Imagine, we have some too large npm package, which contain unnecessary large folders (or files).
How configure webpack.config.js to exclude this unnecessary large folders (or files) from bundle?
My webpack.config.js (generated by nativescript-dev-webpack):
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;
// 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'
snapshot, // --env.snapshot
uglify, // --env.uglify
report, // --env.report
sourceMap, // --env.sourceMap
hmr, // --env.hmr,
} = env;
const externals = (env.externals || []).map((e) => { // --env.externals
return new RegExp(e + ".*");
});
const appFullPath = resolve(projectRoot, appPath);
const appResourcesFullPath = resolve(projectRoot, appResourcesPath);
const entryModule = nsWebpack.getEntryModule(appFullPath);
const entryPath = `.${sep}${entryModule}.ts`;
const config = {
mode: uglify ? "production" : "development",
context: appFullPath,
externals,
watchOptions: {
ignored: [
appResourcesFullPath,
// Don't watch hidden files
"**/.*",
]
},
target: nativescriptTarget,
entry: {
bundle: entryPath,
},
output: {
pathinfo: false,
path: dist,
libraryTarget: "commonjs2",
filename: "[name].js",
globalObject: "global",
},
resolve: {
extensions: [".ts", ".js", ".scss", ".css"],
// Resolve {N} system modules from tns-core-modules
modules: [
resolve(__dirname, "node_modules/tns-core-modules"),
resolve(__dirname, "node_modules"),
"node_modules/tns-core-modules",
"node_modules",
],
alias: {
'~': appFullPath
},
// resolve symlinks to symlinked modules
symlinks: true
},
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: sourceMap ? "inline-source-map" : "none",
optimization: {
splitChunks: {
cacheGroups: {
vendor: {
name: "vendor",
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: [
new UglifyJsPlugin({
parallel: true,
cache: true,
uglifyOptions: {
output: {
comments: false,
},
compress: {
// The Android SBG has problems parsing the output
// when these options are enabled
'collapse_vars': platform !== "android",
sequences: platform !== "android",
},
mangle: { reserved: ["RadListView"] },
}
})
],
},
module: {
rules: [
{
test: new RegExp(entryPath),
use: [
// Require all Android app components
platform === "android" && {
loader: "nativescript-dev-webpack/android-app-components-loader",
options: { modules: appComponents }
},
{
loader: "nativescript-dev-webpack/bundle-config-loader",
options: {
loadCss: !snapshot, // load the application css if in debug mode
}
},
].filter(loader => !!loader)
},
{
test: /-page\.ts$/,
use: "nativescript-dev-webpack/script-hot-loader"
},
{
test: /\.(css|scss)$/,
use: "nativescript-dev-webpack/style-hot-loader"
},
{
test: /\.(html|xml)$/,
use: "nativescript-dev-webpack/markup-hot-loader"
},
{ test: /\.(html|xml)$/, use: "nativescript-dev-webpack/xml-namespace-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"
]
},
{
test: /\.ts$/,
use: {
loader: "ts-loader",
options: {
configFile: "tsconfig.tns.json",
allowTsInNodeModules: true,
},
}
},
]
},
plugins: [
// Define useful constants like TNS_WEBPACK
new webpack.DefinePlugin({
"global.TNS_WEBPACK": "true",
"process": undefined,
}),
// Remove all files from the out dir.
new CleanWebpackPlugin([ `${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: { glob: "fonts/**" } },
{ from: { glob: "**/*.jpg" } },
{ from: { glob: "**/*.png" } },
{ from: { glob: "**/*.db" } },
], { ignore: [`${relative(appPath, appResourcesFullPath)}/**`] }),
// Generate a bundle starter script and activate it in package.json
new nsWebpack.GenerateBundleStarterPlugin([
"./vendor",
"./bundle",
]),
// For instructions on how to set up workers with webpack
// check out https://github.com/nativescript/worker-loader
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 (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({
chunk: "vendor",
requireModules: [
"tns-core-modules/bundle-entry-points",
],
projectRoot,
webpackConfig: config,
}));
}
if (hmr) {
config.plugins.push(new webpack.HotModuleReplacementPlugin());
}
return config;
};
You may exclude any file / package those you don't want to be part of bundle by adding conditions (rules).
For example