webpack.javascript.js

const { join, relative, resolve, sep } = require("path");

const webpack = require("webpack");
const nsWebpack = require("nativescript-dev-webpack");
const nativescriptTarget = require("nativescript-dev-webpack/nativescript-target");
const CleanWebpackPlugin = require("clean-webpack-plugin");
const CopyWebpackPlugin = require("copy-webpack-plugin");
const { BundleAnalyzerPlugin } = require("webpack-bundle-analyzer");
const { NativeScriptWorkerPlugin } = require("nativescript-worker-loader/NativeScriptWorkerPlugin");
const UglifyJsPlugin = require("uglifyjs-webpack-plugin");

module.exports = env => {
    // Add your custom Activities, Services and other android app components here.
    const appComponents = [
        "tns-core-modules/ui/frame",
        "tns-core-modules/ui/frame/activity",
    ];

    const platform = env && (env.android && "android" || env.ios && "ios");
    if (!platform) {
        throw new Error("You need to provide a target platform!");
    }

    const platforms = ["ios", "android"];
    const projectRoot = __dirname;
    nsWebpack.loadAdditionalPlugins({ projectDir: projectRoot });

    // Default destination inside platforms/<platform>/...
    const dist = resolve(projectRoot, nsWebpack.getAppPath(platform, projectRoot));
    const appResourcesPlatformDir = platform === "android" ? "Android" : "iOS";

    const {
        // The 'appPath' and 'appResourcesPath' values are fetched from
        // the nsconfig.json configuration file
        // when bundling with `tns run android|ios --bundle`.
        appPath = "app",
        appResourcesPath = "app/App_Resources",

        // You can provide the following flags when running 'tns run android|ios'
        production, // --env.production
        snapshot, // --env.snapshot
        uglify, // --env.uglify
        report, // --env.report
    } = env;

    const appFullPath = resolve(projectRoot, appPath);
    const appResourcesFullPath = resolve(projectRoot, appResourcesPath);

    const entryModule = nsWebpack.getEntryModule(appFullPath);
    const entryPath = `.${sep}${entryModule}.js`;
    const vendorPath = `.${sep}vendor.js`;

    const config = {
        mode: production ? "production" : "development",
        context: appFullPath,
        watchOptions: {
            ignored: [
                appResourcesFullPath,
                // Don't watch hidden files
                "**/.*",
            ]
        },
        target: nativescriptTarget,
        entry: {
            bundle: entryPath,
            vendor: vendorPath,
        },
        output: {
            pathinfo: false,
            path: dist,
            libraryTarget: "commonjs2",
            filename: "[name].js",
            globalObject: "global",
        },
        resolve: {
            extensions: [".js", ".scss", ".css"],
            // Resolve {N} system modules from tns-core-modules
            modules: [
                "node_modules/tns-core-modules",
                "node_modules",
            ],
            alias: {
                '~': appFullPath
            },
            // don't resolve symlinks to symlinked modules
            symlinks: false
        },
        resolveLoader: {
            // don't resolve symlinks to symlinked loaders
            symlinks: false
        },
        node: {
            // Disable node shims that conflict with NativeScript
            "http": false,
            "timers": false,
            "setImmediate": false,
            "fs": "empty",
            "__dirname": false,
        },
        devtool: "none",
        optimization:  {
            runtimeChunk: { name: "vendor" },
            splitChunks: {
                cacheGroups: {
                    common: {
                        name: "common",
                        chunks: "all",
                        test: (module, chunks) => {
                            const moduleName = module.nameForCondition ? module.nameForCondition() : '';
                            return /[\\/]node_modules[\\/]/.test(moduleName) ||
                                    appComponents.some(comp => comp === moduleName);

                        },
                        enforce: true,
                    },
                }
            },
            minimize: !!uglify,
            minimizer: [
                // Override default minimizer to work around an Android issue by setting compress = false
                new UglifyJsPlugin({
                    uglifyOptions: {
                        compress: platform !== "android"
                    }
                })
            ],
        },
        module: {
            rules: [
                { test: /\.(html|xml)$/, use: "raw-loader" },

                {
                    test: /\.css$/,
                    use: { loader: "css-loader", options: { minimize: false, url: false } }
                },

                {
                    test: /\.scss$/,
                    use: [
                        { loader: "css-loader", options: { minimize: false, url: false } },
                        "sass-loader"
                    ]
                }
            ]
        },
        plugins: [
            // Define useful constants like TNS_WEBPACK
            new webpack.DefinePlugin({
                "global.TNS_WEBPACK": "true",
            }),
            // Remove all files from the out dir.
            new CleanWebpackPlugin([ `${dist}/**/*` ]),
           // Copy native app resources to out dir.
            new CopyWebpackPlugin([
              {
                from: `${appResourcesFullPath}/${appResourcesPlatformDir}`,
                to: `${dist}/App_Resources/${appResourcesPlatformDir}`,
                context: projectRoot
              },
            ]),
            // Copy assets to out dir. Add your own globs as needed.
            new CopyWebpackPlugin([
                { from: "fonts/**" },
                { from: "**/*.jpg" },
                { from: "**/*.png" },
                { from: "**/*.xml" },
            ], { ignore: [`${relative(appPath, appResourcesFullPath)}/**`] }),
            // Generate a bundle starter script and activate it in package.json
            new nsWebpack.GenerateBundleStarterPlugin([
                "./vendor", // install webpackJsonpCallback
                "./common", // require app/vendor.js
                "./bundle", // require the entry module (app/app.js)
            ]),
            // Support for web workers since v3.2
            new NativeScriptWorkerPlugin(),
            new nsWebpack.PlatformFSPlugin({
                platform,
                platforms,
            }),
            // Does IPC communication with the {N} CLI to notify events when running in watch mode.
            new nsWebpack.WatchStateLoggerPlugin(),
        ],
    };

    if (platform === "android") {
        // Require all Android app components
        // in the entry module (bundle.js) and the vendor module (vendor.js).
        config.module.rules.unshift({
            test: new RegExp(`${entryPath}|${vendorPath}`),
            use: {
                loader: "nativescript-dev-webpack/android-app-components-loader",
                options: { modules: appComponents }
            }
        });
    }

    if (report) {
        // Generate report files for bundles content
        config.plugins.push(new BundleAnalyzerPlugin({
            analyzerMode: "static",
            openAnalyzer: false,
            generateStatsFile: true,
            reportFilename: resolve(projectRoot, "report", `report.html`),
            statsFilename: resolve(projectRoot, "report", `stats.json`),
        }));
    }

    if (snapshot) {
        config.plugins.push(new nsWebpack.NativeScriptSnapshotPlugin({
            chunks: [
                "common",
                "vendor",
            ],
            projectRoot,
            webpackConfig: config,
            targetArchs: ["arm", "arm64", "ia32"],
            useLibs: false
        }));
    }

    return config;
};