[Nix-dev] dist-upgrade? define channel declaratively?

[Rok Garbas]

Hi Eelco,

> I'm not so fond of how that feature is implemented:
> 
> https://github.com/NixOS/nixpkgs/commit/a5992ad61b314104aff7e28a41ce101a1b0e7c35#commitcomment-14986820
> 
> so I may get rid of it for 16.03, before we end up having to maintain it forever.
> 

I really like this feature and already using it heavily.

I can agree that evaluating for the second time is not optimal, I hope there is
a better way to do this, but I would really be against removing the idea behind
the feature.

Usecases I'm solving with above solution are:
 - in one network servers running with different nixpkgs
 - place nixpkgs checkout (via fetchFromGitHub) inside nixos configuration, to
   make nixos configuration reproducable by just checking out my nixos
   configuration

Would you suggest different implementation to solve above problems?


--
Rok Garbas - http://www.garbas.si
-------------- next part --------------
A non-text attachment was scrubbed...
Name: not available
Type: application/pgp-signature
Size: 819 bytes
Desc: signature
Url : http://lists.science.uu.nl/pipermail/nix-dev/attachments/20160115/b1781506/attachment.bin