[RFC v2 18/19] rootfs: remove temporary sstate deploy directory after task execution

["'Felix Moessbauer' via isar-users" <isar-users@googlegroups.com>]

The rootfs_install_sstate_prepare currently leaves an empty directory
skeleton behind. As this does not have any value for debugging, we
remove it.

Signed-off-by: Felix Moessbauer <felix.moessbauer@siemens.com>
---
 meta/classes-recipe/rootfs.bbclass | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/meta/classes-recipe/rootfs.bbclass b/meta/classes-recipe/rootfs.bbclass
index 7570942a..07dd415c 100644
--- a/meta/classes-recipe/rootfs.bbclass
+++ b/meta/classes-recipe/rootfs.bbclass
@@ -663,6 +663,8 @@ rootfs_install_sstate_prepare() {
     # tar --one-file-system will cross bind-mounts to the same filesystem,
     # so we use some mount magic to prevent that
     mkdir -p ${WORKDIR}/mnt/rootfs
+    trap 'rmdir ${WORKDIR}/mnt/rootfs ${WORKDIR}/mnt' EXIT
+
     run_privileged_heredoc <<'EOF' 3> rootfs.tar
         mount -o bind,private '${ROOTFSDIR}' '${WORKDIR}/mnt/rootfs' -o ro
         lopts="--one-file-system --exclude=var/cache/apt/archives"
-- 
2.51.0

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