Webpack configuration for my Hugo sites

webpack.config.js

const webpack = require("webpack");
const ExtractTextPlugin = require("extract-text-webpack-plugin");
const ManifestPlugin = require("webpack-manifest-plugin");
const autoprefixer = require("autoprefixer");
const path = require("path");

module.exports = {
  entry: {
    main: [
      "./assets/javascripts/index.js",
      "./assets/stylesheets/all.css.scss"
    ],
    images: "./assets/images/index.js",
    vendor: ["./assets/javascripts/highlight.js"]
  },
  output: {
    path: path.join(__dirname, "static"),
    filename: "[name].[chunkhash].js"
  },
  module: {
    loaders: [
      {
        test: /\.s?css$/,
        loader: ExtractTextPlugin.extract({
          fallback: "style-loader",
          use: [
            "css-loader",
            {
              loader: "postcss-loader",
              options: {
                plugins: loader => [
                  autoprefixer({
                    browsers: [
                      ">1%",
                      "last 4 versions",
                      "Firefox ESR",
                      "not ie < 9"
                    ]
                  })
                ]
              }
            },
            "sass-loader"
          ]
        })
      },
      {
        exclude: [
          /\.html$/,
          /\.(js|jsx)$/,
          /\.s?css$/,
          /\.json$/,
          /\.svg$/,
          /\.jpg$/,
          /\.png$/
        ],
        loader: "url-loader",
        query: {
          limit: 10000,
          name: "media/[name].[hash:8].[ext]"
        }
      },
      // "file" loader image assets
      {
        include: [/\.png$/, /\.jpg$/, /\.gif$/],
        loaders: [
          {
            loader: "file-loader",
            query: {
              name: "images/[name].[hash:8].[ext]"
            }
          },
          "image-webpack-loader"
        ]
      },
      // "file" loader for svg
      {
        include: [/\.svg$/],
        loader: "file-loader",
        query: {
          name: "media/[name].[hash:8].[ext]"
        }
      }
    ]
  },
  plugins: [
    new ManifestPlugin({
      fileName: "../data/manifest.json"
    }),
    new ExtractTextPlugin("[name].[hash:8].css"),
    // JS optimizations
    new webpack.NamedChunksPlugin(chunk => {
      if (chunk.name) {
        return chunk.name;
      }
      return chunk
        .mapModules(m => path.relative(m.context, m.request))
        .join("_");
    }),
    new webpack.NamedModulesPlugin(),
    new webpack.optimize.UglifyJsPlugin(),
    new webpack.optimize.CommonsChunkPlugin({
      name: ["vendor"]
    }),
    new webpack.optimize.CommonsChunkPlugin({
      name: ["runtime"]
    })
  ]
};