Introduce ruff, ditch flake8, black and friends

README.md

@@ -43,10 +43,7 @@ A [cookiecutter](https://cookiecutter.readthedocs.io/en/latest/README.html) (pro
 * [Poetry](https://python-poetry.org/docs/) for managing dependencies and packaging
 * [pre-commit](https://pre-commit.com/) for running all the goodies listed below
 * [mypy](https://flake8.pycqa.org/en/latest/) for static type checking
-* [flake8](https://flake8.pycqa.org/en/latest/) (with multiple plugins) for linting (e.g. style and complexity checks, commented code, etc.)
-* [black](https://black.readthedocs.io/en/stable/) for auto-formatting the code
-* [isort](https://pycqa.github.io/isort/) for auto-sorting imports
-* [autoflake](https://github.com/myint/autoflake) for auto-removing unused imports
+* [ruff](https://beta.ruff.rs/docs/) for automatic formatting, linting and automatically fixing some linting errors
 
 #### Automation
 

{{cookiecutter.project_slug}}/.pre-commit-config.yaml

@@ -15,38 +15,26 @@ repos:
       - id: mixed-line-ending
 -   repo: local
     hooks:
-      - id: autoflake
-        name: autoflake
-        entry: poetry run autoflake -r -i --remove-all-unused-imports --remove-unused-variables
+      - id: ruff-format
+        name: ruff-format
+        entry: poetry run ruff format
+        require_serial: true
         language: system
         types: [ python ]
-      - id: isort
-        name: isort
-        entry: poetry run isort
-        language: system
-        types: [python]
-      - id: black
-        name: black
-        entry: poetry run black
-        language: system
-        types: [python]
-      - id: pyupgrade
-        name: pyupgrade
-        entry: poetry run pyupgrade --py37-plus
+      - id: ruff
+        name: ruff
+        # Add --fix, in case you want it to autofix when this hook runs
+        entry: poetry run ruff check --force-exclude
+        require_serial: true
         language: system
-        types: [python]
+        types: [ python ]
       - id: mypy
         name: mypy
         entry: poetry run mypy .
         require_serial: true
         language: system
         types: [python]
         pass_filenames: false
-      - id: flake8
-        name: flake8
-        entry: poetry run flake8
-        language: system
-        types: [python]
       - id: kacl-verify
         name: kacl-verify
         entry: poetry run kacl-cli verify

{{cookiecutter.project_slug}}/README.md

@@ -66,7 +66,7 @@ Find the draft release from the
 
 ### Pre-commit
 
-Pre-commit hooks run all the auto-formatters (e.g. `black`, `isort`), linters (e.g. `mypy`, `flake8`), and other quality
+Pre-commit hooks run all the auto-formatting (`ruff format`), linters (e.g. `ruff` and `mypy`), and other quality
  checks to make sure the changeset is in good shape before a commit/push happens.
 
 You can install the hooks with (runs for each commit):

{{cookiecutter.project_slug}}/pyproject.toml

@@ -35,40 +35,51 @@ packages = [
 python = ">=3.8.1, <4.0"
 
 [tool.poetry.dev-dependencies]
-autoflake = "*"
-black = "*"
-flake8 = "*"
-flake8-bugbear = "*"
-flake8-builtins = "*"
-flake8-comprehensions = "*"
-flake8-debugger = "*"
-flake8-eradicate = "*"
-flake8-logging-format = "*"
-isort = "*"
 mkdocstrings = {version = ">=0.18", extras = ["python"]}
 mkdocs-material = "*"
 mypy = "*"
-pep8-naming = "*"
 pre-commit = "*"
 pymdown-extensions = "*"
 pytest = "*"
 pytest-github-actions-annotate-failures = "*"
 pytest-cov = "*"
 python-kacl = "*"
-pyupgrade = "*"
-tryceratops = "*"
+ruff = ">=0.2.0"
 
 [build-system]
 requires = ["poetry-core>=1.0.0"]
 build-backend = "poetry.core.masonry.api"
 
-[tool.isort]
-profile = "black"
-src_paths = ["src", "tests"]
+[tool.ruff]
+target-version = "py38" # The lowest supported version
 
-[tool.black]
-target-version = ["py38", "py39", "py310", "py311", "py312"]
-include = '\.pyi?$'
+[tool.ruff.lint]
+# By default, enable all the lint rules.
+# Add to the ignore list below if you don't want some rules.
+# If you need some ignores for certain modules, see tool.ruff.lint.per-file-ignores below.
+# For individual ignore cases, prefer inline `# noqa`s within the code.
+select = ["ALL"]
+ignore = [
+    "ANN",      # Type hints related, let mypy handle these.
+    "D",        # Docstrings related, way too strict to our taste
+    ]
+
+[tool.ruff.lint.per-file-ignores]
+"tests/**" = [
+    "S101",     # "Use of `assert` detected"
+    "ARG",      # "Unused function argument". Fixtures are often unused.
+    "S105",     # "Possible hardcoded password".
+]
+
+[tool.ruff.lint.mccabe]
+max-complexity = 10
+
+[tool.ruff.lint.pep8-naming]
+classmethod-decorators = [
+    "classmethod",
+    "pydantic.validator",
+    "pydantic.root_validator",
+]
 
 [tool.pytest.ini_options]
 addopts = """\