How to find a package file from substitute servers

How to find a package file from substitute servers

[Pan Xie]

Hello

I ask this question because I encounter a very mundane problem: I want
to use the `at' command on my GuixSD system.

Like what I always do on Archlinux, the first step is to find out which
package includes the `at' command:

#+begin_example
pacman -Fx bin/at$
usr/bin/at is owned by extra/at 3.2.5-2
#+end_example

Then I'll install the package, and so on.

Unfortunately, I can't find a way to do the similar thing on GuixSD. I
know there is a “guix locate” to find files from store items, but
those store items must be already present in my gnu store.

So how to query such informations from a substitute server? Will Guix
plan to add a package file database in the future?

Thanks

Pan

Re: How to find a package file from substitute servers

[Ludovic Courtès]

Hello,

Pan Xie <xiepan@skyguard.com.cn> skribis:

> Unfortunately, I can't find a way to do the similar thing on GuixSD. I
> know there is a “guix locate” to find files from store items, but
> those store items must be already present in my gnu store.

There’s a plan to allow ‘guix locate’ to download a file database from
the build farm (for example) but unfortunately that has yet to become a
reality.  So for now, there’s now built-in way to fetch such a database.

Ludo’.