tinote-web/webpack.config.js at master · ModuleArt/tinote-web · GitHub

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const path = require("path")
const {CleanWebpackPlugin} = require("clean-webpack-plugin")
const HTMLWebpackPlugin = require("html-webpack-plugin")
const CopyPlugin = require("copy-webpack-plugin");
const MiniCssExtractPlugin = require("mini-css-extract-plugin");
const UglifyJsPlugin = require("uglifyjs-webpack-plugin");

const isProd = process.env.NODE_ENV === "production"
const isDev = !isProd

const filename = ext => isDev ? `bundle.${ext}` : `bundle.[hash].${ext}`

const jsLoaders = () => {
  const loaders = [
    {
      loader: "babel-loader",
      options: {
        presets: ["@babel/preset-env"],
        plugins: ["@babel/plugin-proposal-class-properties"]
      }
    }
  ]

  if (isDev) {
    loaders.push("eslint-loader")
  }

  return loaders
}

module.exports = {
  optimization: {
    minimize: isProd,
    minimizer: [
      new UglifyJsPlugin({
        uglifyOptions: {
          output: {
            comments: false
          }
        }
      })
    ],
  },
  context: path.resolve(__dirname, "src"),
  mode: isDev ? "development" : "production",
  entry: ["@babel/polyfill", "./index.js"],
  output: {
    filename: filename("js"),
    path: path.resolve(__dirname, "dist")
  },
  devtool: isDev ? "source-map" : false,
  devServer: {
    port: 3000,
    hot: isDev
  },
  resolve: {
    extensions: [".js"],
    alias: {
      "@": path.resolve(__dirname, "src"),
      "@core": path.resolve(__dirname, "src/core")
    }
  },
  plugins: [
    new CleanWebpackPlugin(),
    new HTMLWebpackPlugin({
      template: "index.html",
      minify: {
        removeComments: isProd,
        collapseWhitespace: isProd
      }
    }),
    new CopyPlugin({
      patterns: [
        {
          from: path.resolve(__dirname, "src/favicon.ico"),
          to: path.resolve(__dirname, "dist")
        },
        {
          from: path.resolve(__dirname, "src/profile-img.png"),
          to: path.resolve(__dirname, "dist")
        }
      ],
    }),
    new MiniCssExtractPlugin({
      filename: filename("css")
    })
  ],
  module: {
    rules: [
      {
        test: /\.s[ac]ss$/i,
        use: [
          {
            loader: MiniCssExtractPlugin.loader,
            options: {
              hmr: isDev,
              reloadAll: true
            }
          },
          "css-loader",
          "sass-loader"
        ]
      },
      {
        test: /\.js$/,
        exclude: /node_modules/,
        use: jsLoaders()
      }
    ]
  }
}