Delete old thumbnails from the media/cache directory and the database

docs/management.rst

@@ -29,6 +29,17 @@ useful if your Key Value Store has garbage data not dealt with by cleanup or
 you're switching Key Value Store backend.
 
 
+.. _thumbnail-cleanup-delete-timeout:
+
+thumbnail cleanup_delete_timeout
+=================================
+``python manage.py thumbnail cleanup_delete_timeout``
+
+Deletes thumbnails in the cache, kvstore (database) and storage (filesystem),
+if the file's created time is before THUMBNAIL_CLEANUP_DELETE_TIMEOUT seconds ago. 
+No action will be taken if THUMBNAIL_CLEANUP_DELETE_TIMEOUT is as ``None``
+
+
 .. _thumbnail-clear-delete-referenced:
 
 thumbnail clear_delete_referenced

docs/reference/settings.rst

@@ -236,6 +236,15 @@ at maximum or ``None`` if your caching backend can handle that as infinite.
 Only applicable for the Cached DB Key Value Store.
 
 
+``THUMBNAIL_CLEANUP_DELETE_TIMEOUT``
+===========================
+
+- Default: ``3600 * 24 * 365 * 10``
+
+Timeout to deletes thumbnails in the cache, kvstore (database) and storage (filesystem),
+based on file's created time. If set as ``None`` then no action will be taken.
+
+
 ``THUMBNAIL_CACHE``
 ===================
 

sorl/thumbnail/conf/defaults.py

@@ -53,6 +53,7 @@
 # Cache timeout for ``cached_db`` store. You should probably keep this at
 # maximum or ``0`` if your caching backend can handle that as infinite.
 THUMBNAIL_CACHE_TIMEOUT = 3600 * 24 * 365 * 10  # 10 years
+THUMBNAIL_CLEANUP_DELETE_TIMEOUT = 3600 * 24 * 365 * 10  # 10 years
 
 # The cache configuration to use for storing thumbnail data
 THUMBNAIL_CACHE = 'default'

sorl/thumbnail/kvstores/base.py

@@ -93,8 +93,22 @@
         Cleans up the key value store. In detail:
         1. Deletes all key store references for image_files that do not exist
            and all key references for its thumbnails *and* their image_files.
-        2. Deletes or updates all invalid thumbnail keys
+        2. Deletes or updates all invalid thumbnail keys.
         """
+        self._cleanup()
+
+    def cleanup_and_delete_if_created_time_before_dt(self, dt):
+        """
+        Cleans up the key value store. In detail:
+        1. Deletes all key store references for image_files that:
+           - do not exist, or
+           - created time before ``dt``
+           and all key references for its thumbnails *and* their image_files.
+        2. Deletes or updates all invalid thumbnail keys.
+        """
+        self._cleanup(delete_if_created_time_before_dt=dt)
+
+    def _cleanup(self, delete_if_created_time_before_dt=None):
         for key in self._find_keys(identity='image'):
             image_file = self._get(key)
 
@@ -113,8 +127,20 @@
                 thumbnail_keys_set = set(thumbnail_keys)
 
                 for thumbnail_key in thumbnail_keys:
-                    if not self._get(thumbnail_key):
+                    thumbnail = self._get(thumbnail_key)
+                    if not thumbnail:
                         thumbnail_keys_set.remove(thumbnail_key)
+                    else:
+                        if delete_if_created_time_before_dt is not None:
+                            try:
+                                created_time = thumbnail.storage.get_created_time(thumbnail.name)
+                            except NotImplementedError:
+                                pass
+                            else:
+                                if created_time < delete_if_created_time_before_dt:
+                                    thumbnail_keys_set.remove(thumbnail_key)
+                                    self.delete(thumbnail, False)
+                                    thumbnail.delete()  # delete the actual file
 
                 thumbnail_keys = list(thumbnail_keys_set)
 

sorl/thumbnail/management/commands/thumbnail.py

@@ -1,10 +1,20 @@
+from datetime import timedelta
+
 from django.core.management.base import BaseCommand
+from django.utils import timezone
 
 from sorl.thumbnail import default
+from sorl.thumbnail.conf import settings
 from sorl.thumbnail.images import delete_all_thumbnails
 
 
-VALID_LABELS = ['cleanup', 'clear', 'clear_delete_referenced', 'clear_delete_all']
+VALID_LABELS = [
+    'cleanup',
+    'cleanup_delete_timeout',
+    'clear',
+    'clear_delete_referenced',
+    'clear_delete_all',
+]
 
 
 class Command(BaseCommand):
@@ -16,6 +26,7 @@
     def add_arguments(self, parser):
         parser.add_argument('args', choices=VALID_LABELS, nargs=1)
 
+    # flake8: noqa: C901
     def handle(self, *labels, **options):
         verbosity = int(options.get('verbosity'))
         label = labels[0]
@@ -31,7 +42,34 @@
 
             return
 
-        if label == 'clear_delete_referenced':
+        elif label == 'cleanup_delete_timeout':
+            if settings.THUMBNAIL_CLEANUP_DELETE_TIMEOUT:
+                if verbosity >= 1:
+                    self.stdout.write(
+                        """
+                            Cleanup thumbnails and delete if created time before
+                            THUMBNAIL_CLEANUP_DELETE_TIMEOUT seconds ago
+                        """,
+                        ending=' ... '
+                    )
+
+                thumbnail_cache_timeout_dt = timezone.now() - timedelta(
+                    seconds=settings.THUMBNAIL_CLEANUP_DELETE_TIMEOUT
+                )
+                default.kvstore.cleanup_and_delete_if_created_time_before_dt(thumbnail_cache_timeout_dt)
+
+                if verbosity >= 1:
+                    self.stdout.write('[Done]')
+
+            else:
+                self.stdout.write(
+                    "THUMBNAIL_CLEANUP_DELETE_TIMEOUT is empty. No action taken",
+                    ending=' ... '
+                )
+
+            return
+
+        elif label == 'clear_delete_referenced':
             if verbosity >= 1:
                 self.stdout.write(
                     "Delete all thumbnail files referenced in Key Value Store",