nixpkgs/nixos/lib/eval-cacheable-options.nix

55 lines
1.4 KiB
Nix
Raw Normal View History

{ libPath
, pkgsLibPath
, nixosPath
, modules
, stateVersion
, release
}:
let
lib = import libPath;
modulesPath = "${nixosPath}/modules";
# dummy pkgs set that contains no packages, only `pkgs.lib` from the full set.
# not having `pkgs.lib` causes all users of `pkgs.formats` to fail.
pkgs = import pkgsLibPath {
inherit lib;
pkgs = null;
};
utils = import "${nixosPath}/lib/utils.nix" {
inherit config lib;
pkgs = null;
};
# this is used both as a module and as specialArgs.
# as a module it sets the _module special values, as specialArgs it makes `config`
# unusable. this causes documentation attributes depending on `config` to fail.
config = {
_module.check = false;
_module.args = {};
system.stateVersion = stateVersion;
};
eval = lib.evalModules {
modules = (map (m: "${modulesPath}/${m}") modules) ++ [
config
];
specialArgs = {
inherit config pkgs utils;
class = "nixos";
};
};
docs = import "${nixosPath}/doc/manual" {
pkgs = pkgs // {
inherit lib;
# duplicate of the declaration in all-packages.nix
buildPackages.nixosOptionsDoc = attrs:
(import "${nixosPath}/lib/make-options-doc")
({ inherit pkgs lib; } // attrs);
};
config = config.config;
options = eval.options;
version = release;
revision = "release-${release}";
prefix = modulesPath;
};
in
docs.optionsNix