webpack.config.js

const path = require("path");
const CopyPlugin = require("copy-webpack-plugin");
const {CleanWebpackPlugin} = require("clean-webpack-plugin");

let config = {
	entry: {
		main: "./src/main.ts",
	},
	devtool: "source-map",
	module: {
		rules: [
			{
				test: /\.tsx?$/,
				use: "ts-loader",
				exclude: /node_modules/
			},
			{
				test: /\.(glsl|obj|mtl|frag|vert)$/i,
				use: "raw-loader"
			},
			{
				test: /\.(png|jpe?g|gif)$/i,
				loader: "file-loader",
				options: {
					name: "[path][name].[ext]"
				}
			}
		]
	},
	resolve: {
		extensions: [".tsx", ".ts", ".js"],
		alias: {
			assets: path.resolve(__dirname, "src/assets"),
			"@": path.resolve(__dirname, "src")
		}
	},
	output: {
		filename: "[name].js",
		library: undefined,
		libraryTarget: "commonjs2",
		path: path.resolve(__dirname, "dist"),
	},
	devServer: {
		compress: true,
		port: 8080,
	},
	target: "node"
};

module.exports = (env, argv) => {
	if (argv.mode == "development"){
		config.entry.sample = "./src/sample/sample.ts";
		config.plugins=[
			new CopyPlugin({patterns: [
				{from: path.resolve(__dirname, "public"), to: path.resolve(__dirname, "dist")}
			]})
		],
		config.target = undefined;
		config.output.library = undefined;
		config.output.libraryTarget = undefined;
	}else{
		config.plugins = [
			new CleanWebpackPlugin()
		];
		config.module.rules[0].exclude = /(node_modules|src\/sample)/;
	}

	return config;
};