Preinstall the devroot into the SDK images

Debos doesn’t support overlaying tarballs containing device nodes
and other special files, meaning we have to use tar here.

Signed-off-by: Andrej Shadura <andrew.shadura@collabora.co.uk>

apertis-image-sdk.yaml

@@ -3,6 +3,7 @@
 {{ $mirror := or .mirror "https://repositories.apertis.org/apertis/" }}
 {{ $suite := or .suite "18.06" }}
 {{ $timestamp := or .timestamp "00000000.0" }}
+{{ $imageroot := or .imageroot "https://images.apertis.org/daily/$suite/$timestamp" }}
 {{ $ospack := or .ospack (printf "ospack_%s-%s-%s_%s" $suite $architecture $type $timestamp) }}
 {{ $image := or .image (printf "apertis-%s-%s-%s_%s" $suite  $type $architecture $timestamp) }}
 
@@ -12,6 +13,9 @@
 
 {{ $size := or .size "20G" }}
 {{ $ivitools := or .ivitools "enabled" }}
+{{ $devroot := or .devroot "enabled" }}
+{{ $devroot_arch := or .devroot_arch "armhf" }}
+{{ $devpack := or .devpack (printf "ospack_%s-%s-%s_%s" $suite $devroot_arch "devroot" $timestamp) }}
 
 architecture: {{ $architecture }}
 
@@ -103,6 +107,24 @@ actions:
     script: scripts/clone-sample-repos.sh
   {{ end }}
 
+  {{ if eq $devroot "enabled" }}
+  - action: download
+    description: Fetch the devroot ospack
+    url: {{ $imageroot }}/{{ $timestamp }}/{{ $devroot_arch }}/devroot/{{ $devpack }}.tar.gz
+    name: devpack
+    filename: devpack.tar.gz
+
+  - action: run
+    description: Create the devroot directory
+    chroot: false
+    command: mkdir -p "${ROOTDIR}/opt/devroot"
+
+  - action: run
+    description: Unpack the devroot ospack
+    chroot: false
+    command: tar --extract -C "${ROOTDIR}/opt/devroot" -f devpack.tar.gz
+  {{ end }}
+
   - action: run
     description: List files on {{ $image }}
     chroot: false