webpack.config.js

const webpack = require('webpack');
const path = require('path');
const nodeEnv = process.env.NODE_ENV || 'development';
const isProd = nodeEnv === 'production';
const libname = 'conflict-resolver';

const config = {
  entry: './src/index.ts',
  output: {
    path: path.resolve(__dirname, 'dist'),
    filename: 'index.bundle.js',
    library: libname,
    libraryTarget: 'umd',
  },
  resolve: {
    extensions: ['.js', '.ts', '.json'],
  },
  devtool: isProd ? 'hidden-source-map' : 'cheap-module-eval-source-map',
  plugins: [
    new webpack.DefinePlugin({
      'process.env': {
        NODE_ENV: JSON.stringify(nodeEnv),
      },
    }),
    new webpack.optimize.ModuleConcatenationPlugin(),
  ],
  module: {
    rules: [
      {
        test: /\.ts$/,
        loader: 'ts-loader',
        options: { onlyCompileBundledFiles: true, compilerOptions: { outDir: '.' } },
      },
    ],
  },
};

module.exports = config;