utils/agljobtemplate.py: Raise an error if jinja version is incorrect

The jinja2 template calls needs a jinja version >= 2.9. Otherwise fails
to create a correct output yaml file.

Check for the jinja version at runtime. More precisely, check for a
specific function that was added in 2.9 and raise an error if it does
not exist.

Change-Id: Ifd627a25dcfabdd639c53e1b29b891db8bff50c4
Signed-off-by: Loys Ollivier <lollivier@baylibre.com>

1 files changed, 4 insertions, 0 deletions

diff --git a/utils/agljobtemplate.py b/utils/agljobtemplate.py
index 381f7f4..90bad13 100644
--- a/utils/agljobtemplate.py
+++ b/utils/agljobtemplate.py
@@ -48,6 +48,10 @@ class Agljobtemplate(object):
     RFS_TYPE = ['nbd', 'ramdisk']
 
     def __init__(self, path=DEFAULT_PATH):
+        try:
+            from jinja2 import select_autoescape
+        except ImportError:
+            raise ImportError, "Please make sure your version of jinja2 is >= 2.9"
         self._template_path = os.path.normpath(path)
         if not (os.path.isdir(self._template_path) and os.access(self._template_path, os.F_OK)):
             raise OSError, "Cannot access {}".format(self._template_path)