Simplify `fetch()` and `fetch_items()` in the backends

chaoss / grimoirelab-perceval

Send Sir Perceval on a quest to retrieve and gather data from software repositories.

http://perceval.readthedocs.io/

GNU General Public License v3.0

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Simplify `fetch()` and `fetch_items()` in the backends #848

Open vchrombie opened 2 weeks ago

vchrombie commented 2 weeks ago

Fixes #527

I trying an attempt to solve this issue. I picked the Gitter backend to get started and see get some feedback on the changes. I will be working on rest of the backends one by one. I am sure this is going to be a huge PR, so I will take some time and add a backend each time allowing time for reviewing.

Let me know if you have any suggestions.