nixpkgs/pkgs/development/ocaml-modules/ppx_deriving/default.nix

59 lines
1.4 KiB
Nix

{ lib
, fetchurl
, buildDunePackage
, ocaml
, findlib
, cppo
, ppxlib
, ppx_derivers
, result
, ounit
, ounit2
, ocaml-migrate-parsetree
}:
let params =
if lib.versionAtLeast ppxlib.version "0.20" then {
version = "5.2.1";
sha256 = "11h75dsbv3rs03pl67hdd3lbim7wjzh257ij9c75fcknbfr5ysz9";
} else if lib.versionAtLeast ppxlib.version "0.15" then {
version = "5.1";
sha256 = "1i64fd7qrfzbam5hfbl01r0sx4iihsahcwqj13smmrjlnwi3nkxh";
} else {
version = "5.0";
sha256 = "0fkzrn4pdyvf1kl0nwvhqidq01pnq3ql8zk1jd56hb0cxaw851w3";
}
; in
buildDunePackage rec {
pname = "ppx_deriving";
inherit (params) version;
src = fetchurl {
url = "https://github.com/ocaml-ppx/ppx_deriving/releases/download/v${version}/ppx_deriving-v${version}.tbz";
inherit (params) sha256;
};
strictDeps = true;
nativeBuildInputs = [ cppo ];
buildInputs = [ findlib ppxlib ];
propagatedBuildInputs =
lib.optional (lib.versionOlder version "5.2") ocaml-migrate-parsetree ++ [
ppx_derivers
result
];
doCheck = lib.versionAtLeast ocaml.version "4.08"
&& lib.versionOlder ocaml.version "5.0";
checkInputs = [
(if lib.versionAtLeast version "5.2" then ounit2 else ounit)
];
meta = with lib; {
description = "deriving is a library simplifying type-driven code generation on OCaml >=4.02.";
maintainers = [ maintainers.maurer ];
license = licenses.mit;
};
}