staxman-old/flake.nix

{
  description = "staxman";

  inputs = {
    flake-parts.url = "github:hercules-ci/flake-parts";
    rust-overlay.url = "github:oxalica/rust-overlay";
    rust-crate2nix = {
      url = "github:kolloch/crate2nix";
      flake = false;
    };
  };

  outputs = inputs @ {
    self,
    nixpkgs,
    flake-parts,
    rust-overlay,
    rust-crate2nix,
    ...
  } : flake-parts.lib.mkFlake { inherit inputs; } {
    systems = [
      "x86_64-linux"
    ];
    flake = with nixpkgs.lib; {
        nixosModules.staxman = {
          options = {
            enable = mkEnableOption "staxman";
            stackDir = mkOption {
              type = types.path;
              defaultText = "/stacks";
              example = "/stacks";
              description = ''
                Directory containing Arion stacks
              '';
            };
          };
          config = mkIf cfg.enable {
            systemd.services.staxman = {
              description = "Scatting system management";
              after = [ "network-online.target" ];
              wantedBy = [ "multi-user.target" ];
              environment.STAX_ARION_BIN = "${getBin nixpkgs.arion}";
              environment.STAX_DIR = cfg.stackDir;

              serviceConfig = {
                User = "root";
                Group = "root";
                Restart = "always";
                ExecStart = "${getBin nixpkgs.staxman}/bin/staxman";
              };
              StateDirectory = "staxman";
              StateDirectoryMode = "0750";
            };
          };
        };
      };
    perSystem = { system, pkgs, ... }: let
      overlays = [
        (import rust-overlay)
        (self: super: let
          toolchain = super.rust-bin.fromRustupToolchainFile ./rust-toolchain.toml;
        in {
          rustc = toolchain;
        })
      ];
      pkgs = import nixpkgs { inherit system overlays; };

      project = let
        crateTools = pkgs.callPackage "${rust-crate2nix}/tools.nix" { inherit pkgs; };
      in import (crateTools.generatedCargoNix {
        name = "staxman";
        src = ./.;
      }) {
        inherit pkgs;
      };
    in rec {
      packages = {
        staxman = project.rootCrate.build;
        default = packages.staxman;
      };
    };
  };
}