Added names for jobs to make log more readable

Bugfix logging delete thumbnail

cps/schedule.py

@@ -30,15 +30,15 @@ def get_scheduled_tasks(reconnect=True):
 
     # Reconnect Calibre database (metadata.db)
     if reconnect:
-        tasks.append(lambda: TaskReconnectDatabase())
+        tasks.append([lambda: TaskReconnectDatabase(), 'reconnect'])
 
     # Generate all missing book cover thumbnails
     if config.schedule_generate_book_covers:
-        tasks.append(lambda: TaskGenerateCoverThumbnails())
+        tasks.append([lambda: TaskGenerateCoverThumbnails(), 'generate book covers'])
 
     # Generate all missing series thumbnails
     if config.schedule_generate_series_covers:
-        tasks.append(lambda: TaskGenerateSeriesThumbnails())
+        tasks.append([lambda: TaskGenerateSeriesThumbnails(), 'generate book covers'])
 
     return tasks
 
@@ -63,7 +63,7 @@ def register_scheduled_tasks():
         # Register scheduled tasks
         if start != end:
             scheduler.schedule_tasks(tasks=get_scheduled_tasks(), trigger='cron', hour=start)
-            scheduler.schedule(func=end_scheduled_tasks, trigger='cron', hour=end)
+            scheduler.schedule(func=end_scheduled_tasks, trigger='cron', name="end scheduled task", hour=end)
 
         # Kick-off tasks, if they should currently be running
         if should_task_be_running(start, end):

cps/services/background_scheduler.py

@@ -47,37 +47,37 @@ class BackgroundScheduler:
 
         return cls._instance
 
-    def schedule(self, func, trigger, **trigger_args):
+    def schedule(self, func, trigger, name=None, **trigger_args):
         if use_APScheduler:
-            return self.scheduler.add_job(func=func, trigger=trigger, **trigger_args)
+            return self.scheduler.add_job(func=func, trigger=trigger, name=name, **trigger_args)
 
     # Expects a lambda expression for the task
-    def schedule_task(self, task, user=None, trigger='cron', **trigger_args):
+    def schedule_task(self, task, user=None, name=None, trigger='cron', **trigger_args):
         if use_APScheduler:
             def scheduled_task():
                 worker_task = task()
                 worker_task.scheduled = True
                 WorkerThread.add(user, worker_task)
-            return self.schedule(func=scheduled_task, trigger=trigger, **trigger_args)
+            return self.schedule(func=scheduled_task, trigger=trigger, name=name, **trigger_args)
 
     # Expects a list of lambda expressions for the tasks
     def schedule_tasks(self, tasks, user=None, trigger='cron', **trigger_args):
         if use_APScheduler:
             for task in tasks:
-                self.schedule_task(task, user=user, trigger=trigger, **trigger_args)
+                self.schedule_task(task[0], user=user, trigger=trigger, name=task[1], **trigger_args)
 
     # Expects a lambda expression for the task
-    def schedule_task_immediately(self, task, user=None):
+    def schedule_task_immediately(self, task, user=None, name=None):
         if use_APScheduler:
             def immediate_task():
                 WorkerThread.add(user, task())
-            return self.schedule(func=immediate_task, trigger='date')
+            return self.schedule(func=immediate_task, trigger='date', name=name)
 
     # Expects a list of lambda expressions for the tasks
     def schedule_tasks_immediately(self, tasks, user=None):
         if use_APScheduler:
             for task in tasks:
-                self.schedule_task_immediately(task, user)
+                self.schedule_task_immediately(task[0], user, name="immediately " + task[1])
 
     # Remove all jobs
     def remove_all_jobs(self):

cps/tasks/thumbnail.py

@@ -487,6 +487,9 @@ class TaskClearCoverThumbnailCache(CalibreTask):
         return 'ThumbnailsClear'
 
     def __str__(self):
+        if self.book_id > 0:
+            return "Delete Thumbnail cache for book " + str(self.book_id)
+        else:
             return "Delete Thumbnail cache directory"
 
     @property