Exclude files not in compile_commands.json

[stsoe]

I am using clang-tidy-review in a project where some files in a pull request may be conditionally compiled based on the platform used for building.

The CMake generated compile_commands.json accurately reflects what files are built, if a file is not in compile_commands.json is there a way to have it excluded by create_review()? Warnings generated for any of these missing files can be very misleading and cause a lot of confusion.

[ZedThree]

I think this should be reasonably simple -- we can additionally filter files based on if they're in compile_commands.json