[Nix-dev] Override nix.maxJobs without editing hardware-configuration.nix?

Eelco Dolstra eelco.dolstra at logicblox.com
Wed Feb 18 11:25:21 CET 2015


Hi,

On 18/02/15 08:25, James Cook wrote:

> I can't set nix.maxJobs in configuration.nix, because it is set in
> hardware-configuration.nix:
> 
> error: The unique option `nix.maxJobs' is defined multiple times, in
> `/etc/nixos/hardware-configuration.nix' and
> `/etc/nixos/configuration.nix'.
> 
> Of course, I could work around this by editing
> hardware-configuration.nix, but then the change would be lost the next
> time I run nixos-generate-config. Is there a better way to do this?

This should work:

  nix.maxJobs = mkForce 4;

I guess the option definition in hardware-configuration.nix should be given a
lower priority to prevent this problem.

-- 
Eelco Dolstra | LogicBlox, Inc. | http://nixos.org/~eelco/


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