languages/python: add ruff formatter

docs/release-notes/rl-0.8.md

@@ -41,8 +41,8 @@
 
 [horriblename](https://github.com/horriblename):
 
-[aerial.nvim](https://github.com/stevearc/aerial.nvim)
-[nvim-ufo](https://github.com/kevinhwang91/nvim-ufo)
+[aerial.nvim]: (https://github.com/stevearc/aerial.nvim)
+[nvim-ufo]: (https://github.com/kevinhwang91/nvim-ufo)
 
 - Add [aerial.nvim]
 - Add [nvim-ufo]
@@ -52,7 +52,8 @@
 - Remove `vim.notes.obsidian.setupOpts.dir`, which was set by default. Fixes
   issue with setting the workspace directory.
 - Add `vim.snippets.luasnip.setupOpts`, which was previously missing.
-- Add `"prettierd"` as a formatter option in `vim.languages.markdown.format.type`.
+- Add `"prettierd"` as a formatter option in
+  `vim.languages.markdown.format.type`.
 
 [kaktu5](https://github.com/kaktu5):
 
@@ -63,3 +64,9 @@
 [solargraph]: https://github.com/castwide/solargraph
 
 - Add Ruby support under `vim.languages.ruby` using [solargraph].
+
+[thamenato](https://github.com/thamenato):
+
+[ruff]: (https://github.com/astral-sh/ruff)
+
+- Add [ruff] as a formatter option in `vim.languages.python.format.type`.

modules/plugins/languages/python.nix

@@ -106,6 +106,24 @@
         )
       '';
     };
+
+    ruff = {
+      package = pkgs.writeShellApplication {
+        name = "ruff";
+        runtimeInputs = [pkgs.ruff];
+        text = ''
+          ruff format -
+        '';
+      };
+      nullConfig = ''
+        table.insert(
+          ls_sources,
+          null_ls.builtins.formatting.ruff.with({
+            command = "${cfg.format.package}/bin/ruff",
+          })
+        )
+      '';
+    };
   };
 
   defaultDebugger = "debugpy";