checklayer: new function get_layer_dependencies()

Split add_layer_dependencies() into 2 parts. First search for layer
dependencies, and then add them to the config. That allows us to
call get_layer_dependencies() independently.

Signed-off-by: Nicolas Dechesne <nicolas.dechesne@linaro.org>
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
(cherry picked from commit 08edf928aac3f2daaa0c256d4c21e56e2db72bff)
Signed-off-by: Anuj Mittal <anuj.mittal@intel.com>

diff --git a/scripts/lib/checklayer/__init__.py b/scripts/lib/checklayer/__init__.py
index fe545607bb4c2bd02e098b0c523ee69a5f019785..72d9df0a62758f121345086476cad70759a3bf54 100644 (file)
--- a/scripts/lib/checklayer/__init__.py
+++ b/scripts/lib/checklayer/__init__.py
@@ -156,7 +156,7 @@ def _find_layer_depends(depend, layers):
                 return layer
     return None
 
-def add_layer_dependencies(bblayersconf, layer, layers, logger):
+def get_layer_dependencies(layer, layers, logger):
     def recurse_dependencies(depends, layer, layers, logger, ret = []):
         logger.debug('Processing dependencies %s for layer %s.' % \
                     (depends, layer['name']))
@@ -203,6 +203,11 @@ def add_layer_dependencies(bblayersconf, layer, layers, logger):
         layer_depends = recurse_dependencies(depends, layer, layers, logger, layer_depends)
 
     # Note: [] (empty) is allowed, None is not!
+    return layer_depends
+
+def add_layer_dependencies(bblayersconf, layer, layers, logger):
+
+    layer_depends = get_layer_dependencies(layer, layers, logger)
     if layer_depends is None:
         return False
     else: