{ current-date , current-host-name , current-user-name }: let lib = import <nixpkgs/lib>; krebs-modules-path = ./krebs/3modules; krebs-pkgs-path = ./krebs/5pkgs; user-modules-path = ./. + "/${current-user-name}/3modules"; user-pkgs-path = ./. + "/${current-user-name}/5pkgs"; out = lib.mapAttrs (_: builtins.getAttr "main") (lib.filterAttrs (_: builtins.hasAttr "main") (lib.mapAttrs (k: v: if lib.hasPrefix "." k || v != "directory" then {} else if builtins.pathExists (./. + "/${k}/default.nix") then { main = import (./. + "/${k}"); } else if builtins.pathExists (./. + "/${k}/1systems") then { main = mk-namespace (./. + "/${k}"); } else {}) (builtins.readDir ./.))); eval = path: import <nixpkgs/nixos/lib/eval-config.nix> { system = builtins.currentSystem; modules = [ path krebs-modules-path user-modules-path ] ++ [ ({ config, lib, pkgs, ... }@args: { _module.args.pkgs = (import krebs-pkgs-path args) // (import user-pkgs-path args); }) ]; }; mk-namespace = path: mapNixDir mk-system (path + "/1systems"); mk-system = path: rec { inherit (eval path) config options; system = config.system.build.toplevel; fetch = import ./krebs/0tools/fetch.nix { inherit config lib; }; }; mapNixDir = f: path: lib.mapAttrs (_: f) (nixDir path); nixDir = path: builtins.listToAttrs (catMaybes (lib.mapAttrsToList (k: v: { directory = let p = path + "/${k}/default.nix"; in if builtins.pathExists p then Just (lib.nameValuePair k p) else Nothing; regular = let p = path + "/${k}"; in if lib.hasSuffix ".nix" p then Just (lib.nameValuePair (lib.removeSuffix ".nix" k) p) else Nothing; }.${v} or Nothing) (builtins.readDir path))); # TODO move to lib Just = x: { type = "maybe"; value = x; }; Nothing = { type = "maybe"; }; isMaybe = x: builtins.typeOf x == "set" && x.type or false == "maybe"; isJust = x: isMaybe x && builtins.hasAttr "value" x; fromJust = x: assert isJust x; x.value; catMaybes = xs: map fromJust (builtins.filter isJust xs); in out