Work around unicode issues by re-encoding properties as utf-8

recipes.py

Index: recipes.py
diff --git a/recipes.py b/recipes.py
index 0626c1f356f2ef24611b9eab21b59192bc8d006c..56b28028432b4108b14b38e23f932d2a64c12b24 100755
--- a/recipes.py
+++ b/recipes.py
@@ -18,11 +18,18 @@ import subprocess
 import sys
 import tempfile
 
+# This is necessary to ensure that str literals are by-default assumed to hold
+# utf-8. It also makes the implicit str(unicode(...)) act like
+# unicode(...).encode('utf-8'), rather than unicode(...).encode('ascii') .
+reload(sys)
+sys.setdefaultencoding('UTF8')
+
 ROOT_DIR = os.path.dirname(os.path.abspath(__file__))
 sys.path.insert(0, ROOT_DIR)
 
 from recipe_engine import env
 from recipe_engine import arguments_pb2
+from recipe_engine import util as recipe_util
 from google.protobuf import json_format as jsonpb
 
 
@@ -232,6 +239,8 @@ def run(package_deps, args, op_args):
 
   properties['recipe'] = args.recipe
 
+  properties = recipe_util.strip_unicode(properties)
+
   os.environ['PYTHONUNBUFFERED'] = '1'
   os.environ['PYTHONIOENCODING'] = 'UTF-8'