Minimum webpack.config.js from running sharp with nodejs

webpack.config.js

const webpack = require('webpack')

var fs = require('fs');
var nodeModules = {};
fs.readdirSync('node_modules')
  .filter(function(x) {
    return ['.bin'].indexOf(x) === -1;
  })
  .forEach(function(mod) {
    nodeModules[mod] = 'commonjs ' + mod;
  });

module.exports = {
  entry: './index.js',
  target: 'node',
  module: {
    loaders: [
      {
        test: /\.js$/,
        loader: 'babel-loader',
        exclude: /node_modules/,
      }
    ],
  },
  output: {
    filename: 'build.js',
  },
  externals: nodeModules,
}

Reference from: http://jlongster.com/Backend-Apps-with-Webpack--Part-I