RFE: allow listing protected packages under /usr

[keszybz]

Support for config under /usr was added in a bunch of places (#813, #820, #882), but config_main.cpp has:

protected_packages{resolve_globs("dnf5 glob:/etc/dnf/protected.d/*.conf")};

[j-mracek]

The protected_packages is a configuration option, therefore you can use standard configuration overrides. The problem is that this option is not append. What about to change the option to an append and then use standard configuration overrides in usr to extend the list of protected packages?

[main]
protected_packages = <my_new_protected_package>

[keszybz]

The protected_packages is a configuration option, therefore you can use standard configuration overrides. The problem is that this option is not append. What about to change the option to an append and then use standard configuration overrides in usr to extend the list of protected packages?

[main]
protected_packages = <my_new_protected_package>

Yeah, this would work. We'd need to update various packages to install a file with two lines instead of just one, but that's a very simple change to make. But we'd get the file move and easier overrides essentially for free.

[j-mracek]

I discovered an interesting thing. Protected packages setting is taken always from root system. Somehow I consider it as a not correct behavior, but I understand that it would be difficult to modify the behavior or change the workflow.

[j-mracek]

I have a good news. The patch (#1110) is ready for testing.