scratch-desktop/webpack.renderer.js

const path = require('path');

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

const makeConfig = require('./webpack.makeConfig.js');

module.exports = defaultConfig =>
    makeConfig(
        defaultConfig,
        {
            name: 'renderer',
            useReact: true,
            disableDefaultRulesForExtensions: ['js', 'jsx', 'css', 'svg', 'png', 'wav', 'gif', 'jpg', 'ttf'],
            babelPaths: [
                path.resolve(__dirname, 'src', 'renderer'),
                /node_modules[\\/]+scratch-[^\\/]+[\\/]+src/,
                /node_modules[\\/]+pify/,
                /node_modules[\\/]+@vernier[\\/]+godirect/
            ],
            plugins: [
                new CopyWebpackPlugin([{
                    from: 'node_modules/scratch-gui/node_modules/scratch-blocks/media',
                    to: 'static/blocks-media'
                }]),
                new CopyWebpackPlugin([{
                    from: 'extension-worker.{js,js.map}',
                    context: 'node_modules/scratch-vm/dist/web'
                }]),
                new CopyWebpackPlugin([{
                    from: 'node_modules/scratch-gui/src/lib/libraries/*.json',
                    to: 'static/libraries',
                    flatten: true
                }])
            ]
        }
    );