[OE-core] [PATCH 1/2] oeqa/targetcontrol.py: Separate the matching of supported image fstypes from the resulting value check.

[Corneliu Stoicescu]

Because we used a bb.fatal call inside the get_image_fstype classmethod, this caused problems when accessed without instantiating the object with a valid bb environment.

Separating the matching part of the classmethod(that is usable by outside scripts) from the check of the resulting value.
The matching is done within a new classmethod and the latter keeps the old method name and internal functionality, this way we don't have to change any other target controllers code.

Signed-off-by: Corneliu Stoicescu <corneliux.stoicescu at intel.com>
---
 meta/lib/oeqa/targetcontrol.py | 11 +++++++++--
 1 file changed, 9 insertions(+), 2 deletions(-)

diff --git a/meta/lib/oeqa/targetcontrol.py b/meta/lib/oeqa/targetcontrol.py
index 1464bf4..cc582dd 100644
--- a/meta/lib/oeqa/targetcontrol.py
+++ b/meta/lib/oeqa/targetcontrol.py
@@ -77,14 +77,21 @@ class BaseTarget(object):
         return None
 
     @classmethod
-    def get_image_fstype(self, d, image_fstypes=None):
+    def match_image_fstype(self, d, image_fstypes=None):
         if not image_fstypes:
             image_fstypes = d.getVar('IMAGE_FSTYPES', True).split(' ')
         possible_image_fstypes = [fstype for fstype in self.supported_image_fstypes if fstype in image_fstypes]
         if possible_image_fstypes:
             return possible_image_fstypes[0]
         else:
-            bb.fatal("no possible image_fstype could not be determined. IMAGE_FSTYPES=\"%s\" and supported_image_fstypes=\"%s\": " % (', '.join(map(str, image_fstypes)), ', '.join(map(str, self.supported_image_fstypes))))
+            return None
+
+    def get_image_fstype(self, d):
+        image_fstype = self.match_image_fstype(d)
+        if image_fstype:
+            return image_fstype
+        else:
+            bb.fatal("IMAGE_FSTYPES should contain a Target Controller supported image fstype: %s " % ', '.join(map(str, self.supported_image_fstypes)))
 
     def restart(self, params=None):
         self.stop()
-- 
1.8.3.2