[PATCH v2] Fix wrong inline python in isar-image.bbclass

["Andreas J. Reichel" <andreas.reichel.ext@siemens.com>]

From: Andreas Reichel <andreas.reichel.ext@siemens.com>

The inline python string used a mixture of python
and shell, which failed while parsing recipes with:

The URL: '${@' is invalid and cannot be interpreted

Problem is that in

SRC_URI += "${@ 'file://${DISTRO_CONFIG_SCRIPT}' if '${DISTRO_CONFIG_SCRIPT}' else '' }"

${DISTRO_CONFIG_SCRIPT} is not interpreted correctly.
Use d.getVar instead.

Signed-off-by: Andreas Reichel <andreas.reichel.ext@siemens.com>
---
 meta/classes/isar-image.bbclass | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/meta/classes/isar-image.bbclass b/meta/classes/isar-image.bbclass
index 754e896..e221ba6 100644
--- a/meta/classes/isar-image.bbclass
+++ b/meta/classes/isar-image.bbclass
@@ -6,8 +6,14 @@
 inherit image
 inherit isar-bootstrap-helper
 
+def cfg_script(d):
+    cf = d.getVar('DISTRO_CONFIG_SCRIPT', True) or ''
+    if cf:
+        return 'file://' + cf
+    return ''
+
 FILESPATH =. "${LAYERDIR_isar}/conf/distro:"
-SRC_URI += "${@ 'file://${DISTRO_CONFIG_SCRIPT}' if '${DISTRO_CONFIG_SCRIPT}' else '' }"
+SRC_URI += "${@ cfg_script(d) }"
 
 DEPENDS += "${IMAGE_INSTALL} ${IMAGE_TRANSIENT_PACKAGES}"
 
-- 
2.20.1