mirror of
https://github.com/lrnselfreliance/wrolpi.git
synced 2026-10-26 19:01:39 -04:00
4fae4ae1b4
Replacing Channels and Domains with Collection. Moving downloading relationships from Channel to Collection. Created domains.yaml config to manage tagged domain collections. Adding turn-key upgrade solution in the UI.
395 lines
14 KiB
Python
Executable file
395 lines
14 KiB
Python
Executable file
#! /usr/bin/env python3
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import argparse
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import asyncio
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import logging
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import os
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import sys
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from contextlib import suppress
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from sanic import Sanic
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from sanic.signals import Event
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from modules.inventory import init_inventory
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from modules.inventory.common import import_inventories_config
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from modules.videos.lib import import_channels_config, get_videos_downloader_config
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from wrolpi import flags, admin
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from modules.archive.lib import import_domains_config
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from wrolpi import root_api # noqa
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from wrolpi import tags
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from wrolpi.api_utils import api_app, perpetual_signal
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from wrolpi.common import logger, check_media_directory, set_log_level, limit_concurrent, \
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cancel_refresh_tasks, cancel_background_tasks, get_wrolpi_config, can_connect_to_server, wrol_mode_enabled, \
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create_empty_config_files, TRACE_LEVEL
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from wrolpi.contexts import attach_shared_contexts, reset_shared_contexts, initialize_configs_contexts
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from wrolpi.dates import Seconds
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from wrolpi.downloader import import_downloads_config, download_manager, get_download_manager_config
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from wrolpi.errors import WROLModeEnabled
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from wrolpi.vars import PROJECT_DIR, DOCKERIZED, INTERNET_SERVER
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from wrolpi.version import get_version_string
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logger = logger.getChild('wrolpi-main')
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def db_main(args):
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"""
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Handle database migrations. This uses Alembic, supported commands are "upgrade" and "downgrade".
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"""
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from alembic.config import Config
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from alembic import command
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from wrolpi.db import uri
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config = Config(PROJECT_DIR / 'alembic.ini')
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# Overwrite the Alembic config, the is usually necessary when running in a docker container.
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config.set_main_option('sqlalchemy.url', uri)
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logger.warning(f'DB URI: {uri}')
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if args.command == 'upgrade':
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command.upgrade(config, 'head')
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elif args.command == 'downgrade':
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command.downgrade(config, '-1')
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else:
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print(f'Unknown DB command: {args.command}')
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return 2
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return 0
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INTERACTIVE_BANNER = '''
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This is the interactive WROLPi shell. Use this to interact with the WROLPi API library.
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Example (get the duration of every video file):
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from modules.videos.models import Video
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from modules.videos.common import extract_video_duration
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videos = session.query(Video).all()
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videos = list(videos)
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for video in videos:
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extract_video_duration(video.file_group.primary_path)
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Check local variables:
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locals().keys()
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'''
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def launch_interactive_shell():
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"""Launches an interactive shell with a DB session."""
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import code
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from wrolpi.db import get_db_session
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with get_db_session() as session:
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code.interact(banner=INTERACTIVE_BANNER, local=locals())
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def main():
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parser = argparse.ArgumentParser()
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parser.add_argument('-v', '--verbose', action='count')
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parser.add_argument('--version', action='store_true', default=False)
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parser.add_argument('-c', '--check-media', action='store_true', default=False,
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help='Check that the media directory is mounted and has the correct permissions.'
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)
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parser.add_argument('-i', '--interactive', action='store_true', default=False,
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help='Enter an interactive shell with some WROLPi tools')
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sub_commands = parser.add_subparsers(title='sub-commands', dest='sub_commands')
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# Add the API parser, this will allow the user to specify host/port etc.
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api_parser = sub_commands.add_parser('api')
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root_api.init_parser(api_parser)
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# DB Parser for running Alembic migrations
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db_parser = sub_commands.add_parser('db')
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db_parser.add_argument('command', help='Supported commands: upgrade, downgrade')
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args = parser.parse_args()
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if args.interactive:
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launch_interactive_shell()
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return 0
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if args.version:
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# Print out the relevant version information, then exit.
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print(get_version_string())
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return 0
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if args.check_media:
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# Run the media directory check. Exit with informative return code.
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result = check_media_directory()
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if result is False:
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return 1
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print('Media directory is correct.')
