[PATCH 2/2] tinfoil.py: Add shutdown method.

["Aníbal Limón" <anibal.limon@linux.intel.com>]

When run tinfoil in a loop it causing problems for don't
free resources like OS max fd exception.

Signed-off-by: Aníbal Limón <anibal.limon@linux.intel.com>
---
 lib/bb/tinfoil.py | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/lib/bb/tinfoil.py b/lib/bb/tinfoil.py
index 8fc9be3..5025e62 100644
--- a/lib/bb/tinfoil.py
+++ b/lib/bb/tinfoil.py
@@ -28,6 +28,7 @@ import bb.utils
 from bb.cooker import state, BBCooker, CookerFeatures
 from bb.cookerdata import CookerConfiguration, ConfigParameters
 import bb.fetch2
+from bb import BBHandledException
 
 class Tinfoil:
     def __init__(self, output=sys.stdout, tracking=False):
@@ -84,6 +85,13 @@ class Tinfoil:
             else:
                 self.parseRecipes()
 
+    def shutdown(self):
+        try:
+            self.cooker.shutdown()
+            self.cooker.updateCache()
+        except BBHandledException:
+            pass
+
 class TinfoilConfigParameters(ConfigParameters):
 
     def __init__(self, **options):
-- 
1.9.1