webpack.common.js

'use strict';

const HtmlWebpackPlugin = require('html-webpack-plugin');
const CopyWebpackPlugin = require('copy-webpack-plugin');
const path = require('path');

module.exports = {
  entry: {
    popup: './src/index.js',
    content: './src/content.js',
    pageWorld: '@inboxsdk/core/pageWorld.js',
    background: '@inboxsdk/core/background.js',
  },
  devtool: 'source-map',
  module: {
    rules: [
      {
        test: /\.jsx?$/,
        exclude: /node_modules/,
        use: {
          loader: 'babel-loader',
          options: {
            presets: ['@babel/preset-env', '@babel/preset-react']
          }
        }
      },
      {
        test: /\.css$/,
        use: ['style-loader', 'css-loader']
      }
    ]
  },  
  plugins: [
    new HtmlWebpackPlugin({
      template: './public/index.html',
      filename: 'popup.html',
      chunks: ['popup']
    }),
    new CopyWebpackPlugin({
      patterns: [
        { from: 'public', to: '.' },
        { from: 'src/content.css', to: '.' },
        { from: 'public/icons', to: 'icons' },
      ]
    })
  ],
  output: {
    path: path.resolve(__dirname, 'dist'),
    clean: true
  },
};