Obfuscate via vite

vite.config.js

import { defineConfig } from 'vite';
import path from 'path';
import glob from 'glob';
import { esbuildCommonjs } from '@originjs/vite-plugin-commonjs';

// Function to generate a virtual entry file content
const generateVirtualEntry = (srcFiles, moduleFiles) => {
  let content = '';
  // Import specific modules first
  content += moduleFiles.map(file => `import "${file}";`).join('\n');
  // Then import all src files
  content += '\n' + srcFiles.map(file => `import "${file}";`).join('\n');
  return content;
};

// Find all JS files in src
const srcFiles = glob.sync(path.resolve(__dirname, 'src/**/*.js')).map(file =>
  path.relative(__dirname, file).replace(/\\/g, '/')
);

// Specify module files to include explicitly and first
const moduleFiles = [
  'node_modules/example1/a.js',
  'node_modules/angular/angular.js', // prefer NON-minified files to avoid issues
  'node_modules/example2/b.js'
].map(file => path.relative(__dirname, file).replace(/\\/g, '/'));

export default defineConfig({
  plugins: [
    // If you have CommonJS dependencies, consider using this plugin
    esbuildCommonjs(),
    {
      name: 'configure-input',
      config: () => ({
        build: {
          rollupOptions: {
            input: 'virtual-entry',
          },
        },
      }),
      resolveId(source) {
        if (source === 'virtual-entry') {
          return source; // this signals that rollup should not try to resolve the import
        }
        return null;
      },
      load(id) {
        if (id === 'virtual-entry') {
          return generateVirtualEntry(srcFiles, moduleFiles);
        }
        return null;
      },
    },
  ],
  build: {
    rollupOptions: {
      // This will create a single bundle file
      output: {
        format: 'iife', // Wrap your code in an immediately invoked function expression (IIFE)
      },
    },
    minify: 'terser', // Use terser for minification
    terserOptions: {
      compress: {
        drop_console: true, // Remove console.log statements
        drop_debugger: true, // Remove debugger statements
      },
      mangle: true, // Mangle names for obfuscation
    },
    sourcemap: false, // Set to true if you need a source map
  },
});

Setup:

npm install vite glob  @rollup/plugin-virtual --save-dev

Build:

npx vite build