non-workspace packages?

[akshatagarwl]

Before anything else sorry for this very vague title.

I am trying to build https://github.com/containers/youki/commit/01acab90d0c6969814f57759a0e1bf3f0466baf1 which refers to a package oci_spec as follows in its Cargo.toml

oci_spec = { version = "0.1.0", path = "./oci_spec" }

but build it fails with this error

warning: Git tree '/home/humancalico/repos/youki' is dirty
error: builder for '/nix/store/phm55ih3ij69x9w9vwyvnj8i0v2kx2f0-youki-deps-0.0.1.drv' failed with exit code 101;
       last 10 log lines:
       >
       > Caused by:
       >   Unable to update /build/dummy-src/oci_spec
       >
       > Caused by:
       >   failed to read `/build/dummy-src/oci_spec/Cargo.toml`
       >
       > Caused by:
       >   No such file or directory (os error 2)
       > [naersk] cargo returned with exit code 101, exiting
       For full logs, run 'nix log /nix/store/phm55ih3ij69x9w9vwyvnj8i0v2kx2f0-youki-deps-0.0.1.drv'.
error: 1 dependencies of derivation '/nix/store/m6bnkq1bkg4h51s5rd3igvq611dsz526-youki-0.0.1.drv' failed to build

adding the package as a workspace like this in Cargo.toml fixes it

[workspace]
members = [
  "oci_spec",
]

flake.nix

{
  description = "A container runtime written in Rust";

  inputs = {
    utils.url = "github:numtide/flake-utils";
    naersk.url = "github:nmattia/naersk";
  };

  outputs = { self, nixpkgs, utils, naersk }:
    utils.lib.eachDefaultSystem (system: let
      # cargoToml = (builtins.fromTOML (builtins.readFile ./Cargo.toml));
      pkgs = nixpkgs.legacyPackages."${system}";
      naersk-lib = naersk.lib."${system}";
    in rec {
      # `nix build`
      packages.youki = naersk-lib.buildPackage {
        pname = "youki";
        root = ./.;

        buildInputs = with pkgs; [ pkg-config systemd dbus ];
      };
      defaultPackage = packages.youki;

      # `nix run`
      apps.youki = utils.lib.mkApp {
        drv = packages.youki;
      };
      defaultApp = apps.youki;

      # `nix develop`
      devShell = pkgs.mkShell {
        nativeBuildInputs = with pkgs; [ rustc cargo rustfmt systemd dbus go ];
      };
    });
}

[Anderssorby]

I have the same problem. I guess this could be solved by searching through the cargoToml and adding local dependencies to members.

[FlorianFranzen]

Maybe using cargo metadata | jq .workspace_members would be a better solution then to just use what is in the Cargo.toml.

[tv42]

I think this is a duplicate of #133 and that issue mentions workarounds, in this case I guess copySources = [ "oci_spec" ]