Packaging the lua rock "lain"

Help
1

I am trying to package the lua library lain which is not luarocks but provides a rockspec in the github repo.

I use luarock-nix and modified the generated code until it looks like this:

{ fetchFromGitHub , lua }:
lua.pkgs.buildLuarocksPackage {
  pname = "lain";
  version = "scm-1";

  src = fetchFromGitHub {
    owner = "lcpz";
    repo = "lain";
    rev = "0df20e38bbd047c1afea46ab25e8ecf758bb5d45";
    sha256 = "sha256-SjlUbiWdLQrxhNIB7p9JvQGwxwcu/4f9LtwjW+LNu78=";
  };

  disabled = lua.pkgs.luaOlder "5.3";
  propagatedBuildInputs = [
    lua
    lua.pkgs.dkjson
  ];

  meta = {
    homepage = "https://github.com/lcpz/lain";
    description = "Layout, widgets and utilities for Awesome WM";
    license.fullName = "GPL-2.0";
  };
}

But this fails with following log (I build from my local flake):

@nix { "action": "setPhase", "phase": "unpackPhase" }
unpacking sources
unpacking source archive /nix/store/1hkhykvlvqi5m1h2wnic59wkcdk4zfn9-source
source root is source
@nix { "action": "setPhase", "phase": "patchPhase" }
patching sources
@nix { "action": "setPhase", "phase": "configurePhase" }
configuring
@nix { "action": "setPhase", "phase": "buildPhase" }
building
@nix { "action": "setPhase", "phase": "installPhase" }
installing
Missing dependencies for lain scm-1:
   dkjson >= 2.6-1 (not installed)

lain scm-1 depends on dkjson >= 2.6-1 (not installed)
Warning: Failed searching manifest: Failed fetching manifest for https://luarocks.org - Failed downloading https://luarocks.org/manifest-5.3 - https___luarocks.org/manifest-5.3
Warning: Failed searching manifest: Failed fetching manifest for https://raw.githubusercontent.com/rocks-moonscript-org/moonrocks-mirror/master/ - Failed downloading https://raw.githubusercontent.com/rocks-moonscript-org/moonrocks-mirror/master/manifest-5.3 - https___raw.githubusercontent.com_rocks-moonscript-org_moonrocks-mirror_master_/manifest-5.3
Warning: Failed searching manifest: Failed fetching manifest for http://luafr.org/moonrocks/ - Failed downloading http://luafr.org/moonrocks/manifest-5.3 - http___luafr.org_moonrocks_/manifest-5.3
Warning: Failed searching manifest: Failed fetching manifest for http://luarocks.logiceditor.com/rocks - Failed downloading http://luarocks.logiceditor.com/rocks/manifest-5.3 - http___luarocks.logiceditor.com_rocks/manifest-5.3
dkjson not found for Lua 5.3.
Checking if available for other Lua versions...
Checking for Lua 5.1...
Checking for Lua 5.2...
Checking for Lua 5.4...

Error: Could not satisfy dependency dkjson >= 2.6-1: No results matching query were found for Lua 5.3.

For the record I use nix build and the lain.nix file from above is included in my flake.nix file like this:

packages.x86_64-linux.lain = pkgs.callPackage packages/lain.nix { lua = pkgs.lua5_3; };

I had a look at how dkjson is used in pkgs/development/lua-modules/generated-packages.nix in nixpkgs and was hoping that my code above would work but I have no idea what luarock or buildLuarocksPackage want from me at this point.

Any hints or ideas?

2

the version I see in unstable for dkjson is version = "2.5-3"; ; have you tried bumping it along ?

3

No I have not. Is there a certain policy when how and who can send PRs for updates to the lua packages? Otherwise I can just run the updates script and send a PR. v2.5 seems to be from 2014 and 2.6 from 2021 so it might be nice to have it in nixpkgs and not just locally at my place.

4

Please do, you can ping me then.
I usually run nixpkgs-review after sending a PR.