webpack.config.js

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

const ExtractTextPlugin = require('extract-text-webpack-plugin');
const { CheckerPlugin } = require('awesome-typescript-loader');
const HtmlWebpackPlugin = require('html-webpack-plugin');

const isProduction = process.env.NODE_ENV === 'production';
const modifyConfigForEnvironment = isProduction ?
  require('./config/webpack.config.prod') :
  require('./config/webpack.config.dev');

const cssLoaders = cssLoaderConfig();

const extractStyles = extractStylesPlugin(isProduction);

const commonConfig = {
  entry: {
    app: './src/modules/app/index.tsx'
  },
  output: {
    filename: '[name].bundle.js',
    publicPath: '',
    path: __dirname + '/build', //dist
  },
  resolve: {
    extensions: ['.ts', '.tsx', '.js', '.jsx', '.json', '.css', '.scss', '.ttf', '.woff', '.woff2', '.svg', '.gif', '.png'],
    alias: {
      '@module': path.resolve(__dirname, "src/modules"),
      '@service': path.resolve(__dirname, "src/services"),
      '@util': path.resolve(__dirname, "src/utils"),
      moment$: 'moment/moment.js',
    },
    modules: ["node_modules", path.resolve(__dirname, 'node_modules/@abb/common-ux/dist/assets'), path.resolve(__dirname, 'src/modules/app/assets'),
    path.resolve(__dirname, 'node_modules/@abb/abb-common-ux-react')]
  },
  module: {
    rules: [
      {
        enforce: 'pre',
        test: /\.tsx?$/,
        loader: 'tslint-loader',
        exclude: /(node_modules)/,
        options: {
          emitErrors: true,
          failOnHint: true,
          configFile: 'tslint.json',
          tsConfigFile: 'tsconfig.json'
        }
      },
      {
        test: /\.tsx?$/,
        exclude: /(node_modules)/,
        loader: 'awesome-typescript-loader'
      },
      {
        test: /\.css$/,
        use: extractStyles.extract({
          fallback: 'style-loader',
          use: cssLoaders
        })
      },
      {
        test: /\.scss$/,
        use: extractStyles.extract({
          fallback: 'style-loader',
          use: [
            ...cssLoaders,
            {
              loader: 'sass-loader',
              options: {
                sourceMap: true,
                convertToAbsoluteUrls: true,
                precision: 8
              }
            },
          ]
        })
      },
      {
        test: /\.(png|jpg|gif|svg|eot|ttf|woff|woff2)$/,
        loader: 'url-loader',
        options: {
          limit: 10000,
          name: '[name].[ext]'
        }
      }
    ]
  },
  watch: true,
  plugins: [
    new CheckerPlugin(),
      new HtmlWebpackPlugin({
        template: path.resolve(__dirname, 'src/modules/app/index.template.html'),
        // excludeChunks: ['common-ux'],
        inject: 'body',
      }),
    extractStyles,
    new webpack.DefinePlugin({
      'process.env.NODE_ENV': JSON.stringify(process.env.NODE_ENV || 'development')
    }),
  ]
};

module.exports = modifyConfigForEnvironment(commonConfig, __dirname);

function cssLoaderConfig() {
  return [
    {
      loader: 'css-loader',
      options: {
        sourceMap: true,
        importLoaders: 1
      }
    }
    // {
    //   loader: 'postcss-loader',
    //   options: {
    //     sourceMap: true,
    //     plugins: function () {
    //       return [
    //         require('precss'),
    //         require('autoprefixer')
    //       ];
    //     }
    //   }
    // }
  ];
}

function extractStylesPlugin(isProduction) {
  return new ExtractTextPlugin({
    filename: "[name].[contenthash].css",
    disable: !isProduction
  });
}