[libvirt] [PATCH v2] maint: Switch to xz compressed PAX release archives

[Andrea Bolognani]

On Wed, 2016-06-15 at 10:31 -0400, Laine Stump wrote:
> On 06/15/2016 09:03 AM, Andrea Bolognani wrote:
> > 
> > This allows us to produce releases that are roughly a third in
> > size, have no limitation on path length, and are still readable
> > by all supported platforms.
> > ---
> 
> I just want to point out that the tarfile is built every time you run 
> "make rpm" (which I do quite a lot - I prefer installing rpms to the 
> carnage created by make install), and this increases the time for make 
> rpm on my system by 1min38sec. (jtomko may have something to say about 
> that, since he's been interested in shaving fractions of a second off 
> the build time in the last few days :-O)
> 
> Am I going to need to carry a local patch to revert this so that I don't 
> get *even more* bored waiting for builds to complete? Or is there a 
> reasonable way to make it easily configurable with a switch to autogen? 
> (even then I would still need a patch to the specfile, unless we could 
> make it happen based on some environment setting).
> 
> (Aside from that, I applied the patch and it does work).

This might just be the perfect chance for you to start
running libvirtd from the build directory instead - that way,
you can save both the time needed to make dist and the time
needed to install the new rpm! :)

In all seriousness though, this is a reasonable concern,
thanks for bringing it up. I don't have any bright ideas on
how to make this configurable, short of pre-processing
configure.ac and libvirt.spec.in[1] in autogen.sh. Hopefully
someone else on the list will come up with a better plan -
it would be a shame not to take advantage of xz compression.


[1] Which would make them configure.ac.in and...
    libvirt.spec.in.in, I guess?
-- 
Andrea Bolognani
Software Engineer - Virtualization Team