Save backup files with extension .pacsave.n

Teach pacman to save backup files with extension .pacsave.n, where n is a
positive integer. The current backup file shall be saved as <name>.pacsave,
while existing .pacsave.n files will be renamed to <name>.pacsave.n+1

Example:
1. You have subversion installed in your local repo. /etc/conf.d/svnserve
   is a file to be backed up. It contains local modifications

2. You remove subversion from your repo. /etc/conf.d/svnserve is backed up as
   /etc/conf.d/svnserve.pacsave

2. You install subversion again

3. You edit /etc/conf.d/svnserve

4. You remove subversion. The existing /etc/conf.d/svnserve.pacsave is renamed
   to /etc/conf.d/svnserve.pacsave.1 and /etc/conf.d/svnserve is backed up as
   /etc/conf.d/svnserve.pacsave

Signed-off-by: Pang Yan Han <pangyanhan@gmail.com>

Rebased from original email and adjusted for util-common usage.
Signed-off-by: Florian Pritz <bluewind@xinu.at>

Signed-off-by: Allan McRae <allan@archlinux.org>

1 files changed, 20 insertions, 0 deletions

diff --git a/test/pacman/tests/remove012.py b/test/pacman/tests/remove012.py
new file mode 100644
index 00000000..4274487d
--- /dev/null
+++ b/test/pacman/tests/remove012.py
@@ -0,0 +1,20 @@
+self.description = "Remove a package with a modified file marked for backup and has existing pacsaves"
+
+self.filesystem = ["etc/dummy.conf.pacsave",
+                   "etc/dummy.conf.pacsave.1",
+                   "etc/dummy.conf.pacsave.2"]
+
+p1 = pmpkg("dummy")
+p1.files = ["etc/dummy.conf*"]
+p1.backup = ["etc/dummy.conf"]
+self.addpkg2db("local", p1)
+
+self.args = "-R %s" % p1.name
+
+self.addrule("PACMAN_RETCODE=0")
+self.addrule("!PKG_EXIST=dummy")
+self.addrule("!FILE_EXIST=etc/dummy.conf")
+self.addrule("FILE_PACSAVE=etc/dummy.conf")
+self.addrule("FILE_EXIST=etc/dummy.conf.pacsave.1")
+self.addrule("FILE_EXIST=etc/dummy.conf.pacsave.2")
+self.addrule("FILE_EXIST=etc/dummy.conf.pacsave.3")