[Nix-dev] hermetically sealed nixpkgs

[Domen Kožar]

see https://nixos.org/wiki/Download_all_sources

On Tue, Dec 15, 2015 at 11:59 AM, Roger Qiu <roger.qiu at polycademy.com>
wrote:

> Would you rather freeze the dependencies as part of whatever you're
> building, or have a persistent mirror (IPFS) of all packages that Nix ever
> makes available?
>
>
> On 7/12/2015 3:44 PM, Chris Forno wrote:
>
> How would you go about (pre)fetching every source in the nixpkgs tree? How
> large would you estimate the result to be (number of archives/space on
> disk)?
>
> In the last couple days:
>
> * GNU bash silently updated patch 42 (
> <https://github.com/NixOS/nixpkgs/issues/11475>
> https://github.com/NixOS/nixpkgs/issues/11475)
> * OpenSSL moved the 1.0.2d release to the "old" directory (breaking the
> URL) (
> https://github.com/NixOS/nixpkgs/commit/51a5f49d700890a93c36dd50e5eca4bf6ee6966b
> )
>
> These kind of breakages introduced by the external world erode the promise
> of Nix that attracted me as a developer: reproducible builds into the
> future. In this respect alone, Nix + a fixed nixpkgs checkout provides
> little/no advantage over building in a VM: both work indefinitely as long
> as you don't introduce new dependencies.
>
> I intend to build/test a sort of hermetically sealed Nix where all
> dependencies are frozen in time (saved somewhere). I suspect I'm not alone
> in wanting this (
> <http://permalink.gmane.org/gmane.linux.distributions.nixos/18611>
> http://permalink.gmane.org/gmane.linux.distributions.nixos/18611). I'd
> appreciate any tips/guidance/references to related work before I begin.
>
>
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