webpack.config.dev.js

const path = require('path');

const webpack = require('webpack');
const HtmlWebpackPlugin = require('html-webpack-plugin');
const autoprefixer = require('autoprefixer');

module.exports = {
  resolve: {
    extensions: ['.js', '.jsx', '.json'],
    modules: [
      'node_modules',
      'example',
    ],
  },
  devtool: 'eval',
  entry: [
    'babel-polyfill',
    path.resolve(__dirname, 'example/webpack-public-path.js'), // must be first entry to properly set public path
    'webpack-hot-middleware/client?reload=true',
    path.resolve(__dirname, 'example/index.js'),
  ],
  target: 'web',
  output: {
    path: path.resolve(__dirname, 'dist'),
    publicPath: '/',
    filename: 'bundle.js',
    pathinfo: true,
  },
  plugins: [
    new webpack.DefinePlugin({
      'process.env.NODE_ENV': JSON.stringify('development'),
      __DEV__: true,
    }),
    new webpack.HotModuleReplacementPlugin(),
    new webpack.NoEmitOnErrorsPlugin(),
    new HtmlWebpackPlugin({
      template: 'example/index.ejs',
      minify: {
        removeComments: true,
        collapseWhitespace: true,
      },
      inject: true,
    }),
  ],
  module: {
    rules: [
      { test: /\.jsx?$/, exclude: /node_modules/, use: ['babel-loader'] },
      { test: /\.eot(\?v=\d+.\d+.\d+)?$/, use: ['file-loader'] },
      {
        test: /\.woff(2)?(\?v=[0-9]\.[0-9]\.[0-9])?$/,
        use: [
          {
            loader: 'url-loader',
            options: {
              limit: 10000,
              mimetype: 'application/font-woff',
            },
          },
        ],
      },
      {
        test: /\.ttf(\?v=\d+\.\d+\.\d+)?$/,
        use: [
          {
            loader: 'url-loader',
            options: {
              limit: 10000,
              mimetype: 'application/octet-stream',
            },
          },
        ],
      },
      {
        test: /\.svg(\?v=\d+\.\d+\.\d+)?$/,
        use: [
          {
            loader: 'url-loader',
            options: {
              limit: 10000,
              mimetype: 'image/svg+xml',
            },
          },
        ],
      },
      {
        test: /\.(jpe?g|png|gif)$/i,
        use: [
          {
            loader: 'file-loader',
            options: {
              name: '[name].[ext]',
            },
          },
        ],
      },
      {
        test: /\.ico$/,
        use: [
          {
            loader: 'file-loader',
            options: {
              name: '[name].[ext]',
            },
          },
        ],
      },
      {
        test: /(\.css|\.scss)$/,
        use: [
          {
            loader: 'style-loader',
          },
          {
            loader: 'css-loader',
            options: {
              sourceMap: true,
            },
          },
          {
            loader: 'postcss-loader',
            options: {
              sourceMap: true,
              plugins: () => [autoprefixer],
            },
          },
          {
            loader: 'sass-loader',
            options: {
              sourceMap: true,
            },
          },
        ],
      },
    ],
  },
};