phpengine/build.js

// const concat = require('concat');
//
// concat(["node_modules/bootstrap/dist/css/bootstrap.min.css", "ui/custom.css"], "bundle.css");
//

var compressor = require('node-minify');

compressor.minify({
        compressor: 'clean-css',
        input: [
            "node_modules/bootstrap/dist/css/bootstrap.min.css",
            "ui/custom.css"
        ],
        output: 'bundle.css'
    }
);

compressor.minify({
        compressor: 'uglifyjs',
        input: [
            "ui/custom.js"
        ],
        output: 'ui/custom.min.js'
    }
);

compressor.minify({
        compressor: 'no-compress',
        input: [
            "node_modules/bootstrap/dist/js/bootstrap.bundle.min.js",
            "node_modules/jquery/dist/jquery.min.js",
            "ui/custom.min.js"
        ],
        output: 'bundle.js'
    }
);