Depending on how gitlab's CI checks out gnome-shell, the shell branch
may not have a local reference like "gnome-3-32", but only a remote
one like "remotes/origin/gnome-3-32".
Consider that case as well when looking for a corresponding mutter branch.
https://gitlab.gnome.org/GNOME/gnome-shell/merge_requests/511
If we don't find a branch that matches the branch used in the merge
request, we currently fall back to the non-merge-request matching,
i.e. first try the current shell branch, then fall back to master.
This should work for commits to upstream branches, but not for merge
requests to a stable branch. For those, the target branch name is
a better fallback.
https://gitlab.gnome.org/GNOME/gnome-shell/merge_requests/509
So far we are only performing a basic syntax check on javascript
sources; it's time to test the C code as well. As mutter is tightly
coupled, we bite the bullet and build it as well, either using a
matching branch (if it exists), or current master.
https://gitlab.gnome.org/GNOME/gnome-shell/merge_requests/408
