webpack.config.js

const production = process.env.NODE_ENV === 'production';
const path = require('path');
const webpack = require('webpack');
const ExtractTextPlugin = require('extract-text-webpack-plugin');
const ManifestPlugin = require('webpack-manifest-plugin');

module.exports = {
    entry: {
        app: path.resolve(__dirname, 'app/Resources/assets/js/app.js'),
        vendor: [
            'jquery',
            'moment',
            'highlightjs',
            'bootstrap',
        ]
    },
    output: {
        path: path.resolve(__dirname, 'web/builds'),
        filename: production ? '[name].[hash].js' : '[name].js' ,
        publicPath: '/builds/'
    },
    module: {
        rules: [
            {
                test: /\.js$/,
                exclude: /(node_modules)/,
                use: 'babel-loader'
            },
            {
                test: /\.scss$/,
                use: ExtractTextPlugin.extract({
                    fallback: 'style-loader',
                    use: [
                        {
                            loader: 'css-loader',
                            options: { // CSS Nano configuration
                                minimize: {
                                    discardComments: {
                                        removeAll: true
                                    },
                                    core: true,
                                    minifyFontValues: true
                                }
                            }
                        },
                        'sass-loader'
                    ]
                })
            },
            {
                test: /\.woff2?$|\.ttf$|\.eot$|\.svg$/,
                use: "url-loader"
            },
            {
                test: /jquery/,
                use: [
                    { loader: 'expose-loader', options: '$' },
                    { loader: 'expose-loader', options: 'jQuery' }
                ]
            }
        ]
    },
    plugins: [
        new webpack.HotModuleReplacementPlugin(),
        new webpack.ProvidePlugin({
            $: "jquery",
            jQuery: "jquery",
            "window.jQuery": "jquery",
            hljs: path.resolve(__dirname, 'app/Resources/assets/js/highlight.pack.js')
        }),
        new webpack.IgnorePlugin(/^\.\/locale$/, /moment$/),
        new ExtractTextPlugin(production ? '[name].[hash].css' : '[name].css'),
        new webpack.optimize.CommonsChunkPlugin({ name: 'vendor' }),
        new webpack.optimize.UglifyJsPlugin({
            beautify: false,
            compress: {
                screw_ie8: true,
                warnings: false
            },
            mangle: {
                screw_ie8: true,
                keep_fnames: true
            },
            comments: false
        }),
        new ManifestPlugin({
            fileName: 'manifest.json',
            basePath: 'builds/'
        })
    ],
    resolve: {
        alias: {
            fonts: path.resolve(__dirname, 'web/fonts'),
            jquery: path.resolve(__dirname, 'app/Resources/assets/js/jquery-2.1.4.min.js'),
            moment: path.resolve(__dirname, 'app/Resources/assets/js/moment.min.js'),
            highlightjs: path.resolve(__dirname, 'app/Resources/assets/js/highlight.pack.js'),
            bootstrap: path.resolve(__dirname, 'app/Resources/assets/js/bootstrap-3.3.4.min.js')
        }
    },
    devtool: 'eval-cheap-module-source-map',
    devServer: {
        hot: true,
        contentBase: './web/'
    }
};