The target will run clang-tidy on all changed source and header files
The target is only created if the used clang-tidy supports all required
checks. The required checks will be extracted from the clang-tidy configuration
file, so the list should be alwyas correct.

Instead of having a hardcoded list of required checks the list is extracted
from the clang-tidy config file such that the list is always up to date.

Add CMake script to execute the TidyCheck in our CI

Download and install external packages needed when running clang-tidy.
To speed up things execute clang-tidy in parallel on differnt files if more
cores are available.

Add shell script used by the CMake target

Check changed header files only if there is a corresponding source file in the
compile_commands database. Currently there is no way to test header files
without corresponding source file (compilation unit).
Create missing but expected output directories.
Remove clang-tidy command line option
The option was moved to the config file.

The script find_files.sh is now used from two places so pass the required
information as parameters. Remove one unneded parameter

Don't download the external packages when running the code format checker.
This improves the run time from more than 4 minutes to less than  1 minute.
Test each file individually such that the results on CDash are shown for each
file separately.

Administrator authored 4 years ago and Florian Uhlig committed 4 years ago

Add format check in GitLab CI configuration file.
Add CMake target for format checker .
Add neede CMake files and shell scripts.
Add label in GitLab CI configuration file such that it can be
properly sorted on CDash.
The checker is disabled till we format the complete code base.