Bundled Flash

[Jon Ciesla]

On Mon, Aug 26, 2013 at 12:36 AM, Panu Matilainen
<pmatilai at laiskiainen.org>wrote:

> On 08/24/2013 03:12 AM, Toshio Kuratomi wrote:
>
>> On Fri, Aug 23, 2013 at 02:28:23PM -0700, Adam Williamson wrote:
>>
>>> On Fri, 2013-08-23 at 23:15 +0200, Michael Scherer wrote:
>>>
>>> So anyway - I think we need some best practice on this. We definitely
>>> need a 'if you absolutely must change a directory into a symlink (or a
>>> file, or the same operations in the other direction), here's how you do
>>> it' snippet set. If folks could chip in with thoughts on misc's approach
>>> to doing this, that'd be great: Panu, do you see any problems? Know a
>>> better way? I tried the giant-lump-of-lua from
>>> https://bugs.launchpad.net/**rpm/+bug/633636/comments/3<https://bugs.launchpad.net/rpm/+bug/633636/comments/3>, but it throws a
>>> bunch of warnings when cleanup of the *old* package tries to remove all
>>> the files that are now no longer there, which is bad, and misc thinks
>>> it's bad in other ways, I believe. There are various other attempts to
>>> do this kind of operation spread through various packages in Fedora and
>>> out - moodle has some, for instance, xmvn has one, there are others I
>>> think that I don't have to hand right now.
>>>
>>>  +1 I was going to see if limburgher would push his recipe into an FPC
>> guideline but it seems that that method no longer works reliably.  it'll
>> be
>> interesting to hear what Panu says here but I think the FPC could live
>> with
>> the caveats if it had to.
>>
>
> What would make me most happy would be if Some Enterprising Party would
work out what actually does work with most versions of RPM and submit that
as an FPC draft, if only so I could improve my own packages. :)

-J


> Well the "classic" way of doing dir <-> symlink replacement is %pretrans
> -p <lua>, minimally something like the examples in
> https://lists.fedoraproject.**org/pipermail/devel/2013-**
> August/188304.html<https://lists.fedoraproject.org/pipermail/devel/2013-August/188304.html>,
> eg
>
> %pretrans -p <lua>
> st = posix.stat("<path to dir>")
> if st and st.type == "directory" then
>   os.execute("rm -rf <path to dir>")
> end
>
> That "recommendation" has not changed. What has changed in rpm 4.11.x is
> that
>
> a) Rpm detects attempts to change directory into something else, and
> attempts to change a directory symlink into a directory as conflicts.
> b) Rpm now emits warnings on removal of supposedly installed but
> non-existent files.
>
> The twist with a) is that yum does a test-transaction, in which case
> %pretrans is not executed so the conflict that would be resolved in a real
> transaction is present in the supposed-to-be-helpful test-transaction.
> Because of that, rpm now has a heuristic to ignore those conflicts if the
> package has a %pretrans script that could resolve the issue. If the
> heuristic isn't working (in all cases) then it needs revising, I just need
> exact reproducer case(s).
>
> b) is just a warning and doesn't affect the transaction result. Dunno if
> its possible to avoid it in this specific case but guess I could have a
> look.
>
>         - Panu -
>
>
>
>
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