guix package -u . --do-not-upgrade

guix package -u . --do-not-upgrade

[Gottfried]

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Dear Guixers,

If I do a "guix package -u" and I don't want to upgrade some packages, 
how does my command look like?

guix package --upgrade . --do-not-upgrade emacs vlc knotes (Can I put 3 
after each other)

or

guix package --upgrade . --do-not-upgrade emacs | --do-not-upgrade vlc | 
--do-not-upgrade knotes

or

guix package --upgrade . --do-not-upgrade emacs . --do-not-upgrade vlc . 
--do-not-upgrade knotes

or still differently?

Gottfried

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Re: guix package -u . --do-not-upgrade

[Andreas Enge]

Am Tue, May 10, 2022 at 06:10:42PM +0000 schrieb Gottfried:
> guix package --upgrade . --do-not-upgrade emacs vlc knotes (Can I put 3
> after each other)

Yes, that works. (In any case, you can just give it a try. If you do not
like the result, you can always do a "guix package --roll-back"!)

Andreas

Re: guix package -u . --do-not-upgrade

[raingloom]

On Tue, 10 May 2022 20:20:30 +0200
Andreas Enge <andreas@enge.fr> wrote:

> Am Tue, May 10, 2022 at 06:10:42PM +0000 schrieb Gottfried:
> > guix package --upgrade . --do-not-upgrade emacs vlc knotes (Can I
> > put 3 after each other)  
> 
> Yes, that works. (In any case, you can just give it a try. If you do
> not like the result, you can always do a "guix package --roll-back"!)
> 
> Andreas
> 

You can't un-transfer the bytes though.  That matters on a metered
connection.

The better advice would be to run such commands with --dry-run, which
will print what would be done.
AFAIK it only downloads the list of substitutes, not any NARs.