JBrowseMSA/packages/lib/webpack.config.mjs at main · GMOD/JBrowseMSA · GitHub

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import path from 'path'
import { fileURLToPath } from 'url'

import webpack from 'webpack'

const __dirname = path.dirname(fileURLToPath(import.meta.url))
const buildDir = path.resolve(__dirname)
const distDir = path.resolve(buildDir, 'bundle')

const mode = process.env.NODE_ENV || 'production'

export default {
  mode,
  entry: path.join(buildDir, 'src', 'webpack.ts'),
  devtool: 'source-map',
  output: {
    path: distDir,
    filename: 'index.js',
    library: 'ReactMSAView',
    libraryTarget: 'umd',
  },
  devServer: {
    port: 9000,
    open: 'umd_example/',
    headers: {
      'Access-Control-Allow-Origin': '*',
      'Access-Control-Allow-Headers': '*',
    },
  },
  plugins: [
    new webpack.optimize.LimitChunkCountPlugin({
      maxChunks: 1,
    }),
    new webpack.ProvidePlugin({
      React: 'react',
    }),
  ],
  resolve: {
    extensions: [
      '.mjs',
      '.web.js',
      '.js',
      '.ts',
      '.tsx',
      '.json',
      '.web.jsx',
      '.jsx',
    ],
  },

  module: {
    rules: [
      {
        oneOf: [
          {
            test: /\.m?[tj]sx?$/,
            exclude: /(node_modules|bower_components)/,
            use: {
              loader: 'babel-loader',
              options: {
                rootMode: 'upward',
                presets: ['@babel/preset-react'],
              },
            },
          },
          {
            test: /\.css$/,
            use: {
              loader: 'css-loader',
            },
          },
        ],
      },
    ],
  },
}