mirror of
https://github.com/ynput/ayon-core.git
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330 lines
12 KiB
Python
330 lines
12 KiB
Python
from pype.api import config, Logger
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from avalon import io
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import threading
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import asyncio
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from enum import Enum
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import datetime
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from .providers import lib
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log = Logger().get_logger("SyncServer")
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# test object 5eeb25e411e06a16209ab78e
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class SyncStatus(Enum):
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DO_NOTHING = 0
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DO_UPLOAD = 1
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DO_DOWNLOAD = 2
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class SyncServer():
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"""
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WIP
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Synchronization server that is synching published files from local to
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any of implemented providers (like GDrive, S3 etc.)
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Runs in the background and checks all representations, looks for files
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that are marked to be in different location than 'studio' (temporary),
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checks if 'created_dt' field is present denoting successfull synch
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with provider destination.
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''' - example of synced file test_Cylinder_lookMain_v010.ma to GDrive
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"files" : [
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{
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"path" : "{root}/Test/Assets/Cylinder/publish/look/lookMain/v010/
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test_Cylinder_lookMain_v010.ma",
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"_id" : ObjectId("5eeb25e411e06a16209ab78f"),
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"hash" : "test_Cylinder_lookMain_v010,ma|1592468963,24|4822",
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"size" : NumberLong(4822),
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"sites" : {
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"studio" : {
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"created_dt" : ISODate("2020-05-22T08:05:44.000Z")
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},
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"gdrive" : {
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"id" : ObjectId("5eeb25e411e06a16209ab78f"),
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"created_dt" : ISODate("2020-07-16T17:54:35.833Z")
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}
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}
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},
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'''
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It is expected that multiple providers will be implemented in separate
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classes and registered in 'providers.py'.
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"""
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RETRY_CNT = 3 # number of attempts to sync specific file
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def __init__(self):
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self.qaction = None
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self.failed_icon = None
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self._is_running = False
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self.presets = None
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if not io.Session:
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io.install()
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io.Session['AVALON_PROJECT'] = 'Test'
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try:
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self.presets = config.get_presets()["services"]["sync_server"]
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except Exception:
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log.debug((
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"There are not set presets for SyncServer."
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" No credentials provided, no synching possible"
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).format(str(self.presets)))
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self.sync_server_thread = SynchServerThread(self)
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def get_sync_representations(self):
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"""
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Get representations that should be synched, these could be
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recognised by presence of document in 'files.sites', where key is
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a provider (GDrive, S3) and value is empty document or document with
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no value for 'created_dt' field.
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Currently returning all representations.
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TODO: filter out representations that shouldnt be synced
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:return: <list>
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"""
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representations = io.find({
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"type": "representation"
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})
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return representations
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def check_status(self, file, representation, provider):
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"""
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Check synchronization status for single 'file' of single
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'representation' by single 'provider'.
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(Eg. check if 'scene.ma' of lookdev.v10 should be synched to GDrive
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:param file: <dictionary> of file from representation in Mongo
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:param representation: <dictionary> of representation
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:param provider: <string> - gdrive, gdc etc.
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:return: <string> - one of SyncStatus
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"""
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sites = file.get("sites") or {}
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if isinstance(sites, list): # temporary, old format of 'sites'
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return SyncStatus.DO_NOTHING
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provider_rec = sites.get(provider) or {}
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if provider_rec:
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created_dt = provider_rec.get("created_dt")
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if not created_dt:
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tries = self._get_tries_count(file, provider)
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# file will be skipped if unsuccessfully tried over threshold
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# error metadata needs to be purged manually in DB to reset
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if tries <= self.RETRY_CNT:
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return SyncStatus.DO_UPLOAD
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return SyncStatus.DO_NOTHING
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async def upload(self, file, representation, provider):
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"""
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Upload single 'file' of a 'representation' to 'provider'.
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Source url is taken from 'file' portion, where {root} placeholder
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is replaced by 'representation.Context.root'
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Provider could be one of implemented in provider.py.
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Updates MongoDB, fills in id of file from provider (ie. file_id
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from GDrive), 'created_dt' - time of upload
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:param file: <dictionary> of file from representation in Mongo
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:param representation: <dictionary> of representation
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:param provider: <string> - gdrive, gdc etc.
