[bug#47163] [PATCH] refresh: Add '--installed' option.

["Léo Le Bouter via Guix-patches via" <guix-patches@gnu.org>]

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On Tue, 2021-03-16 at 13:58 +0100, zimoun wrote:
> Adding the manifest option to "guix lint", is it not enough?  I do
> not
> know how many packages you have in your operating-system definition
> but from my understanding your user-wide packages should be in
> manifest.scm files, and you could also maintain a manifest.scm file
> for your packages system-wide.  Anyway.
> 
> Here an example with an hard-coded path, saved in /tmp/manifest-from-
> os.scm:
> 
> --8<---------------cut here---------------start------------->8---
> (use-modules
>  (gnu system)
>  (guix profiles))
> 
> (define os
>   (load "/home/simon/src/guix/guix/gnu/system/examples/bare-
> bones.tmpl"))
> 
> (define pkgs (operating-system-packages os))
> 
> (packages->manifest pkgs)
> --8<---------------cut here---------------end--------------->8---
> 
> Then "guix refresh -m /tmp/manifest-from-os.scm" should do the job.
> Well, it is an example, the point is simply to show that an option is
> not necessary, IMHO.  However, a robust script could be in etc/ with
> some other tools and with a line in the manual.  Maybe. :-)
> It seems better to keep separated what operates on packages and what
> operates on system.
> 
> 
> Cheers,
> simon

You are right that looks great!

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