
    }
    let config;
    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.
            config = await loadEsmModule((0, node_url_1.pathToFileURL)(configPath));
            break;
        case '.cjs':
            config = require(configPath);
            break;
        default:
            // The file could be either CommonJS or ESM.
            // CommonJS is tried first then ESM if loading fails.
            try {
                config = require(configPath);
                break;
            }
            catch (e) {
                if (e.code === 'ERR_REQUIRE_ESM' ||
                    e.code === 'ERR_REQUIRE_ASYNC_MODULE') {
                    // 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.
                    config = await loadEsmModule((0, node_url_1.pathToFileURL)(configPath));
                }
                throw e;
            }
    }
    return 'default' in config ? config.default : config;
}