services: make commands aware of rdm version

[ppanero]

I do not like this way because it requires installing invenio-app-rdm which technically cli should not be aware of (i.e. in containerized version).

Shall we parse the Pipfile?

[ntarocco]

Suggested change

	if rdm_version[0] < 10:
	if rdm_version[0] >= 10:

?

What if we do something more structured, e.g. create a enum/map of features with version, for example (allow me pseudo-code):

versions = { 
  10: [custom-fields, administration],
   ...
}

then an helper:

get_enabled_features():
  return versions[current-app-rdm version]

and then in the code we get that map and use it?

if custom-fields-in-version:
  run init command

[ppanero]

@ntarocco I've for now just parsed the app-rdm version from the pipfile (I tried with the existing configparser but it doesnt work, my guess is the double [[ ]] at the beginning)

Regarding the more complex logic of commands/features per version I do agree but I think we can leave it for a different/PR issue and tackle it along with the distinction of RDM/ILS of the cli? so we unblock this on the release. I can start working on that, but I think is better on a separate PR since it will be a big change.

[ppanero]

Opened relevant issues:

• Make commands flavour agnostic flavour: make commands flavour agnostic #311
• support commands versioning #312