cppcheck-suppressor

A tool that creates suppression file from Cppcheck results that can be used as a baseline to run further Cppcheck analysis, highlighting any new errors in the analyzed code.

Setting a baseline helps to see new issues. However, all the errors reported by Cppcheck before setting a baseline should be reviewed with care.

Installation

Install the latest cppcheck-suppressor with

pipx install cppcheck-suppressor

or the python package with

pip install cppcheck-suppressor

Usage

To use the cppcheck-suppressor together with Cppcheck, first make a throughout analysis of your project with Cppcheck without any suppressions and save the results to a xml file:

cppcheck --xml src/ 2> cppcheck_errors.xml

This assumes your sources are in the src/ folder. Use the arguments for Cppcheck that you would use otherwise - just no --suppress or --suppress-xml arguments, and keep the --xml argument.

After creating the results with Cppcheck, use the cppcheck-suppressor to create a baseline from the results:

cppcheck-suppressor --file cppcheck_errors.xml --output baseline.xml

or

python -m cppcheck_suppressor --file cppcheck_errors.xml --output baseline.xml

And finally use the baseline in the further Cppcheck analyses:

cppcheck --suppress-xml=baseline.xml src/

Now, Cppcheck reports only new issues from the project. The baseline should be updated - especially when any errors are solved from the project.