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:return:
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"""
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await asyncio.sleep(0.1)
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handler = lib.factory.get_provider(provider)
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local_root = representation.get("context", {}).get("root")
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if not local_root:
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raise ValueError("Unknown local root for file {}")
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source_file = file.get("path", "").replace('{root}', local_root)
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target_root = '/{}'.format(handler.get_root_name())
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target_file = file.get("path", "").replace('{root}', target_root)
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new_file_id = error = None
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try:
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import time
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start = time.time()
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new_file_id = handler.upload_file(source_file,
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target_file,
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overwrite=True)
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duration = time.time() - start
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log.info("one file took {}".format(duration))
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except FileNotFoundError as exp:
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error = str(exp)
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log.warning("File to be uploaded not found {}"
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.format(source_file), exc_info=True)
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except FileExistsError as exp:
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error = str(exp)
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log.warning("File already exists {}"
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.format(target_file), exc_info=True)
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except Exception as exp:
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error = str(exp)
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log.warning("Error happened during upload", exc_info=True)
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representation_id = representation.get("_id")
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file_id = file.get("_id")
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query = {
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"_id": representation_id,
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"files._id": file_id
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}
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update = {}
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if new_file_id:
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update["$set"] = self._get_success_dict(provider, new_file_id)
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# reset previous errors if any
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update["$unset"] = self._get_error_dict(provider, "", "")
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else:
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tries = self._get_tries_count(file, provider)
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tries += 1
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update["$set"] = self._get_error_dict(provider, error, tries)
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# it actually modifies single _id, but io.update_one not implemented
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io.update_many(
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query,
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update
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)
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if new_file_id:
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log.info("file {} uploaded successfully {}".format(source_file,
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new_file_id))
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async def download(self, file, representation, provider):
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pass
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def tray_start(self):
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self.sync_server_thread.start()
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def tray_exit(self):
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self.stop()
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@property
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def is_running(self):
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return self.sync_server_thread.is_running
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def stop(self):
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if not self.is_running:
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return
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try:
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log.debug("Stopping synch server server")
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self.sync_server_thread.is_running = False
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self.sync_server_thread.stop()
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except Exception:
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log.warning(
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"Error has happened during Killing synchserver server",
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exc_info=True
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)
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def thread_stopped(self):
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self._is_running = False
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def _get_success_dict(self, provider, new_file_id):
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"""
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Provide success metadata ("id", "created_dt") to be stored in Db.
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:param provider: used as part of path in DB (files.sites.gdrive)
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:param new_file_id: id of created file
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:return: <dict>
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"""
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val = {"files.$.sites.{}.id".format(provider): new_file_id,
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"files.$.sites.{}.created_dt".format(provider):
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datetime.datetime.utcnow()}
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return val
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def _get_error_dict(self, provider, error = "", tries = ""):
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"""
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Provide error metadata to be stored in Db.
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Used for set (error and tries provided) or unset mode.
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:param provider: used as part of path in DB (files.sites.gdrive)
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:param error: message
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:param tries: how many times failed
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:return: <dict>
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"""
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val = {"files.$.sites.{}.last_failed_dt".format(provider):
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datetime.datetime.utcnow(),
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"files.$.sites.{}.error".format(provider): error,
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"files.$.sites.{}.tries".format(provider): tries}
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return val
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def _get_tries_count(self, file, provider):
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"""
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Get number of failed attempts to synch
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:param file: <dictionary> - info about specific file
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:param provider: <string> - gdrive, S3 etc
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:return: <int> - number of failed attempts
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"""
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return file.get("sites", {}).get(provider, {}).get("tries", 0)
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class SynchServerThread(threading.Thread):
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"""
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Separate thread running synchronization server with asyncio loop.
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Stopped when tray is closed.
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"""
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def __init__(self, module):
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super(SynchServerThread, self).__init__()
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self.module = module
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self.loop = None
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self.is_running = False
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def run(self):
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self.is_running = True
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try:
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log.info("Starting synchserver server")
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self.loop = asyncio.new_event_loop() # create new loop for thread
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asyncio.set_event_loop(self.loop)
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asyncio.ensure_future(self.check_shutdown(), loop=self.loop)
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asyncio.ensure_future(self.sync_loop(), loop=self.loop)
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self.loop.run_forever()
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except Exception:
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log.warning(
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"Synch Server service has failed", exc_info=True
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)
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finally:
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self.loop.close() # optional
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async def sync_loop(self):
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while self.is_running:
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import time
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start_time = time.time()
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sync_representations = self.module.get_sync_representations()
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log.info("sync_representations duration {}"
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.format(time.time()-start_time))
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for provider in lib.factory.providers: # TODO clumsy
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for sync in sync_representations:
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files = sync.get("files") or {}
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if files:
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for file in files:
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status = self.module.check_status(file, sync,
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provider)
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if status == SyncStatus.DO_UPLOAD:
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await self.module.upload(file, sync, provider)
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if status == SyncStatus.DO_DOWNLOAD:
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await self.module.download(file, sync, provider)
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duration = time.time() - start_time
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log.info("One loop took {}".format(duration))
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await asyncio.sleep(60)
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def stop(self):
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"""Sets is_running flag to false, 'check_shutdown' shuts server down"""
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self.is_running = False
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async def check_shutdown(self):
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""" Future that is running and checks if server should be running
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periodically.
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"""
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while self.is_running:
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await asyncio.sleep(0.5)
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tasks = [task for task in asyncio.all_tasks() if
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task is not asyncio.current_task()]
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list(map(lambda task: task.cancel(), tasks)) # cancel all the tasks
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results = await asyncio.gather(*tasks, return_exceptions=True)
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log.debug(f'Finished awaiting cancelled tasks, results: {results}...')
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await self.loop.shutdown_asyncgens()
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# to really make sure everything else has time to stop
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await asyncio.sleep(0.07)
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self.loop.stop()
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