This implements the gpodder API from scratch. It turned out that
libmygpo-qt has several critical bugs, and there's no response to pull
requests upstream. So using that library was not an option.
The implementation into kasts consists of the following:
- Can sync with gpodder.net or with a nextcloud server that has the
nextcloud-gpodder app installed. (This app is mostly API compatible
with gpodder.)
- Passwords are stored using qtkeychain. If the keychain is
unavailable it will fallback to file.
- It syncs podcast subscriptions and episode play positions, including
marking episodes as played. Episodes that have a non-zero play
position will be added to the queue automatically.
- It will check for a metered connection before syncing. This is
coupled to the allowMeteredFeedUpdates setting.
- Full synchronization can be performed either manually (from the
settings page) or through automatic triggers: on startup and/or on
feed refresh.
- There is an additional possibility to trigger quick upload-only syncs
to make sure that the local changes are immediately uploaded to the
server (if the connection allows). This will trigger when
subscriptions are added or removed, when the pause/play button is
toggled or an episode is marked as played.
- This implements a few safeguards to avoid having multiple feed URLS
pointing to the same underlying feed (e.g. http vs https). This
solves part of #17
Solves #13
The feed update routine which is now spread over several methods
in Fetcher, is now put into a self-contained KJob. This will allow
to re-use this job later on in e.g. gpodder sync, where it's
required to update feeds before syncing episode statuses.
This also makes the feed update abortable.
Lastly, but most importantly, the feed update procedure has been
optimized to minimize database transactions, resulting in a dramatic
speed-up. This is especially true for importing new feeds, which
will now be at least 5x faster on slow hardware.
This adds a new setting to the Settings page.
Existing enclosures and images will be moved to the new location
(first copied, then deleted in the original location). If any of
the copy actions fail, the operation is aborted and the original
path is restored.
The StorageMoveJob is set up in such a way that it's easy to add other
files or subfolders in the future.
Solves #15
