webpack.prod.js

/*
 * Copyright (c) 2017 Charles University in Prague, Faculty of Arts,
 *                    Institute of the Czech National Corpus
 * Copyright (c) 2017 Tomas Machalek <tomas.machalek@gmail.com>
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; version 2
 * dated June, 1991.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.

 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
 */

const { merge } = require('webpack-merge');
const common = require('./scripts/build/webpack.common');
const webpack = require('webpack');
const MiniCssExtractPlugin = require('mini-css-extract-plugin');
const TerserPlugin = require('terser-webpack-plugin');


module.exports = (env) => merge(common.wpConf(env), {
	mode: 'production',
	module: {
		rules: [
			{
				test: /\.css$/,
				use: [
					{
						loader: MiniCssExtractPlugin.loader
					},
					{ loader: 'css-loader' }
				]
			},
		]
	},
	optimization: {
        minimizer: [
            new TerserPlugin(),
        ]
	},
	plugins: [
		new MiniCssExtractPlugin({
			filename: "[name].css",
			chunkFilename: "common.css"
		}),
		new webpack.DefinePlugin({
			'process.env.NODE_ENV': JSON.stringify('production')
		}),
	],
	devtool: env && !!env.SOURCE_MAPS ? "source-map" : false
});