[Pkg-samba-maint] Bug#878612: please drop dependency on python-talloc from samba-libs

[Matthias Klose]

On 15.10.2017 07:23, Andrew Bartlett wrote:
> (re-send on new bug for python-talloc subtask)
> 
> On Sat, 2017-10-14 at 20:40 -0400, Daniel Kahn Gillmor wrote:
>> Control: clone 781913 -1
>> Control: retitle -1 please drop dependency on python-talloc from samba-libs
>> Control: affects -1 + mpd
>>
>> On Sat 2015-04-04 22:10:14 +0200, Matthias Klose wrote:
>>> On 04/04/2015 08:47 PM, Jelmer Vernooij wrote:
>>>> So if we could move that functionality out to a separate library that
>>>> is not included with samba-libs, we could drop the dependency on
>>>> python2 in samba-libs.
>>>
>>> right, that would get rid off python libs and python-talloc.  However there is
>>> another path in that nautilus-share depends on samba-common | samba-common-bin,
>>> which depend on python-samba.
>>
>> Please don't block fixing this python2 dependency of samba-libs on
>> fixing the other python2 issues in samba-common and samba-common-bin.
>> there are other packages (e.g. mpd) that Depend: samba-libs and do not
>> have this additional dependency.
>>
>> Fixing the dependency of samba-libs on python-talloc in its own right
>> would be a win for minimal systems that run mpd but don't want to carry
>> around an unnecessary python interpreter.
> 
> Even this is a significant amount of work.  The challenge with
> splitting up samba-libs is that there are a lot of libraries which
> depend on each other.  Early Samba4 packages did split things into one
> package per library, but it became unmanagable. 
> 
> One possible approach would be to create a samba-base-libs which
> contains the things libsmbclient depends on, which hopefully does not
> include python-talloc. 
> 
> The alternate, removing just the python dependency from samba-libs
> would require more work I think, plus removing or re-structuring the
> code in source4/libnet/provision.c that calls into python (rather than
> python calling Samba, which is otherwise the pattern). 
> 
> I hope this helps.  I do need to make clear that we need significant
> help if you wish to see progress here, plus work may be needed upstream
> to change the libraries the build system produces.  On the hopeful
> side, upstream Samba did merge patches to allow a build without linking
> to python recently. 

fyi
https://src.fedoraproject.org/rpms/samba/blob/master/f/samba.spec

so this looks like the way forward to me, already building the stuff with
Python3 which can be built, and keeping some bits with Python2.

So I think, I'll start again to build python3 packages for talloc, ldb, tdb
first ...

Matthias