Try out ruff.

Use it for everything except isort, because it seems to not have an
equivalent of isort's from-first.

Author: Julian

.flake8

@@ -12,18 +12,14 @@ repos:
       - id: mixed-line-ending
         args: [--fix, lf]
       - id: trailing-whitespace
+  - repo: https://github.com/charliermarsh/ruff-pre-commit
+    rev: "v0.0.253"
+    hooks:
+      - id: ruff
   - repo: https://github.com/PyCQA/isort
     rev: 5.12.0
     hooks:
       - id: isort
-  - repo: https://github.com/pycqa/flake8
-    rev: "6.0.0"
-    hooks:
-      - id: flake8
-  - repo: https://github.com/asottile/pyupgrade
-    rev: v3.3.1
-    hooks:
-      - id: pyupgrade
   - repo: https://github.com/psf/black
     rev: 23.1.0
     hooks:

.pre-commit-config.yaml

@@ -48,16 +48,8 @@ def readme(session):
 
 @session(tags=["style"])
 def style(session):
-    session.install(
-        "flake8",
-        "flake8-broken-line",
-        "flake8-bugbear",
-        "flake8-commas",
-        "flake8-docstrings",
-        "flake8-quotes",
-        "flake8-tidy-imports",
-    )
-    session.run("python", "-m", "flake8", REFERENCING, DOCS, __file__)
+    session.install("ruff")
+    session.run("ruff", "check", ROOT)
 
 
 @session()

noxfile.py

@@ -66,3 +66,41 @@ exclude = [
     "**/tests/__init__.py",
     "**/tests/test_*.py",
 ]
+
+[tool.ruff]
+line-length = 79
+target-version = "py38"
+select = ["B", "D", "E", "F", "Q", "UP", "W"]
+ignore = [
+  # raise SomeException(...) is fine.
+  "B904",
+  # It's fine to not have docstrings for magic methods.
+  "D105",
+  # This rule makes diffs uglier when expanding docstrings (and it's uglier)
+  "D200",
+  # No blank lines before docstrings.
+  "D203",
+  # Start docstrings on the second line.
+  "D212",
+  # This rule misses sassy docstrings ending with ! or ?.
+  "D400",
+  # Section headers should end with a colon not a newline
+  "D406",
+  # Underlines aren't needed
+  "D407",
+  # Plz spaces after section headers
+  "D412",
+]
+extend-exclude = ["suite"]
+
+[tool.ruff.flake8-quotes]
+docstring-quotes = "double"
+
+[tool.ruff.per-file-ignores]
+"docs/*" = ["D"]
+"referencing/tests/*" = ["D"]
+"noxfile.py" = ["D"]
+
+[tool.ruff.pyupgrade]
+# We support 3.8 + 3.9
+keep-runtime-typing = true