Only clean CMake artifacts in-tree

scripts/all-core.sh

@@ -369,6 +369,19 @@ Tool path options:
 EOF
 }
 
+# list_git_files PATTERN...
+# List files known to git, matching pattern.
+# Equivalent to `git ls-files --recurse-submodules PATTERN...`, but
+# works with older Git (especially on Ubuntu 16.04) that understand
+# submodules but not `git ls-files --recurse-submodules`.
+list_git_files ()
+{
+    git ls-files -- "$@"
+    for d in $(git submodule status --recursive | awk '{print $2}'); do
+        git ls-files "$@" | sed "s!^!$d/!"
+    done
+}
+
 # Cleanup before/after running a component.
 # Remove built files as well as the cmake cache/config.
 # Does not remove generated source files.
@@ -378,25 +391,23 @@ cleanup()
         command $MAKE_COMMAND clean
     fi
 
-    # Remove CMake artefacts
-    find . -name .git -prune -o \
-           -iname CMakeFiles -exec rm -rf {} \+ -o \
-           \( -iname cmake_install.cmake -o \
-              -iname CTestTestfile.cmake -o \
-              -iname CMakeCache.txt -o \
-              -path './cmake/*.cmake' \) -exec rm -f {} \+
-    # Remove Makefiles generated by in-tree CMake builds
-    # (Not all files will exist in all branches, but that's OK.)
-    rm -f 3rdparty/Makefile 3rdparty/*/Makefile
-    rm -f pkgconfig/Makefile framework/Makefile
-    rm -f include/Makefile programs/!(fuzz)/Makefile
-    rm -f tf-psa-crypto/Makefile tf-psa-crypto/include/Makefile
-    rm -f tf-psa-crypto/core/Makefile tf-psa-crypto/drivers/Makefile
-    rm -f tf-psa-crypto/tests/Makefile
-    rm -f tf-psa-crypto/drivers/everest/Makefile
-    rm -f tf-psa-crypto/drivers/p256-m/Makefile
-    rm -f tf-psa-crypto/drivers/builtin/Makefile
-    rm -f tf-psa-crypto/drivers/builtin/src/Makefile
+    # Remove files left over by an in-tree CMake build.
+    # Take care to only hit in-tree builds, not out-of-tree builds in
+    # subdirectories.
+    # Remove **/Makefile only if it looks like it was created by an in-tree
+    # CMake build.
+    local cmake_dirs=($(list_git_files 'CMakeLists.txt' '**/CMakeLists.txt' |
+                        sed -e 's![^/]*$!!'))
+    for d in "${cmake_dirs[@]}"; do
+        if [ -d "$d/CMakeFiles" ]; then
+            rm -rf "$d/CMakeFiles" \
+               "$d/cmake_install.cmake" \
+               "$d/CTestTestfile.cmake" \
+               "$d/CMakeCache.txt" \
+               "$d/Makefile"
+            rm -rf "$d/cmake"/*.cmake
+        fi
+    done
 
     # Remove any artifacts from the component_test_cmake_as_subdirectory test.
     rm -rf programs/test/cmake_subproject/build