Properly unpack dependencies into the staging area in build-single.

This requires build-single to take a dependency context tuple when
building chunks of a stratum. This context tuple is the surrounding
stratum which is used to construct the dependency graph in the worker
and then do a breadth-first search to collect all dependencies that need
to be added to the staging area.

Implementing this required a few hash/eq changes in Blob, Morphology
and Treeish as well as a few adjustments in the corresponding unit
tests.

1 files changed, 7 insertions, 0 deletions

diff --git a/morphlib/morphology.py b/morphlib/morphology.py
index 2b8c0551..734c4e3d 100644
--- a/morphlib/morphology.py
+++ b/morphlib/morphology.py
@@ -108,6 +108,13 @@ class Morphology(object):
     def test_stories(self):
         return self._dict.get('test-stories', [])
 
+    def __eq__(self, other):
+        return (self.filename == other.filename and
+                self.treeish == other.treeish)
+
+    def __hash__(self):
+        return hash((self.filename, self.treeish))
+
     def __str__(self): # pragma: no cover
         return '%s|%s|%s' % (self.treeish.original_repo,
                              self.treeish.ref,