[Nix-dev] Nix 1.8 released

[Vladimír Čunát]

On 12/18/2014 12:06 AM, Tobias Geerinckx-Rice wrote:
> On 16 December 2014 at 18:56, Eelco Dolstra <eelco.dolstra at logicblox.com> wrote:
>>    • Nix now filters out Nix-specific ANSI escape sequences on standard error.
>>      They are supposed to be invisible, but some terminals show them anyway.
>
> Are these the "[q[p" sequences I see/saw in gnome-terminal and Hydra's
> tail-logs?

Yes.

> If so, I'm still seeing them on my Hydra web interface with Nix 1.8.
> Is this intentional? Is there any documentation describing their
> purpose? (Hardly important, but I'm a curious fellow.)

The purpose is to allow for hierarchical folding of the logs, e.g. see 
http://hydra.nixos.org/build/11861073/log

Maybe the change doesn't apply to hydra's raw/tail log output (I guess 
that's where you saw the sequences).


Vladimir


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