Temp folder is deleted on regular base

cps/file_helper.py

@@ -18,9 +18,15 @@
 
 from tempfile import gettempdir
 import os
+import shutil
 
 def get_temp_dir():
     tmp_dir = os.path.join(gettempdir(), 'calibre_web')
     if not os.path.isdir(tmp_dir):
         os.mkdir(tmp_dir)
     return tmp_dir
+
+
+def del_temp_dir():
+    tmp_dir = os.path.join(gettempdir(), 'calibre_web')
+    shutil.rmtree(tmp_dir)

cps/schedule.py

@@ -21,6 +21,7 @@ import datetime
 from . import config, constants
 from .services.background_scheduler import BackgroundScheduler, CronTrigger, use_APScheduler
 from .tasks.database import TaskReconnectDatabase
+from .tasks.tempFolder import TaskDeleteTempFolder
 from .tasks.thumbnail import TaskGenerateCoverThumbnails, TaskGenerateSeriesThumbnails, TaskClearCoverThumbnailCache
 from .services.worker import WorkerThread
 from .tasks.metadata_backup import TaskBackupMetadata
@@ -31,6 +32,9 @@ def get_scheduled_tasks(reconnect=True):
     if reconnect:
         tasks.append([lambda: TaskReconnectDatabase(), 'reconnect', False])
 
+    # Delete temp folder
+    tasks.append([lambda: TaskDeleteTempFolder(), 'delete temp', False])
+
     # Generate metadata.opf file for each changed book
     if config.schedule_metadata_backup:
         tasks.append([lambda: TaskBackupMetadata("en"), 'backup metadata', False])
@@ -86,6 +90,8 @@ def register_startup_tasks():
         # Ignore tasks that should currently be running, as these will be added when registering scheduled tasks
         if constants.APP_MODE in ['development', 'test'] and not should_task_be_running(start, duration):
             scheduler.schedule_tasks_immediately(tasks=get_scheduled_tasks(False))
+        else:
+            scheduler.schedule_tasks_immediately(tasks=[[lambda: TaskDeleteTempFolder(), 'delete temp', False]])
 
 
 def should_task_be_running(start, duration):

cps/tasks/tempFolder.py

@@ -0,0 +1,47 @@
+# -*- coding: utf-8 -*-
+
+#   This file is part of the Calibre-Web (https://github.com/janeczku/calibre-web)
+#     Copyright (C) 2023 OzzieIsaacs
+#
+#   This program is free software: you can redistribute it and/or modify
+#   it under the terms of the GNU General Public License as published by
+#   the Free Software Foundation, either version 3 of the License, or
+#   (at your option) any later version.
+#
+#   This program is distributed in the hope that it will be useful,
+#   but WITHOUT ANY WARRANTY; without even the implied warranty of
+#   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+#   GNU General Public License for more details.
+#
+#   You should have received a copy of the GNU General Public License
+#   along with this program. If not, see <http://www.gnu.org/licenses/>.
+
+from urllib.request import urlopen
+
+from flask_babel import lazy_gettext as N_
+
+from cps import logger, file_helper
+from cps.services.worker import CalibreTask
+
+
+class TaskDeleteTempFolder(CalibreTask):
+    def __init__(self, task_message=N_('Delete temp folder contents')):
+        super(TaskDeleteTempFolder, self).__init__(task_message)
+        self.log = logger.create()
+
+    def run(self, worker_thread):
+        try:
+            file_helper.del_temp_dir()
+        except FileNotFoundError:
+            pass
+        except (PermissionError, OSError) as e:
+            self.log.error("Error deleting temp folder: {}".format(e))
+        self._handleSuccess()
+
+    @property
+    def name(self):
+        return "Delete Temp Folder"
+
+    @property
+    def is_cancellable(self):
+        return False