I posted a question a few days ago concerning file differencing and I got
some thought provoking answers. My original question dealt with identifying
file differences for storage of multiple versions of documents, some binary
some textual. I know that there are many excellent version control systems
out there (cvs, subversion, etc) but due to restrictions on the project I'm
working on we have to have a custom implementation. In order to gain what
could be some substantial savings for us on both bandwidth and file storage
we have decided to only store and transmit version differences in our system
(backend is sql server). For the most flexibility we want to go with a
binary differencing model. While searching around I found RFC 3284 "The
VCDIFF Generic Differencing and Compression Data Format" that really seemed
to fit my needs from a very high level. A little more work showed that other
version control systems (Vault) actually implemented this RFC for it's
system. Now I've started to digest the RFC in an effort to start some
prototype implementations but as is common the RFC is a fairly high level
document. Is anyone aware on any subject matter concerning implementing
binary differencing such as VCDiff, preferably some .net (or any) code
snippets. I plan to implement this in the .Net framework (C#) hence my post
to this group. Any advice or direction would be greatly welcomed. Thanks!
Josh Carlisle