[yocto] [meta-swupd][PATCH 1/3] swupd-image.bbclass: don't fail parsing if SWUPD_BUNDLES is undefined

[André Draszik]

ERROR: Error for ...image.bb, dependency ${@' does not contain exactly one ':' character.
 Task 'depends' should be specified in the form 'packagename:task'
ERROR: Command execution failed: Exited with 1

Signed-off-by: André Draszik <git at andred.net>
---
 classes/swupd-image.bbclass | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/classes/swupd-image.bbclass b/classes/swupd-image.bbclass
index 771a416..d8383ff 100644
--- a/classes/swupd-image.bbclass
+++ b/classes/swupd-image.bbclass
@@ -322,7 +322,7 @@ addtask stage_swupd_inputs after do_swupd_list_bundle before do_swupd_update
 do_stage_swupd_inputs[dirs] = "${SWUPDIMAGEDIR} ${SWUPDMANIFESTDIR} ${DEPLOY_DIR_SWUPD}/maps/"
 do_stage_swupd_inputs[depends] += " \
     virtual/fakeroot-native:do_populate_sysroot \
-    ${@ ' '.join(['bundle-${SWUPD_IMAGE_PN}-%s:do_swupd_list_bundle' % x for x in '${SWUPD_BUNDLES}'.split()]) } \
+    ${@ ' '.join(['bundle-${SWUPD_IMAGE_PN}-%s:do_swupd_list_bundle' % x for x in (d.getVar('SWUPD_BUNDLES') or '').split()]) } \
 "
 
 python do_fetch_swupd_inputs () {
-- 
2.11.0