ruff: create config file and run auto format & fixes

.github/workflows/unit-tests.yml

@@ -9,16 +9,29 @@ on:
     branches: [ main ]
 
 jobs:
+  lint:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - name: Install Python
+        uses: actions/setup-python@v5
+        with:
+          python-version: "3.12"
+      - name: Install dependencies
+        run: |
+          python -m pip install --upgrade pip
+          pip install ruff
+      - name: Ruff linter
+        run: ruff check --output-format=github .
+      - name: Ruff formatter
+        run: ruff format --check --diff .
   test:
     strategy:
       fail-fast: false
       matrix:
         include:
           - os: 'windows-latest'
             python-version: '3.9'
-            rf-version: 'rf5'
-          - os: 'ubuntu-latest'
-            python-version: '3.8'
             rf-version: 'rf4'
           - os: 'ubuntu-latest'
             python-version: '3.9'

.pre-commit-config.yaml

@@ -1,11 +1,7 @@
 repos:
-- repo: https://github.com/pycqa/isort
-  rev: 5.11.5
-  hooks:
-    - id: isort
-      name: isort (python)
-
--   repo: https://github.com/psf/black
-    rev: 22.3.0
+  - repo: https://github.com/astral-sh/ruff-pre-commit
+    # Ruff version.
+    rev: v0.6.9
     hooks:
-    - id: black
+      #- id: ruff
+      - id: ruff-format

pyproject.toml

@@ -1,5 +1,55 @@
-[tool.black]
+[tool.ruff]
 line-length = 120
-[tool.isort]
-profile = "black"
-line_length = 120
+show-fixes = true
+target-version = "py39"  # TODO verify min Python version
+
+lint.select = [
+    "ALL", # include all the rules, including new ones
+]
+exclude = [
+    "tests/utest/testdata/"
+]
+lint.ignore = [
+    #### modules
+    "ANN", # flake8-annotations
+    "COM", # flake8-commas
+    "C90", # mccabe complexity
+    "DJ",  # django
+    "EXE", # flake8-executable
+    "PTH", # flake8-use-pathlib
+    "T10", # debugger
+    "TID", # flake8-tidy-imports
+    #### specific rules
+    "D100",   # ignore missing docs
+    "D101",
+    "D102",
+    "D103",
+    "D104",
+    "D105",
+    "D106",
+    "D107",
+    "D200",
+    "D203",    # blank line before class body
+    "D205",
+    "D212",
+    "D400",
+    "D401",
+    "D415",
+    "E402",    # false positives for local imports
+    "E722",    # bare except
+    "B904",    # Raise from None
+    "EM101",   # No string-literal exceptions !?
+    "EM102",   # No Exceptions with f-strings
+    "PLR0913", # too many arguments to function call
+    "TRY003",  # external messages in exceptions are too verbose
+    "TD002",
+    "TD003",
+    "FIX002",  # too verbose descriptions of todos
+    "PLE1205", # too many arguments for logging
+    "T201", # print in code
+]
+
+[tool.ruff.format]
+quote-style = "double"
+skip-magic-trailing-comma = false
+line-ending = "auto"

robotidy/api.py

@@ -1,6 +1,7 @@
 """
 Methods for transforming Robot Framework ast model programmatically.
 """
+
 from __future__ import annotations
 
 from pathlib import Path
@@ -37,7 +38,8 @@ def transform_model(model, root_dir: str, output: str | None = None, **kwargs) -
     """
     robotidy_class = get_robotidy(root_dir, output, **kwargs)
     disabler_finder = disablers.RegisterDisablers(
-        robotidy_class.config.formatting.start_line, robotidy_class.config.formatting.end_line
+        robotidy_class.config.formatting.start_line,
+        robotidy_class.config.formatting.end_line,
     )
     disabler_finder.visit(model)
     if disabler_finder.is_disabled_in_file(disablers.ALL_TRANSFORMERS):

robotidy/app.py

@@ -61,7 +61,10 @@ def transform_files(self):
                     self.output_diff(model_path, old_model, new_model)
                     changed_files += 1
             except DataError as err:
-                click.echo(f"Failed to decode {source} with an error: {err}\nSkipping file", err=True)
+                click.echo(
+                    f"Failed to decode {source} with an error: {err}\nSkipping file",
+                    err=True,
+                )
                 changed_files = previous_changed_files
                 skipped_files += 1
         return self.formatting_result(all_files, changed_files, skipped_files, stdin)
@@ -109,7 +112,7 @@ def transform_until_stable(self, model, disabler_finder):
     def transform(self, model, disablers):
         old_model = misc.StatementLinesCollector(model)
         for transformer in self.config.transformers:
-            setattr(transformer, "disablers", disablers)  # set dynamically to allow using external transformers
+            transformer.disablers = disablers  # set dynamically to allow using external transformers
             if disablers.is_disabled_in_file(transformer.__class__.__name__):
                 continue
             transformer.visit(model)
@@ -137,11 +140,15 @@ def get_line_ending(self, path: str):
                     return os.linesep
                 if isinstance(f.newlines, str):
                     return f.newlines
-                else:
-                    return f.newlines[0]
+                return f.newlines[0]
         return self.config.formatting.line_sep
 
