webpack.config.dev.js

// Original work Copyright (c) 2017 PlanGrid, Inc.
// Modified work Copyright 2020, Trussworks, Inc.

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

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

module.exports = {
  devtool: 'cheap-module-source-map',

  mode: 'development',

  entry: {
    app: [
      'webpack-dev-server/client?http://localhost:8081/',
      'webpack/hot/dev-server',
      path.resolve(__dirname, './src/app.js'),
    ],
  },
  output: {
    path: path.resolve(__dirname, './build'),
    pathinfo: true,
    filename: 'app/js/[name].bundle.js',
    publicPath: '/',
  },
  resolve: {
    modules: [
      path.resolve(__dirname, 'src'),
      path.resolve(__dirname, 'example_files'),
      'node_modules',
    ],
    extensions: ['.js', '.json', '.jsx'],
  },

  module: {
    rules: [
      {
        test: /\.(js|jsx)$/,
        include: path.resolve(__dirname, './src'),
        loader: 'babel-loader',
        options: {
          cacheDirectory: true,
        },
      },
      {
        test: /\.(css|scss)$/,
        use: [
          {
            loader: 'style-loader',
          },
          {
            loader: 'css-loader',
          },
          {
            loader: 'postcss-loader',
            options: {
              postcssOptions: {
                plugins: [
                  "autoprefixer",
                ],
              }
            },
          },
          {
            loader: 'sass-loader',
          },
        ],
      },
      {
        test: /\.(js|jsx)$/,
        loader: 'eslint-loader',
        include: path.resolve(__dirname, 'src'),
        enforce: 'pre',
      },
      {
        test: [
          /\.wexbim$/,
          /\.jpg$/,
          /\.docx$/,
          /\.csv$/,
          /\.mp4$/,
          /\.xlsx$/,
          /\.doc$/,
          /\.avi$/,
          /\.webm$/,
          /\.mov$/,
          /\.mp3$/,
          /\.rtf$/,
          /\.pdf$/,
          /\.gif$/,
        ],
        loader: 'file-loader',
      },
      {
        test: /\.png$/,
        loader: 'url-loader',
        options: {
          limit: 10000,
        },
      },
    ],
  },

  plugins: [
    new HtmlWebpackPlugin({
      inject: true,
      template: path.resolve(__dirname, './index.html'),
    }),
    new webpack.HotModuleReplacementPlugin(),
  ],
}