[yocto] [PATCH 04/10][AUH] buildhistory.py: Don't modify BB_ENV_EXTRAWHITE before init.

[Aníbal Limón]

Move code for add BUILDHISTORY_DIR to __init__ method because
it fails when import in early step.

Signed-off-by: Aníbal Limón <anibal.limon at linux.intel.com>
---
 buildhistory.py | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/buildhistory.py b/buildhistory.py
index 1732f23..6eca6e1 100644
--- a/buildhistory.py
+++ b/buildhistory.py
@@ -30,11 +30,10 @@ from errors import *
 from bitbake import *
 from git import Git
 
-os.environ['BB_ENV_EXTRAWHITE'] = os.environ['BB_ENV_EXTRAWHITE'] + \
-                                    " BUILDHISTORY_DIR"
-
 class BuildHistory(object):
     def __init__(self, bb, pn, workdir):
+        os.environ['BB_ENV_EXTRAWHITE'] = os.environ['BB_ENV_EXTRAWHITE'] + \
+                                    " BUILDHISTORY_DIR"
         self.bb = bb
         self.pn = pn
         self.workdir = workdir
-- 
2.1.4