GNU bug report logs - #31592
Add Singularity and squashfs image support to guix pack.

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Message #32 received at 31592 <at> debbugs.gnu.org (full text, mbox):

From: Ricardo Wurmus <ricardo.wurmus <at> mdc-berlin.de>
To: Ludovic Courtès <ludovic.courtes <at> inria.fr>
Cc: 31592 <at> debbugs.gnu.org
Subject: Re: [bug#31592] [PATCH 2/4] gnu: Add singularity.
Date: Sun, 27 May 2018 20:14:34 +0200

Ludovic Courtès <ludovic.courtes <at> inria.fr> writes:

> Ricardo Wurmus <ricardo.wurmus <at> mdc-berlin.de> skribis:
>
>> * gnu/packages/linux.scm (singularity): New variable.
>
> [...]
>
>> +    (propagated-inputs
>> +     `(("squashfs-tools" ,squashfs-tools)))
>
> Could we patch the code that invokes mksquashfs to use an absolute file
> name?  That way we wouldn’t need to propagate it.

Maybe.  It uses a shell function “singularity_which” to find it in the
PATH at runtime.  I don’t know in how many places this is done, but I
can try to patch all instances to use the absolute file name.

>> +    (home-page "https://singularity.lbl.gov/")
>> +    (synopsis "Container platform")
>> +    (description "Singularity is a container platform supporting a number of
>> +container image formats.")
>
> Would be nice to expound a little bit, like mentioning that it can
> be used to build images, to run code from Docker images, etc.

True.  I tried to get information on features from the Singularity
website, but it’s all very vague and uses too many marketing phrases.
I’ll try to come up with a better description.

--
Ricardo

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