First alpha of libsynctory released

Posted by Jesco Freund at Jan. 5, 2011 5:02 p.m.

Some minutes ago, I released the first alpha (ever!) of libsynctory. It is a replacement for librsync, but makes use of different algorithms. Therefore, processing might be slower and fingerprint chunks are definitely larger than the ones produced by librsync. However, libsynctory's fingerprints are much more collision safe, so it is more adequate for environments, where high reliability is estimated more than performance or network load (like e. g. backup applications).

Currently, I consider libsynctory to be “feature-complete”, meaning it offers all the functionality required to serve its intended purpose. It can create a fingerprint of a given file. Using this fingerprint only (and without resorting to the original file), it can calculate the difference between the original file and another file. Using this difference and the original file, the other file can be restored.

However, libsynctory does neither offer any documentation yet (shame on me), nor does it provide a decent interface for error handling (or even backtracing). Furthermore, it has not yet been reviewed for thread safety, so use it with care (if you intend to do so). If you would like to test libsynctory, just grab the source archive from the project page and do the following:

tar -xjvf libsynctory-0.1.0-a1-Source.tar.bz2
cd libsynctory-0.1.0-a1-Source
cmake .
make
sudo make install

This will install the header files into /usr/local/include and the library itself into /usr/local/lib. Within the build directory, you will find some test binaries (in src/test). You can use them for very simple single file operations, just to see how libsynctory works.

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