From fe3c7e10d95235e3d7bea9273d61a968cdc83d86 Mon Sep 17 00:00:00 2001
From: Adam Turner <9087854+AA-Turner@users.noreply.github.com>
Date: Thu, 1 May 2025 09:28:44 +0100
Subject: [PATCH] Lint: Create a project-wide ``.ruff.toml`` settings file
 (#133124)

Co-authored-by: Alex Waygood <Alex.Waygood@Gmail.com>
---
 .ruff.toml              | 12 ++++++++++++
 Doc/.ruff.toml          |  5 ++---
 Lib/test/.ruff.toml     |  3 ++-
 Tools/build/.ruff.toml  |  4 +---
 Tools/clinic/.ruff.toml |  3 +--
 5 files changed, 18 insertions(+), 9 deletions(-)
 create mode 100644 .ruff.toml

diff --git a/.ruff.toml b/.ruff.toml
new file mode 100644
index 00000000000..1c015fa8841
--- /dev/null
+++ b/.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
diff --git a/Doc/.ruff.toml b/Doc/.ruff.toml
index 111ce03b91d..3e676e13c3f 100644
--- a/Doc/.ruff.toml
+++ b/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:
diff --git a/Lib/test/.ruff.toml b/Lib/test/.ruff.toml
index 54126bf3261..a1eac32a83a 100644
--- a/Lib/test/.ruff.toml
+++ b/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",
diff --git a/Tools/build/.ruff.toml b/Tools/build/.ruff.toml
index e4f024333ad..c084c06144a 100644
--- a/Tools/build/.ruff.toml
+++ b/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 = [
diff --git a/Tools/clinic/.ruff.toml b/Tools/clinic/.ruff.toml
index c019572d0cb..5033887df0c 100644
--- a/Tools/clinic/.ruff.toml
+++ b/Tools/clinic/.ruff.toml
@@ -1,5 +1,4 @@
-target-version = "py310"
-fix = true
+extend = "../../.ruff.toml"  # Inherit the project-wide settings
 
 [lint]
 select = [