fix: include hooks.server and hooks.universal as entrypoints to give them stable manifest identifiers (#15178)

* fix: include `hooks.server` and `hooks.universal` as entrypoints to give them stable manifest identifiers

* changeset

* yep

* lockfile

---------

Co-authored-by: Tee Ming <chewteeming01@gmail.com>

Author: elliott-with-the-longest-name-on-github

.changeset/hooks-server-assets.md

@@ -0,0 +1,5 @@
+---
+'@sveltejs/kit': patch
+---
+
+fix: include `hooks.server` and `hooks.universal` as explicit Vite build inputs to ensure assets imported by hooks files are correctly discovered

packages/kit/src/core/generate_manifest/find_server_assets.js

@@ -13,7 +13,6 @@ export function find_server_assets(build_data, routes) {
 	 */
 	const used_nodes = new Set([0, 1]);
 
-	// TODO add hooks.server.js asset imports
 	/** @type {Set<string>} */
 	const server_assets = new Set();
 
@@ -49,5 +48,9 @@ export function find_server_assets(build_data, routes) {
 		add_assets(build_data.manifest_data.hooks.server);
 	}
 
+	if (build_data.manifest_data.hooks.universal) {
+		add_assets(build_data.manifest_data.hooks.universal);
+	}
+
 	return Array.from(server_assets);
 }

packages/kit/src/exports/vite/index.js

@@ -848,6 +848,14 @@ async function kit({ svelte_config }) {
 						input[name] = path.resolve(file);
 					});
 
+					// ...and the hooks files
+					if (manifest_data.hooks.server) {
+						input['entries/hooks.server'] = path.resolve(manifest_data.hooks.server);
+					}
+					if (manifest_data.hooks.universal) {
+						input['entries/hooks.universal'] = path.resolve(manifest_data.hooks.universal);
+					}
+
 					// ...and the server instrumentation file
 					const server_instrumentation = resolve_entry(
 						path.join(kit.files.src, 'instrumentation.server')