[debian-mysql] Bug#671115: Bug#671115: transition: mysql-5.5

[Nicholas Bamber]

Adam,
	I have long been wondering what the point of all the versioning is 
(apart from the shared library of course). I would vote for getting rid 
of it post-freeze.

	I think there have been two differences between the ubuntu and Debian 
transitions. The first is adding libssl-dev as a build dependency. It 
not being a build dependency caused a FTBS in some circumstances. Fixing 
put -lssl and -lcrypto in the mysq_config output with adjusting the 
dependencies accordingly. This caused a number of otehr packages to fail 
and I am working on removing -lssl and -lcrypto from the mysql_config 
output.

	The second difference is not I believe substantive. I changed Conflicts 
clauses to Breaks/Replaces as suggested by lintian.

Apart from the file clashes these clauses are there purely, AFAICS, 
because we version the binary packages. For example in ubuntu amarok had 
to change build dependencies from 5.1 to 5.5 and needs to do so in Debian.

	

On 19/05/12 16:51, Adam D. Barratt wrote:
> On Tue, 2012-05-08 at 06:18 -0700, Clint Byrum wrote:
>> On May 8, 2012, at 2:04, Julien Cristau<jcristau at debian.org>  wrote:
>>> On Tue, May  1, 2012 at 22:52:22 +0100, Nicholas Bamber wrote:
>>>> At some point we need to transition from mysql-5.1 to mysql-5.5. We
>>>> would like to do this before the freeze though we appreciate that time
>>>> is now short. We arrived at this position as the Debian MySQL Team became
>>>> increasingly understaffed. It is better now but not ideal.
> [...]
>> To be fair, this transition was already completed in Ubuntu and I
>> filed bugs against all packages that failed with patches. Most if not
>> all of these patches have been applied.
>>
>> I would expect this transition to go quite smoothly and just to
>> require rebuilds given the  experience we had in Ubuntu.
>
> The problem is that the recent set of php5 security updates are
> currently stuck in unstable, because they picked up a dependency on
> libmysqlclient18.
>
> For most library transitions, this wouldn't be such a big problem as we
> could push the new version of the source in and have britney keep the
> old library around in testing for as long as there were
> reverse-dependencies; indeed there was some hope that with mysql-5.5
> being a separate source package, this would be even easier as the two
> source packages could co-exist.
>
> However, it turns out that won't work - the 5.5 packages have:
>
> Breaks: mysql-client-5.1 (<<  5.5), mysql-server-5.1 (<<  5.5),
> mysql-server-core-5.1 (<<  5.5)
>
> and there are no versions of those packages with versions>= 5.5 (so I'm
> not entirely sure what the logic behind the version constraints is).
> Various -5.1 packages have versioned dependencies on other binaries from
> that source, which means we can't even mitigate the problem by adding
> Provides from the 5.5 packages.  Providing them as real transitional
> packages from the 5.5 source would probably work, unless there's some
> reason that's a crazy suggestion?
>
> (There's also a mysql-5.1 upload which can't migrate to testing, as
> britney is convinced that it needs mysql-5.5 to migrate first;
> presumably because the latter now provides the
> mysql-{client,common,server} binary packages in unstable.)
>
> Regards,
>
> Adam
>
>
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