better support vite.config.js by default

examples/solid/spa/basic/package.json

@@ -11,6 +11,7 @@
     "solid-js": "^1.7.8",
     "tailwindcss": "^3.3.2",
     "vinxi": "workspace:^",
+    "vite": "^4.4.8",
     "vite-plugin-solid": "^2.7.0"
   }
 }

examples/solid/spa/basic/vite.config.js

@@ -0,0 +1,6 @@
+import { defineConfig } from "vite";
+import solid from "vite-plugin-solid";
+
+export default defineConfig({
+	plugins: [solid()],
+});

packages/vinxi/bin/cli.mjs

@@ -1,8 +1,8 @@
 #!/usr/bin/env node
-import { loadConfig } from "c12";
 import mri from "mri";
-import { join, resolve } from "pathe";
-import { pathToFileURL } from "url";
+import { resolve } from "pathe";
+
+import { loadApp } from "../lib/load-app.js";
 
 async function main() {
 	const args = mri(process.argv.slice(2));
@@ -11,21 +11,7 @@ async function main() {
 
 	const configFile = args.config;
 	globalThis.MANIFEST = {};
-
-	/** @type {{ config: import("../lib/app.js").App }}*/
-	const { config: app } = await loadConfig(
-		configFile
-			? {
-					configFile,
-			  }
-			: {
-					name: "app",
-			  },
-	);
-
-	if (!app.config) {
-		throw new Error("No config found");
-	}
+	const app = await loadApp(configFile);
 
 	if (command === "dev") {
 		const { createDevServer } = await import("../lib/dev-server.js");

packages/vinxi/lib/app-worker.js

@@ -10,6 +10,7 @@ import { parentPort } from "node:worker_threads";
 
 import { createDevServer } from "./dev-server.js";
 import invariant from "./invariant.js";
+import { loadApp } from "./load-app.js";
 
 /**
  *
@@ -130,9 +131,7 @@ class AppWorker {
 				const {
 					req: { url, method, headers },
 				} = rest;
-				const { config: app } = await loadConfig({
-					name: "app",
-				});
+				const app = await loadApp();
 
 				try {
 					if (!this.server) {

packages/vinxi/lib/load-app.js

@@ -0,0 +1,55 @@
+import { loadConfig } from "c12";
+
+import { createApp } from "./app.js";
+
+/**
+ *
+ * @param {string | undefined} configFile
+ * @returns {Promise<import("./app.js").App>}
+ */
+export async function loadApp(configFile = undefined) {
+	/** @type {{ config: import("./app.js").App }}*/
+	let { config: app } = await loadConfig(
+		configFile
+			? {
+					configFile,
+			  }
+			: {
+					name: "app",
+			  },
+	);
+
+	if (!app.config) {
+		const { config } = await loadConfig({
+			name: "vite",
+		});
+
+		if (config.config) {
+			console.warn("Found vite.config.js with app config");
+			// @ts-expect-error trying to send c12's config as app
+			return config;
+		} else {
+			console.warn("No app config found. Assuming SPA app.");
+			return createApp({
+				routers: [
+					{
+						name: "public",
+						mode: "static",
+						dir: "./public",
+					},
+					{
+						name: "client",
+						mode: "spa",
+						handler: "./index.html",
+						build: {
+							target: "browser",
+							plugins: () => config.plugins ?? [],
+						},
+					},
+				],
+			});
+		}
+	}
+
+	return app;
+}