SyncFileStatus' purpose is to track overlay icon status.
Instead of putting comments and default: clauses in switch
on both sides about unused enums, use different enums.
This also remove STATUS_NEW which is the equivalent of
STATUS_SYNC in all shell extension implementations, and
remove STATUS_UPDATED and STATUS_STAT_ERROR which have
the same semantic as STATUS_UPTODATE and STATUS__ERROR.
This currently is no-op code since the socket API isn't notified
that the tainted folder list changed, and the result is the same
since a sync will be triggered within the next 5 seconds and the
modified folder will be shown as SYNC at that point anyway.
Removing the dependency to the file watcher allows moving the
status estimation logic to libsync.
This will help moving the SyncEngine construction in the constructor
and allow moving functionalities from Folder to SyncEngine or its
delegated objects.
If the user tries to install an older version of a branded client
with shell extensions, and also install the 2.1 ownCloud client
side-by-side, both shell extensions DLLs will be registered and might
lead to both DLLs versions being loaded by exlorer, causing a system
crash.
Since we don't support both branded and non-branded shell extensions
to work at the same time, at least make sure to unregister any legacy
CLSID that could cause explorer to load the previous version DLL.
Since the quota is a per-folder value, this will make the displayed data
more useful when a single sync folder is configured.
Of course each subfolder could have a different quota again.
The date we receive from the server is an ISO8601 datetime that
includes the offset from UTC. Qt does correctly parse this
information and creates the appropriate QDateTime object.
Calling setTimeSpec(UTC) will force the timezone offset to 0 and
thereby change the referenced point in time to an incorrect one.
Soldiering on with a broken or incomplete response could lead to
incorrect sync behavior.
Since discovery uses LsCol jobs which already handle errors
correctly, this should not have a significant impact.
In SQLite bindings are not cleared by sqlite3_reset() calls, so
skipping a sqlite3_bind call to create a NULL value doesn't work,
instead the previous value will be written.
To fix this, I clear all bindings in SqlQuery::reset and make sure
to explicitly bind NULL when desired in SqlQuery::bind.
To make sure there's no confusion about SqlQuery::reset and
sqlite3_reset, I rename our method to reset_and_clear_bindings().
