[Nix-dev] hermetically sealed nixpkgs

[Tobias Geerinckx-Rice]

Hullo,

On 7 December 2015 at 05:44, Chris Forno <jekor at jekor.com> 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)
> * OpenSSL moved the 1.0.2d release to the "old" directory (breaking the URL)

Aside: if ‘old’ OpenSSL releases are consistently moved to a
predictable location, why isn't this included in `urls`?

Are fetch failures used as poor person's update notification? Does the
hash change?

Regards,

T G-R