mirror of
https://github.com/janeczku/calibre-web
synced 2024-11-28 20:39:59 +00:00
102 lines
4.1 KiB
Python
102 lines
4.1 KiB
Python
# -*- coding: utf-8 -*-
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# This file is part of the Calibre-Web (https://github.com/janeczku/calibre-web)
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# Copyright (C) 2020 mmonkey
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#
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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import datetime
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from . import config, constants
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from .services.background_scheduler import BackgroundScheduler, CronTrigger, use_APScheduler
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from .tasks.database import TaskReconnectDatabase
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from .tasks.thumbnail import TaskGenerateCoverThumbnails, TaskGenerateSeriesThumbnails, TaskClearCoverThumbnailCache
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from .services.worker import WorkerThread
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from .tasks.metadata_backup import TaskBackupMetadata
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def get_scheduled_tasks(reconnect=True):
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tasks = list()
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# Reconnect Calibre database (metadata.db) based on config.schedule_reconnect
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if reconnect:
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tasks.append([lambda: TaskReconnectDatabase(), 'reconnect', False])
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# Generate metadata.opf file for each changed book
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if config.schedule_metadata_backup:
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tasks.append([lambda: TaskBackupMetadata("en"), 'backup metadata', False])
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# Generate all missing book cover thumbnails
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if config.schedule_generate_book_covers:
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tasks.append([lambda: TaskClearCoverThumbnailCache(0), 'delete superfluous book covers', True])
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tasks.append([lambda: TaskGenerateCoverThumbnails(), 'generate book covers', False])
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# Generate all missing series thumbnails
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if config.schedule_generate_series_covers:
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tasks.append([lambda: TaskGenerateSeriesThumbnails(), 'generate book covers', False])
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return tasks
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def end_scheduled_tasks():
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worker = WorkerThread.get_instance()
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for __, __, __, task, __ in worker.tasks:
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if task.scheduled and task.is_cancellable:
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worker.end_task(task.id)
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def register_scheduled_tasks(reconnect=True):
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scheduler = BackgroundScheduler()
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if scheduler:
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# Remove all existing jobs
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scheduler.remove_all_jobs()
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start = config.schedule_start_time
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duration = config.schedule_duration
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# Register scheduled tasks
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scheduler.schedule_tasks(tasks=get_scheduled_tasks(reconnect), trigger=CronTrigger(hour=start))
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end_time = calclulate_end_time(start, duration)
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scheduler.schedule(func=end_scheduled_tasks, trigger=CronTrigger(hour=end_time.hour, minute=end_time.minute),
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name="end scheduled task")
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# Kick-off tasks, if they should currently be running
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if should_task_be_running(start, duration):
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scheduler.schedule_tasks_immediately(tasks=get_scheduled_tasks(reconnect))
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def register_startup_tasks():
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scheduler = BackgroundScheduler()
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if scheduler:
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start = config.schedule_start_time
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duration = config.schedule_duration
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# Run scheduled tasks immediately for development and testing
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# Ignore tasks that should currently be running, as these will be added when registering scheduled tasks
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if constants.APP_MODE in ['development', 'test'] and not should_task_be_running(start, duration):
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scheduler.schedule_tasks_immediately(tasks=get_scheduled_tasks(False))
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def should_task_be_running(start, duration):
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now = datetime.datetime.now()
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start_time = datetime.datetime.now().replace(hour=start, minute=0, second=0, microsecond=0)
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end_time = start_time + datetime.timedelta(hours=duration // 60, minutes=duration % 60)
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return start_time < now < end_time
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def calclulate_end_time(start, duration):
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start_time = datetime.datetime.now().replace(hour=start, minute=0)
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return start_time + datetime.timedelta(hours=duration // 60, minutes=duration % 60)
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