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return 0
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if not args.sub_commands:
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parser.print_help()
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return 1
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logger.warning(f'Starting with: {sys.argv}')
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if args.verbose == 1:
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set_log_level(logging.INFO)
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elif args.verbose and args.verbose == 2:
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set_log_level(logging.DEBUG)
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elif args.verbose and args.verbose >= 3:
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# Log everything. Add SQLAlchemy debug logging.
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set_log_level(TRACE_LEVEL)
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logger.info(get_version_string())
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if DOCKERIZED:
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logger.info('Running in Docker')
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check_media_directory()
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# Run DB migrations before anything else.
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if args.sub_commands == 'db':
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return db_main(args)
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# Run the API.
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if args.sub_commands == 'api':
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return root_api.main(args)
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return 1
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@api_app.main_process_ready
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async def main_process_startup(app: Sanic):
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"""
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Initializes multiprocessing tools, flags, etc.
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Performed only once when the server starts, this is done before server processes are forked.
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@warning: This is NOT run after auto-reload! You must stop and start Sanic.
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"""
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logger.debug('main_process_startup')
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check_media_directory()
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if ('api',) not in app.router.routes_all:
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logger.debug(f'{app.router.routes_all=}')
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raise RuntimeError('WROLPi routes do not exist! Was root_api imported?')
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# Initialize multiprocessing shared contexts before forking Sanic processes.
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attach_shared_contexts(app)
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logger.debug('main_process_startup done')
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try:
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create_empty_config_files()
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except Exception as e:
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logger.error('Failed to create initial config files', exc_info=e)
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@api_app.listener('after_server_start') # FileConfigs need to be initialized first.
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async def initialize_configs(app: Sanic):
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"""Each Sanic process runs this once."""
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# Each process will have their own FileConfig object, but share the `app.shared_ctx.*config`
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logger.debug('initialize_configs')
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try:
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initialize_configs_contexts(app)
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await asyncio.sleep(0.5)
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wrol_mode_enabled()
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logger.info(f'initialize_configs succeeded pid={os.getpid()}')
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except Exception as e:
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logger.error('initialize_configs failed with', exc_info=e)
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raise
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@api_app.signal(Event.SERVER_SHUTDOWN_BEFORE)
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@api_app.listener('reload_process_stop')
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@limit_concurrent(1)
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async def handle_server_shutdown(*args, **kwargs):
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"""Stop downloads when server is shutting down."""
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logger.warning('Shutting down')
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download_manager.stop()
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await cancel_refresh_tasks()
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await cancel_background_tasks()
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@api_app.signal(Event.SERVER_SHUTDOWN_AFTER)
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async def handle_server_shutdown_reset(app: Sanic, loop):
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"""Reset things after shutdown is complete, just in case server is going to start again."""
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reset_shared_contexts(app)
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@api_app.after_server_start
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async def start_single_tasks(app: Sanic):
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"""Recurring/Single tasks that are started in only one Sanic process."""
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# Only allow one child process to perform periodic tasks. See `handle_server_shutdown`
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if app.shared_ctx.single_tasks_started.is_set():
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return
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app.shared_ctx.single_tasks_started.set()
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logger.debug(f'start_single_tasks started')
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# Import configs, ignore errors so the service will start. Configs will refuse to save if they failed to import.
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with suppress(Exception):
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get_wrolpi_config().import_config()
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logger.debug('wrolpi config imported')
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wrolpi_config = get_wrolpi_config()
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if wrolpi_config.successful_import:
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# Only import other configs if WROLPi config was imported, and WROL mode is not enabled.
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if wrolpi_config.wrol_mode:
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logger.warning('Refusing to import other configs when WROL mode is enabled!')
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else:
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with suppress(Exception):
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tags.import_tags_config()
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logger.debug('tags config imported')
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with suppress(Exception):
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get_videos_downloader_config().import_config()
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logger.debug('videos downloader config imported')
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with suppress(Exception):
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await import_downloads_config()
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logger.debug('downloads config imported')
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# Channels uses both downloads and tags.
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with suppress(Exception):
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import_channels_config()
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logger.debug('channels config imported')
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# Domains config import
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with suppress(Exception):
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import_domains_config()
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logger.debug('domains config imported')
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with suppress(Exception):
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import_inventories_config()
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logger.debug('inventories config imported')
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with suppress(Exception):
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init_inventory()
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from modules.zim.lib import flag_outdated_zim_files
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try:
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flag_outdated_zim_files()
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except Exception as e:
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logger.error('Failed to flag outdated Zims', exc_info=e)
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logger.debug('start_single_tasks waiting for db...')
