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Code Issues Releases Wiki Activity

Fixed problem caused by parallel downloads where ok.mkdirs would fail (when called by youtube-dl).

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This commit is contained in:
Tiberiu Chibici 2018-11-02 02:50:16 +02:00
parent 288328f538
commit 2a8cc8da0e
1 changed files with 28 additions and 16 deletions
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12
app/YtManagerApp/management/jobs/download_video.py
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@ -5,10 +5,13 @@ import os
import youtube_dl
import logging
import re
from threading import Lock
log = logging.getLogger('video_downloader')
log_youtube_dl = log.getChild('youtube_dl')
_lock = Lock()
def __get_valid_path(path):
"""
@ -73,6 +76,12 @@ def download_video(video: Video, attempt: int = 1):
log.info('Downloading video %d [%s %s]', video.id, video.video_id, video.name)
# Issue: if multiple videos are downloaded at the same time, a race condition appears in the mkdirs() call that
# youtube-dl makes, which causes it to fail with the error 'Cannot create folder - file already exists'.
# For now, allow a single download instance.
_lock.acquire()
try:
max_attempts = settings.getint_sub(video.subscription, 'user', 'DownloadMaxAttempts', fallback=3)
youtube_dl_params, output_path = __build_youtube_dl_params(video)
@ -95,6 +104,9 @@ def download_video(video: Video, attempt: int = 1):
video.downloaded_path = ''
video.save()
finally:
_lock.release()
def __schedule_download_video(video: Video, attempt=1):
job = scheduler.scheduler.add_job(download_video, args=[video, attempt])