thunderhub/server/webpack.development.js

const { CleanWebpackPlugin } = require('clean-webpack-plugin');
const merge = require('webpack-merge');
const nodeExternals = require('webpack-node-externals');
const path = require('path');
const webpack = require('webpack');
const WebpackShellPlugin = require('webpack-shell-plugin');

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

module.exports = merge.smart(common, {
    devtool: 'inline-source-map',
    entry: ['webpack/hot/poll?1000', path.join(__dirname, 'src/main.ts')],
    externals: [
        nodeExternals({
            modulesDir: path.resolve(__dirname, '../node_modules'),
            whitelist: ['webpack/hot/poll?1000'],
        }),
        nodeExternals({
            whitelist: ['webpack/hot/poll?1000'],
        }),
    ],
    mode: 'development',
    plugins: [
        new CleanWebpackPlugin(),
        new webpack.HotModuleReplacementPlugin(),
        new WebpackShellPlugin({
            onBuildEnd: ['yarn dev'],
        }),
    ],
    watch: true,
});