Webpack Example Configuration

webpack.config.js

const path = require('path');
const glob = require('glob');
const webpack = require('webpack');
const PurifyCSSPlugin = require('purifycss-webpack');
const WebpackNotifierPlugin = require('webpack-notifier');
const CleanWebpackPlugin = require('clean-webpack-plugin');
const BrowserSyncPlugin = require('browser-sync-webpack-plugin');
const ExtractTextPlugin = require('extract-text-webpack-plugin');

let isProduction = process.env.NODE_ENV === 'production';

module.exports = {
    entry: {
        jdeglaw: [
            './src/js/main.js',
            './src/sass/main.scss'
        ]
    },
    output: {
        path: path.resolve(__dirname + '/build'),
        filename: 'js/[name]-[chunkhash].js'
    },
    module: {
        rules: [
            {
                test: /\.js$/,
                exclude: /node_modules/,
                loader: "babel-loader"
            },
            {
                test: /\.css$/,
                loader: 'file-loader',
                options: {
                    name: 'css/vendor/[name].[ext]'
                }

            },
            {
                test: /\.s[ac]ss*/,
                use: ExtractTextPlugin.extract({
                    use: [
                        {
                            loader: 'css-loader',
                            options: { url: false }
                        },
                        'sass-loader'
                    ],
                    fallback: 'style-loader'
                })
            }
        ]
    },
    plugins: [

        new ExtractTextPlugin('css/[name]-[chunkhash].css'),

        new CleanWebpackPlugin(['build/css', 'build/js'], {
            root: __dirname,
            verbose: true,
            dry: false
        }),

        new webpack.LoaderOptionsPlugin({
            minimize: isProduction
        }),

        new BrowserSyncPlugin({
            host: 'localhost',
            port: 3000,
            proxy: 'http://awesome.dev'
        }),

        new PurifyCSSPlugin({
            minimize: isProduction,
            paths: glob.sync(path.join(__dirname, '*.php')),
        }),

        new WebpackNotifierPlugin({
            title: 'YabPack',
            contentImage: path.join(__dirname, 'src/images/yab_icon.png')
        }),

        function() {
            this.plugin('done', stats => {
                require('fs').writeFileSync(
                    path.join(__dirname, 'assets/manifest.json'),
                    JSON.stringify(stats.toJson().assetsByChunkName)
                );
            });
        }

    ]
};

if (isProduction) {
    module.exports.plugins.push(
        new webpack.optimize.UglifyJsPlugin()
    );
}