vite.config.js

import react from '@vitejs/plugin-react';
import { resolve } from 'path';
import { fileURLToPath } from 'url';
import { defineConfig } from 'vite';
import svgr from 'vite-plugin-svgr';
import dts from 'vite-plugin-dts';

const __dirname = fileURLToPath(new URL('.', import.meta.url));

// https://vitejs.dev/config/
export default defineConfig({
  plugins: [
    react(),
    svgr(),
    dts({
      rollupTypes: true,
    }),
  ],
  server: {
    port: 3000,
  },
  build: {
    copyPublicDir: false,
    lib: {
      entry: resolve(__dirname, './src/lib/index.tsx'),
      formats: ['es', 'umd', 'cjs'],
      name: 'react-tailwindcss-datetimepicker',
    },
    rollupOptions: {
      // make sure to externalize deps that shouldn't be bundled
      // into your library
      external: ['react', 'react-dom', 'react/jsx-runtime'],
      output: {
        // Provide global variables to use in the UMD build
        // for externalized deps
        globals: {
          react: 'React',
          'react-dom': 'ReactDOM',
          'react/jsx-runtime': 'react/jsx-runtime',
        },
      },
    },
  },
});