{ config, lib, pkgs, ... }: let cfg = config.programs.ruff; settingsFormat = pkgs.formats.toml { }; in { meta.maintainers = [ lib.maintainers.GaetanLepage ]; options.programs.ruff = { enable = lib.mkEnableOption "ruff, an extremely fast Python linter and code formatter, written in Rust"; package = lib.mkPackageOption pkgs "ruff" { nullable = true; }; settings = lib.mkOption { type = settingsFormat.type; example = lib.literalExpression '' { line-length = 100; per-file-ignores = { "__init__.py" = [ "F401" ]; }; lint = { select = [ "E4" "E7" "E9" "F" ]; ignore = [ ]; }; } ''; description = '' Ruff configuration. For available settings see . ''; }; }; config = lib.mkIf cfg.enable { home.packages = lib.mkIf (cfg.package != null) [ cfg.package ]; xdg.configFile."ruff/ruff.toml".source = settingsFormat.generate "ruff.toml" cfg.settings; }; }