template-python/flake.nix at main · furedea/template-python · GitHub

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{
  description = "";

  inputs = {
    nixpkgs.url = "github:NixOS/nixpkgs/nixpkgs-26.05-darwin";
    nixpkgs-unstable.url = "github:NixOS/nixpkgs/nixpkgs-unstable";
  };

  outputs =
    { nixpkgs, nixpkgs-unstable, ... }:
    let
      systems = [
        "aarch64-darwin"
        "x86_64-linux"
      ];
      forAllSystems = nixpkgs.lib.genAttrs systems;
    in
    {
      devShells = forAllSystems (
        system:
        let
          pkgs = import nixpkgs { inherit system; };
        in
        {
          default = pkgs.mkShell {
            packages =
              (with pkgs; [
                commitlint
                deadnix
                ls-lint
                nixfmt
                statix
              ])
              ++ [
                (pkgs.callPackage ./nix/python.nix { })
                (pkgs.callPackage ./nix/uv.nix { })
                # lefthook before 2.1.6 runs hooks under a pty, which agent sandboxes deny.
                nixpkgs-unstable.legacyPackages.${system}.lefthook
              ];

            env = {
              UV_PYTHON_DOWNLOADS = "never";
              UV_PYTHON_PREFERENCE = "only-system";
            };

            shellHook = ''
              if [ -d .venv/bin ]; then
                export PATH="$PWD/.venv/bin:$PATH"
              fi
            '';
          };
        }
      );
    };
}