Use Ruff for Python static analysis and formatting

.gitignore

@@ -1,4 +1,5 @@
 staticfiles/
+/.ruff_cache/
 
 # Created by https://www.gitignore.io/api/django
 # Edit at https://www.gitignore.io/?templates=django
@@ -123,4 +124,4 @@ dmypy.json
 # End of https://www.gitignore.io/api/django
 
 # Editor settings
-.vscode 
+.vscode

dandiapi/__init__.py

@@ -1,3 +1,5 @@
+from __future__ import annotations
+
 from importlib.metadata import version
 
 # This project module is imported for us when Django starts. To ensure that Celery app is always

dandiapi/analytics/apps.py

@@ -1,3 +1,5 @@
+from __future__ import annotations
+
 from django.apps import AppConfig
 
 

dandiapi/analytics/migrations/0001_initial_v2.py

@@ -1,3 +1,5 @@
+from __future__ import annotations
+
 import django.core.validators
 from django.db import migrations, models
 

dandiapi/analytics/models.py

@@ -1,3 +1,5 @@
+from __future__ import annotations
+
 from django.core.validators import RegexValidator
 from django.db import models
 

dandiapi/analytics/tasks/__init__.py

@@ -1,6 +1,8 @@
+from __future__ import annotations
+
 from collections import Counter
-from collections.abc import Generator
 from pathlib import Path
+from typing import TYPE_CHECKING
 
 from celery.app import shared_task
 from celery.utils.log import get_task_logger
@@ -15,6 +17,9 @@
 from dandiapi.api.models.asset import AssetBlob, EmbargoedAssetBlob
 from dandiapi.api.storage import get_boto_client, get_embargo_storage, get_storage
 
+if TYPE_CHECKING:
+    from collections.abc import Generator
+
 logger = get_task_logger(__name__)
 
 # should be one of the DANDI_DANDISETS_*_LOG_BUCKET_NAME settings
@@ -77,14 +82,14 @@ def process_s3_log_file_task(bucket: LogBucket, s3_log_key: str) -> None:
         return
 
     s3 = get_boto_client(get_storage() if not embargoed else get_embargo_storage())
-    BlobModel = AssetBlob if not embargoed else EmbargoedAssetBlob
+    BlobModel = AssetBlob if not embargoed else EmbargoedAssetBlob  # noqa: N806
     data = s3.get_object(Bucket=bucket, Key=s3_log_key)
     download_counts = Counter()
 
     for log_entry in s3logparse.parse_log_lines(
         line.decode('utf8') for line in data['Body'].iter_lines()
     ):
-        if log_entry.operation == 'REST.GET.OBJECT' and log_entry.status_code == 200:
+        if log_entry.operation == 'REST.GET.OBJECT' and log_entry.status_code == 200:  # noqa: PLR2004
             download_counts.update({log_entry.s3_key: 1})
 
     with transaction.atomic():

dandiapi/analytics/tests/test_download_counts.py

@@ -1,3 +1,5 @@
+from __future__ import annotations
+
 from django.conf import settings
 import pytest
 

dandiapi/api/__init__.py

@@ -1,3 +1,4 @@
-# flake8: noqa
+from __future__ import annotations
+
 # TODO: remove this after migration is complete
-import dandiapi.api.user_migration
+import dandiapi.api.user_migration  # noqa: F401

dandiapi/api/admin.py

@@ -1,4 +1,7 @@
+from __future__ import annotations
+
 import csv
+from typing import TYPE_CHECKING
 
 from allauth.socialaccount.models import SocialAccount
 from django.contrib import admin, messages
@@ -8,7 +11,6 @@
 from django.db.models.aggregates import Count
 from django.db.models.query import Prefetch, QuerySet
 from django.forms.models import BaseInlineFormSet
-from django.http.request import HttpRequest
 from django.http.response import HttpResponse
 from django.urls import reverse
 from django.utils.html import format_html
@@ -26,6 +28,9 @@
 from dandiapi.api.views.users import social_account_to_dict
 from dandiapi.zarr.tasks import ingest_dandiset_zarrs
 
