Link commit id of accepted patches to upstream gitweb

[jnikula]

Allow configuration of a per-project gitweb base URL. If configured, turn the commit id into a link to the gitweb interface.

[dlespiau]

So we'd need to attach a commit it do the patch when changing its state to Accepted. That will cause problems in rebasing tree, like dinq.

[jnikula]

The commit is already there, in the interface...

And yes, this causes problems already in rebasing trees. And there's already problems with patchwork not noticing when a patch is dropped from a tree (I could not think of an easy way to detect this).

[dlespiau]

Oh, well, if it's already there (I knew it!), adding the link is easy. For more advanced stuff, I think we'd need to link a tree to patchwork with a background task to fetch the upstream and do a bunch of things. Sounds involved.

The other way would be to have patchwork handle patch commit/revert/removal. That's also quite more involved than I'd like to right atm.