Rebuilding system using niv fails in nixos 22.05

jtojnar · June 18, 2022, 12:46pm

Running NIX_PATH="$sources::nixos-config=$PWD/configuration.nix" /nix/store/iakj2nchjqlxhrpgxnshlsqcg3rrw762-nixos-option/bin/nixos-option system.stateVersion, the value is actually set correctly.

But looking at the trace some more, it actually fails in the docs build. And those will not pick up the stateVersion from your config to allow the docs build be better cached.

Though, even then, I do not see where it could be getting the string context:

github.com

NixOS/nixpkgs/blob/30eaeb044ed79853d07ce171c898d494d36f1645/nixos/modules/misc/documentation.nix#L87


      
          } ''
            export NIX_STORE_DIR=$TMPDIR/store
            export NIX_STATE_DIR=$TMPDIR/state
            ${pkgs.buildPackages.nix}/bin/nix-instantiate \
              --show-trace \
              --eval --json --strict \
              --argstr libPath "$libPath" \
              --argstr pkgsLibPath "$pkgsLibPath" \
              --argstr nixosPath "$nixosPath" \
              --arg modules "[ $modules ]" \
              --argstr stateVersion "${options.system.stateVersion.default}" \
              --argstr release "${config.system.nixos.release}" \
              $nixosPath/lib/eval-cacheable-options.nix > $out \
              || {
                echo -en "\e[1;31m"
                echo 'Cacheable portion of option doc build failed.'
                echo 'Usually this means that an option attribute that ends up in documentation (eg' \
                  '`default` or `description`) depends on the restricted module arguments' \
                  '`config` or `pkgs`.'
                echo
                echo 'Rebuild your configuration with `--show-trace` to find the offending' \

github.com

NixOS/nixpkgs/blob/30eaeb044ed79853d07ce171c898d494d36f1645/nixos/lib/eval-cacheable-options.nix#L28


      
          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" {