Practial limit to --addon=misra.py --project=compile_commands.json -ifoo -ibar -i<255 more dirs>?

[Dan George]

My project is organized such that it has a ton of 3rd-party and also Simulink coder files in it. Presently, I can filter those files with -i. But, when I try to also apply MISRA, --addon=misra.py, the addon doesn't produce any output.

This produces no output:

cppcheck --report-progress --project=compile_commands.json --addon=misra.py --enable=all --cppcheck-build-dir=build/compile_commands/cppcheck $(find vehicle/dev/aifcs-autocode -type d -printf " -i%p") -q $(find common/rtos -type d -name src -printf " -i%p") 2>&1 | grep misra

But, this does work (157 -i instances on the command line):

cppcheck --report-progress --project=compile_commands.json --addon=misra.py --enable=all --cppcheck-build-dir=build/compile_commands/cppcheck -q $(find common/rtos -type d -name src -printf " -i%p") 2>&1 | grep misra

Likewise, it works if only ignoring the autocode tree, but that one has fewer -i instances on the command line, anyway.

Is there another way to use the command line to ignore these directories?