vite.config.js

import { defineConfig } from "vite";
import { resolve } from "path";
import vue from "@vitejs/plugin-vue";
import removeAttr from 'remove-attr';

const prod = process.env.NODE_ENV === 'production';

// https://vitejs.dev/config/
export default defineConfig({
  plugins: [
    vue(),
    removeAttr({
      extensions: [ 'vue' ],
      attributes: prod ?  [ 'data-cy' ] : [],
  })
  ],
  build: {
    lib: {
      // src/indext.ts is where we have exported the component(s)
      entry: resolve(__dirname, "src/index.js"),
      name: "VueDataUi",
      // the name of the output files when the build is run
      fileName: "vue-data-ui",
      formats: ['es', 'cjs']
    },
    rollupOptions: {
      // make sure to externalize deps that shouldn't be bundled
      // into your library
      external: ["vue", "vue-data-ui"],
      output: {
        // Provide global variables to use in the UMD build
        // for externalized deps
        globals: {
          vue: "Vue",
        },
      },
    },
    types: [
      {
        declarationDir: "dist/types",
        root: resolve(__dirname, "types"),
        entry: "vue-data-ui.d.ts",
      },
    ],
  },
});