From 9460430127f5b432f833a859031996be43016a93 Mon Sep 17 00:00:00 2001
From: Laurent Canis <laurent@marigold.dev>
Date: Fri, 28 Apr 2023 11:00:12 -0400
Subject: [PATCH] ocamlPackages.prometheus: init at 1.2

---
 .../ocaml-modules/prometheus/default.nix      | 28 +++++++++++++++++++
 pkgs/top-level/ocaml-packages.nix             |  2 ++
 2 files changed, 30 insertions(+)
 create mode 100644 pkgs/development/ocaml-modules/prometheus/default.nix

diff --git a/pkgs/development/ocaml-modules/prometheus/default.nix b/pkgs/development/ocaml-modules/prometheus/default.nix
new file mode 100644
index 00000000000..2715c50b3ed
--- /dev/null
+++ b/pkgs/development/ocaml-modules/prometheus/default.nix
@@ -0,0 +1,28 @@
+{ lib, fetchurl, buildDunePackage, astring, asetmap, fmt, re, lwt, alcotest }:
+
+buildDunePackage rec {
+  pname = "prometheus";
+  version = "1.2";
+
+  src = fetchurl {
+    url = "https://github.com/mirage/prometheus/releases/download/v${version}/prometheus-${version}.tbz";
+    sha256 = "sha256-g2Q6ApprbecdFANO7i6U/v8dCHVcSkHVg9wVMKtVW8s=";
+  };
+
+  duneVersion = "3";
+
+  propagatedBuildInputs = [
+    astring
+    asetmap
+    fmt
+    re
+    lwt
+    alcotest
+  ];
+
+  meta = {
+    description = "Client library for Prometheus monitoring";
+    license = lib.licenses.asl20;
+    maintainers = [ lib.maintainers.ulrikstrid ];
+  };
+}
diff --git a/pkgs/top-level/ocaml-packages.nix b/pkgs/top-level/ocaml-packages.nix
index 1549097e37b..28651652e15 100644
--- a/pkgs/top-level/ocaml-packages.nix
+++ b/pkgs/top-level/ocaml-packages.nix
@@ -1388,6 +1388,8 @@ let
 
     process = callPackage ../development/ocaml-modules/process { };
 
+    prometheus = callPackage ../development/ocaml-modules/prometheus { };
+
     progress = callPackage ../development/ocaml-modules/progress { };
 
     promise_jsoo = callPackage ../development/ocaml-modules/promise_jsoo { };