Description of problem:

The API documentation is unclear about what kind of fields are editable, once the repository have been created.

https://fedorahosted.org/pulp/wiki/UGREST-Repositories#UpdateARepository mentions that "parameters: any field of a Repo object except id " can be passed and which are editable.

However, testing in reality (and reading the API code) shows that only a small subset of fields can actually be updated. To my knowledge, only

arch, name, sync_schedule

can be directly be updated.

While the feed_url/feed_type can be updated via the feed param, feed_(cert|ca|key) via feed_cert_data dictionary and the same for consumer_(cert|ca|key) via consumer_cert_data.

The API documentation should be more explicit about which fields can be updated and which special parameters can be used to update a set of fields.