webpack.config.js

/* global __dirname, require, module*/
const webpack = require("webpack");
const path = require("path");
const env = require("yargs").argv.env; // use --env with webpack 2
const pkg = require("./package.json");
const BundleAnalyzerPlugin = require("webpack-bundle-analyzer")
  .BundleAnalyzerPlugin;
const showBundle = false;
let plugins = [new webpack.IgnorePlugin(/^\.\/locale$/, /moment$/)];

if (showBundle) {
  plugins.push(new BundleAnalyzerPlugin());
}
let libraryName = pkg.name;

let outputFile, minimize;

if (env === "build") {
  minimize = true;
  outputFile = libraryName + ".min.js";
} else {
  minimize = false;
  outputFile = libraryName + ".js";
}

const config = {
  mode: "production",
  entry: __dirname + "/src/index.js",
  devtool: "source-map",
  output: {
    path: __dirname + "/lib",
    filename: outputFile,
    library: libraryName,
    libraryTarget: "umd",
    umdNamedDefine: true
  },
  optimization: {
    minimize: minimize
  },
  module: {
    rules: [
      {
        test: /(\.jsx|\.js)$/,
        loader: "babel-loader",
        exclude: /(node_modules|bower_components)/,
        options: {
          plugins: ["lodash"],
          presets: [["env", { modules: false, targets: { node: 4 } }]]
        }
      }
      /*
        {
          test: /(\.jsx|\.js)$/,
          loader: 'eslint-loader',
          exclude: /node_modules/
        }
        */
    ]
  },
  plugins: plugins,
  resolve: {
    modules: [path.resolve("./node_modules"), path.resolve("./src")],
    extensions: [".json", ".js"],
    alias: {}
  },
  externals: {
    lodash: {
      commonjs: "lodash",
      commonjs2: "lodash",
      amd: "_",
      root: "_"
    },
    axios: "axios",
    bluebird: "bluebird",
    formiojs: "formiojs",
    lokijs: "lokijs",
    md5: "md5",
    moment: "moment",
    uuid: "uuid",
    grapesjs: "grapesjs"
  },
  node: {
    // prevent webpack from injecting mocks to Node native modules
    // that does not make sense for the client
    dgram: "empty",
    fs: "empty",
    net: "empty",
    tls: "empty"
  }
};

module.exports = config;