The variants.xml file can list a variant with is_empty="true" and no
groups. If such variant is found, not package gathering will be run for
it, and no repos will be created.
This only makes sense for a variant that will have some other
deliverables like live media or images.
Signed-off-by: Lubomír Sedlář <lsedlar@redhat.com>
These phases were computing checksums for images:
* buildinstall
* createiso
* image_build
* live_images
* product_img
In each phase the checksummed thing would ultimately end-up in image
manifest.
Signed-off-by: Lubomír Sedlář <lsedlar@redhat.com>