From 64c2e5dcc201f72dd82da9eb3f19a3904f2af349 Mon Sep 17 00:00:00 2001
From: Olivier Nicole <olivier@chnik.fr>
Date: Fri, 26 Jun 2026 09:53:37 +0200
Subject: [PATCH] ocamlPackages.grace: init at 0.3.0
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Assisted-by: Claude Sonnet 4.6 (Anthropic)
Co-authored-by: Léo <16472988+redianthus@users.noreply.github.com>
Co-authored-by: Vincent Laporte <vbgl@users.noreply.github.com>
(cherry picked from commit 26f41474f631d65bbad0d5a5e1948b49c70f1bbe)
---
 .../ocaml-modules/grace/default.nix           | 50 +++++++++++++++++++
 pkgs/top-level/ocaml-packages.nix             |  2 +
 2 files changed, 52 insertions(+)
 create mode 100644 pkgs/development/ocaml-modules/grace/default.nix

diff --git a/pkgs/development/ocaml-modules/grace/default.nix b/pkgs/development/ocaml-modules/grace/default.nix
new file mode 100644
index 000000000000..be8598d983d8
--- /dev/null
+++ b/pkgs/development/ocaml-modules/grace/default.nix
@@ -0,0 +1,50 @@
+{
+  lib,
+  buildDunePackage,
+  fetchFromGitHub,
+  fmt,
+  iter,
+  uutf,
+  sexplib,
+  ppx_sexp_conv,
+  core,
+  ppx_jane,
+  dedent ? null,
+}:
+
+buildDunePackage (finalAttrs: {
+  pname = "grace";
+  version = "0.3.0";
+
+  minimalOCamlVersion = "4.14";
+
+  src = fetchFromGitHub {
+    owner = "johnyob";
+    repo = "grace";
+    tag = finalAttrs.version;
+    hash = "sha256-V5K9RGk47K/R+q4wS1FU02kMi1uWSCgdUjKHk7uXuGw=";
+  };
+
+  propagatedBuildInputs = [
+    fmt
+    iter
+    uutf
+    sexplib
+    ppx_sexp_conv
+  ];
+
+  checkInputs = [
+    core
+    ppx_jane
+    dedent
+  ];
+
+  doCheck = true;
+
+  meta = {
+    description = "A fancy diagnostics library that allows your compilers to exit with grace";
+    homepage = "https://github.com/johnyob/grace";
+    license = lib.licenses.mit;
+    maintainers = with lib.maintainers; [ otini ];
+  };
+})
diff --git a/pkgs/top-level/ocaml-packages.nix b/pkgs/top-level/ocaml-packages.nix
index 7e578f84b7b9..994d4ac6a898 100644
--- a/pkgs/top-level/ocaml-packages.nix
+++ b/pkgs/top-level/ocaml-packages.nix
@@ -762,6 +762,8 @@ let
           inherit (pkgs) gnuplot;
         };
 
+        grace = callPackage ../development/ocaml-modules/grace { };
+
         graphics =
           if lib.versionOlder "4.09" ocaml.version then
             callPackage ../development/ocaml-modules/graphics { }