[arch-dev-public] keep config file on system when upgrading to package without the config file

[Dan McGee]

On Wed, Mar 17, 2010 at 11:55 AM, Aaron Griffin <aaronmgriffin at gmail.com> wrote:
> On Wed, Mar 17, 2010 at 8:03 AM, Daenyth Blank <daenyth+arch at gmail.com> wrote:
>> On Wed, Mar 17, 2010 at 06:27, Ronald van Haren <pressh at gmail.com> wrote:
>>> So the new package doesn't have the config file anymore and is now
>>> removing the old file (it seems it doesn't matter if the file is in
>>> the backup array or not). Any way around this so I can quickly fix
>>> this and people won't come in the grub shell upon next reboot ?
>>>
>>> Ronald
>>>
>> I don't think this is possible internally. One because it would leave
>> unmarked untracked files on /, secondly because internally an upgrade
>> is a remove+install
>
> I actually thought pacman USED to do this. If a file is in the backup
> array, and it is being removed, it is moved to .pacsav. Wasn't that
> the logic, or am I crazy?

Yeah, we have some complete lies being posted in this thread. I
haven't looked at the package in question but I don't buy that I've
heard the full truth here.

1. upgrade is not a remove+add, it does a hell of a lot more (ever try
to handle backed-up files moving between packages on a system update?
pacman does)
2. Config files in a backup array ****NEVER**** get deleted, except
for one case- you've never changed it and moving to either a version
of a package that doesn't have that file or uninstalling the package.
3. Files move to .pacsave if they are removed, never deleted (except
the condition above)
4. Please look at the pactest/tests/ directory in the pacman directory
if you want to see how backup file handling works with real examples.
In particular, remove010, remove011, remove020, remove021,
upgrade020-26, upgrade042, upgrade043, and upgrade045. (yes, there are
that many tests for this stuff)

-Dan