5:30 a.m.
On Thu, Feb 28, 2019 at 1:07 PM Marcin Sobczyk <msobczyk(a)redhat.com> wrote:
Hi,
On yesterday's vdsm weekly call, we were discussing the need of making
Python 3 vdsm RPM packages.
Some facts:
- it doesn't make a lot sense to spend much time on trying to package
everything - it's completely impossible i.e. to run vdsm without having
'sanlock' module
- our current vdsm.spec file is crap
Two non-exclusive propositions were raised:
- let's try to make a quick-and-dirty patch, that will completely
overwrite the existing 'vdsm.spec' (effectively making it Python 3-only)
for testing purposes, and maintain it for a while
- in the meantime, let's write a completely new, clean and beautiful
spec file in an package-by-package, incremental manner, (also Python
3-only) that would eventually substitute the original one
I'm not sure I understand that second option.
I am afraid of fresh starts; I'd very much prefer to start from the
sh*tty thing we have, and evolve it. A lot of time, re-writing a piece
of software is tempting, but existing code is imbued with knowledge of
past problems, which is often forgotten when you do a hard cut.
Cleaning %files should be an easy first step; I think that Gal's
jinja-based generation of py2/py3 packages is sane.
Can you explain why not just to carry these patches over?
>
> The quick-and-dirty spec file would be completely unsupported by CI. The
> new one would get a proper CI sub-stage in 'build-artifacts' stage.
>
> The steps needed to be done are:
>
> - prepare autotools/Makefiles to differentiate Python 2/Python 3 RPM builds
> - prepare the new spec file (for now including only 'vdsm-common' package)
> - split 'build-artifacts' stage into 'build-py27' and
'build-py36'
> sub-stages (the latter currently running on fc28 only)
>
> The only package we can start with, when making the new spec file, is
> 'vdsm-common', as it doesn't depend on anything else (or at least I hope
> so...).
>
> There were also propositions about how to change the new spec file in
> regard to the old one (like making 'vdsm' package a meta-package). This
> is a good time for these propositions to be raised, reviewed and
> documented (something like this maybe?
>
https://docs.google.com/document/d/13EXN1Iwq-OPoc2A5Y3PJBpOiNC10ugx6eCE72...),
> so we can align the new spec file as we build it.
>
> I can lay the groundwork by doing the autotools/Makefiles and
> 'build-artifacts' splitting. Gal Zaidman agreed on starting to work on
> the new spec file. Milan mentioned, that he had something like the
> quick-and-dirty patch, maybe he can share it with us.
>
> Questions, comments are welcome.
>
> Regards, Marcin
>
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