digga/flake.nix

{
  description = "DevOS environment configuriguration library.";

  inputs =
    {
      deploy.url = "github:serokell/deploy-rs";
      devshell.url = "github:numtide/devshell";
      utils.url = "github:gytis-ivaskevicius/flake-utils-plus/staging";
      nixlib.url = "github:divnix/nixpkgs.lib";

      # We only use the nixosModules output which only needs nixpkgs lib
      # TODO: don't pull another 'nixpkgs' when only nixpkgs lib is needed
      nixos-generators.url = "github:nix-community/nixos-generators";

      # Only used for development
      nixpkgs.url = "github:nixos/nixpkgs";
    };

  outputs =
    { self
    , nixlib
    , nixpkgs
    , deploy
    , devshell
    , utils
    , nixos-generators
    , ...
    }@inputs:
    let
      lib = nixlib.lib.makeExtensible (self:
        let combinedLib = nixlib.lib // self; in
        with self;
        utils.lib // {
          attrs = import ./src/attrs.nix { lib = combinedLib; };
          lists = import ./src/lists.nix { lib = combinedLib; };
          strings = import ./src/strings.nix { lib = combinedLib; };

          modules = import ./src/modules.nix {
            lib = combinedLib;
            inherit nixos-generators;
          };

          importers = import ./src/importers.nix {
            lib = combinedLib;
          };

          generators = import ./src/generators.nix {
            lib = combinedLib;
            inherit deploy;
          };

          mkFlake = {
            __functor = import ./src/mkFlake { lib = combinedLib; };
            evalArgs = import ./src/mkFlake/evalArgs.nix {
              lib = combinedLib;
              inherit devshell;
            };
          };

          pkgs-lib = import ./src/pkgs-lib {
            lib = combinedLib;
            inherit deploy devshell;
          };

          inherit (attrs) mapFilterAttrs genAttrs' concatAttrs;
          inherit (lists) unifyOverlays;
          inherit (strings) rgxToString;
          inherit (importers) profileMap flattenTree rakeLeaves mkProfileAttrs maybeImportDevshellModule;
          inherit (generators) mkSuites mkDeployNodes mkHomeConfigurations;
        }
      );

    in

    {
      lib = with lib; utils.lib // {
        inherit attrs lists modules importers generators;
        inherit (lib)
          mkFlake
          mkDeployNodes
          mkHomeConfigurations;
      };
    }

    //

    utils.lib.systemFlake {
      inherit self inputs;
      channels.pkgs.input = nixpkgs;
      outputsBuilder = channels:
        let inherit (channels) pkgs; in
        {
          checks = import ./tests {
            inherit pkgs;
            lib = nixlib.lib // lib;
          };

          devShell = lib.pkgs-lib.shell { inherit pkgs; };

          packages = {
            mkFlakeDoc = pkgs.writeText "mkFlakeOptions.md"
              (
                pkgs.nixosOptionsDoc {
                  inherit (lib.mkFlake.evalArgs { args = { }; }) options;
                }
              ).optionsMDDoc;
          };
        };
    };

}