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{ pkgs ? import <nixpkgs> {},
  stdenv ? pkgs.stdenv,
  lib ? pkgs.lib,
  ldc ? null,
  dcompiler ? pkgs.ldc,
  dub ? pkgs.dub
}:
assert dcompiler != null;
with stdenv lib;
let
  # Filter function to remove the .dub package folder from src
  filterDub = name: type: let baseName = baseNameOf (toString name); in ! (
    type == "directory" && baseName == ".dub"
  );
  # Convert a GIT rev string (tag) to a simple semver version
  rev-to-version = builtins.replaceStrings ["v" "refs/tags/v"] ["" ""];
  dep2src = dubDep: pkgs.fetchgit { inherit (dubDep.fetch) url rev sha256 fetchSubmodules; };
  # Fetch a dependency (source only for now)
  fromDub = dubDep: mkDerivation rec {
    name = "${src.name}-${version}";
    version = rev-to-version dubDep.fetch.rev;
    nativeBuildInputs = [ dcompiler dub ];
    src = dep2src dubDep;
    buildPhase = ''
      runHook preBuild
      export HOME=$NIX_BUILD_TOP
      #export HOME=$PWD
      dub build -b=release
      runHook postBuild
    '';
    # outputs = [ "lib" ];
    # installPhase = ''
    #   runHook preInstall
    #   mkdir -p $out/bin
    #   runHook postInstall
    # '';
  };
  # Adds a local package directory (e.g. a git repository) to Dub
  dub-add-local = dubDep: "dub add-local ${(fromDub dubDep).src.outPath} ${rev-to-version dubDep.fetch.rev}";
  # The target output of the Dub package
  targetOf = package: "${package.targetPath or "."}/${package.targetName or package.name}";
  # Remove reference to build tools and library sources
  disallowedReferences = deps: [ dcompiler dub ] ++ builtins.map dep2src deps;
  removeExpr = refs: ''remove-references-to ${lib.concatMapStrings (ref: " -t ${ref}") refs}'';
in {
  inherit fromDub;
  mkDubDerivation = lib.makeOverridable ({
    src,
    nativeBuildInputs ? [],
    dubJSON ? src + "/dub.json",
    selections ? src + "/nix/dub.selections.nix",
    deps ? import selections,
    passthru ? {},
    package ? lib.importJSON dubJSON,
    ...
  } @ attrs: stdenv.mkDerivation (attrs // {
    pname = package.name;
    nativeBuildInputs = [ dcompiler dub pkgs.removeReferencesTo ] ++ nativeBuildInputs;
    disallowedReferences = disallowedReferences deps;
    passthru = passthru // {
      inherit dub dcompiler pkgs;
    };
    src = lib.cleanSourceWith {
      filter = filterDub;
      src = lib.cleanSource src;
    };
    preFixup = ''
      find $out/bin -type f -exec ${removeExpr (disallowedReferences deps)} '{}' + || true
    '';
    buildPhase = ''
      runHook preBuild
      export HOME=$PWD
      ${lib.concatMapStringsSep "\n" dub-add-local deps}
      for dc_ in dmd ldmd2 gdmd; do
        echo "- check for D compiler $dc_"
        dc=$(type -P $dc_ || echo "")
        if [ ! "$dc" == "" ]; then
          break
        fi
      done
      if [ "$dc" == "" ]; then
        exit "Error: could not find D compiler"
      fi
      echo "$dc_ used as D compiler to build $pname"
      dub build --compiler=$dc --build=release --combined --skip-registry=all
      runHook postBuild
    '';
    checkPhase = ''
      runHook preCheck
      export HOME=$PWD
      ${lib.concatMapStringsSep "\n" dub-add-local deps}
      dub test --combined --skip-registry=all
      runHook postCheck
    '';
    installPhase = ''
      runHook preInstall
      mkdir -p $out/bin
      cp -r "${targetOf package}" $out/bin
      runHook postInstall
    '';
    meta = lib.optionalAttrs (package ? description) {
      description = package.description;
    } // attrs.meta or {};
  } // lib.optionalAttrs (!(attrs ? version)) {
    # Use name from dub.json, unless pname and version are specified
    name = package.name;
  }));
}