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* Importing package-overlay-for-Nix - How?
@ 2020-10-20  8:48 Danny Milosavljevic
  2020-10-21 12:59 ` Ludovic Courtès
  0 siblings, 1 reply; 2+ messages in thread
From: Danny Milosavljevic @ 2020-10-20  8:48 UTC (permalink / raw)
  To: guix-devel

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Hi,

since the Raspberry Pi open firmware effort has unstalled

  https://github.com/librerpi/rpi-open-firmware/

I want to eventually package it in Guix.

It turns out that there are already config files for nix in the project above.

And we have a nix importer in Guix.

How do I use it

  guix import nix

in order to import those packages?

See

https://github.com/librerpi/rpi-open-firmware/blob/master/bcm2835.nix
https://github.com/librerpi/rpi-open-firmware/blob/master/bootloader.nix
https://github.com/librerpi/rpi-open-firmware/blob/master/default.nix
https://github.com/librerpi/rpi-open-firmware/blob/master/netboot.nix
https://github.com/librerpi/rpi-open-firmware/tree/master/nix

for what I want to import.

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^ permalink raw reply	[flat|nested] 2+ messages in thread

* Re: Importing package-overlay-for-Nix - How?
  2020-10-20  8:48 Importing package-overlay-for-Nix - How? Danny Milosavljevic
@ 2020-10-21 12:59 ` Ludovic Courtès
  0 siblings, 0 replies; 2+ messages in thread
From: Ludovic Courtès @ 2020-10-21 12:59 UTC (permalink / raw)
  To: Danny Milosavljevic; +Cc: guix-devel

Hi,

Danny Milosavljevic <dannym@scratchpost.org> skribis:

> How do I use it
>
>   guix import nix
>
> in order to import those packages?

This importer has bitrot; it could probably be salvaged with some effort
from someone knowledgeable about today’s Nix (i.e., not me :-)):

  https://issues.guix.gnu.org/32339

Another option would be to delete it altogether: it only contributes a
tiny bit to the packaging effort.  Only a tiny bit because the difficult
part is written as Bash and/or Nix functions, which the importer cannot
“translate”.

Let’s look at the examples you give:

> https://github.com/librerpi/rpi-open-firmware/blob/master/bcm2835.nix

Could be imported, minus ‘preConfigure’.

> https://github.com/librerpi/rpi-open-firmware/blob/master/bootloader.nix

This is not a package but a NixOS “module” (akin to a Guix service
type).

> https://github.com/librerpi/rpi-open-firmware/blob/master/default.nix

This looks like a package collection (obfuscated, though).

> https://github.com/librerpi/rpi-open-firmware/blob/master/netboot.nix

Not a package but a “module” for a custom initrd.

> https://github.com/librerpi/rpi-open-firmware/tree/master/nix

Not sure what that is.

In short, the importer would save you 2mn of typing for the first file,
little more.

Thanks,
Ludo’.


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