From 2558895ab5657f2b1040a675604a41fce82e8b56 Mon Sep 17 00:00:00 2001
From: =?utf8?q?Karl=20Hasselstr=C3=B6m?= <kha@treskal.com>
Date: Tue, 29 Jan 2008 00:11:59 +0100
Subject: [PATCH] Teach new infrastructure to diff two trees
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Nothing uses this yet, but "stg edit" will soon.

Signed-off-by: Karl Hasselström <kha@treskal.com>
---
 stgit/lib/git.py | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/stgit/lib/git.py b/stgit/lib/git.py
index 45879df..d75f724 100644
--- a/stgit/lib/git.py
+++ b/stgit/lib/git.py
@@ -356,6 +356,11 @@ class Repository(RunWithEnv):
                 return None
         finally:
             index.delete()
+    def diff_tree(self, t1, t2, diff_opts):
+        assert isinstance(t1, Tree)
+        assert isinstance(t2, Tree)
+        return self.run(['git', 'diff-tree', '-p'] + list(diff_opts)
+                        + [t1.sha1, t2.sha1]).raw_output()
 
 class MergeException(exception.StgException):
     pass
-- 
2.11.0