fix(prerender): call nitroApp close hook when done prerendering (#2287)

Author: danielroe

src/prerender.ts

@@ -81,9 +81,9 @@ export async function prerender(nitro: Nitro) {
     nitroRenderer.options.output.serverDir,
     "index.mjs"
   );
-  const { localFetch } = (await import(
+  const { closePrerenderer, localFetch } = (await import(
     pathToFileURL(serverEntrypoint).href
-  )) as { localFetch: $Fetch };
+  )) as { closePrerenderer: () => Promise<void>; localFetch: $Fetch };
 
   // Create route rule matcher
   const _routeRulesMatcher = toRouteMatcher(
@@ -296,6 +296,8 @@ export async function prerender(nitro: Nitro) {
     interval: nitro.options.prerender.interval,
   });
 
+  await closePrerenderer();
+
   await nitro.hooks.callHook("prerender:done", {
     prerenderedRoutes: nitro._prerenderedRoutes,
     failedRoutes: [...failedRoutes],

src/runtime/entries/nitro-prerenderer.ts

@@ -3,6 +3,7 @@ import { nitroApp } from "../app";
 import { trapUnhandledNodeErrors } from "../utils";
 
 export const localFetch = nitroApp.localFetch;
+export const closePrerenderer = () => nitroApp.hooks.callHook("close");
 
 // Trap unhandled errors
 trapUnhandledNodeErrors();