ci: improve retry logic - only retry on timeout, show exit codes

Author: mfazekas

.github/workflows/ci.yml

@@ -271,17 +271,28 @@ jobs:
       - name: Run harness tests on iOS
         working-directory: example
         run: |
-          # Retry up to 3 times due to flaky harness connection
+          # Retry up to 3 times only on timeout (exit code 124)
           for attempt in 1 2 3; do
-            echo "Attempt $attempt of 3"
-            if yarn test:harness:ios --verbose --testTimeout 120000; then
+            echo "=== Attempt $attempt of 3 ==="
+            set +e
+            timeout 180 yarn test:harness:ios --verbose --testTimeout 120000
+            exit_code=$?
+            set -e
+
+            echo "Exit code: $exit_code"
+
+            if [ $exit_code -eq 0 ]; then
               echo "Tests passed on attempt $attempt"
               exit 0
+            elif [ $exit_code -eq 124 ]; then
+              echo "Timeout on attempt $attempt, retrying..."
+              sleep 5
+            else
+              echo "Tests failed with exit code $exit_code (not retrying)"
+              exit $exit_code
             fi
-            echo "Attempt $attempt failed, retrying..."
-            sleep 5
           done
-          echo "All attempts failed"
+          echo "All attempts timed out"
           exit 1
 
       - name: Debug - Check for console logs