flake.nix

{
  inputs = {
    naersk.url = "github:nix-community/naersk/master";
    nixpkgs.url = "github:NixOS/nixpkgs/nixpkgs-unstable";
    utils.url = "github:numtide/flake-utils";
  };

  outputs = { self, nixpkgs, utils, naersk }:
  let
    systemBuildInputs = system: pkgs: {
      ${system} = with builtins; if ( match   ".*darwin" "${system}" != null) 
      then [  pkgs.iconv pkgs.openssl pkgs.darwin.apple_sdk.frameworks.Security pkgs.darwin.apple_sdk.frameworks.SystemConfiguration ]
      else [ pkgs.iconv pkgs.openssl]
      ;
      };
  in
  utils.lib.eachDefaultSystem( system:
  let
    pkgs = import nixpkgs { 
      inherit system;
  };
    naersk-lib = pkgs.callPackage naersk { };
  in
  {
    defaultPackage = naersk-lib.buildPackage  {
      src = ./.;
      buildInputs = (systemBuildInputs system pkgs).${system};
    };

    devShell = with pkgs; mkShell {
      buildInputs = [ 
        cargo rustc rustfmt pre-commit rustPackages.clippy
      ] ++ (systemBuildInputs system pkgs).${system};
      RUST_SRC_PATH = rustPlatform.rustLibSrc;
    };
  });
}