vite.config.ts

import { resolve } from 'node:path'
import Vue from '@vitejs/plugin-vue'
import Unocss from 'unocss/vite'
import { defineConfig } from 'vite'
import dts from 'vite-plugin-dts'

export default defineConfig({
  plugins: [
    Vue(),

    Unocss(),

    dts({
      rollupTypes: true,
    }),
  ],
  build: {
    sourcemap: true,
    lib: {
      // Could also be a dictionary or array of multiple entry points
      entry: resolve(__dirname, 'src/index.ts'),
      name: 'vue-range-multi',
      // the proper extensions will be added
      fileName: 'index',
      cssFileName: 'style',
    },
    rollupOptions: {
      // make sure to externalize deps that shouldn't be bundled
      // into your library
      external: ['vue'],
      output: {
        // Provide global variables to use in the UMD build
        // for externalized deps
        globals: {
          vue: 'Vue',
        },
      },
    },
  },
})