From 1355f90240eabe0ed66cd88bb1dc9e9107c0bf18 Mon Sep 17 00:00:00 2001
From: Snoweuph <snow@euph.email>
Date: Wed, 18 Feb 2026 10:57:43 +0100
Subject: [PATCH] languages/markdown: add mdformat (#1396)

---
 docs/manual/release-notes/rl-0.9.md    |  2 ++
 modules/plugins/languages/markdown.nix | 10 +++++++++-
 2 files changed, 11 insertions(+), 1 deletion(-)

diff --git a/docs/manual/release-notes/rl-0.9.md b/docs/manual/release-notes/rl-0.9.md
index fee49e80..f42e4228 100644
--- a/docs/manual/release-notes/rl-0.9.md
+++ b/docs/manual/release-notes/rl-0.9.md
@@ -169,6 +169,8 @@
 - Added [Selenen](https://github.com/kampfkarren/selene) for more diagnostics in
   `languages.lua`.
 
+- Added [`mdformat`](https://mdformat.rtfd.io/) support to `languages.python`.
+
 - Added XML syntax highlighting, LSP support and formatting
 
 - Added [tera](https://keats.github.io/tera/) language support (syntax
diff --git a/modules/plugins/languages/markdown.nix b/modules/plugins/languages/markdown.nix
index a2634e6d..f0cf1aa1 100644
--- a/modules/plugins/languages/markdown.nix
+++ b/modules/plugins/languages/markdown.nix
@@ -5,7 +5,7 @@
   ...
 }: let
   inherit (builtins) attrNames;
-  inherit (lib.meta) getExe;
+  inherit (lib.meta) getExe getExe';
   inherit (lib.modules) mkIf mkMerge;
   inherit (lib.options) mkEnableOption mkOption;
   inherit (lib.types) bool enum listOf str nullOr;
@@ -55,6 +55,14 @@
     prettierd = {
       command = getExe pkgs.prettierd;
     };
+    mdformat = {
+      command = getExe' (pkgs.python313Packages.python.withPackages (p:
+        with p; [
+          mdformat
+          mdformat-gfm
+          mdformat-frontmatter
+        ])) "mdformat";
+    };
   };
   defaultDiagnosticsProvider = ["markdownlint-cli2"];
   diagnosticsProviders = {