-    def output_diff(self, path: str, old_model: misc.StatementLinesCollector, new_model: misc.StatementLinesCollector):
+    def output_diff(
+        self,
+        path: str,
+        old_model: misc.StatementLinesCollector,
+        new_model: misc.StatementLinesCollector,
+    ):
         if not self.config.show_diff:
             return
         old = [l + "\n" for l in old_model.text.splitlines()]

robotidy/cli.py

@@ -2,7 +2,7 @@
 
 import sys
 from pathlib import Path
-from typing import Pattern
+from re import Pattern
 
 try:
     import rich_click as click
@@ -13,12 +13,15 @@
 
     RICH_PRESENT = False
 
-from robotidy import app
+from robotidy import app, decorators, exceptions, files, skip, version
 from robotidy import config as config_module
-from robotidy import decorators, exceptions, files, skip, version
 from robotidy.config import RawConfig, csv_list_type, validate_target_version
 from robotidy.rich_console import console
-from robotidy.transformers import TransformConfigMap, TransformConfigParameter, load_transformers
+from robotidy.transformers import (
+    TransformConfigMap,
+    TransformConfigParameter,
+    load_transformers,
+)
 from robotidy.utils import misc
 
 CLI_OPTIONS_LIST = [
@@ -55,7 +58,10 @@
             "--endline",
         ],
     },
-    {"name": "File exclusion", "options": ["--exclude", "--extend-exclude", "--skip-gitignore"]},
+    {
+        "name": "File exclusion",
+        "options": ["--exclude", "--extend-exclude", "--skip-gitignore"],
+    },
     skip.option_group,
     {
         "name": "Other",
@@ -124,7 +130,11 @@ def print_transformer_docs(transformer):
 @decorators.optional_rich
 def print_description(name: str, target_version: int):
     # TODO: --desc works only for default transformers, it should also print custom transformer desc
-    transformers = load_transformers(TransformConfigMap([], [], []), allow_disabled=True, target_version=target_version)
+    transformers = load_transformers(
+        TransformConfigMap([], [], []),
+        allow_disabled=True,
+        target_version=target_version,
+    )
     transformer_by_names = {transformer.name: transformer for transformer in transformers}
     if name == "all":
         for transformer in transformers:
@@ -159,7 +169,11 @@ def print_transformers_list(global_config: config_module.MainConfig):
     table = Table(title="Transformers", header_style="bold red")
     table.add_column("Name", justify="left", no_wrap=True)
     table.add_column("Enabled")
-    transformers = load_transformers(TransformConfigMap([], [], []), allow_disabled=True, target_version=target_version)
+    transformers = load_transformers(
+        TransformConfigMap([], [], []),
+        allow_disabled=True,
+        target_version=target_version,
+    )
     transformers.extend(_load_external_transformers(transformers, config.transformers_config, target_version))
 
     for transformer in transformers:
@@ -194,7 +208,11 @@ def generate_config(global_config: config_module.MainConfig):
         raise exceptions.MissingOptionalTomliWDependencyError()
     target_version = global_config.default.target_version
     config = global_config.default_loaded
-    transformers = load_transformers(TransformConfigMap([], [], []), allow_disabled=True, target_version=target_version)
+    transformers = load_transformers(
+        TransformConfigMap([], [], []),
+        allow_disabled=True,
+        target_version=target_version,
+    )
     transformers.extend(_load_external_transformers(transformers, config.transformers_config, target_version))
 
     toml_config = {

robotidy/config.py

@@ -8,7 +8,7 @@
 from collections import namedtuple
 from dataclasses import dataclass, field
 from pathlib import Path
-from typing import Pattern
+from re import Pattern
 
 try:
     from robot.api import Languages  # RF 6.0
@@ -19,7 +19,12 @@
 from click.core import ParameterSource
 
 from robotidy import exceptions, files, skip
-from robotidy.transformers import TransformConfig, TransformConfigMap, convert_transform_config, load_transformers
+from robotidy.transformers import (
+    TransformConfig,
+    TransformConfigMap,
+    convert_transform_config,
+    load_transformers,
+)
 from robotidy.utils import misc
 
