More rigorous Fuel environment check

get_env() used to raise an unhandled exception when reap.py was run on a
Fuel node which didn't yet have an environment set up.

Change-Id: I07c37db2d80e416d26fa4fb4907f4e438f1c44e5
Signed-off-by: Peter Barabas <peter.barabas@ericsson.com>

diff --git a/deploy/reap.py b/deploy/reap.py
index bf64d40..22a55e7 100755 (executable)
--- a/deploy/reap.py
+++ b/deploy/reap.py
@@ -92,8 +92,10 @@ class Reap(object):
 
     def get_env(self):
         env_list = parse(exec_cmd('fuel env'))
-        if len(env_list) > 1:
-            err('Not exactly one environment')
+        if len(env_list) == 0:
+            err('No environment deployed')
+        elif len(env_list) > 1:
+            err('More than 1 environment deployed')
         self.env = env_list[0]
         self.env_id = self.env[E['id']]