webpack.config.js

// Copyright 2015-2017 Parity Technologies (UK) Ltd.
// This file is part of Parity.

// Parity is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.

// Parity is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.

// You should have received a copy of the GNU General Public License
// along with Parity.  If not, see <http://www.gnu.org/licenses/>.

const path = require('path');
const ExtractTextPlugin = require('extract-text-webpack-plugin');
const HtmlWebpackPlugin = require('html-webpack-plugin');
const HappyPack = require('happypack');
const webpack = require('webpack');

const isProd = process.env.NODE_ENV === 'production';

module.exports = {
  devtool: isProd
    ? '#source-map'
    : '#eval',
  context: path.join(__dirname, 'src'),
  entry: {
    dist: ['babel-polyfill', './index.js']
  },
  output: {
    path: path.join(__dirname, 'dist'),
    publicPath: 'dist/',
    filename: '../dist.js'
  },
  module: {
    rules: [
      {
        test: /\.js$/,
        include: /node_modules\/(@parity\/dapp-|ethereumjs-util)/,
        use: [ {
          loader: 'happypack/loader',
          options: {
            id: 'babel'
          }
        } ]
      },
      {
        test: /\.js$/,
        exclude: /node_modules/,
        use: [ {
          loader: 'happypack/loader',
          options: {
            id: 'babel'
          }
        } ]
      },
      {
        test: /\.json$/,
        use: ['json-loader']
      },
      {
        test: /\.ejs$/,
        use: ['ejs-loader']
      },
      {
        test: /\.css$/,
        include: /semantic-ui-css/,
        use: ExtractTextPlugin.extract({
          fallback: 'style-loader',
          use: [
            {
              loader: 'css-loader',
              options: {
                minimize: isProd
              }
            }
          ]
        })
      },
      {
        test: /\.css$/,
        exclude: /semantic-ui-css/,
        use: ExtractTextPlugin.extract({
          fallback: 'style-loader',
          use: [
            {
              loader: 'css-loader',
              options: {
                importLoaders: 1,
                localIdentName: '[name]_[local]_[hash:base64:10]',
                minimize: isProd,
                modules: true
              }
            },
            {
              loader: 'postcss-loader',
              options: {
                plugins: (loader) => [
                  require('postcss-import'),
                  require('postcss-nested'),
                  require('postcss-simple-vars')
                ]
              }
            }
          ]
        })
      },
      {
        test: /\.(png|jpg|svg|woff|woff2|ttf|eot|otf)(\?.*)?$/,
        use: {
          loader: 'file-loader',
          options: {
            name: '[name].[hash:10].[ext]',
            outputPath: '',
            useRelativePath: false
          }
        }
      }
    ],
    noParse: [
      /node_modules\/sinon/
    ]
  },
  resolve: {
    alias: {},
    modules: [
      path.join(__dirname, 'node_modules')
    ],
    extensions: ['.json', '.js', '.jsx'],
    unsafeCache: true
  },
  node: {
    fs: 'empty'
  },
  plugins: [
    new ExtractTextPlugin({
      filename: '../dist.css'
    }),
    new HappyPack({
      id: 'babel',
      threads: 4,
      loaders: ['babel-loader']
    }),
    new HtmlWebpackPlugin({
      filename: '../index.html',
      template: './index.ejs',
      chunks: ['dist']
    }),
    new webpack.DefinePlugin({
      'process.env': {
        'NODE_ENV': JSON.stringify(process.env.NODE_ENV)
      }
    }),
    isProd && new webpack.optimize.ModuleConcatenationPlugin(),
    isProd && new webpack.optimize.UglifyJsPlugin({
      screwIe8: true,
      sourceMap: true,
      compress: {
        warnings: false
      },
      output: {
        comments: false
      }
    })
  ].filter((plugin) => plugin)
};