From a625efad9c10dee4a5f857c562b5e41626d17cf1 Mon Sep 17 00:00:00 2001
From: Olivier Nicole <olivier@chnik.fr>
Date: Fri, 26 Jun 2026 09:50:34 +0200
Subject: [PATCH] ocamlPackages.ansi: init at 0.7.0
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Assisted-by: Claude Sonnet 4.6 (Anthropic)
Co-authored-by: Léo <16472988+redianthus@users.noreply.github.com>
---
 .../ocaml-modules/ansi/default.nix            | 48 +++++++++++++++++++
 pkgs/top-level/ocaml-packages.nix             |  2 +
 2 files changed, 50 insertions(+)
 create mode 100644 pkgs/development/ocaml-modules/ansi/default.nix

diff --git a/pkgs/development/ocaml-modules/ansi/default.nix b/pkgs/development/ocaml-modules/ansi/default.nix
new file mode 100644
index 000000000000..061ae83f5d8b
--- /dev/null
+++ b/pkgs/development/ocaml-modules/ansi/default.nix
@@ -0,0 +1,48 @@
+{
+  lib,
+  buildDunePackage,
+  fetchFromGitHub,
+  astring,
+  fmt,
+  tyxml,
+  alcotest,
+}:
+
+buildDunePackage (finalAttrs: {
+  pname = "ansi";
+  version = "0.7.0";
+
+  minimalOCamlVersion = "4.10";
+
+  src = fetchFromGitHub {
+    owner = "ocurrent";
+    repo = "ansi";
+    tag = finalAttrs.version;
+    hash = "sha256-VZR8hz2v4gAvTkizBt59DSYr3tGPWT1Iid8m8YQx48Y=";
+  };
+
+  propagatedBuildInputs = [
+    astring
+    fmt
+    tyxml
+  ];
+
+  checkInputs = [
+    alcotest
+  ];
+
+  doCheck = true;
+
+  meta = {
+    description = "ANSI escape sequence parser";
+    longDescription = ''
+      This package provides a basic ANSI escape parser. Program output (such as
+      build logs) often includes ANSI escape codes to colour and style the output.
+      This library interprets some of the common codes and can convert them to
+      HTML, producing basic styled output (e.g. highlighting errors in red).
+    '';
+    homepage = "https://github.com/ocurrent/ansi";
+    license = lib.licenses.asl20;
+    maintainers = with lib.maintainers; [ otini ];
+  };
+})
diff --git a/pkgs/top-level/ocaml-packages.nix b/pkgs/top-level/ocaml-packages.nix
index 71cfe7da5118..aeac1465c472 100644
--- a/pkgs/top-level/ocaml-packages.nix
+++ b/pkgs/top-level/ocaml-packages.nix
@@ -50,6 +50,8 @@ let
 
         angstrom-unix = callPackage ../development/ocaml-modules/angstrom-unix { };
 
+        ansi = callPackage ../development/ocaml-modules/ansi { };
+
         ansiterminal = callPackage ../development/ocaml-modules/ansiterminal { };
 
         ao = callPackage ../development/ocaml-modules/ao { };