ocamlPackages.rresult: init at 0.5.0

Rresult is an OCaml module for handling computation results and errors in an
explicit and declarative manner without resorting to exceptions.

Homepage: http://erratique.ch/software/rresult

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

···
+{ stdenv, fetchurl, ocaml, findlib, ocamlbuild, opam, topkg }:
+
+stdenv.mkDerivation rec {
+	name = "ocaml${ocaml.version}-rresult-${version}";
+	version = "0.5.0";
+	src = fetchurl {
+		url = "http://erratique.ch/software/rresult/releases/rresult-${version}.tbz";
+		sha256 = "1xxycxhdhaq8p9vhwi93s2mlxjwgm44fcxybx5vghzgbankz9yhm";
+	};
+
+	unpackCmd = "tar xjf $src";
+
+	buildInputs = [ ocaml findlib ocamlbuild topkg opam ];
+
+	inherit (topkg) buildPhase installPhase;
+
+	meta = {
+		license = stdenv.lib.licenses.isc;
+		homepage = http://erratique.ch/software/rresult;
+		description = "Result value combinators for OCaml";
+		maintainers = [ stdenv.lib.maintainers.vbgl ];
+		inherit (ocaml.meta) platforms;
+	};
+}

pkgs/top-level/ocaml-packages.nix

···
 
     re = callPackage ../development/ocaml-modules/re { };
 
+    rresult = callPackage ../development/ocaml-modules/rresult { };
+
     safepass = callPackage ../development/ocaml-modules/safepass { };
 
     sedlex = callPackage ../development/ocaml-modules/sedlex { };