webpack.config.local.js

const webpack = require('webpack');
const CompressionPlugin = require('compression-webpack-plugin');

// Start with dev config
const config = require('./webpack.config.js');

// Remove development server and code map
config.devServer = undefined;
config.devtool = '';
config.mode = 'production';

config.optimization = {
  usedExports: true,
  sideEffects: true,
  splitChunks: {
    chunks: 'async', // TODO possibly set to all
    automaticNameDelimiter: '-',
    name: true,
  },
};


// Add optimization plugins
config.plugins.push(
  new CompressionPlugin({
    algorithm: 'gzip',
    test: /\.js$|\.css$|\.html$/,
    threshold: 10240,
    minRatio: 0.8,
  }),
);


// Replace development with production config
config.resolve.alias.networkConfig = `${__dirname}/src/networkConfig.local.json`;

module.exports = config;