chore: setup ruff (#89980)

combo/apps/lingo/apps.py

@@ -72,7 +72,7 @@ class AppConfig(django.apps.AppConfig):
         to_expire = Transaction.objects.filter(
             start_date__lt=now - datetime.timedelta(hours=1), end_date__isnull=True
         )
-        for transaction in to_expire:
+        for transaction in to_expire:  # noqa: F402
             logger.info('transaction %r is expired', transaction.order_id)
             transaction.status = EXPIRED
             transaction.save()

combo/public/templatetags/combo.py

@@ -33,7 +33,7 @@ try:
     TOKEN_VAR = TokenType.VAR
     TOKEN_COMMENT = TokenType.COMMENT
 except ImportError:
-    from django.template.base import TOKEN_BLOCK, TOKEN_VAR, TOKEN_COMMENT
+    from django.template.base import TOKEN_BLOCK, TOKEN_COMMENT, TOKEN_VAR
 
 from django.template import Template, TemplateSyntaxError, defaultfilters
 from django.template.defaultfilters import stringfilter

noxfile.py

@@ -112,6 +112,12 @@ def pylint(session):
         session.run(*pylint_command)
 
 
+@nox.session
+def ruff(session):
+    setup_venv(session, 'ruff')
+    session.run('ruff', 'check', *session.posargs)
+
+
 @nox.session
 def codestyle(session):
     session.install('pre-commit')

ruff.toml

@@ -0,0 +1,26 @@
+include = ["combo/**/*.py", "tests/**/*.py"]
+line-length = 110
+
+[lint]
+select = [
+  "I", # isort
+  "PL", # pylint
+  "UP", # pyupgrade
+  "F", # pyflakes (ruff default)
+]
+
+ignore = [
+  "UP031", # Use format specifiers instead of percent format
+  "PLR2004", # Magic value used in comparison, consider replacing ... with a constant variable
+  "PLW2901", # Outer `for` loop variable `values` overwritten by inner `for` loop target
+  "PLR5501", # [*] Use `elif` instead of `else` then `if`, to reduce indentation
+  "UP032", # [*] Use f-string instead of `format` call
+  "F401", # [...] imported but unused; consider removing, adding to `__all__`, or using a redundant alias 
+]
+
+[lint.pylint]
+max-args=19
+max-locals=15
+max-returns=19
+max-branches=36
+max-statements=271