ci: add basic integration test for pmb

Yes, I know this is crude/basic, but others are welcome to improve it later. I think we need some integration testing asap, and this is better than nothing :D

.ci/integration.sh

@@ -3,25 +3,30 @@
 set -x
 
 if [ "$(id -u)" = 0 ]; then
-	exec su "${TESTUSER:-pmos}" -c "sh -e $0"
+	exec su "${TESTUSER:-build}" -c "sh -e $0"
 fi
 
 pmaports="$(cd "$(dirname "$0")"/..; pwd -P)"
 # Make sure that the work folder format is up to date, and that there are no
 # mounts from aborted test cases (pmbootstrap#1595)
-pmbootstrap work_migrate
-pmbootstrap config aports "$pmaports"
-pmbootstrap -q shutdown
+echo "Initializing pmbootstrap"
+yes '' | ./pmbootstrap.py --details-to-stdout init
+
+./pmbootstrap.py work_migrate
+# ./pmbootstrap.py config aports "$pmaports"
+./pmbootstrap.py -q shutdown
 
 # TODO: make device configurable?
 device="qemu-amd64"
 # TODO: make UI configurable?
 ui="phosh"
-pmbootstrap config device "$device"
-pmbootstrap config ui "$ui"
+./pmbootstrap.py config device "$device"
+./pmbootstrap.py config ui "$ui"
 
+# NOTE: --no-image is used because building images makes pmb try to
+# "modprobe loop". This fails in CI.
 echo "Building $ui image for $device"
-pmbootstrap -y install --zap --password 147147
+./pmbootstrap.py -y install --zap --password 147147 --no-image
 
 echo "Building $ui image for $device, with FDE"
-pmbootstrap -y install --zap --password 147147 --fde
+./pmbootstrap.py -y install --zap --password 147147 --fde --no-image