a test for liminix-rebuild

it's hacky as Selby, but it's better than no test

tests/min-copy-closure/test-liminix-rebuild.sh

@@ -0,0 +1,58 @@
+# This is a test for liminix-rebuild. It's not a CI test because
+# liminix-rebuild calls nix-build so won't run inside a derivation,
+# meaning you have to remember to run it manually when changing
+# liminix-rebuild
+
+# nix-shell -p  expect socat --run "sh ./tests/min-copy-closure/test-liminix-rebuild.sh "
+
+. tests/test-helpers.sh
+
+set -e
+
+here=$(pwd)/tests/min-copy-closure
+top=$(pwd)
+
+work=$(mktemp -d -t "test-lim-rebuild-XXXXXX")
+echo $work
+cd $work
+
+deriv(){
+    (cd $top && nix-build -I liminix-config=${here}/config-ext4.nix  --arg device "import ./devices/qemu-armv7l" -A $1 );
+}
+
+PATH=$(deriv pkgs.pkgsBuildBuild.min-copy-closure)/bin:$(deriv pkgs.pkgsBuildBuild.run-liminix-vm)/bin:$PATH
+
+rootfs=$(deriv outputs.rootfs)
+kernel=$(deriv outputs.zimage)
+uboot=$(deriv outputs.u-boot)
+
+test -d ./vm && rm -rf vm
+mkdir ./vm
+
+cat ${rootfs} > rootfs
+
+truncate -s 24M rootfs
+resize2fs rootfs
+
+dd if=rootfs of=disk-image bs=512 seek=4 conv=sync
+echo '4,-,L,*' | sfdisk disk-image
+
+run-liminix-vm --background vm  \
+	       --command-line "console=ttyAMA0 panic=10 oops=panic loglevel=8 root=/dev/vda1 rootfstype=ext4" \
+	       --phram-address 0x50000000 --arch arm \
+	       --lan "user,hostfwd=tcp::2022-:22" \
+	       --flag -append --flag "root=/dev/vda1" --flag -hda \
+	       --flag disk-image $kernel /dev/null
+
+expect ${here}/wait-until-ready.expect
+echo "READY"
+
+touch known_hosts
+export SSH_COMMAND="ssh -o UserKnownHostsFile=${work}/known_hosts -o StrictHostKeyChecking=no -p 2022 -i ${here}/id"
+
+(cd ${top} && liminix-rebuild root@localhost -I liminix-config=${here}/with-figlet.nix  --arg device "import ./devices/qemu-armv7l")
+
+ls -l vm
+
+cd ${work} && expect $here/wait-for-reboot.expect
+cd / ; rm -rf $work