From fdd3f15aa7f29abc44d3f773c64f59d815d68749 Mon Sep 17 00:00:00 2001
From: Valentin Deniaud <vdeniaud@entrouvert.com>
Date: Mon, 12 Jul 2021 11:59:31 +0200
Subject: [PATCH] misc: add pyupgrade files/notes (#55519)

---
 .git-blame-ignore-revs  | 2 ++
 .pre-commit-config.yaml | 5 +++++
 README                  | 8 ++++++++
 tox.ini                 | 3 +--
 4 files changed, 16 insertions(+), 2 deletions(-)

diff --git a/.git-blame-ignore-revs b/.git-blame-ignore-revs
index 156c8060a..223025985 100644
--- a/.git-blame-ignore-revs
+++ b/.git-blame-ignore-revs
@@ -4,3 +4,5 @@
 86d946adcdc784693d733131c2aecafc6caa8cbb
 # misc: remove unicode prefixed strings
 a265c6267e75c831b8294a760f94b9d6cffb92ea
+# misc: apply pyupgrade
+7bc0fcadffd16564cc200cb2f32fae80b3c3a5cf
diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
index c6a0c5762..ce247d61a 100644
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@@ -11,3 +11,8 @@ repos:
     hooks:
     - id: isort
       args: ['--profile', 'black', '--line-length', '110']
+-   repo: https://github.com/asottile/pyupgrade
+    rev: v2.20.0
+    hooks:
+    - id: pyupgrade
+      args: ['--keep-percent-format', '--py37-plus']
diff --git a/README b/README
index abed8869e..f33743a03 100644
--- a/README
+++ b/README
@@ -83,6 +83,14 @@ isort is used to format the imports, using those parameter:
 
     isort --profile black --line-length 110
 
+pyupgrade is used to automatically upgrade syntax, using those parameters:
+
+    pyupgrade --keep-percent-format --py37-plus
+
+There is .pre-commit-config.yaml to use pre-commit to automatically run black,
+isort and pyupgrade before commits. (execute `pre-commit install` to install
+the git hook.)
+
 Support
 =======
 
diff --git a/tox.ini b/tox.ini
index 5731faa21..757a25e9e 100644
--- a/tox.ini
+++ b/tox.ini
@@ -113,8 +113,7 @@ skip_install = true
 deps =
   pre-commit
 commands =
-  pre-commit run black --all-files --show-diff-on-failure
-  pre-commit run isort --all-files --show-diff-on-failure
+  pre-commit run --all-files --show-diff-on-failure
 
 [pytest]
 filterwarnings =