find "$root_dir" \( -name '*.cpp' -o -name '*.hpp' \) \
! -wholename '*/cpp-common/optional.hpp' \
! -wholename '*/cpp-common/string_view.hpp' \
find "$root_dir" \( -name '*.cpp' -o -name '*.hpp' \) \
! -wholename '*/cpp-common/optional.hpp' \
! -wholename '*/cpp-common/string_view.hpp' \