The mechanisms here are a bit subtle and the kiwibuild phase
didn't quite get them right. The arg passed to `util.failable`
is supposed to be a boolean, but kiwibuild was passing it the
list of failable arches (which will always evaluate True).
How this is meant to work is that we only make *the Koji task
as a whole* failable (by passing `True` to `util.failable`) if
*all* the arches in it are failable. If *any* arch in the task
is not failable, the task should not be failable.
We allow a subset of arches to fail by passing the Koji task a
list of `optional_arches`, later. If an arch is 'optional', that
arch failing won't cause the Koji task itself to be considered
failed.
This commit fixes the logic (I hope), renames all the variables
and adds a couple of comments to make it clearer what's going on,
and does a bit of making the code simpler.
Signed-off-by: Adam Williamson <awilliam@redhat.com>
0d306d4964