Ansible Copr module should support the /api_3/rpmrepo

[praiskup]

The rpmrepo route is used by DNF5 for convenience fallbacks (like trying epel-8, then rhel-8, etc.).

I don't think we can use DNF5 in the ansible-playbook (python vs. c++), though we could have the logic implemented in python3-copr at least. We could use it in Ansible module, but there are other projects that seem to be re-implementing the repo logic:

https://github.com/trytomakeyouprivate/COPR-command/blob/main/copr

[praiskup]

I suppose that having the logic implemented in python3-copr (or some even more minimalistic library), we could re-use the logic even in python3-dnf-plugins-core (DNF4). Note e.g. the decisions that need to be done using the old implementation: rpm-software-management/dnf-plugins-core#525