webpack.config.js

var ExtractTextPlugin = require("extract-text-webpack-plugin");

const extractSass = new ExtractTextPlugin({
    filename: "[name]/reactron.[name].css",
});

module.exports = {
    entry: {
        reactron: "./src/",
        windows: './src/sass/windows/',
        osx: './src/sass/osx/',
        linux: './src/sass/linux/',
    },
    output: {
        filename: "[name]/[name].js",
        chunkFilename: "[name]/[id].js",        
        path: __dirname + "/dist"
    },

    // Enable sourcemaps for debugging webpack's output.
    devtool: "source-map",

    resolve: {
        // Add '.ts' and '.tsx' as resolvable extensions.
        extensions: [".ts", ".tsx", ".js", ".json", "scss", "css"]
    },

    module: {
        rules: [
            // All files with a '.ts' or '.tsx' extension will be handled by 'awesome-typescript-loader'.
            { test: /\.tsx?$/, loader: "awesome-typescript-loader" },

            // All output '.js' files will have any sourcemaps re-processed by 'source-map-loader'.
            { enforce: "pre", test: /\.js$/, loader: ["source-map-loader", 'babel-loader'] },

            // All scss files transpiling
            {
                test: /\.scss$/,
                use: extractSass.extract({
                    use: [{
                        loader: "css-loader"
                    }, {
                        loader: "sass-loader"
                    }],
                    // use style-loader in development
                    fallback: "style-loader"
                })
            },
            {
                test: /\.ts$/,
                enforce: 'pre',
                loader: 'tslint-loader',
                exclude: /node_modules/,
                options: {
                    typeCheck: true,
                    emitErrors: true
                  }
            },
            {
                enforce: "pre",
                test: /\.js$/,
                exclude: /node_modules/,
                loader: "eslint-loader",
                options: {
                    typeCheck: true,
                    emitErrors: true
                  }
            },
            {
                test: /\.(eot|svg|ttf|woff|woff2)$/,
                loader: 'file-loader?name=fonts/[name].[ext]'
            }
        ]
    },
    plugins: [
        extractSass
    ],

    // When importing a module whose path matches one of the following, just
    // assume a corresponding global variable exists and use that instead.
    // This is important because it allows us to avoid bundling all of our
    // dependencies, which allows browsers to cache those libraries between builds.
    externals: {
        "react": "React",
        "react-dom": "ReactDOM"
    },
};