[Nix-dev] Temporarily not using ~/.nixpkgs/config.nix

[Eike]

Oh, thank you! and sorry for not doing the grep myself… :/ 

Linus Heckemann <acc at sphalerite.org> writes:

> On 26/03/17 16:30, Eike wrote:
>> Is there a way to temporarily disable evaluating ~/.nixpkgs/config.nix?
>> I looked at http://nixos.org/nixpkgs/manual/#chap-packageconfig, but
>> couldn't find anything related.
>
> See pkgs/top-level/impure.nix (found by grepping nixpkgs for
> .nixpkgs/config.nix):
>
>> config ? let
>>     configFile = getEnv "NIXPKGS_CONFIG";
>>     configFile2 = homeDir + "/.config/nixpkgs/config.nix";
>>     configFile3 = homeDir + "/.nixpkgs/config.nix"; # obsolete
>>   in
>>     if configFile != "" && pathExists configFile then import configFile
>>     else if homeDir != "" && pathExists configFile2 then import configFile2
>>     else if homeDir != "" && pathExists configFile3 then import configFile3
>>     else {}
>
> If you set the environment variable NIXPKGS_CONFIG to point to a file
> containing simply {} that should hopefully help.
>
> Linus
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