rtl.config.js

const path = require('path');
const WebpackRTLPlugin = require('webpack-rtl-plugin');
const MiniCssExtractPlugin = require('mini-css-extract-plugin');
const RemovePlugin = require('remove-files-webpack-plugin');

// global variables
const distPath = `${path.resolve(__dirname)}/src/_metronic/assets/rtl`;
const entries = { style: './src/_metronic/assets/sass/style.scss' };

module.exports = {
  entry: entries,
  output: {
    // main output path in assets folder
    path: distPath,
    // output path based on the entries filename
    filename: '[name].js',
    // clean existing output folder
    clean: true,
  },
  resolve: {
    extensions: ['.scss'],
  },
  module: {
    rules: [
      {
        test: /\.scss$/,
        use: [MiniCssExtractPlugin.loader, 'css-loader', 'sass-loader'],
      },
    ],
  },
  plugins: [
    new MiniCssExtractPlugin({
      filename: '[name].css',
    }),
    new WebpackRTLPlugin(),
    new RemovePlugin({
      // delete uneeded files from webpack output
      after: {
        root: distPath,
        include: ['style.js', 'style.css'],
        trash: true,
      },
    }),
  ],
}