grapesjs/webpack.config.js

const HtmlWebpackPlugin = require('html-webpack-plugin');
const pkg = require('./package.json');
const webpack = require('webpack');
const fs = require('fs');
let plugins = [];

module.exports = (env = {}) => {
  if (env.prod) {
    plugins = [
      new webpack.optimize.ModuleConcatenationPlugin(),
      new webpack.optimize.UglifyJsPlugin({ minimize:true, compressor: {warnings:false}}),
      new webpack.BannerPlugin(`${pkg.name} - ${pkg.version}`),
    ]
  } else {
    const index = 'index.html';
    const indexDev = `_${index}`;
    plugins.push(new HtmlWebpackPlugin({
      template: fs.existsSync(indexDev) ? indexDev : index
    }));
  }

  plugins.push(new webpack.ProvidePlugin({
    _: 'underscore',
    Backbone: 'backbone'
  }));

  return {
    entry: './src',
    output: {
        filename: './dist/grapes.min.js',
        library: 'grapesjs',
        libraryTarget: 'umd',
    },
    plugins: plugins,
    module: {
      loaders: [{
          test: /grapesjs\/index\.js$/,
          loader: 'string-replace-loader',
          query: {
            search: '<# VERSION #>',
            replace: pkg.version
          }
        },{
          test: /\.js$/,
          loader: 'babel-loader',
          include: /src/
      }],
    },
    resolve: {
      modules: ['src', 'node_modules'],
      alias: {
        jquery: 'cash-dom'
      }
    },
  };
}