[PATCH v2 3/3] lib/oe/image.py: Handle compressed IMAGE_TYPEDEP values

[Otavio Salvador <otavio@ossystems.com.br>]

When computing the dependency graph for the image generation, we need
to take into account the compression type and identify the base type
it relates to. This allow for a more robust graph generation even when
using composed image types.

Signed-off-by: Otavio Salvador <otavio@ossystems.com.br>
---
 meta/lib/oe/image.py | 18 ++++++++++++++++--
 1 file changed, 16 insertions(+), 2 deletions(-)

diff --git a/meta/lib/oe/image.py b/meta/lib/oe/image.py
index 7e080b0..f9c8f84 100644
--- a/meta/lib/oe/image.py
+++ b/meta/lib/oe/image.py
@@ -48,11 +48,13 @@ class ImageDepGraph(object):
         graph = dict()
 
         def add_node(node):
+            base_type = self._image_base_type(node)
             deps = (self.d.getVar('IMAGE_TYPEDEP_' + node, True) or "")
-            if deps != "":
+            base_deps = (self.d.getVar('IMAGE_TYPEDEP_' + base_type, True) or "")
+            if deps != "" or base_deps != "":
                 graph[node] = deps
 
-                for dep in deps.split():
+                for dep in deps.split() + base_deps.split():
                     if not dep in graph:
                         add_node(dep)
             else:
@@ -72,6 +74,18 @@ class ImageDepGraph(object):
         for item in remove_list:
             self.graph.pop(item, None)
 
+    def _image_base_type(self, type):
+        ctypes = self.d.getVar('COMPRESSIONTYPES', True).split()
+        if type in ["vmdk", "live", "iso", "hddimg"]:
+            type = "ext3"
+        basetype = type
+        for ctype in ctypes:
+            if type.endswith("." + ctype):
+                basetype = type[:-len("." + ctype)]
+                break
+
+        return basetype
+
     def _compute_dependencies(self):
         """
         returns dict object of nodes with [no_of_depends_on, no_of_depended_by]
-- 
2.1.3