nscom/vite.config.ts

  # Essential

import { defineConfig } from 'vite'
import vue from '@vitejs/plugin-vue'
import path from 'path'
import dts from 'vite-plugin-dts'
// import AutoImport from 'unplugin-auto-import/vite'
// import Components from 'unplugin-vue-components/vite'
import { ElementPlusResolver } from 'unplugin-vue-components/resolvers'

export default defineConfig({
  plugins: [
    vue(),
    // AutoImport({
    //   resolvers: [ElementPlusResolver()],
    // }),
    // Components({
    //   resolvers: [ElementPlusResolver()],
    // }),
    dts()],
  build: {
    lib: {
      entry: path.resolve(__dirname, 'src/components/index.js'),
      name: 'Essential',
      fileName: (format) => `essential.${format}.js`
    },
    rollupOptions: {
      // 确保外部化处理那些你不想打包进库的依赖
      external: ['vue'],
      output: {
        // 在 UMD 构建模式下为这些外部化的依赖提供一个全局变量
        globals: {
          vue: 'Vue'
        }
      }
    }
  }
})