Re: Superseded packages

[ludo@gnu.org (Ludovic Courtès)]

Leo Famulari <leo@famulari.name> skribis:

> On Sun, Sep 11, 2016 at 10:39:08PM +0200, Ludovic Courtès wrote:
>> > There are other incompatibilities, for example in the repository format.
>> > Borg provides a `borg upgrade` tool that performs a one-way conversion
>> > of Attic repos to Borg repos. Just creating an 'attic -> borg' alias
>> > would not be enough; any automated backup scripts would still fail.
>> 
>> Then I don’t know.  Either we mark Attic as superseded by Borg anyway,
>> or we need another mechanism to mark a package as “discouraged”?
>
> I've attached a patch that marks Attic as superseded by Borg. I'd like
> to put it on core-updates. That way, we can mention it in the release
> notes of the next Guix release, and hopefully people will notice the
> change.
>
> WDYT?

I think it could even go to ‘master’, but yes, we should mention it in
the next release notes.

> From 374f81963d3ba4ec4a5e48c12848032ca8085aaf Mon Sep 17 00:00:00 2001
> From: Leo Famulari <leo@famulari.name>
> Date: Tue, 20 Sep 2016 16:59:59 -0400
> Subject: [PATCH] gnu: attic: Superseded by borg.
>
> * gnu/packages/backup.scm (attic): Superseded by borg.
> * gnu/packages/python.scm (python-llfuse-0.41): Remove variable.

[...]

> +(define-public attic
> +  (package (inherit borg)
> +    (name "attic")
> +    (properties `((superseded . ,borg)))))

I was thinking that we could keep the ‘attic’ recipe as-is, only with
this extra ‘properties’ field.

That way, “guix package -u” and “guix package -i attic” would install
Borg, but people who insist could still run:

  guix package -e '(@ (gnu packages backup) attic)'

Thoughts?

Anyway, feel free to push whichever sounds best to you!

Thanks,
Ludo’.