But with a big difference: Normally you will compile the extern sources under build/_deps. But you must not check them!
Simply use i.e.: run-clang-tidy -p build sources examples tests
Just dump a .clang-tidy file in the _deps directory that disables all tests.
Works with whatever way you invoke clang-tidy and even in IDEs.
I also do that for the build folder to exclude generated files.
That’s a clever idea, how did you integrate that with cmake?
NOTE: You have to remove or override all existing .clang-tidy files too!