Nix expression [feature request]

[talbergs]

There usually is a ./contrib folder that contains some integration-like files.

Some nix expert may come along and help in with the idiomic way. But there is what worked for my flake.nix

{ config, pkgs, ... }:
let

  py3-with-deps-for-please = pkgs.python3.withPackages (ps: [ ps.typer ps.rich ]);
  py3-code-for-please = pkgs.fetchFromGitHub {
    rev = "390ecaeda5cad70b56f2b4ef64725c1d1a10a842";
    owner = "NayamAmarshe";
    repo = "please";
    hash = "sha256-U0wT6uZ9IV4lemMD9UVTSMvGeQ9h5l1TQ9gUiH/tlJc=";
  };
  please-cli = pkgs.writeShellScriptBin "please" ''
    ${pkgs.lib.getExe py3-with-deps-for-please} ${py3-code-for-please}/please/please.py $@
  '';

in

{

  config.users.users.mt.shell = pkgs.fish;

  config.environment.systemPackages = [
    please-cli 
  ];
}

I hope for someone to publish a correct package not only to AUR but also to nixpkgs

[tejing1]

Here's a much more idiomatic expression:

{ pkgs ? import <nixpkgs> {}
, poetry2nix ? pkgs.poetry2nix
, fetchFromGitHub ? pkgs.fetchFromGitHub
}:

poetry2nix.mkPoetryApplication {
  projectDir = fetchFromGitHub {
    owner = "NayamAmarshe";
    repo = "please";
    rev = "0.3.1";
    hash = "sha256-sQErUOGx+PXX6laqiRsJ5z3HEeEbWhlXkTIjipz1NcU=";
  };
  postPatch = "rm -r dist";
}

Note, however, that this uses IFD as stated (IFD isn't allowed in nixpkgs, among other issues). To avoid that, you'd need to keep a copy of the poetry.lock and pyproject.toml with the nix code and set

pyproject = ./pyproject.toml;
poetrylock = ./poetry.lock;

However if this lived in this repo, for example in contrib, then you could instead just set projectDir = ../.; instead of any of that.

[NobbZ]

For a "contrib" folder here, using poetry2nix is probably fine, though for any packaging attempt in nixpkgs I'd recommend the usage of buildPythonModule + format = "pyproject" and toPythonApplication at the top-level to increase sharability within the closure.