From 8eaa7c95dc31ce681e010259199466c5ad082390 Mon Sep 17 00:00:00 2001
From: Adam Turner <9087854+aa-turner@users.noreply.github.com>
Date: Tue, 29 Apr 2025 02:43:11 +0100
Subject: [PATCH 1/4] Create a project-wide ``.ruff.toml`` settings file

---
 .ruff.toml              | 13 +++++++++++++
 Doc/.ruff.toml          |  5 ++---
 Lib/test/.ruff.toml     |  3 ++-
 Tools/build/.ruff.toml  |  4 +---
 Tools/clinic/.ruff.toml |  3 +--
 5 files changed, 19 insertions(+), 9 deletions(-)
 create mode 100644 .ruff.toml

diff --git a/.ruff.toml b/.ruff.toml
new file mode 100644
index 00000000000000..83c90b37470c75
--- /dev/null
+++ b/.ruff.toml
@@ -0,0 +1,13 @@
+# Default settings for Ruff in CPython
+
+# PYTHON_FOR_REGEN
+target-version = "py310"
+
+# PEP 8
+line-length = 79
+
+# Nicer diagnostic output
+output-format = "full"
+
+# Enable automatic fixes (use ``fix = false`` or ``--no-fix`` to override)
+fix = true
diff --git a/Doc/.ruff.toml b/Doc/.ruff.toml
index 111ce03b91df38..3e676e13c3f41a 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 fa8b2b42579b4a..5af88e2f8eeca8 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 e4f024333adf1a..c084c06144adaf 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 c019572d0cb186..5033887df0c1cd 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 = [

From fb22936d93eef87699fe8465645de2ec43d99cb5 Mon Sep 17 00:00:00 2001
From: Adam Turner <9087854+AA-Turner@users.noreply.github.com>
Date: Thu, 1 May 2025 09:21:55 +0100
Subject: [PATCH 2/4] Elaborate

Co-authored-by: Alex Waygood <Alex.Waygood@Gmail.com>
---
 .ruff.toml | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/.ruff.toml b/.ruff.toml
index 83c90b37470c75..677f191e350290 100644
--- a/.ruff.toml
+++ b/.ruff.toml
@@ -9,5 +9,7 @@ line-length = 79
 # Nicer diagnostic output
 output-format = "full"
 
-# Enable automatic fixes (use ``fix = false`` or ``--no-fix`` to override)
+# Enable automatic fixes by default.
+# To override this, use ``fix = false`` in a subdirectory's config file
+# or ``--no-fix`` on the CLI
 fix = true

From 322b479cd2f8f7cf1d86ae6fa88e02e51825642f Mon Sep 17 00:00:00 2001
From: Adam Turner <9087854+AA-Turner@users.noreply.github.com>
Date: Thu, 1 May 2025 09:22:42 +0100
Subject: [PATCH 3/4] Remove redundant setting

Co-authored-by: Alex Waygood <Alex.Waygood@Gmail.com>
---
 .ruff.toml | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/.ruff.toml b/.ruff.toml
index 677f191e350290..b893ebca436371 100644
--- a/.ruff.toml
+++ b/.ruff.toml
@@ -6,9 +6,6 @@ target-version = "py310"
 # PEP 8
 line-length = 79
 
-# Nicer diagnostic output
-output-format = "full"
-
 # Enable automatic fixes by default.
 # To override this, use ``fix = false`` in a subdirectory's config file
 # or ``--no-fix`` on the CLI

From 6d91f12a63eaa51b9be9ab7274ef3145878886e6 Mon Sep 17 00:00:00 2001
From: Adam Turner <9087854+AA-Turner@users.noreply.github.com>
Date: Thu, 1 May 2025 09:23:08 +0100
Subject: [PATCH 4/4] Update .ruff.toml

---
 .ruff.toml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/.ruff.toml b/.ruff.toml
index b893ebca436371..1c015fa88415bc 100644
--- a/.ruff.toml
+++ b/.ruff.toml
@@ -8,5 +8,5 @@ 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 CLI
+# or ``--no-fix`` on the command line.
 fix = true