Suppressions in project file do not work in combination with --suppress arguments

[davidramnero]

If you have a .cppcheck project file with suppressions specified these seem to be ignored if you call cppcheck with --suppress="warningType" arguments in your command.

[ludviggunne]

I can't reproduce this.

tmp/project.cppcheck:

<?xml version="1.0" encoding="UTF-8"?>
<project version="1">
    <root name="."/>
    <suppressions>
        <suppression fileName="main.c">uninitvar</suppression>
    </suppressions>
    <paths>
        <dir name="."/>
    </paths>
</project>

tmp/main.c:

[[maybe_unused]]
int f()
{
        int x;
        return x;
}

No warnings with this command:

$ ./cppcheck --suppress=ctunullpointerOutOfMemory --project=tmp/project.cppcheck

[ludviggunne]

Adding the same suppression twice produces an error, but that error is never handled in importCppcheckGuiProject (there's a TODO). It seems like it would be useful to add additional suppressions on the command line though, maybe we should allow it in conjunction with project files?

[ludviggunne]

Fixed by ​https://github.com/cppcheck-opensource/cppcheck/pull/8757.