Background Sync Enhancements

[TheScientist]

I have a partially working background task version of the file sync:
https://github.com/TheScientist/windows-universal/tree/%2310_background
I'll track the todos here.

Version 1.2.0:

• SyncTask gets cancelled regularely with errorCode 0x80010008
• Refactoring of duplicate ClientService
• EventListener for better PushNotifications (notification per file)
• KeepAsIs ConflictSolution
• Handle Progress and Cancel in Background Task
• Settings for timetrigger + notifications
• Use built in sqlite (see #117)

Future versions

• Better Sync Algorithm (per Sync framework)�to be able to delta sync

[DecaTec]

The background task will be outproc, right?

[TheScientist]

Yes, we need to move some of the classes into a class library, to make them usable by the bg task. The branch has a partially working version. Sync starts but gets canceled sometimes.

[TheScientist]

Looking at the code from the new owncloud client, I found 2 interesting things:

• they query a windows search index to look for locally changed files
• they compare local files by size to check for changes (we use modified time)

[SunboX]

Oh, nice, a universal owncloud client. Thats a great finding for reference! Let's see if can adapt some things!