Using delete_patch while deleting a branch is broken

"stg branch --force --delete" takes forever, and often leaves the
repository in a broken state.  The reason for this is the use of
stack.delete_patch() to delete the patches before removing the series.

The problem is delete_patch() will try to pop the patches, which changes
the head link.  After the branch deletion is complete, HEAD will point to
.git/refs/heads/current-branch, but the contents of current-branch will be
the old base of the deleted branch.

Signed-off-by: Chuck Lever <cel@netapp.com>

diff --git a/stgit/stack.py b/stgit/stack.py
index 7c6677dae065dfdaafb3121b8bcfbaa909d7fc3d..18b4c6e730c8a5082d7da586f2205adae9c34c9c 100644 (file)
--- a/stgit/stack.py
+++ b/stgit/stack.py
@@ -427,9 +427,8 @@ class Series:
             if not force and patches:
                 raise StackException, \
                       'Cannot delete: the series still contains patches'
-            patches.reverse()
             for p in patches:
-                self.delete_patch(p)
+                Patch(p, self.__patch_dir).delete()
 
             if os.path.exists(self.__applied_file):
                 os.remove(self.__applied_file)