webpack.common.js

const path = require('path');
//Plugins
const HtmlWebpackPlugin = require('html-webpack-plugin');
const CleanWebpackPlugin = require('clean-webpack-plugin');
const PurgecssPlugin = require('purgecss-webpack-plugin');
const glob = require('glob');
const SpeedMeasurePlugin = require("speed-measure-webpack-plugin");
const smp = new SpeedMeasurePlugin();

module.exports = smp.wrap({
    entry: './src/index.ts',
    resolve: {
        extensions: ['.tsx', '.ts', '.js']
    },
    output: {
        filename: 'bundle.js',
        path: path.resolve(__dirname, 'dist')
    },
    module: {
        rules: [
            {
                test: /\.tsx?$/,
                use: 'ts-loader',
                exclude: /node_modules/
            },
            {
                test: /\.(png|svg|jpg|gif)$/,
                use: [
                    'file-loader'
                ]
            },

            {
                test: /\.scss$/,
                use: ['style-loader', 'css-loader', 'sass-loader']
            },
            {
                test: /\.css$/,
                use: ['style-loader', 'css-loader', 'sass-loader']
            }
        ]
    },
    plugins: [
        new CleanWebpackPlugin(['dist']),
        new HtmlWebpackPlugin(
            {
                title: 'Site Starter',
                template: './src/index.html',
            }
        ),
        new PurgecssPlugin({
            paths: glob.sync(path + `/src/**/*`, {nodir: true})
        }),

    ]
});