From e5035706851683ab378eda89f4efb0abe7c4a8d5 Mon Sep 17 00:00:00 2001
From: "copilot-swe-agent[bot]" <198982749+Copilot@users.noreply.github.com>
Date: Wed, 25 Feb 2026 11:43:36 +0000
Subject: [PATCH 1/4] Initial plan


From 5afbccfe87947462a04aa099037fcc778ae7c468 Mon Sep 17 00:00:00 2001
From: "copilot-swe-agent[bot]" <198982749+Copilot@users.noreply.github.com>
Date: Wed, 25 Feb 2026 11:45:30 +0000
Subject: [PATCH 2/4] fix: sort manifest entries by key for stable build output
 in generateManifestModule

Co-authored-by: motopods <58200641+motopods@users.noreply.github.com>
---
 packages/start-plugin-core/src/start-compiler-plugin/plugin.ts | 1 +
 1 file changed, 1 insertion(+)

diff --git a/packages/start-plugin-core/src/start-compiler-plugin/plugin.ts b/packages/start-plugin-core/src/start-compiler-plugin/plugin.ts
index 388750ad92..e208ce4fb9 100644
--- a/packages/start-plugin-core/src/start-compiler-plugin/plugin.ts
+++ b/packages/start-plugin-core/src/start-compiler-plugin/plugin.ts
@@ -114,6 +114,7 @@ function generateManifestModule(
   includeClientReferencedCheck: boolean,
 ): string {
   const manifestEntries = Object.entries(serverFnsById)
+    .sort(([a], [b]) => a.localeCompare(b))
     .map(([id, fn]) => {
       const baseEntry = `'${id}': {
                 functionName: '${fn.functionName}',

From fcfaec801a57e89af00a019cd8b0957d6e0f4302 Mon Sep 17 00:00:00 2001
From: Copilot <198982749+Copilot@users.noreply.github.com>
Date: Wed, 25 Feb 2026 20:23:06 +0800
Subject: [PATCH 3/4] Replace localeCompare with deterministic UTF-16 code unit
 sort in manifest generation (#3)

* Initial plan

* Replace localeCompare with deterministic UTF-16 code unit comparison in generateManifestModule

Co-authored-by: motopods <58200641+motopods@users.noreply.github.com>

---------

Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com>
Co-authored-by: motopods <58200641+motopods@users.noreply.github.com>
---
 packages/start-plugin-core/src/start-compiler-plugin/plugin.ts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/packages/start-plugin-core/src/start-compiler-plugin/plugin.ts b/packages/start-plugin-core/src/start-compiler-plugin/plugin.ts
index e208ce4fb9..62b10edc01 100644
--- a/packages/start-plugin-core/src/start-compiler-plugin/plugin.ts
+++ b/packages/start-plugin-core/src/start-compiler-plugin/plugin.ts
@@ -114,7 +114,7 @@ function generateManifestModule(
   includeClientReferencedCheck: boolean,
 ): string {
   const manifestEntries = Object.entries(serverFnsById)
-    .sort(([a], [b]) => a.localeCompare(b))
+    .sort(([a], [b]) => (a < b ? -1 : a > b ? 1 : 0))
     .map(([id, fn]) => {
       const baseEntry = `'${id}': {
                 functionName: '${fn.functionName}',

From 58fab21024ca386b26bed912916e465e6b3f0446 Mon Sep 17 00:00:00 2001
From: motopods <58200641+motopods@users.noreply.github.com>
Date: Wed, 18 Mar 2026 11:39:46 +0800
Subject: [PATCH 4/4] Enhance comments for manifest entry sorting

Add comments to clarify sorting purpose for manifest entries.
---
 packages/start-plugin-core/src/start-compiler-plugin/plugin.ts | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/packages/start-plugin-core/src/start-compiler-plugin/plugin.ts b/packages/start-plugin-core/src/start-compiler-plugin/plugin.ts
index 62b10edc01..94e9889c17 100644
--- a/packages/start-plugin-core/src/start-compiler-plugin/plugin.ts
+++ b/packages/start-plugin-core/src/start-compiler-plugin/plugin.ts
@@ -114,6 +114,9 @@ function generateManifestModule(
   includeClientReferencedCheck: boolean,
 ): string {
   const manifestEntries = Object.entries(serverFnsById)
+    // Sort entries by ID so that the generated manifest has a stable, deterministic order. 
+    // Non-deterministic ordering causes the compiled hash of the same source file to change 
+    // between builds, breaking content-addressed caching and reproducible deployments.
     .sort(([a], [b]) => (a < b ? -1 : a > b ? 1 : 0))
     .map(([id, fn]) => {
       const baseEntry = `'${id}': {