Add linting

Makefile

@@ -3,36 +3,34 @@
 
 SHELL=/bin/bash -eu -o pipefail
 
-.venv/bin/activate:
-	python3.9 -m venv --prompt $(shell basename $(shell pwd)) .venv
-
-.PHONY: install
-install: .venv/bin/activate  # Install Python dependencies
-	./.venv/bin/pip install -r requirements.txt
-	./.venv/bin/pip install -e .
-
-.PHONY: install-dev
-install-dev: .venv/bin/activate  # Install Python dependencies
-	./.venv/bin/pip install -r requirements/dev.txt
-	./.venv/bin/pip install -e .
-
-upgrade-pip:
-	pip install --upgrade pip wheel setuptools pip-tools
-
-requirements.txt: pyproject.toml
+requirements.txt: pyproject.toml  # Generate requirements.txt (and requirements-dev.txt) from pyproject.toml
 	./bin/lock-requirements.sh
 
 .PHONY: upgrade-requirements
-upgrade-requirements:
+upgrade-requirements:  # Upgrade all requirements to the latest version
 	./bin/lock-requirements.sh --upgrade
 
 {{ project_name }}.yml:
 	./.venv/bin/generate-config > $@
 
+
+
 .PHONY: fmt
-fmt:
+fmt:  # Format Python code
 	ruff format .
 
+.PHONY: lint
+lint:  # Lint Python code
+	ruff check .
+
+.PHONY: fix
+fix:  # Fix linting errors
+	ruff check --fix .
+
+.PHONY: test
+test:  # Run tests
+	python manage.py test --parallel
+
 .PHONY: help
 help:
 	@echo -e "Available make commands:"

manage.py

@@ -4,17 +4,10 @@
 import sys
 
 
-def main():
+def main() -> None:
     """Run administrative tasks."""
     os.environ.setdefault("DJANGO_SETTINGS_MODULE", "{{ project_name }}.settings")
-    try:
-        from django.core.management import execute_from_command_line
-    except ImportError as exc:
-        raise ImportError(
-            "Couldn't import Django. Are you sure it's installed and "
-            "available on your PYTHONPATH environment variable? Did you "
-            "forget to activate a virtual environment?"
-        ) from exc
+    from django.core.management import execute_from_command_line
     execute_from_command_line(sys.argv)
 
 

project_name/config.py

@@ -1,6 +1,5 @@
 import base64
 import os
-from typing import List
 from pathlib import Path
 
 from goodconf import Field, GoodConf
@@ -14,7 +13,7 @@ class AppConfig(GoodConf):
     """Configuration for {{ project_name }}"""
 
     DEBUG: bool = False
-    ALLOWED_HOSTS: List[str] = Field(
+    ALLOWED_HOSTS: list[str] = Field(
         default=["*"],
         description="Hosts allowed to serve the site "
         "https://docs.djangoproject.com/en/{{ docs_version }}/ref/settings/#allowed-hosts",
@@ -40,7 +39,3 @@ class Config:
 
 
 config = AppConfig()
-
-
-def generate_config():
-    print(AppConfig.generate_yaml(DEBUG=True))

project_name/settings.py

@@ -10,6 +10,7 @@
 https://docs.djangoproject.com/en/{{ docs_version }}/ref/settings/
 """
 
+import re
 from pathlib import Path
 
 import dj_database_url
@@ -137,7 +138,7 @@
 STATICFILES_STORAGE = "whitenoise.storage.CompressedManifestStaticFilesStorage"
 
 # Match filename with 12 hex digits before the extension
-WHITENOISE_IMMUTABLE_FILE_TEST = lambda path, url: re.match(  # noqa: E731
+WHITENOISE_IMMUTABLE_FILE_TEST = lambda _, url: re.match(  # noqa: E731
     r"^.+\.[0-9a-f]{12}\..+$", url
 )
 

project_name/wsgi.py

@@ -20,10 +20,6 @@
 # This application object is used by any WSGI server configured to use this
 # file. This includes Django's development server, if the WSGI_APPLICATION
 # setting points here.
-from django.core.wsgi import get_wsgi_application
+from django.core.wsgi import get_wsgi_application  # noqa: E402
 
 application = get_wsgi_application()
-
-# Apply WSGI middleware here.
-# from helloworld.wsgi import HelloWorldApplication
-# application = HelloWorldApplication(application)

pyproject.toml

@@ -29,23 +29,26 @@ packages = { "find" = { } }
 include-package-data = true
 
 [tool.ruff]
-target-version = "py12"
+target-version = "py312"
 exclude = ["migrations"]
+
+[tool.ruff.lint]
 select = ["ALL"]
 ignore = [
   "ANN101",   # Missing Type Annotation for "self"
   "ANN401",   # Dynamically typed expressions (typing.Any) are disallowed in `**kwargs`"
   "ARG001",   # Unused function argument (request, ...)
   "ARG002",   # Unused method argument (*args, **kwargs)
   "D",        # Missing or badly formatted docstrings
+  "E501",     # Let the formatter handle long lines
   "FBT",      # Flake Boolean Trap (don't use arg=True in functions)
   "RUF012",   # Mutable class attributes https://github.com/astral-sh/ruff/issues/5243
 
   "COM812",   # (ruff format) Checks for the absence of trailing commas
   "ISC001",   # (ruff format) Checks for implicitly concatenated strings on a single line
 ]
 
-[tool.ruff.extend-per-file-ignores]
+[tool.ruff.lint.extend-per-file-ignores]
 # Also ignore `E402` in all `__init__.py` files.
 "test_*.py" = [
   "S101",     # S101 Use of `assert` detected