Introduce ruff (eventually replacing autoflake, pyupgrade, flake8) (#86224)

script/lint_and_test.py

@@ -6,6 +6,7 @@ This is NOT a full CI/linting replacement, only a quick check during development
 """
 import asyncio
 from collections import namedtuple
+import itertools
 import os
 import re
 import shlex
@@ -115,9 +116,9 @@ async def pylint(files):
     return res
 
 
-async def flake8(files):
-    """Exec flake8."""
-    _, log = await async_exec("pre-commit", "run", "flake8", "--files", *files)
+async def _ruff_or_flake8(tool, files):
+    """Exec ruff or flake8."""
+    _, log = await async_exec("pre-commit", "run", tool, "--files", *files)
     res = []
     for line in log.splitlines():
         line = line.split(":")
@@ -128,17 +129,33 @@ async def flake8(files):
     return res
 
 
+async def flake8(files):
+    """Exec flake8."""
+    return await _ruff_or_flake8("flake8", files)
+
+
+async def ruff(files):
+    """Exec ruff."""
+    return await _ruff_or_flake8("ruff", files)
+
+
 async def lint(files):
     """Perform lint."""
     files = [file for file in files if os.path.isfile(file)]
-    fres, pres = await asyncio.gather(flake8(files), pylint(files))
-
-    res = fres + pres
-    res.sort(key=lambda item: item.file)
+    res = sorted(
+        itertools.chain(
+            *await asyncio.gather(
+                flake8(files),
+                pylint(files),
+                ruff(files),
+            )
+        ),
+        key=lambda item: item.file,
+    )
     if res:
-        print("Pylint & Flake8 errors:")
+        print("Lint errors:")
     else:
-        printc(PASS, "Pylint and Flake8 passed")
+        printc(PASS, "Lint passed")
 
     lint_ok = True
     for err in res: