tauri-workspace/tooling/cli/templates/plugin/__example-api/tauri-app/vite.config.js

import { defineConfig } from "vite";
import { svelte } from "@sveltejs/vite-plugin-svelte";

// https://vitejs.dev/config/
export default defineConfig({
  plugins: [svelte()],

  // Vite optons tailored for Tauri development and only applied in `tauri dev` or `tauri build`
  // prevent vite from obscuring rust errors
  clearScreen: false,
  // tauri expects a fixed port, fail if that port is not available
  server: {
    port: 1420,
    strictPort: true,
  },
  // to make use of `TAURI_ENV_DEBUG` and other env variables
  // https://tauri.studio/v1/api/config#buildconfig.beforedevcommand
  envPrefix: ["VITE_", "TAURI_ENV_"],
  build: {
    // Tauri supports es2021
    target: ["es2021", "chrome100", "safari13"],
    // don't minify for debug builds
    minify: !process.env.TAURI_ENV_DEBUG ? "esbuild" : false,
    // produce sourcemaps for debug builds
    sourcemap: !!process.env.TAURI_ENV_DEBUG,
  },
});