houdini: make unwrapped installation an optionally fixed derivation

{ stdenv, bc, version, src, eulaDate }:

stdenv.mkDerivation {

{ stdenv, bc, version, src, eulaDate, outputHash ? null }:

stdenv.mkDerivation ({

  inherit version src;

  pname = "houdini-runtime";

                      --accept-EULA ${eulaDate} \

                      $out

    echo "licensingMode = localValidator" >> $out/houdini/Licensing.opt  # does not seem to do anything any more. not sure, official docs do not say anything about it

    sed -i 's@'"$out"'@$HFS@g' $out/packages/package_dirs.json  # this seem to be internal houdini tools unavailable to users anyway, but they break fixed-derivation

  '';

  dontFixup = true;

}

} // (if isNull outputHash then {} else {

  inherit outputHash;

  outputHashAlgo = "sha256";

  outputHashMode = "recursive";

}))