webpack.config.production.js

/**
 * Build config for electron 'Renderer Process' file
 */

import webpack from 'webpack';
import ExtractTextPlugin from 'extract-text-webpack-plugin';
import merge from 'webpack-merge';
import baseConfig from './webpack.config.base';

const config = merge(baseConfig, {
    devtool: 'cheap-module-source-map',

    entry: [
        'babel-polyfill',
        './app/index'
    ],

    output: {
        publicPath: '../dist/'
    },

    module: {
        rules: [
            // Extract all .global.css to style.css as is
            {
                test: /\.global\.css$/,
                loader: ExtractTextPlugin.extract({ fallback: 'style-loader', use: 'css-loader' })
            },

            // Pipe other styles through css modules and apend to style.css
            {
                test: /^((?!\.global).)*\.css$/,
                loader: ExtractTextPlugin.extract(
                    {
                        fallback: 'style-loader',
                        use: 'css-loader?modules&importLoaders=1&localIdentName=[name]__[local]___[hash:base64:5]'
                    }
                )
            },

            {
                test: /\.scss$/,
                use: ['style-loader', 'css-loader', 'sass-loader']
            }
        ]
    },

    plugins: [
        // https://webpack.github.io/docs/list-of-plugins.html#occurrenceorderplugin
        // https://github.com/webpack/webpack/issues/864
        new webpack.optimize.OccurrenceOrderPlugin(),

        // NODE_ENV should be production so that modules do not perform certain development checks
        new webpack.DefinePlugin({
            'process.env.NODE_ENV': JSON.stringify('production')
        }),

        // Minify without warning messages and IE8 support
        new webpack.optimize.UglifyJsPlugin({
            compressor: {
                screw_ie8: true,
                warnings: false
            }
        }),

        // Set the ExtractTextPlugin output filename
        new ExtractTextPlugin({ filename: 'style.css', allChunks: true })
    ],

    // https://github.com/chentsulin/webpack-target-electron-renderer#how-this-module-works
    target: 'electron-renderer'
});

export default config;