From a9736eaa70bac15bbf38b85fb5f47ffb1b57a9e7 Mon Sep 17 00:00:00 2001
From: Edoardo Zoni <ezoni@lbl.gov>
Date: Fri, 1 Nov 2024 16:45:06 -0700
Subject: [PATCH] Do not remove backtrace files in `cleanup` test

---
 Examples/CMakeLists.txt     | 2 +-
 Examples/test_cleanup.cmake | 7 +++++++
 2 files changed, 8 insertions(+), 1 deletion(-)
 create mode 100644 Examples/test_cleanup.cmake

diff --git a/Examples/CMakeLists.txt b/Examples/CMakeLists.txt
index f36bcbb9973..728c2142932 100644
--- a/Examples/CMakeLists.txt
+++ b/Examples/CMakeLists.txt
@@ -198,7 +198,7 @@ function(add_warpx_test
     if(WarpX_TEST_CLEANUP)
         add_test(
             NAME ${name}.cleanup
-            COMMAND ${CMAKE_COMMAND} -E rm -rf ${THIS_WORKING_DIR}
+            COMMAND ${CMAKE_COMMAND} -P ${CMAKE_SOURCE_DIR}/Examples/test_cleanup.cmake ${THIS_WORKING_DIR}
         )
         # test cleanup depends on test run
         set_property(TEST ${name}.cleanup APPEND PROPERTY DEPENDS "${name}.run")
diff --git a/Examples/test_cleanup.cmake b/Examples/test_cleanup.cmake
new file mode 100644
index 00000000000..b15e31e1f5d
--- /dev/null
+++ b/Examples/test_cleanup.cmake
@@ -0,0 +1,7 @@
+# delete all test files except backtrace
+file(GLOB test_files ${CMAKE_ARGV3}/*)
+foreach(file ${test_files})
+    if(NOT ${file} MATCHES "Backtrace*")
+        execute_process(COMMAND ${CMAKE_COMMAND} -E rm -r ${file})
+    endif()
+endforeach()