From 7c8ac4c88775de9d44b1c1d2015f25aa06cb8da1 Mon Sep 17 00:00:00 2001
From: Lawrence Chen <54008264+lawrencecchen@users.noreply.github.com>
Date: Thu, 29 Jan 2026 17:55:02 -0800
Subject: [PATCH] Fix CI build cache error by cleaning DerivedData

Add a step to remove stale GhosttyTabs DerivedData before building
to prevent the "cannot open constant extraction protocol list input
file" error that occurs with incremental builds on self-hosted runners.
---
 .github/workflows/ci.yml | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 1751e3ce..6f2e0d61 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -50,6 +50,11 @@ jobs:
           cp -R ghostty/macos/GhosttyKit.xcframework GhosttyKit.xcframework
           test -d GhosttyKit.xcframework
 
+      - name: Clean DerivedData
+        run: |
+          # Remove stale build cache to avoid incremental build errors
+          rm -rf ~/Library/Developer/Xcode/DerivedData/GhosttyTabs-*
+
       - name: Run UI tests
         run: |
           set -euo pipefail