webpack.config.js

const path = require('path')
const HtmlWebpackPlugin = require('html-webpack-plugin')
const { BundleAnalyzerPlugin } = require('webpack-bundle-analyzer')

const { NODE_ENV = 'development' } = process.env
const isProd = NODE_ENV === 'production'
const isDoc = NODE_ENV === 'docs'

let entry = path.resolve(__dirname, './demo/index.tsx')
let output = undefined
let externals = undefined
let plugins = [
  new HtmlWebpackPlugin({
    template: path.resolve(__dirname, './demo/index.html'),
  }),
]

if (isProd) {
  output = {
    path: path.resolve(__dirname, './dist'),
    filename: '[name].js',
    library: 'Nycticorax',
    libraryTarget: 'umd',
    libraryExport: 'default',
  }
  externals = {
    react: {
      root: 'React',
      commonjs2: 'react',
      commonjs: 'react',
      umd: 'react',
    },
  }
  plugins = [new BundleAnalyzerPlugin()]
  entry = {
    index: path.resolve(__dirname, './src/index.ts'),
    core: path.resolve(__dirname, './src/core.ts'),
  }
}

if (isDoc) {
  entry = path.resolve(__dirname, './demo/index.tsx')
  output = {
    path: path.resolve(__dirname, './docs'),
    filename: '[name].[chunkhash:8].js',
  }
}

module.exports = {
  entry,

  mode: isProd || isDoc ? 'production' : 'development',

  output,

  devtool: 'source-map',

  stats: 'minimal',

  target: 'web',

  devServer: {
    allowedHosts: 'all',
    port: 1234,
    host: '0.0.0.0',
    static: {
      directory: './demo',
    },
  },

  resolve: {
    extensions: ['.js', '.ts', '.tsx'],
  },

  plugins,

  externals,

  module: {
    rules: [
      {
        test: /\.(ts|tsx)$/,
        exclude: /node_modules/,
        use: {
          loader: 'babel-loader',
        },
      },
    ],
  },
}