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from threading import Thread |
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from plugin.models import SyncResult |
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from plugin.sync.core.enums import SyncMedia |
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from plugin.sync.core.exceptions import QueueError |
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from plugin.sync.core.task import SyncTask |
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from plugin.sync.handlers import * |
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from plugin.sync.modes import * |
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from plugin.sync.triggers import LibraryUpdateTrigger |
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from threading import Lock |
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import logging |
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import Queue |
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import sys |
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import time |
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log = logging.getLogger(__name__) |
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HANDLERS = [ |
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Collection, |
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List, |
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Playback, |
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Ratings, |
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Watched |
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] |
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MODES = [ |
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FastPull, |
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Full, |
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Pull, |
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Push |
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] |
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class Main(object): |
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def __init__(self): |
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self.current = None |
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self._queue = Queue.PriorityQueue() |
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self._queue_lock = Lock() |
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self._spawn_lock = Lock() |
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self._thread = None |
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# Triggers |
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self._library_update = LibraryUpdateTrigger(self) |
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def queue(self, account, mode, data=None, media=SyncMedia.All, priority=10, trigger=SyncResult.Trigger.Manual, **kwargs): |
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"""Queue a sync for the provided account |
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Note: if a sync is already queued for the provided account a `SyncError` will be raised. |
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:param account: Account to synchronize with trakt |
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:type account: int or plugin.models.Account |
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:param mode: Syncing mode (pull, push, etc..) |
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:type mode: int (plugin.sync.SyncMode) |
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:param data: Data to synchronize (collection, ratings, etc..) |
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:type data: int (plugin.sync.SyncData) |
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:param media: Media to synchronize (movies, shows, etc..) |
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:type media: int (plugin.sync.SyncMedia) |
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:return: `SyncResult` object with details on the sync outcome. |
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:rtype: plugin.sync.core.result.SyncResult |
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""" |
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try: |
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# Create new task |
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task = SyncTask.create(account, mode, data, media, trigger, **kwargs) |
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except Exception, ex: |
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log.warn('Unable to construct task: %s', ex, exc_info=True) |
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raise QueueError('Error', 'Unable to construct task: %s' % ex) |
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with self._queue_lock: |
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# Ensure we only have one task queued per account |
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account_tasks = [t for (p, a, t) in self._queue.queue if a == task.account.id] |
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if len(account_tasks): |
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raise QueueError("Unable to queue sync", "Sync has already been queued for this account") |
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# Queue task until the thread is available |
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self._queue.put((priority, task.account.id, task), block=False) |
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# Ensure thread is active |
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self.spawn() |
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# Wait for task start |
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for x in xrange(3): |
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if task.started: |
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log.debug('Task %r has started', task) |
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return |
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time.sleep(1) |
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raise QueueError("Sync queued", "Sync will start once the currently queued tasks have finished") |
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def spawn(self): |
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"""Ensure syncing thread has been spawned""" |
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with self._spawn_lock: |
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if self._thread is not None: |
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return |
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self._thread = Thread(target=self.run_wrapper) |
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self._thread.start() |
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log.debug('Spawned syncing thread: %r', self._thread) |
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def run_wrapper(self): |
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while True: |
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# Retrieve task from queue |
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try: |
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_, _, self.current = self._queue.get(timeout=30) |
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except Queue.Empty: |
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continue |
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# Start task |
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log.info('(%r) Started', self.current.mode) |
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self.current.started = True |
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try: |
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# Construct modes/handlers for task |
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self.current.construct(HANDLERS, MODES) |
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# Run in plex authorization context |
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with self.current.account.plex.authorization(): |
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# Run in trakt authorization context |
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with self.current.account.trakt.authorization(): |
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# Run sync |
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self.run() |
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self.current.success = True |
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except Exception, ex: |
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log.warn('Exception raised in run(): %s', ex, exc_info=True) |
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self.current.exceptions.append(sys.exc_info()) |
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self.current.success = False |
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try: |
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# Sync task complete, run final tasks |
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self.finish() |
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except Exception, ex: |
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log.error('Unable to run final sync tasks: %s', ex, exc_info=True) |
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def finish(self): |
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# Cleanup `current` task |
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current = self.current |
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current.finish() |
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# Task finished |
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log.info('(%r) Done', current.mode) |
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# Cleanup sync manager |
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self.current = None |
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def cancel(self, id): |
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"""Trigger a currently running sync to abort |
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Note: A sync will only cancel at the next "safe" cancel point, this will not |
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force a thread to end immediately. |
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:return: `True` if a sync has been triggered to cancel, |
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`False` if there was no sync to cancel. |
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:rtype: bool |
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""" |
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current = self.current |
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if current is None: |
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# No active sync task |
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return True |
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if current.id != id: |
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# Active task doesn't match `id` |
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return False |
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# Request task abort |
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current.abort(timeout=10) |
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log.info('(%r) Abort', current.mode) |
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return True |
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def run(self): |
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# Trigger sync methods |
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self._trigger([ |
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'construct', |
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'start', |
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'run', |
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'stop' |
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]) |
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def _trigger(self, names): |
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if self.current.mode not in self.current.modes: |
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log.warn('Unknown sync mode: %r', self.current.mode) |
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return |
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mode = self.current.modes[self.current.mode] |
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for name in names: |
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func = getattr(mode, name, None) |
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if not func: |
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log.warn('Unknown method: %r', name) |
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return |
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func() |
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Sync = Main() |
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fuzeman /
Plex-Trakt-Scrobbler
