[Nix-dev] Concatenation of values

[Arseniy Seroka]

Super! That works, thank you.

-- 
Sincerely,
Arseniy Seroka



On 22 November 2015 04:20:27 Shea Levy <shea at shealevy.com> wrote:

> Hi Arseniy,
>
> The ordering of the concatenation is by default unspecified. You can
> put constraints on it with 'mkOrder', see
> https://github.com/NixOS/nixpkgs/blob/a2aab3a224939cc7c24e88984c5f5ab169aee271/lib/modules.nix#L464-L470
> for the details. So you can for example have the line that sets
> 'sessionCommands = "new lines of cfg";' instead set 'sessionCommands =
> mkAfter "new lines of cfg";'
>
> ~Shea
>
> On 2015-11-21 19:09, Arseniy Seroka wrote:
>> Hello!
>> For example we have
>> `services.xserver.displayManager.sessionCommands`.
>> If we enable slim then we have some lines added to it.
>> If we add something there in our `configuration.nix` then it appears
>> that our value is added before the value added by slim's config.
>> So the question is how does this mechanism works (concatenation of
>> values)
>> and how I can tell nix to do smth like "${old} + new lines of cfg"?
>>
>> --
>>
>> Sincerely,
>> Arseniy Seroka
>>
>> _______________________________________________
>> nix-dev mailing list
>> nix-dev at lists.science.uu.nl
>> http://lists.science.uu.nl/mailman/listinfo/nix-dev
>
> _______________________________________________
> nix-dev mailing list
> nix-dev at lists.science.uu.nl
> http://lists.science.uu.nl/mailman/listinfo/nix-dev