Re: Dropping gzip-compressed substitutes

[Efraim Flashner]

On Tue, Feb 08, 2022 at 02:34:49PM +0100, Mathieu Othacehe wrote:
> 
> Hey Maxim,
> 
> Sound like a fine plan.
> 
> > 1.  Promptly set up both a blog post and a NEWS entry announcing the
> > support for gzip substitutes is about to be phased out from the build
> > farm (1 month notice), urging users to upgrade their daemon to a version
> >>= 1.1.0.
> 
> I addition, we could warn users with old daemons as proposed by Ludo &
> Ricardo. There's an attached patch here.
> 
> > -                   ;; TODO: Eventually, disable gzip, as discussed at
> > -                   ;; 
> > <https://lists.gnu.org/archive/html/guix-devel/2021-03/msg00333.html>.
> > -                   (compression '(("gzip" 9) ("lzip" 9) ("zstd" 19)))
> > +                   (compression '(("lzip" 9) ("zstd" 19)))
> >                     (cache-bypass-threshold cache-bypass-threshold)
> >                     (workers publish-workers)))
> 
> Nice.
> 
> > 3. Come up with a Guile script that is able to
> >
> >   a) Strip gzip-related metadata from the .narinfo guix-publish metadata
> >   files
> >   b) recompute and update their 'Signature' field.
> >
> > 4. Finally, 'rm -r /var/guix/publish/gzip' and free about 6.5 TiB of data.
> 
> I hope the script will be able to complete within a reasonable amount of
> time, but we cannot know before trying it out :).

I'm sure the internet is full of people who know if this is fastest, or
using find /var/guix/publish/gzip -delete or find ... -print0 | xargs -0
rm or something else :)


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Efraim Flashner   <efraim@flashner.co.il>   רנשלפ םירפא
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