chore(ruff): split into ruff-format and ruff-check (#213)

This fixes ./example.sh and `nix flake check`. They depends on having
.enable options.

Author: zimbatm

README.md

@@ -278,7 +278,8 @@ functions.
 * prettier
 * protolint
 * purs-tidy
-* ruff
+* ruff-check
+* ruff-format
 * rufo
 * rustfmt
 * scalafmt

examples/formatter-ruff.toml renamed to examples/formatter-ruff-check.toml

@@ -0,0 +1,6 @@
+# Example generated by ../examples.sh
+[formatter.ruff-format]
+command = "ruff"
+excludes = []
+includes = ["*.py", "*.pyi"]
+options = ["format"]

examples/formatter-ruff-format.toml

@@ -0,0 +1,35 @@
+{ lib, pkgs, config, ... }:
+let
+  cfg = config.programs.ruff-check;
+in
+{
+  meta.maintainers = [ ];
+
+  imports = [
+    (lib.mkRenamedOptionModule [ "programs" "ruff" "check" ] [ "programs" "ruff-check" "enable" ])
+    (lib.mkRenamedOptionModule [ "programs" "ruff" "enable" ] [ "programs" "ruff-check" "enable" ])
+  ];
+
+  options.programs.ruff-check = {
+    enable = lib.mkEnableOption "ruff linter" // {
+      description = ''
+        Whether to enable the Ruff linter, an extremely fast Python linter
+        designed as a drop-in replacement for Flake8 (plus dozens of plugins),
+        isort, pydocstyle, pyupgrade, autoflake, and more.
+      '';
+    };
+
+    package = lib.mkPackageOption pkgs "ruff" { };
+  };
+
+  config = lib.mkIf cfg.enable {
+    settings.formatter.ruff-check = {
+      command = cfg.package;
+      options = lib.mkBefore [ "check" "--fix" ];
+      includes = [
+        "*.py"
+        "*.pyi"
+      ];
+    };
+  };
+}

programs/ruff-check.nix

@@ -0,0 +1,33 @@
+{ lib, pkgs, config, ... }:
+let
+  cfg = config.programs.ruff-format;
+in
+{
+  meta.maintainers = [ ];
+
+  imports = [
+    (lib.mkRenamedOptionModule [ "programs" "ruff" "format" ] [ "programs" "ruff-format" "enable" ])
+  ];
+
+  options.programs.ruff-format = {
+    enable = lib.mkEnableOption "ruff formatter" // {
+      description = ''
+        Whether to enable the Ruff formatter, an extremely fast Python code formatter
+        designed as a drop-in replacement for Black.
+      '';
+    };
+
+    package = lib.mkPackageOption pkgs "ruff" { };
+  };
+
+  config = lib.mkIf cfg.enable {
+    settings.formatter.ruff-format = lib.mkIf cfg.enable {
+      command = cfg.package;
+      options = lib.mkBefore [ "format" ];
+      includes = [
+        "*.py"
+        "*.pyi"
+      ];
+    };
+  };
+}