shell.nix

{
  pkgsWith37 ? import (builtins.fetchTarball {
    # Branch: nixos-22.11
    url = "https://github.com/NixOS/nixpkgs/archive/96e18717904dfedcd884541e5a92bf9ff632cf39.tar.gz";
    sha256 = "0zw1851mia86xqxdf8jgy1c6fm5lqw4rncv7v2lwxar3vhpn6c78";
  }) {},
  python37_overlay ? self: super: { python37 = pkgsWith37.python37; },
  pkgs ? import (builtins.fetchTarball {
    # Branch: nixos-23.05
    url = "https://github.com/NixOS/nixpkgs/archive/9790f3242da2152d5aa1976e3e4b8b414f4dd206.tar.gz";
    sha256 = "1y6zipys4803ckvnamfljb8raglgkbz1fz1fg03cxp4jqiiva5s1";
  }) { overlays = [ python37_overlay ]; }
}:
pkgs.mkShell {
  name = "fawltydeps-env";
  buildInputs = with pkgs; [
    python37
    python38
    python39
    python310
    python311
    poetry
  ];
  shellHook = ''
    # This is needed to keep python3.7 working while in the same nix-shell
    # as a later python (see https://github.com/NixOS/nixpkgs/issues/88711
    # for more details):
    unset _PYTHON_HOST_PLATFORM
    unset _PYTHON_SYSCONFIGDATA_NAME

    poetry env use "${pkgs.python311}/bin/python"
    poetry install --sync --with=dev
    source "$(poetry env info --path)/bin/activate"
  '';
}