webpack.dev.config.js

const webpack = require('webpack');
const path = require('path');
const HtmlWebpackPlugin = require('html-webpack-plugin');
const { spawn } = require('child_process');

// Any directories you will be adding code/files into, need to be added to this array so webpack will pick them up
const defaultInclude = path.resolve(__dirname, 'src');

module.exports = {
	module: {
		rules: [
			{
				test: /\.scss$/,
				use: [{ loader: 'style-loader' }, { loader: 'css-loader' }, { loader: 'sass-loader' }],
				include: defaultInclude
			},
			{
				test: /\.js?$/,
				use: [
					{
							loader: 'babel-loader',
							options: {
									presets: ['env', 'metal-jsx'],
							}
					}
			],
				include: defaultInclude
			},
			{
				test: /\.(jpe?g|png|gif)$/,
				use: [{ loader: 'file-loader?name=img/[name]__[hash:base64:5].[ext]' }],
				include: defaultInclude
			},
			{
				test: /\.(eot|svg|ttf|woff|woff2)$/,
				use: [{ loader: 'file-loader?name=font/[name]__[hash:base64:5].[ext]' }],
				include: defaultInclude
			}
		]
	},
	target: 'electron-renderer',
	plugins: [
		new HtmlWebpackPlugin(),
		new webpack.DefinePlugin({
			'process.env.NODE_ENV': JSON.stringify('development')
		})
	],
	devtool: 'cheap-source-map',
	devServer: {
		contentBase: path.resolve(__dirname, 'dist'),
		stats: {
			colors: true,
			chunks: false,
			children: false
		},
		before() {
			spawn(
				'electron',
				['.'],
				{ shell: true, env: process.env, stdio: 'inherit' }
			)
			.on('close', code => process.exit(0))
			.on('error', spawnError => console.error(spawnError));
		}
	}
};