webpack.config.js

'use strict';

const fs = require('fs');
const path = require('path');
const webpack = require('webpack');

const EXAMPLES_DIR = path.join(__dirname, 'examples');

function buildEntries() {
  return fs.readdirSync(EXAMPLES_DIR).reduce(function(entries, dir) {
    const isDraft = dir.charAt(0) === '_';
    const isDirectory = fs.lstatSync(path.join(EXAMPLES_DIR, dir)).isDirectory();
    const entryFile = path.join(EXAMPLES_DIR, dir, 'app.js');

    if (!isDraft && isDirectory && fs.existsSync(entryFile)) {
      entries[dir] = entryFile;
    }

    return entries;
  }, {});
}

module.exports = {
  entry: buildEntries(),
  output: {
    filename: '[name].js',
    chunkFilename: '[id].chunk.js',
    path: path.join(__dirname, 'examples/__build__'),
    publicPath: '/__build__/',
  },
  module: {
    rules: [
      {
        test: /\.js$/,
        exclude: /node_modules/,
        loader: 'babel-loader',
      },
      {
        test: /\.css$/,
        use: ['style-loader', 'css-loader'],
      },
    ],
  },
  plugins: [new webpack.optimize.CommonsChunkPlugin({ name: 'shared' })],
};