# Functions
AppendNewItemsViaIMAP puts items in to corresponding imap folders.
CloseDB will close sqlx db.
CommitToCache saves item data to db.
CommitToDB stores entry in the db.
FetchNewFeedItems loads configuration, fetches rss items and discards ones that are in cache already returning new items and new version of a cache.
InitDB will init sqlx sqlite3 db.
IsExistingID tries to find matching id in db.
MigrateDB will create test db.
# Structs
FeedWithFolder represents folder name and feed item combined.
ItemWithFolder represents rss item (post), folder and original feed title cobined.
# Type aliases
FeedsWithFolders represents collection of FeedWithFolder.
FlatURLs represents url -> folder map.
InputURLs represents freshly parsed configuration.
ItemsCache represents GUIDs cache.
ItemsWithFolders represents collection of ItemWithFolder.