Support cloning via HTTPS

[matthiasbalke]

Currently marge-bot always clones GIT repositories via SSH, which is fine in most cases, but our GitLab is setup to only provide HTTPS access. Currently we cannot change this.

It would be awesome to provide a way to choose between SSH and HTTPS cloning.

If someone points me in the right direction I'm willing to implement this as a PR.

[jcpetruzza]

You could start looking here and follow the calls. The RepoManager will clone a new repo when needed (see here). You will need to get the proper credentials to that point.

[matthiasbalke]

Just a quick not for others: Currently I don't work on this issue. I sadly do not have enough time. So if anybody is interested in implementing this., please go ahead.

[flaviouk]

I've done this internally, but I had to disable the ssh option, or make it entirely optional. Not sure how you guys feel about that.
I believe it would be simpler to just remove ssh entirely and run https via token.
Also had to create a simple dockerfile to run the app, would you be interested in this as well?

[matthiasbalke]

@imflavio I would be interested in test driving your https implementation.

[flaviouk]

Okay I'll create a PR tomorrow 👍

[flaviouk]

@matthiasbalke Created it here: #248

[matthiasbalke]

I finally found some time to implement this. I took @flaviouk idea and added a compatible argument parsing around it.
PR is #283