vite.config.js

import { defineConfig } from 'vite';
import vue from '@vitejs/plugin-vue';
import VueSetupExtend from 'vite-plugin-vue-setup-extend';
import cssInjectedByJsPlugin from 'vite-plugin-css-injected-by-js';
import dts from 'vite-plugin-dts';
import copy from 'rollup-plugin-copy';
import path from 'path';

// https://vitejs.dev/config/
export default defineConfig({
  build: {
    outDir: 'publish',
    lib: {
      entry: path.resolve(__dirname, './src/components/index.ts'),
      name: 'SimpleMessage',
      fileName: 'index',
    },
    rollupOptions: {
      external: ['vue'],
      output: {
        globals: {
          vue: 'Vue',
        },
        exports: 'named',
      },
    },
  },
  plugins: [
    vue(),
    VueSetupExtend(),
    cssInjectedByJsPlugin(),
    dts({ rollupTypes: true }),
    copy({
      targets: [
        { src: 'package.json', dest: 'publish' },
        { src: 'README.md', dest: 'publish' },
        { src: 'LICENSE', dest: 'publish' },
      ],
      hook: 'writeBundle',
    }),
  ],
});