webpack.config.js

const path = require("path");
const HtmlWebpackPlugin = require("html-webpack-plugin");
const MiniCssExtractPlugin = require("mini-css-extract-plugin");
const CopyPlugin = require("copy-webpack-plugin");
// const Dotenv = require("dotenv-webpack");

var fileExtensions = [
  "jpg",
  "jpeg",
  "png",
  "gif",
  "eot",
  "otf",
  "svg",
  "ttf",
  "woff",
  "woff2",
];

module.exports = {
  entry: {
    index: "./src/Index.jsx",
    web3Storage: ["regenerator-runtime/runtime.js", "./src/scripts/web3Storage.js"],
  },
  output: {
    path: path.resolve(__dirname, "buidl"),
    filename: "[name].js",
  },
  module: {
    rules: [
      {
        test: /\.(js|jsx)$/,
        exclude: /node_modules/,
        use: {
          loader: "babel-loader",
          options: {
            presets: ["@babel/preset-env", "@babel/preset-react"],
          },
        },
      },
      {
        test: /\.css$/,
        use: ["style-loader", "css-loader"],
      },
      {
        test: /\.css$/i,
        use: [MiniCssExtractPlugin.loader, "css-loader"],
      },
      {
        test: new RegExp(".(" + fileExtensions.join("|") + ")$"),
        use: ["file-loader"],
      },
    ],
  },
  plugins: [
    new HtmlWebpackPlugin({
      template: path.join(__dirname, "src", "popup.html"),
      filename: "popup.html",
    }),
    new HtmlWebpackPlugin({
      template: path.join(__dirname, "src", "file.html"),
      filename: "file.html",
    }),
    new HtmlWebpackPlugin({
      template: path.join(__dirname, "src", "folder.html"),
      filename: "folder.html",
    }),
    new MiniCssExtractPlugin(),
    new CopyPlugin({
      patterns: [{ from: "public" }],
    }),
    // new Dotenv({
    //   path: "./.env",
    // }),
  ],
};