Error: "data did not match any variant of untagged enum PackageMaintainers at line 2361 column 7"

[usmcamp0811]

Saw your flake on FlakeHub and thought I would give it a go. I added it to my config and tried running:

nix2sbom --current-system

and I got the following error:

[00:00:00.000] (7f28fe0877c0) INFO   Getting the derivations from the current system.
[00:00:01.197] (7f28fe0877c0) INFO   Found 10375 derivations
[00:00:01.197] (7f28fe0877c0) INFO   Getting the metadata for packages in the Nix store
Error: "data did not match any variant of untagged enum PackageMaintainers at line 2361 column 7"

I tried some more things and got the same or similar looking errors:

╭─mcamp on butler in ~/code/campground-nvim on master🔥
╰─🚧 nix2sbom -f .#
[00:00:00.000] (7fc8d82b47c0) INFO   Getting the derivations from file .#.
[00:00:02.779] (7fc8d82b47c0) INFO   Found 4344 derivations
[00:00:02.779] (7fc8d82b47c0) INFO   Getting the metadata for packages in the Nix store
Error: "data did not match any variant of untagged enum PackageMaintainers at line 2361 column 7"
╭─mcamp on butler in ~/code/campground-nvim on master🔥
╰─🚧 cd ../vault-secrets 
╭─mcamp on butler in ~/code/vault-secrets on main✔️
╰─🚧 nix2sbom -f .#     
[00:00:00.000] (7f0a885e47c0) INFO   Getting the derivations from file .#.
[00:00:00.448] (7f0a885e47c0) INFO   Found 654 derivations
[00:00:00.448] (7f0a885e47c0) INFO   Getting the metadata for packages in the Nix store
Error: "data did not match any variant of untagged enum PackageMaintainers at line 2361 column 7"

campground-nvim and vault-secrets are flakes of mine, the nvim one is based on nixvim and the other is a simple shell script flake I was playing with the other night.

I very well might be doing something dumb, because I only marginally know what I'm doing. So if I am way out in left field let me know..

[louib]

@usmcamp0811 thanks for reporting the issue!

This step is fetching the metadata for the packages in your store, which explains why I wasn't able to reproduce locally.
You can generate the metadata information for your Nix store with the following command:

nix-env -q -a --meta --json '.*' > packages-metadata.json

You can then call nix2sbom with the --metadata-path option to use a pre-generated metadata, for example:

nix2sbom -f .# --metadata-path packages-metadata.json

If you could do the following two commands and send me the derivation that is located at line 2361 (or whatever line it will be once you try again), that would help me troubleshooting faster. Thanks a lot!

[usmcamp0811]

I tried running those commands and got:

╭─mcamp on butler in /config on nixos🔥
╰─🚧 nix-env -q -a --meta --json '.*' > packages-metadata.json
╭─mcamp on butler in /config on nixos🔥
╰─🚧 nix2sbom -f .# --metadata-path packages-metadata.json
[00:00:00.000] (7fc99ef0f7c0) INFO   Getting the derivations from file .#.
Error: Custom { kind: UnexpectedEof, error: Error("EOF while parsing a value", line: 1, column: 0) }
╭─mcamp on butler in /config on nixos🔥
╰─🚧 nix2sbom -f .# --metadata-path /config/packages-metadata.json
[00:00:00.000] (7f40b6af07c0) INFO   Getting the derivations from file .#.
Error: Custom { kind: UnexpectedEof, error: Error("EOF while parsing a value", line: 1, column: 0) }
╭─mcamp on butler in /config on nixos🔥
╰─🚧 nix2sbom -f .#butler --metadata-path /config/packages-metadata.json
[00:00:00.000] (7fec1f50b7c0) INFO   Getting the derivations from file .#butler.
Error: Custom { kind: UnexpectedEof, error: Error("EOF while parsing a value", line: 1, column: 0) }

I dunno about uploading that packages-metadata.json its 128MB. If you need it I can figure a place to put it.

if you mean whats at line 2361 in the json then this is whats in that area:

  "nixos.LAStools": {
    "meta": {
      "available": false,
      "broken": false,
      "description": "Software for rapid LiDAR processing",
      "homepage": "http://lastools.org/",
      "insecure": false,
      "license": {
        "deprecated": false,
        "free": false,
        "fullName": "Unfree",
        "redistributable": false,
        "shortName": "unfree"
      },
      "maintainers": [
        {
          "github": "StephenWithPH",
          "githubId": 2990492,
          "name": "StephenWithPH"
        }
      ],
      "name": "LAStools-2.0.2",
      "outputsToInstall": [
        "out"
      ],
      "platforms": [
        "i686-cygwin",
        "x86_64-cygwin",
        "x86_64-darwin",
        "i686-darwin",
        "aarch64-darwin",
        "armv7a-darwin",
        "i686-freebsd13",
        "x86_64-freebsd13",
        "x86_64-solaris",
        "aarch64-linux",
        "armv5tel-linux",
        "armv6l-linux",
        "armv7a-linux",
        "armv7l-linux",
        "i686-linux",
        "loongarch64-linux",
        "m68k-linux",
        "microblaze-linux",
        "microblazeel-linux",
        "mipsel-linux",
        "mips64el-linux",
        "powerpc64-linux",
        "powerpc64le-linux",
        "riscv32-linux",
        "riscv64-linux",
        "s390-linux",
        "s390x-linux",
        "x86_64-linux",
        "aarch64-netbsd",
        "armv6l-netbsd",
        "armv7a-netbsd",
        "armv7l-netbsd",
        "i686-netbsd",
        "m68k-netbsd",
        "mipsel-netbsd",
        "powerpc-netbsd",
        "riscv32-netbsd",
        "riscv64-netbsd",
        "x86_64-netbsd",
        "i686-openbsd",
        "x86_64-openbsd",
        "x86_64-redox"
      ],
      "position": "/nix/store/mirpm2hcfllj98r3rhq9y72r3gj5khnm-nixos-23.05.3071.c540061ac8d7/nixos/pkgs/development/libraries/LAStools/default.nix:27",
      "unfree": true,
      "unsupported": false
    },
    "name": "LAStools-2.0.2",
    "outputName": "out",
    "outputs": {
      "out": null
    },
    "pname": "LAStools",
    "system": "x86_64-linux",
    "version": "2.0.2"
  },

[louib]

@usmcamp0811 thanks for the snippet! I was able to capture the bug in a unit test and provide a fix in #24.

I'm not sure why you were getting the UnexpectedEof errors when trying to use the --metadata-path path option 🤔 I tried reproducing locally but didn't get that error.

[louib]

@usmcamp0811 please give it another shot with version louib/nix2sbom/0.1.106+rev-db34541fdf1017060bfaefa60c3b8867c7518aa6, which should be available from Flakehub now.

[louib]

@usmcamp0811 I'm going to close this one, let me know if you run into the issue again.