tracker/webpack.config.js

/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
'use strict';
const path = require('path');

module.exports = (_env, argv) => {
    let config = {
        entry: './src/javascript/index.js',
        output: {
            path: path.resolve(__dirname, "dist"),
            filename: "unomi-tracker.js",
            library: {
                name: "unomiTracker",
                type: 'umd'
            }
        },
        resolve: {
            extensions: ['.js', '.jsx']
        },
        module: {
            rules: [
                {
                    test: /\.m?js$/,
                    exclude: /node_modules/,
                    use: [
                        {
                            // Reference: https://github.com/babel/babel-loader
                            // Transpile .js files using babel-loader
                            // Compiles ES6 and ES7 into ES5 code
                            loader: 'babel-loader',
                            options: {
                                presets: [['@babel/preset-env', {
                                    useBuiltIns: 'usage',
                                    corejs: 3,
                                    targets: {browsers: ['Safari >= 7', 'ie >= 10']}
                                }]],
                                plugins: [
                                    ['@babel/plugin-transform-for-of', {loose: true}]
                                ],
                                cacheCompression: false
                            }
                        }
                    ]
                }]
        }
    };

    if (argv.mode !== 'production') {
        config.devtool = 'eval-source-map';
    }

    return config;
};