The "default" downloader options (rate, retries, timeout, verify) are
mapped to corresponding youtube-dl options.
downloader.ytdl.logging tells the downloader to pass youtube-dl's output
to a Logger object.
downloader.ytdl.raw-options allows to pass arbitrary options to the
YoutubeDL constructor.
This change introduces 'extractor.*.retries/timeout/verify' options
as a general way to set these values for all HTTP requests.
'downloader.http.retries/timeout/verify' is a way to override these
options for file downloads only and will fall back to 'extractor.*.…*
values if they haven't been explicitly set.
Also: downloader classes now take an extractor object as first argument
instead of a requests.session.
This commit changes the general behavior from
'Retry on every exception and abort on DownloadError' to
'Only retry on DownloadRetry exceptions and abort on every other one'
The previous version would have retried on several states which
would have no chance of ever succeeding (invalid URLs, etc.)
- '--no-part' command line option to disable them
- 'downloader.http.part' and 'downloader.text.part' config options
Disabling .part files restores the behaviour of the old downloader
implementation.
Mike Fährmann