1 files changed, 14 insertions, 0 deletions
diff --git a/morphlib/morphset.py b/morphlib/morphset.py
index a4cb5dae..17c9cdc4 100644
--- a/morphlib/morphset.py
+++ b/morphlib/morphset.py
@@ -244,3 +244,17 @@ class MorphologySet(object):
             return True
 
         self.traverse_specs(process_chunk_spec, wanted_chunk_spec)
+
+    def unpetrify_all(self):
+        '''If a spec is petrified, unpetrify it.
+
+        '''
+
+        def wanted_spec(m, kind, spec):
+            return ('unpetrify-ref' in spec and
+                    morphlib.git.is_valid_sha1(spec.get('ref')))
+        def process_spec(m, kind, spec):
+            spec['ref'] = spec.pop('unpetrify-ref')
+            return True
+
+        self.traverse_specs(process_spec, wanted_spec)