feat(deps_nix): Add rustler precompiled overrides to deps_nix

[ferrine]

fix #20

mixNixDeps = pkgs.callPackages ./deps.nix {
    rustlerPrecompiledOverrides = {
      vega_lite_convert = {
        env.RUSTY_V8_ARCHIVE = pkgs.fetchurl {
          url = "https://github.com/denoland/rusty_v8/releases/download/v0.105.1/librusty_v8_release_x86_64-unknown-linux-gnu.a.gz";
          hash = "sha256-f7aDA74Jn2h4rp9sACGHX4DBbN6yevgWCEKdfI1fJDU=";
        };
        postInstall = ''
          # this package does not expect lib prefix
          ln -s libex_vl_convert.so $out/lib/ex_vl_convert.so
        '';
      };
    };
  };

[camelpunch]

Would you mind rebasing and resolving conflicts? Thanks for your contribution!

[ferrine]

sure

[ferrine]

just did that but the snippet concerning vega lite appeared to not just that... There is also a name of library mismatch. I do not know if it is very common, but the nif expects ex_vl_convert.so, not libex_vl_convert.so. It is possible to find a workaround using the proposed patch, but I suppose this might come from how build is organised

UPD:

I found this workaround makes the nif work

        postInstall = ''
          ln -s libex_vl_convert.so $out/lib/ex_vl_convert.so
        '';

[camelpunch]

I don't understand. Is this PR ready, or is there an issue with it that requires a workaround? Or is the issue with the current main branch?

[ferrine]

The pr is ready, the problem is package specific as far as I understand it now