Avoid infinite looping when walking artifact dep graph

Reported-By: Sam Thursfield

1 files changed, 3 insertions, 3 deletions

diff --git a/morphlib/artifact.py b/morphlib/artifact.py
index 3bb2a520..aef48d76 100644
--- a/morphlib/artifact.py
+++ b/morphlib/artifact.py
@@ -75,11 +75,11 @@ class Artifact(object):
         done = set()
         
         def depth_first(a):
-            for dep in a.dependencies:
-                for ret in depth_first(dep):
-                    yield ret
             if a not in done:
                 done.add(a)
+                for dep in a.dependencies:
+                    for ret in depth_first(dep):
+                        yield ret
                 yield a
 
         return list(depth_first(self))