The config can now additionally specify other variants whose repos will
be passed on to koji. The previous way of specifying extra repos is
still available, as is the automatic adding of repo for current variant.
Signed-off-by: Lubomír Sedlář <lsedlar@redhat.com>
Given a list of arches, koji can build multiple images in one go
(automatically starting children tasks for each one).
This causes a bunch of changes:
* The configuration no longer allows changing config based on
architecture, only variants are allowed. It is however possible to
filter which arches are used for the building in the variant.
* The configuration files for koji image-build are stored in
work/image-build/$variant (not split based on arch).
This patch also changes the option name that is passed to koji
image-build: the repos should be specified under key `repo` (without the
trailing slash).
Signed-off-by: Lubomír Sedlář <lsedlar@redhat.com>