rsync - Jun 2005 - [Bug 2758] "File exists" error using options -b and --backup-dir with device files.

https://bugzilla.samba.org/show_bug.cgi?id=2758


wayned@samba.org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |ASSIGNED




------- Additional Comments From wayned@samba.org  2005-06-07 10:49 -------
Yes, this particular problem started in 2.6.4 because prior to that, rsync was
failing to backup any updated devices (and apparently symlinks as well).  A
quick fix would be to try to delete the item in the way in the backup dir, but
the backup code is systemically bad at overwriting existing objects (such as
replacing a file with a dir or visa versa), so the code really needs some deep
surgery.

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https://bugzilla.samba.org/show_bug.cgi?id=2758





------- Additional Comments From wayned@samba.org  2005-06-07 10:56 -------
Created an attachment (id=1264)
 --> (https://bugzilla.samba.org/attachment.cgi?id=1264&action=view)
A partial fix

My version of the quick-fix that only deals with removing a device/file/symlink
that's in the way of a device or symlink.  It also fixes a couple problems
in
the logic in the code for backing up a device or a symlink.

I didn't see any reason to constrain the prior object backed up to being
another device when backing up a device, so my code just tries to get rid of
anything that's in the way.  It will still fail for dir/non-dir mismatches,
but
that's a deeper problem that has been around for a very long time.

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