Have a default 'chunks' field in a chunk morphology

3 files changed, 3 insertions, 1 deletions

diff --git a/morphlib/artifactresolver.py b/morphlib/artifactresolver.py
index 25836b41..a458f52a 100644
--- a/morphlib/artifactresolver.py
+++ b/morphlib/artifactresolver.py
@@ -243,7 +243,7 @@ class ArtifactResolver(object):
         return artifacts
 
     def _chunk_artifact_names(self, source):
-        if 'chunks' in source.morphology:
+        if len(source.morphology['chunks']) > 0:
             return sorted(source.morphology['chunks'].keys())
         else:
             return [source.morphology['name']]
diff --git a/morphlib/morph2.py b/morphlib/morph2.py
index dbbf0c68..b5517f46 100644
--- a/morphlib/morph2.py
+++ b/morphlib/morph2.py
@@ -31,6 +31,7 @@ class Morphology(object):
         ('build-commands', []),
         ('test-commands', []),
         ('install-commands', []),
+        ('chunks', {}),
         ('sources', []),
         ('strata', []),
         ('max-jobs', None),
diff --git a/morphlib/morph2_tests.py b/morphlib/morph2_tests.py
index 65ab89cf..6cda67df 100644
--- a/morphlib/morph2_tests.py
+++ b/morphlib/morph2_tests.py
@@ -38,6 +38,7 @@ class MorphologyTests(unittest.TestCase):
         self.assertEqual(m['test-commands'], [])
         self.assertEqual(m['install-commands'], [])
         self.assertEqual(m['max-jobs'], None)
+        self.assertEqual(m['chunks'], {})
 
     def test_makes_max_jobs_be_an_integer(self):
         m = Morphology('''