webpack.prod.js

const { merge } = require("webpack-merge");
const common = require("./webpack.common");
const MiniCssExtractPlugin = require("mini-css-extract-plugin");
const { CleanWebpackPlugin } = require("clean-webpack-plugin");

module.exports = merge(common, {
  mode: "production",
  module: {
    rules: [
      {
        test: /\.(sa|sc|c)ss$/,
        use: [
          {
            loader: MiniCssExtractPlugin.loader,
            options: {
              publicPath: "./",
            },
          },
          "css-loader",
          //Check postcss.config.js file for configuration
          "postcss-loader",
          "sass-loader",

        ],
      },
    ],
  },
  plugins: [
    // Removes/cleans build folders and unused assets when rebuilding
    new CleanWebpackPlugin(),
    // Extracts CSS into minified files
    // Note: style-loader is for development, MiniCssExtractPlugin is for production
    new MiniCssExtractPlugin({
      filename: "[name].[contenthash].css",
    }),
  ],
});