vite.config.js

import { defineConfig } from "vite";
import { sveltekit } from "@sveltejs/kit/vite";

// @ts-expect-error process is a nodejs global
const host = process.env.TAURI_DEV_HOST;

// https://vitejs.dev/config/
export default defineConfig(async () => ({
	plugins: [sveltekit()],

	// Vite options tailored for Tauri development and only applied in `tauri dev` or `tauri build`
	//
	// 1. prevent vite from obscuring rust errors
	clearScreen: false,
	// 2. tauri expects a fixed port, fail if that port is not available
	server: {
		headers: {
			"Cross-Origin-Opener-Policy": "same-origin",
			"Cross-Origin-Embedder-Policy": "require-corp"
		},
		port: 1420,
		strictPort: true,
		host: host || false,
		hmr: host
			? {
					protocol: "ws",
					host,
					port: 1421
				}
			: undefined,
		watch: {
			// 3. tell vite to ignore watching `src-tauri`
			ignored: ["**/src-tauri/**"]
		}
	}
}));