+if TYPE_CHECKING:
+    from django.http.request import HttpRequest
+
 admin.site.site_header = 'DANDI Admin'
 admin.site.site_title = 'DANDI Admin'
 

dandiapi/api/apps.py

@@ -1,3 +1,5 @@
+from __future__ import annotations
+
 import logging
 import re
 
@@ -14,7 +16,7 @@ class PublishConfig(AppConfig):
     verbose_name = 'DANDI: Publish'
 
     @staticmethod
-    def _get_sentry_performance_sample_rate(*args, **kwargs) -> float:
+    def _get_sentry_performance_sample_rate(*args, **kwargs) -> float:  # noqa: ARG004
         from dandiapi.api.models.asset import Asset
         from dandiapi.api.models.dandiset import Dandiset
         from dandiapi.api.models.version import Version
@@ -44,7 +46,8 @@ def is_noisy():
         return 0.001 if is_noisy() else 0.01
 
     def ready(self):
-        import dandiapi.api.checks  # noqa: F401
+        # RUF100 is caused by https://github.com/astral-sh/ruff/issues/60
+        import dandiapi.api.checks  # noqa: F401, RUF100
         import dandiapi.api.signals  # noqa: F401
 
         if hasattr(settings, 'SENTRY_DSN'):

dandiapi/api/checks.py

@@ -1,3 +1,5 @@
+from __future__ import annotations
+
 from django.conf import settings
 from django.core.checks import Error, register
 

dandiapi/api/doi.py

@@ -1,9 +1,13 @@
+from __future__ import annotations
+
 import logging
+from typing import TYPE_CHECKING
 
 from django.conf import settings
 import requests
 
-from dandiapi.api.models import Version
+if TYPE_CHECKING:
+    from dandiapi.api.models import Version
 
 # All of the required DOI configuration settings
 DANDI_DOI_SETTINGS = [

dandiapi/api/garbage.py

@@ -1,11 +1,16 @@
+from __future__ import annotations
+
 from datetime import timedelta
+from typing import TYPE_CHECKING
 
 from django.db.models import Exists, OuterRef
-from django.db.models.query import QuerySet
 from django.utils import timezone
 
 from dandiapi.api.models import Asset, Version
 
+if TYPE_CHECKING:
+    from django.db.models.query import QuerySet
+
 # How long after the last modification things are eligible for deletion
 STALE_TIME_INTERVAL = timedelta(days=7)
 

dandiapi/api/mail.py

@@ -1,14 +1,18 @@
 from __future__ import annotations
 
-from collections.abc import Iterable
 import logging
+from typing import TYPE_CHECKING
 
-from allauth.socialaccount.models import SocialAccount
 from django.conf import settings
-from django.contrib.auth.models import User
 from django.core import mail
 from django.template.loader import render_to_string
 
+if TYPE_CHECKING:
+    from collections.abc import Iterable
+
+    from allauth.socialaccount.models import SocialAccount
+    from django.contrib.auth.models import User
+
 logger = logging.getLogger(__name__)
 
 BASE_RENDER_CONTEXT = {

dandiapi/api/management/commands/cleanup_blobs.py

@@ -1,3 +1,5 @@
+from __future__ import annotations
+
 from django.conf import settings
 import djclick as click
 from storages.backends.s3 import S3Storage

dandiapi/api/management/commands/collect_garbage.py

@@ -1,3 +1,5 @@
+from __future__ import annotations
+
 import djclick as click
 
 from dandiapi.api.garbage import stale_assets

dandiapi/api/management/commands/create_dev_dandiset.py

@@ -1,3 +1,5 @@
+from __future__ import annotations
+
 from uuid import uuid4
 
 from django.conf import settings

dandiapi/api/management/commands/depose_placeholder.py

@@ -1,3 +1,5 @@
+from __future__ import annotations
+
 from django.contrib.auth.models import User
 import djclick as click
 

dandiapi/api/management/commands/depose_placeholders.py

@@ -1,3 +1,5 @@
+from __future__ import annotations
+
 from django.contrib.auth.models import User
 import djclick as click
 

dandiapi/api/management/commands/ingest_asset_paths.py

@@ -1,3 +1,5 @@
+from __future__ import annotations
+
 import djclick as click
 
 from dandiapi.api.asset_paths import add_version_asset_paths

dandiapi/api/management/commands/list_placeholders.py

@@ -1,3 +1,5 @@
+from __future__ import annotations
+
 from django.contrib.auth.models import User
 import djclick as click
 

dandiapi/api/management/commands/migrate_published_version_metadata.py

@@ -1,3 +1,5 @@
+from __future__ import annotations
+
 from difflib import ndiff
 from pprint import pformat
 
