[Nix-dev] why has each revision / generation not a own configuration.nix

[Profpatsch]

On 17-05-16 04:43pm, zimbatm wrote:
> How do you find back which git revision was used to produce a given NixOS
> profile?

In my case it’s built by a hydra and the system name contains a hash.

> 
> Maybe nixos-rebuild should be extended to include that in the revision
> name, and if the git repo is dirty.

You need to include all used paths.
So it’s probably best to write out a file like:

- <vuizvui>: 
    source: /home/philip/vuizvui
    type: git
    git:
      dirty: yes
      rev: 32847298abc
    hash:
      type: sha256
      hash: deadbeef

- <nixpkgs>:
    source: https://cache.nixos.org/…/nixpkgs.tar.gz
    type: tgz
    tgz:
      …
    hash:
      …

- system:
    source: user at machine
    type: arg
    arg:
      type: string
      val: "x86_64-linux"


Something like that.
YAML because I had to write it by hand.

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