 
@@ -60,12 +65,11 @@ def __init__(
     def get_line_sep(line_sep):
         if line_sep == "windows":
             return "\r\n"
-        elif line_sep == "unix":
+        if line_sep == "unix":
             return "\n"
-        elif line_sep == "auto":
+        if line_sep == "auto":
             return "auto"
-        else:
-            return os.linesep
+        return os.linesep
 
 
 def validate_target_version(value: str | None) -> int | None:
@@ -98,7 +102,12 @@ def convert_transformers_config(
     is_config: bool = False,
 ) -> list[TransformConfig]:
     return [
-        TransformConfig(tr, force_include=force_included, custom_transformer=custom_transformer, is_config=is_config)
+        TransformConfig(
+            tr,
+            force_include=force_included,
+            custom_transformer=custom_transformer,
+            is_config=is_config,
+        )
         for tr in config.get(param_name, ())
     ]
 
@@ -180,13 +189,17 @@ def from_cli(cls, ctx: click.Context, **kwargs):
                 defined_in_cli.add(option)
         return cls(**kwargs, defined_in_cli=defined_in_cli)
 
-    def from_config_file(self, config: dict, config_path: Path) -> "RawConfig":
-        """Creates new RawConfig instance from dictionary.
+    def from_config_file(self, config: dict, config_path: Path) -> RawConfig:
+        """
+        Creates new RawConfig instance from dictionary.
 
         Dictionary key:values needs to be normalized and parsed to correct types.
         """
         options_map = map_class_fields_with_their_types(self)
-        parsed_config = {"defined_in_config": {"defined_in_config", "config_path"}, "config_path": config_path}
+        parsed_config = {
+            "defined_in_config": {"defined_in_config", "config_path"},
+            "config_path": config_path,
+        }
         for key, value in config.items():
             # workaround to be able to use two option names for same action - backward compatibility change
             if key == "load_transformers":
@@ -206,16 +219,20 @@ def from_config_file(self, config: dict, config_path: Path) -> "RawConfig":
                 parsed_config[key] = [convert_transform_config(val, key) for val in value]
             elif key == "src":
                 parsed_config[key] = tuple(value)
-            elif value_type in ("Pattern", Pattern):  # future typing for 3.8 provides type as str
+            elif value_type in (
+                "Pattern",
+                Pattern,
+            ):  # future typing for 3.8 provides type as str
                 parsed_config[key] = misc.validate_regex(value)
             else:
                 parsed_config[key] = value
             parsed_config["defined_in_config"].add(key)
         from_config = RawConfig(**parsed_config)
         return self.merge_with_config_file(from_config)
 
-    def merge_with_config_file(self, config: "RawConfig") -> "RawConfig":
-        """Merge cli config with the configuration file config.
+    def merge_with_config_file(self, config: RawConfig) -> RawConfig:
+        """
+        Merge cli config with the configuration file config.
 
         Use configuration file parameter value only if it was not defined in the cli already.
         """
@@ -253,7 +270,8 @@ def load_config_from_option(cli_config: RawConfig) -> RawConfig:
         return cli_config
 
     def get_sources(self, sources: tuple[str, ...]) -> tuple[str, ...] | None:
-        """Get list of sources to be transformed by Robotidy.
+        """
+        Get list of sources to be transformed by Robotidy.
 
         If the sources tuple is empty, look for most common configuration file and load sources from there.
         """
@@ -273,7 +291,10 @@ def get_sources(self, sources: tuple[str, ...]) -> tuple[str, ...] | None:
 
     def get_sources_with_configs(self):
         sources = files.get_paths(
-            self.sources, self.default.exclude, self.default.extend_exclude, self.default.skip_gitignore
+            self.sources,
+            self.default.exclude,
+            self.default.extend_exclude,
+            self.default.skip_gitignore,
         )
         for source in sources:
             if self.default.config:
@@ -350,7 +371,7 @@ def set_color_mode(color: bool) -> bool:
         return "NO_COLOR" not in os.environ
 
     @classmethod
-    def from_raw_config(cls, raw_config: "RawConfig"):
+    def from_raw_config(cls, raw_config: RawConfig):
         skip_config = skip.SkipConfig(
             documentation=raw_config.skip_documentation,
             return_values=raw_config.skip_return_values,
@@ -416,8 +437,8 @@ def load_transformers(self, transformers_config: TransformConfigMap, force_order
         )
         for transformer in transformers:
             # inject global settings TODO: handle it better
-            setattr(transformer.instance, "formatting_config", self.formatting)
-            setattr(transformer.instance, "transformers", self.transformers_lookup)
-            setattr(transformer.instance, "languages", self.language)
+            transformer.instance.formatting_config = self.formatting
+            transformer.instance.transformers = self.transformers_lookup
+            transformer.instance.languages = self.language
             self.transformers.append(transformer.instance)
             self.transformers_lookup[transformer.name] = transformer.instance