This fixes a locked database issue on Windows.
The issue was caused by the backup process having an open database, and then not passing that connection to the lock handler.
The lock handler would then attempt to open a new connection to the same database, which would fail.
This PR fixes the issue by passing an instance of the database to the lock handler.
Also addressed a logic issue where the dbpath was checked, even if an existing database connection was found.
Also fixed the lock results not setting the EndTime property, causing the reported lelapsed time to be off.
This PR has a large blast radius because it takes the final step and bumps up the Controller to be fully async.
We have historically done a piece-by-piece update, so all operations were already async but the controller interface was kept synchronous.
With this update, the controller is now fully async and all tests are updated.
Most places where the new C# compiler warns about function names not ending in `Async` were also adressed, giving a massive refactor change.
Functionally, no changes are done.
Renamed the options to be more descriptive.
Rewrote the dependency query to be more readable and also check for metadata dependency.
Fixed an edge case where there were no modified files, and no new backup is created.
Fixed some issues with local/utc datetime compares.
Fixed logic for deleting filesets to only look at the filesets themselves. This makes the version lock follow the dlist file, and can create "dangling" volumes that have no filesets, but these will be picked up by compaction.
Updated tests to work correctly.
Added lock-info update option for the backup recreate call, so the UI can also re-create lock information on database rebuilds.
This PR adds support for locking files if the backend supports it.
To activate locking, set the option `--file-lock-duration=30D` and the backup will lock the files.
If the database is rebuilt with the intention of continuing the backups, use the option `--repair-refresh-lock-info` which will update lock information in the database after recreating the database.
The locking works by asking the backend to lock files after a backup has completed.
The implementation keeps track of which files are currently assigned a lock and prevents attempting to delete the files that are currently locked.
Note that the bucket should not have a default lock policy as Duplicati needs to finish the backup before the locking is applied.
In this initial version, Azure Blob Storage, B2, S3 and iDrive are supported with locking.
The CLI is updated to allow setting locks on a specific version. The backend tool is updated to allow setting locks on specific files.
Kenneth Skovhede