diff options
Diffstat (limited to 'nixos/lib/eval-cacheable-options.nix')
-rw-r--r-- | nixos/lib/eval-cacheable-options.nix | 53 |
1 files changed, 53 insertions, 0 deletions
diff --git a/nixos/lib/eval-cacheable-options.nix b/nixos/lib/eval-cacheable-options.nix new file mode 100644 index 00000000000..c3ba2ce6637 --- /dev/null +++ b/nixos/lib/eval-cacheable-options.nix @@ -0,0 +1,53 @@ +{ 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; + }; + }; + 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 |