Lint: Create a project-wide `.ruff.toml` settings file (#133124)

Co-authored-by: Alex Waygood <Alex.Waygood@Gmail.com>

.ruff.toml

@@ -0,0 +1,12 @@
+# Default settings for Ruff in CPython
+
+# PYTHON_FOR_REGEN
+target-version = "py310"
+
+# PEP 8
+line-length = 79
+
+# Enable automatic fixes by default.
+# To override this, use ``fix = false`` in a subdirectory's config file
+# or ``--no-fix`` on the command line.
+fix = true

Doc/.ruff.toml

@@ -1,7 +1,6 @@
+extend = "../.ruff.toml"  # Inherit the project-wide settings
+
 target-version = "py312"  # Align with the version in oldest_supported_sphinx
-fix = true
-output-format = "full"
-line-length = 79
 extend-exclude = [
     "includes/*",
     # Temporary exclusions:

Lib/test/.ruff.toml

@@ -1,4 +1,5 @@
-fix = true
+extend = "../../.ruff.toml"  # Inherit the project-wide settings
+
 extend-exclude = [
     # Excluded (run with the other AC files in its own separate ruff job in pre-commit)
     "test_clinic.py",

Tools/build/.ruff.toml

@@ -1,6 +1,4 @@
-target-version = "py310"
-fix = true
-line-length = 79
+extend = "../../.ruff.toml"  # Inherit the project-wide settings
 
 [lint]
 select = [

Tools/clinic/.ruff.toml

@@ -1,5 +1,4 @@
-target-version = "py310"
-fix = true
+extend = "../../.ruff.toml"  # Inherit the project-wide settings
 
 [lint]
 select = [