buildserver: clean up secondary libvirt box image after rebuild
Boxes are stored in two places when using vagrant-libvirt:
-
vagrant box add
-> ~/.vagrant.d/boxes/buildserver/0/libvirt/ -
vagrant up
-> /var/lib/libvirt/images/buildserver_vagrant_box_image_0_box.img
If the second box is not cleaned up, then fdroid build
will continue to use the one from the second location, thereby ignoring the updated one at the first location. This keeps the second one around until the new box is ready in case fdroid build
is using it while this script is running.