libalpm/add.c: fix backup array issue

As seen with the recent upgrade of pacman and the removal of the
pacman.d/current mirrorlist, files that were formerly in the backup array
get deleted upon their removal, which could be dangerous. Instead, we should
use the combined backup array of the old and new package. This fix should
address this issue in a relatively straightforward way.

In addition, old files should be moved to pacsave locations as expected.

Signed-off-by: Dan McGee <dan@archlinux.org>

1 files changed, 1 insertions, 0 deletions

diff --git a/pactest/tests/upgrade023.py b/pactest/tests/upgrade023.py
index 68a29df2..d1d2e314 100644
--- a/pactest/tests/upgrade023.py
+++ b/pactest/tests/upgrade023.py
@@ -15,3 +15,4 @@ self.addrule("PKG_VERSION=dummy|1.1-1")
 self.addrule("!FILE_MODIFIED=etc/dummy.conf")
 # Do we want this pacnew or not?
 self.addrule("FILE_PACNEW=etc/dummy.conf")
+self.addrule("!FILE_PACSAVE=etc/dummy.conf")