pkgs/development/ocaml-modules/ppx_import/default.nix


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{ lib
, fetchurl
, buildDunePackage
, ocaml
, ounit
, ppx_deriving
, ppx_sexp_conv
, ppxlib
, version ? if lib.versionAtLeast ocaml.version "4.11" then "1.11.0" else "1.9.1"
}:

lib.throwIfNot (lib.versionAtLeast ppxlib.version "0.24.0")
  "ppx_import is not available with ppxlib-${ppxlib.version}"

buildDunePackage rec {
  pname = "ppx_import";
  inherit version;

  minimalOCamlVersion = "4.05";

  src = fetchurl {
    url = let dir = if lib.versionAtLeast version "1.11" then "v${version}" else "${version}"; in
      "https://github.com/ocaml-ppx/ppx_import/releases/download/${dir}/ppx_import-${version}.tbz";

    hash = {
      "1.9.1" = "sha256-0bSY4u44Ds84XPIbcT5Vt4AG/4PkzFKMl9CDGFZyIdI=";
      "1.11.0" = "sha256-Jmfv1IkQoaTkyxoxp9FI0ChNESqCaoDsA7D4ZUbOrBo=";
    }."${version}";
  };

  propagatedBuildInputs = [
    ppxlib
  ];

  checkInputs = [
    ounit
    ppx_deriving
    ppx_sexp_conv
  ];

  doCheck = true;

  meta = {
    description = "A syntax extension for importing declarations from interface files";
    license = lib.licenses.mit;
    homepage = "https://github.com/ocaml-ppx/ppx_import";
  };
}