webpack.config.server.babel.js

import * as path from 'path'
import * as webpack from 'webpack'
import nodeExternals from 'webpack-node-externals'
import mainConfig from './webpack.config.babel'

const nodeEnv = process.env.NODE_ENV
const arenaRoot = process.env.ARENA_ROOT || __dirname
const arenaDist = process.env.ARENA_DIST || path.resolve(__dirname, 'dist')
const isProduction = nodeEnv === 'production'

// Common plugins
const plugins = [
  new webpack.DefinePlugin({
    'process.env.NODE_ENV': JSON.stringify(nodeEnv),
    'process.env.ARENA_ROOT': JSON.stringify(arenaRoot),
    'process.env.ARENA_DIST': JSON.stringify(arenaDist),
  }),
  ...(isProduction ? [] : [new webpack.HotModuleReplacementPlugin()]),
]

const entry = (entryPath) => [
  ...(isProduction ? [] : ['webpack/hot/poll?1000']),
  path.resolve(path.join(__dirname, entryPath)),
]

export default {
  mode: 'development',
  devtool: isProduction ? false : 'source-map',
  externals: [
    nodeExternals({ allowlist: ['webpack/hot/poll?1000'] }),
    // 'worker_threads',
  ],
  name: 'server',
  plugins,
  target: 'node',
  entry: {
    server: entry('server/server.js'),
    jobThread: entry('server/job/jobThread.js'),
    recordsUpdateThread: entry('server/modules/record/service/update/thread/recordsUpdateThread.js'),
  },
  output: {
    publicPath: 'dist/',
    path: path.resolve(__dirname, './'),
    filename: 'dist/[id].js',
    // LibraryTarget: 'commonjs2',
    hotUpdateChunkFilename: 'dist/hot-update-[id].js',
    hotUpdateMainFilename: 'dist/hot-update-[fullhash].json',
  },
  resolve: {
    extensions: ['.webpack-loader.js', '.web-loader.js', '.loader.js', '.js', '.jsx'],
    modules: [path.resolve(__dirname, 'node_modules')],
    alias: mainConfig.resolve.alias,
  },
  module: {
    rules: [
      {
        test: /\.(js|jsx)$/,
        exclude: /(node_modules|bower_components)/,
        use: ['cache-loader', 'babel-loader'],
      },
    ],
  },
  node: {
    global: false,
    __filename: true,
    __dirname: true,
  },
  stats: 'errors-only',
}