[Development] Decrease amounth of delivered src packages

[Dmitry Shachnev]

On Wed, Feb 15, 2017 at 12:28:11PM +0100, Kevin Kofler wrote:
> I would kindly request you to at least use tar.xz (rather than tar.gz) for
> the tarballs. (What you use as the Windows format is something you need to
> sort out with the Windows people.) The fact that tar.gz is still the most
> downloaded is probably mostly out of habit, or maybe your download site is
> directing to them by default (which ought to be fixed anyway, even if you
> were to keep both). tar.gz has no advantage over tar.xz, it is just a lot
> larger. Switching to the tar.gz tarballs (from the tar.xz tarballs that are
> currently used) would increase the size of distributions' source packages
> (source RPM etc.) significantly.
>
> It is sad that the legacy gzip compression is living a renaissance due to
> automatic tarball exports from GitHub and the like producing only that
> format. It should finally be retired now that there are algorithms that are
> just as open and that compress significantly better. At least for projects
> like Qt that produce their own tarballs and are already able to produce xz-
> compressed ones, I see no reason whatsoever to switch back to the obsolete
> gzip.

+1, please leave tar.xz instead of tar.gz.

Users of all modern UNIX-like systems are able to decompress tar.xz, so .gz
has really no advantage over .xz.

--
Dmitry Shachnev
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