`nix flake check` seems to ignore `nixConfig` in flake #572

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opened 2024-11-08 18:41:01 +00:00 by vikanezrimaya · 1 comment

vikanezrimaya commented

2024-11-08 18:41:01 +00:00

Describe the bug

nix flake check doesn't seem to respect extra-experimental-features in nixConfig.

Steps To Reproduce

Create a flake using an experimental feature (I use pipe-operator)
Put nixConfig.extra-experimental-features = ["pipe-operator"]
nix flake check

See error:

$ nix flake check
error: Pipe operator is disabled
       at /nix/store/sh9wrc00k7pv347664ybbf2fkmx2ni7f-source/flake.nix:116:7:
          115|       }) // (self.nixosConfigurations
          116|       |> (nixpkgs.lib.filterAttrs
             |       ^
          117|         (name: value:

Expected behavior

nix flake check runs successfully.

`nix --version` output

$ nix --version
nix (Lix, like Nix) 2.91.0

Additional context

Perhaps more commands also don't respect nixConfig. More research may be needed.

## Describe the bug `nix flake check` doesn't seem to respect `extra-experimental-features` in `nixConfig`. ## Steps To Reproduce 1. Create a flake using an experimental feature (I use `pipe-operator`) 2. Put `nixConfig.extra-experimental-features = ["pipe-operator"]` 3. `nix flake check` 4. See error: ```console $ nix flake check error: Pipe operator is disabled at /nix/store/sh9wrc00k7pv347664ybbf2fkmx2ni7f-source/flake.nix:116:7: 115| }) // (self.nixosConfigurations 116| |> (nixpkgs.lib.filterAttrs | ^ 117| (name: value: ``` ## Expected behavior `nix flake check` runs successfully. ## `nix --version` output ```console $ nix --version nix (Lix, like Nix) 2.91.0 ``` ## Additional context Perhaps more commands also don't respect `nixConfig`. More research may be needed.

vikanezrimaya added the

bug

label 2024-11-08 18:41:01 +00:00

pennae commented

2024-11-08 18:47:13 +00:00

Owner

you are asking lix to parse flake.nix while observing settings it can only obtain by parsing flake.nix first. there's no resolution for this. flakes simply cannot enable features affecting parsing for flake.nix via nixConfig.

you are asking lix to parse `flake.nix` while observing settings it can only obtain by parsing `flake.nix` first. there's no resolution for this. flakes simply cannot enable features affecting parsing for `flake.nix` via `nixConfig`.