fix: sort object keys before JSON.stringify in transformProjectGraphForRust

[omer-za]

Summary

Fixes #35297

JSON.stringify() preserves JavaScript object key insertion order. In transformProjectGraphForRust, target options and configurations are serialized with JSON.stringify() and passed to the Rust native hasher, which hashes them as-is for ProjectConfiguration.

If any Nx plugin or the target-defaults merge step produces these objects with keys in a different insertion order on different CI runners, the serialized string changes, causing the ProjectConfiguration hash to become non-deterministic. This leads to:

• Nx Cloud cache invalidation on CI reruns
• Previously succeeded tasks being re-executed unnecessarily
• Wasted CI compute time

The Fix

Adds a recursive sortObjectKeys helper that normalizes key order before serialization, making the ProjectConfiguration hash independent of JS object construction order.

Note: The Rust hasher already sorts target names before hashing (making the hash independent of target insertion order), but it does not normalize the content of the stringified options/configurations. This fix closes that gap.

Evidence

Tested locally using the native HashPlanner + TaskHasher APIs:

Without fix

Options string	ProjectConfiguration hash
{"cwd":"...","env":{...},"command":"jest","passWithNoTests":true}	10839486168096120338
{"passWithNoTests":true,"command":"jest","env":{...},"cwd":"..."}	14689511571626992510

With fix

Reversed ALL target orders AND ALL options/configurations key orders for ALL projects across the entire project graph:

• 530 ProjectConfiguration entries, 0 mismatches
• Identical task hashes

Related

This is analogous to the fix in commit db31f30 which sorted keys before hashing for AllExternalDependencies via hashObject.

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[nx-cloud]

View your CI Pipeline Execution ↗ for commit 0a44149

Command	Status	Duration	Result
nx-cloud record -- nx format:check	❌ Failed	14s	View ↗
nx run-many -t check-imports check-lock-files c...	✅ Succeeded	4s	View ↗
nx-cloud record -- nx sync:check	✅ Succeeded	23s	View ↗

---

☁️ Nx Cloud last updated this comment at 2026-04-23 21:03:12 UTC

[nx-cloud]

Nx Cloud is proposing a fix for your failed CI:

We applied a prettier formatting fix to packages/nx/src/native/transform-objects.ts to resolve the format:check failure. The configurations line introduced by the PR exceeded prettier's line length limit and needed to be wrapped across multiple lines. This change is purely cosmetic and does not affect the runtime behavior of the sortObjectKeys fix.

Tip

✅ We verified this fix by re-running nx-cloud record -- nx format:check.

diff --git a/packages/nx/src/native/transform-objects.ts b/packages/nx/src/native/transform-objects.ts
index c4164ea1..3f4e03af 100644
--- a/packages/nx/src/native/transform-objects.ts
+++ b/packages/nx/src/native/transform-objects.ts
@@ -36,7 +36,9 @@ export function transformProjectGraphForRust(
         inputs: targetConfig.inputs,
         outputs: targetConfig.outputs,
         options: JSON.stringify(sortObjectKeys(targetConfig.options)),
-        configurations: JSON.stringify(sortObjectKeys(targetConfig.configurations)),
+        configurations: JSON.stringify(
+          sortObjectKeys(targetConfig.configurations)
+        ),
         parallelism: targetConfig.parallelism,
       };
     }

🔔 Heads up, your workspace has pending recommendations ↗ to auto-apply fixes for similar failures.

Because this branch comes from a fork, it is not possible for us to apply fixes directly, but you can apply the changes locally using the available options below.

Apply changes locally with:

npx nx-cloud apply-locally ois5-3knp

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