ocamlPackages.digestif: init at 0.5

Digestif provides some hash functions in OCaml.

Homepage: https://github.com/mirage/digestif

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

@@ -0,0 +1,29 @@
+{ stdenv, fetchurl, ocaml, findlib, ocamlbuild, topkg }:
+
+if !stdenv.lib.versionAtLeast ocaml.version "4.3"
+then throw "digestif is not available for OCaml ${ocaml.version}"
+else
+
+stdenv.mkDerivation rec {
+  name = "ocaml${ocaml.version}-digestif-${version}";
+  version = "0.5";
+
+  src = fetchurl {
+    url = "https://github.com/mirage/digestif/releases/download/v${version}/digestif-${version}.tbz";
+    sha256 = "0fsyfi5ps17j3wjav5176gf6z3a5xcw9aqhcr1gml9n9ayfbkhrd";
+  };
+
+  unpackCmd = "tar -xjf $curSrc";
+
+  buildInputs = [ ocaml findlib ocamlbuild topkg ];
+
+  inherit (topkg) buildPhase installPhase;
+
+  meta = {
+    description = "Simple hash algorithms in OCaml";
+    homepage = "https://github.com/mirage/digestif";
+    license = stdenv.lib.licenses.mit;
+    maintainers = [ stdenv.lib.maintainers.vbgl ];
+    inherit (ocaml.meta) platforms;
+  };
+}

pkgs/top-level/ocaml-packages.nix

@@ -200,6 +200,8 @@ let
 
     decompress =  callPackage ../development/ocaml-modules/decompress { };
 
+    digestif =  callPackage ../development/ocaml-modules/digestif { };
+
     dolmen =  callPackage ../development/ocaml-modules/dolmen { };
 
     dolog = callPackage ../development/ocaml-modules/dolog { };