@@ -14,7 +16,8 @@
 @click.argument('to_version')
 def migrate_published_version_metadata(*, dandiset: str, published_version: str, to_version: str):
     click.echo(
-        f'Migrating published version {dandiset}/{published_version} metadata to version {to_version}'  # noqa: E501
+        f'Migrating published version {dandiset}/{published_version} '
+        f'metadata to version {to_version}'
     )
     version = Version.objects.exclude(version='draft').get(
         dandiset=dandiset, version=published_version
@@ -23,7 +26,7 @@ def migrate_published_version_metadata(*, dandiset: str, published_version: str,
 
     try:
         metanew = migrate(metadata, to_version=to_version, skip_validation=False)
-    except Exception as e:
+    except Exception as e:  # noqa: BLE001
         click.echo(f'Failed to migrate {dandiset}/{published_version}')
         click.echo(e)
         raise click.Abort from e

dandiapi/api/management/commands/migrate_version_metadata.py

@@ -1,3 +1,5 @@
+from __future__ import annotations
+
 from dandischema import migrate
 import djclick as click
 
@@ -15,7 +17,7 @@ def migrate_version_metadata(*, to_version: str):
 
         try:
             metanew = migrate(metadata, to_version=to_version, skip_validation=True)
-        except Exception as e:
+        except Exception as e:  # noqa: BLE001
             click.echo(f'Failed to migrate {version.dandiset.identifier}/{version.version}')
             click.echo(e)
             continue

dandiapi/api/management/commands/revalidate.py

@@ -1,3 +1,5 @@
+from __future__ import annotations
+
 import djclick as click
 
 from dandiapi.api.models import Asset, Version

dandiapi/api/manifests.py

@@ -1,6 +1,8 @@
+from __future__ import annotations
+
 from contextlib import contextmanager
 import tempfile
-from typing import IO, Any, Generator, Iterable
+from typing import IO, TYPE_CHECKING, Any
 from urllib.parse import urlparse, urlunparse
 
 from django.conf import settings
@@ -11,6 +13,9 @@
 from dandiapi.api.models import Asset, AssetBlob, Version
 from dandiapi.api.storage import create_s3_storage
 
+if TYPE_CHECKING:
+    from collections.abc import Generator, Iterable
+
 
 def _s3_url(path: str) -> str:
     """Turn an object path into a fully qualified S3 URL."""
@@ -68,7 +73,7 @@ def _streaming_file_upload(path: str) -> Generator[IO[bytes], None, None]:
 
         # Piggyback on the AssetBlob storage since we want to store manifests in the same bucket
         storage = AssetBlob.blob.field.storage
-        storage._save(path, File(outfile))
+        storage._save(path, File(outfile))  # noqa: SLF001
 
 
 def _yaml_dump_sequence_from_generator(stream: IO[bytes], generator: Iterable[Any]) -> None:

dandiapi/api/migrations/0001_initial_v2.py

@@ -1,3 +1,5 @@
+from __future__ import annotations
+
 import uuid
 
 from django.conf import settings

dandiapi/api/migrations/0001_stagingapplication.py

@@ -1,3 +1,5 @@
+from __future__ import annotations
+
 from django.conf import settings
 from django.db import migrations, models
 import django.db.models.deletion

dandiapi/api/migrations/0002_asset_zarr.py

@@ -1,3 +1,5 @@
+from __future__ import annotations
+
 from django.db import migrations, models
 import django.db.models.deletion
 

dandiapi/api/migrations/0003_default_oauth_application.py

@@ -1,3 +1,5 @@
+from __future__ import annotations
+
 from django.db import migrations
 from django.db.models import Q
 from oauth2_provider.settings import oauth2_settings

dandiapi/api/migrations/0004_merge.py

@@ -1,3 +1,5 @@
+from __future__ import annotations
+
 from django.db import migrations