[arch-general] Suggestion: switch to zstd -19 for compressing packages over xz

[Jelle van der Waa]

On 03/16/19 at 10:59pm, Jonathon Fernyhough wrote:
> On 16/03/2019 13:24, Ralph Corderoy wrote:
> > suggest replacing xz with lzip as xz has quite a few flaws in its file format.
> 
> I seem to remember that this has been debunked/ruled out as irrelevant
> to package distribution every time it has been proposed to Debian, e.g.
> it even has worse decompression times then xz.

Apart from that, we have other important factors:

* Is the archiving format reproducible, this is important for
  reproducible builds
* zstd has been discussed in #archlinux-pacman some time ago but no
  descision has been taken yet.

To be quite honest I don't believe this is one of the most pressing
issues in Arch :)
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