From db217a8acaaff759b3f8d097547f5fc7de9c333c Mon Sep 17 00:00:00 2001
From: Vincent Laporte <Vincent.Laporte@gmail.com>
Date: Fri, 4 Jan 2019 18:50:22 +0100
Subject: [PATCH] ocamlPackages.resource-pooling: init at 0.5.2

A library for pooling resources like connections, threads, or similar.

Homepage: https://github.com/ocsigen/resource-pooling
---
 .../resource-pooling/default.nix              | 35 +++++++++++++++++++
 pkgs/top-level/ocaml-packages.nix             |  2 ++
 2 files changed, 37 insertions(+)
 create mode 100644 pkgs/development/ocaml-modules/resource-pooling/default.nix

diff --git a/pkgs/development/ocaml-modules/resource-pooling/default.nix b/pkgs/development/ocaml-modules/resource-pooling/default.nix
new file mode 100644
index 00000000000..71f2d51060c
--- /dev/null
+++ b/pkgs/development/ocaml-modules/resource-pooling/default.nix
@@ -0,0 +1,35 @@
+{ stdenv, fetchFromGitHub, ocaml, findlib, ocamlbuild, lwt_log }:
+
+let pname = "resource-pooling"; in
+
+if !stdenv.lib.versionAtLeast ocaml.version "4.06"
+then throw "${pname} is not available for OCaml ${ocaml.version}"
+else
+
+stdenv.mkDerivation rec {
+  version = "0.5.2";
+  name = "ocaml${ocaml.version}-${pname}-${version}";
+
+  src = fetchFromGitHub {
+    owner = "ocsigen";
+    repo = pname;
+    rev = version;
+    sha256 = "00rz1i61w2dy108hzv38rblnsv6b56b5a1mk5h3zddpivcljp2dh";
+  };
+
+  buildInputs = [ ocaml findlib ocamlbuild ];
+  propagatedBuildInputs = [ lwt_log ];
+
+  configurePhase = "ocaml setup.ml -configure --prefix $out";
+  buildPhase = "ocaml setup.ml -build";
+  createFindlibDestdir = true;
+  installPhase = "ocaml setup.ml -install";
+
+  meta = {
+    inherit (src.meta) homepage;
+    inherit (ocaml.meta) platforms;
+    description = "A library for pooling resources like connections, threads, or similar";
+    license = stdenv.lib.licenses.mit;
+    maintainers = [ stdenv.lib.maintainers.vbgl ];
+  };
+}
diff --git a/pkgs/top-level/ocaml-packages.nix b/pkgs/top-level/ocaml-packages.nix
index a80aec268b9..8df57e8d710 100644
--- a/pkgs/top-level/ocaml-packages.nix
+++ b/pkgs/top-level/ocaml-packages.nix
@@ -589,6 +589,8 @@ let
 
     re2_p4 = callPackage ../development/ocaml-modules/re2 { };
 
+    resource-pooling = callPackage ../development/ocaml-modules/resource-pooling { };
+
     result = callPackage ../development/ocaml-modules/ocaml-result { };
 
     seq = callPackage ../development/ocaml-modules/seq { };