From r|p|ey @end|ng |rom @t@t@@ox@@c@uk  Tue Sep 12 07:39:47 2023
From: r|p|ey @end|ng |rom @t@t@@ox@@c@uk (Prof Brian Ripley)
Date: Tue, 12 Sep 2023 06:39:47 +0100
Subject: [Rd] 
 FYI: daily R source tarballs from ETH: *.xz instead of *.bz2)
In-Reply-To: <27378572-a2e2-eb29-1e7d-9c8d7020bd3a@gmail.com>
References: <25851.9552.398085.384361@stat.math.ethz.ch>
 <27378572-a2e2-eb29-1e7d-9c8d7020bd3a@gmail.com>
Message-ID: <f84b708a-6ddd-4c02-a97c-8a1331768444@stats.ox.ac.uk>

On 09/09/2023 01:56, Herv? Pag?s wrote:
> Hi Martin,
> 
> Sounds good. Are there any plans to support the xz compression for
> package source tarballs?

What makes you think it is not supported?

R CMD INSTALL happily installs .tar.xz files, and the name is not used 
to detect compression so .tar.gz files could be bzip2- or xz-compressed.

Note that tarball compression is pretty much irrelevant where the 
tarball contains large compressed files, for example .rda files or 
vendor.tar.xz files of Rust sources.  You have to arrange that the first 
compression is the bast possible.

-- 
Brian D. Ripley,                  ripley at stats.ox.ac.uk
Emeritus Professor of Applied Statistics, University of Oxford



[Rd] FYI: daily R source tarballs from ETH: *.xz instead of *.bz2)
Prof Brian Ripley