webpack.config.js

'use strict';

const webpack = require('webpack');
const ExtractTextPlugin = require('extract-text-webpack-plugin');
const CopyWebpackPlugin = require('copy-webpack-plugin');
const path = require('path');
const merge = require('webpack-merge');

const webpackCommon = {
  entry: {
    app: ['./app/initialize']
  },
  module: {
    rules: [
      {
        test: /\.js?$/,
        exclude: /node_modules/,
        use: [
          {
            loader: 'babel-loader?presets[]=es2015'
          }
        ]
      },
      {
        test: /\.jst$/,
        use: {
          loader: 'underscore-template-loader'
        }
      },
      {
        test: /\.css$/,
        exclude: /node_modules/,
        use: ExtractTextPlugin.extract({
          fallback: 'style-loader',
          use: 'css-loader'
        })
      },
      { test: /\.scss$/, loaders: ['style', 'css', 'postcss', 'sass'] },
      { test: /\.(woff2?|ttf|eot|svg)$/, loader: 'url-loader' },
      { test: /bootstrap\/dist\/js\/umd\//, loader: 'imports?jQuery=jquery' }
    ]
  },
  output: {
    filename: 'app.js',
    path: path.join(__dirname, './public'),
    publicPath: '/'
  },
  plugins: [
    new ExtractTextPlugin('app.css'),
    new CopyWebpackPlugin([{
      from: './app/assets/index.html',
      to: './index.html'
    }]),
    new webpack.ProvidePlugin({
      $: 'jquery',
      jQuery: 'jquery',
      _: 'underscore'
    })
  ],
  resolve: {
    modules: [
      path.join(__dirname, './node_modules'),
      path.join(__dirname, './app')
    ]
  },
  resolveLoader: {
    modules: [
      path.join(__dirname, './node_modules')
    ]
  }
};

switch (process.env.npm_lifecycle_event) {
  case 'start':
  case 'dev':
    module.exports = merge(webpackCommon, {
      devtool: '#inline-source-map',
      devServer: {
        contentBase: path.join(__dirname, 'public'),
        compress: true,
        port: 9000
      }
    });
    break;
  default:
    module.exports = merge(webpackCommon, {
      devtool: 'source-map'
    });
    break;
}