John Starks 5649030e25 Write Windows layer diffs to tar in standard format ... Previously, Windows layer diffs were written using a Windows-internal format based on the BackupRead/BackupWrite Win32 APIs. This caused problems with tar-split and tarsum and led to performance problems in implementing methods such as DiffPath. It also was just an unnecessary differentiation point between Windows and Linux. With this change, Windows layer diffs look much more like their Linux counterparts. They use AUFS-style whiteout files for files that have been removed, and they encode all metadata directly in the tar file. This change only affects Windows post-TP4, since changes to the Windows container storage APIs were necessary to make this possible. Signed-off-by: John Starks <jostarks@microsoft.com>		2016-03-02 16:13:40 -08:00
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src	Write Windows layer diffs to tar in standard format	2016-03-02 16:13:40 -08:00