Copy get_storage_class to our code base

Author: humitos

pytest.ini

@@ -22,6 +22,6 @@ filterwarnings =
     ignore:DateTimeField .* received a naive datetime .* while time zone support is active:RuntimeWarning
     ignore:.*:DeprecationWarning
 
-    ignore:.*:django.utils.deprecation.RemovedInDjango50Warning
+    ignore:.*:django.utils.deprecation.RemovedInDjango60Warning
     ignore:.*:elasticsearch.exceptions.ElasticsearchWarning
     ignore:.*:PendingDeprecationWarning

readthedocs/proxito/tests/base.py

@@ -4,7 +4,7 @@
 import pytest
 from django.conf import settings
 from django.contrib.auth.models import User
-from django.core.files.storage import get_storage_class
+from readthedocs.storage import get_storage_class
 from django.test import TestCase
 
 from readthedocs.builds.constants import LATEST

readthedocs/rtd_tests/tests/test_imported_file.py

@@ -3,7 +3,7 @@
 
 import pytest
 from django.conf import settings
-from django.core.files.storage import get_storage_class
+from readthedocs.storage import get_storage_class
 from django.test import TestCase
 from django.test.utils import override_settings
 from django_dynamic_fixture import get

readthedocs/storage/__init__.py

@@ -7,8 +7,17 @@
 """
 
 from django.conf import settings
-from django.core.files.storage import get_storage_class
 from django.utils.functional import LazyObject
+from django.utils.module_loading import import_string
+
+
+# Borrowed from Django 4.2 since it was deprecrated and removed in 5.2
+# NOTE: we can use settings.STORAGES for our own storages as well if we want to use the standards.
+#
+# https://docs.djangoproject.com/en/5.0/ref/settings/#std-setting-STORAGES)
+# https://github.com/django/django/blob/4.2/django/core/files/storage/__init__.py#L31
+def get_storage_class(import_path=None):
+    return import_string(import_path or settings.DEFAULT_FILE_STORAGE)
 
 
 class ConfiguredBuildMediaStorage(LazyObject):