From 632f69857d0a0bdaad7b1b77c85ce9050289f428 Mon Sep 17 00:00:00 2001
From: Vincent Laporte <Vincent.Laporte@gmail.com>
Date: Sat, 5 Oct 2019 07:36:46 +0000
Subject: [PATCH] ocamlPackages.ocaml-monadic: init at 0.4.1

---
 .../ocaml-modules/ocaml-monadic/default.nix   | 25 +++++++++++++++++++
 pkgs/top-level/ocaml-packages.nix             |  2 ++
 2 files changed, 27 insertions(+)
 create mode 100644 pkgs/development/ocaml-modules/ocaml-monadic/default.nix

diff --git a/pkgs/development/ocaml-modules/ocaml-monadic/default.nix b/pkgs/development/ocaml-modules/ocaml-monadic/default.nix
new file mode 100644
index 000000000000..0420e95b12b9
--- /dev/null
+++ b/pkgs/development/ocaml-modules/ocaml-monadic/default.nix
@@ -0,0 +1,25 @@
+{ lib, fetchFromGitHub, buildDunePackage
+, ocaml-migrate-parsetree, ppx_tools_versioned
+}:
+
+buildDunePackage rec {
+  pname = "ocaml-monadic";
+  version = "0.4.1";
+
+  src = fetchFromGitHub {
+    owner = "zepalmer";
+    repo = pname;
+    rev = version;
+    sha256 = "1zcwydypk5vwfn1g7srnl5076scwwq5a5y8xwcjl70pc4cpzszll";
+  };
+
+  buildInputs = [ ppx_tools_versioned ];
+  propagatedBuildInputs = [ ocaml-migrate-parsetree ];
+
+  meta = {
+    inherit (src.meta) homepage;
+    description = "A PPX extension to provide an OCaml-friendly monadic syntax";
+    license = lib.licenses.bsd3;
+    maintainers = [ lib.maintainers.vbgl ];
+  };
+}
diff --git a/pkgs/top-level/ocaml-packages.nix b/pkgs/top-level/ocaml-packages.nix
index 95c16e55a8de..81db86cbb1ee 100644
--- a/pkgs/top-level/ocaml-packages.nix
+++ b/pkgs/top-level/ocaml-packages.nix
@@ -519,6 +519,8 @@ let
 
     ocamlmod = callPackage ../development/tools/ocaml/ocamlmod { };
 
+    ocaml-monadic = callPackage ../development/ocaml-modules/ocaml-monadic { };
+
     ocaml_mysql = callPackage ../development/ocaml-modules/mysql { };
 
     ocamlnet = callPackage ../development/ocaml-modules/ocamlnet { };