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async with flags.db_up.wait_for():
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logger.debug('start_single_tasks db is up')
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if flags.refresh_complete.is_set():
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# Set all downloads to new.
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download_manager.retry_downloads()
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# Hotspot/throttle are not supported in Docker containers.
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if not DOCKERIZED:
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if get_wrolpi_config().hotspot_on_startup:
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logger.info('Starting hotspot...')
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try:
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admin.enable_hotspot()
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except Exception as e:
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logger.error('Failed to enable hotspot', exc_info=e)
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else:
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logger.info('Hotspot on startup is disabled.')
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if get_wrolpi_config().throttle_on_startup:
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logger.info('Throttling CPU...')
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try:
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admin.throttle_cpu_on()
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except Exception as e:
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logger.error('Failed to throttle CPU', exc_info=e)
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else:
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logger.info('CPU throttle on startup is disabled')
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if get_wrolpi_config().download_on_startup and not wrol_mode_enabled():
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# Only start downloading when prerequisites have been met.
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try:
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async with flags.have_internet.wait_for(timeout=30):
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if get_download_manager_config().successful_import:
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await download_manager.enable()
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except TimeoutError as e:
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logger.error('Failed to enable download', exc_info=e)
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logger.debug(f'start_single_tasks done')
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@perpetual_signal(sleep=1)
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async def perpetual_check_log_level():
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"""Copies global log level into this Sanic worker's logger."""
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log_level = api_app.shared_ctx.log_level.value
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if log_level != logger.getEffectiveLevel():
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logger.info(f'changing log level from {logger.getEffectiveLevel()} to {log_level}')
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set_log_level(log_level, warn_level=False)
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@perpetual_signal(sleep=10)
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async def perpetual_check_db_is_up_worker():
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try:
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flags.check_db_is_up()
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flags.init_flags()
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except Exception as e:
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logger.error('Failed to check db status', exc_info=e)
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@perpetual_signal(sleep=10)
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async def perpetual_have_internet_worker():
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try:
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if can_connect_to_server(INTERNET_SERVER):
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flags.have_internet.set()
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# Check hourly once we have internet.
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await asyncio.sleep(float(Seconds.hour))
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else:
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# Check more often until the internet is back.
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flags.have_internet.clear()
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except WROLModeEnabled:
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flags.have_internet.clear()
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except Exception as e:
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logger.error('Failed to check if internet is up', exc_info=e)
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@perpetual_signal(sleep=30)
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async def perpetual_start_video_missing_comments_download():
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from modules.videos.video.lib import get_missing_videos_comments
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async with flags.refresh_complete.wait_for():
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# We can't search for Videos missing comments until the refresh has completed.
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pass
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# Wait for download manager to startup.
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await asyncio.sleep(5)
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if download_manager.can_download:
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try:
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await get_missing_videos_comments()
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except Exception as e:
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logger.error('Failed to get missing video comments', exc_info=e)
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# Sleep one hour.
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await asyncio.sleep(int(Seconds.hour))
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else:
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logger.debug('Waiting for downloads to be enabled before downloading comments...')
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@perpetual_signal(sleep=3600) # Check hourly
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async def perpetual_check_for_updates():
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"""
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Check git remote for new commits on the current branch.
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Updates shared_ctx with update info for the /api/status endpoint.
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Only runs on native installs (not Docker).
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"""
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from wrolpi.upgrade import check_for_update
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# Don't check for updates in Docker environments
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if DOCKERIZED:
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return
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# Only check when we have internet
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if not flags.have_internet.is_set():
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return
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try:
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result = check_for_update(fetch=True)
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# Store in shared_ctx.status (a manager.dict) to share across all workers.
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api_app.shared_ctx.status['update_available'] = result.get('update_available', False)
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api_app.shared_ctx.status['latest_commit'] = result.get('latest_commit')
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api_app.shared_ctx.status['current_commit'] = result.get('current_commit')
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api_app.shared_ctx.status['commits_behind'] = result.get('commits_behind', 0)
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api_app.shared_ctx.status['git_branch'] = result.get('branch')
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if result.get('update_available'):
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logger.info(f"Update available: {result['commits_behind']} commits behind on {result['branch']}")
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except Exception as e:
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logger.error('Failed to check for updates', exc_info=e)
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if __name__ == '__main__':
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sys.exit(main())
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