DO NOT REPLY [Bug 5954] Implement something like --very-fuzzy

[samba-bugs at samba.org]

https://bugzilla.samba.org/show_bug.cgi?id=5954





------- Comment #1 from matt at mattmccutchen.net  2008-12-08 16:40 CST -------
(In reply to comment #0)
> If rsync were to calculate block hashes for EVERY FILE on BOTH SIDES, and then
> use those hashes as the sources of new files, this would not take the 2 weeks
> it would take otherwise. It might take an hour to calculate hashes. But that'd
> be fine.

--fuzzy chooses one destination file whose name looks the most similar to the
source name and uses that as a basis, so it fits nicely into rsync's existing
workflow.  Your suggestion of using the entire destination as a basis for every
transfer is fundamentally different, so I wouldn't call it --very-fuzzy. 
Implementing that in rsync would be a pain.  A technique that accomplishes
essentially the same thing is to tar up the source and destination and then
delta-transfer the tar file, assuming you have enough disk space.


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