replican-sync provides local file & directory synchronization with an implementation of the rsync algorithm. It is not compatible with the wire protocols and indexing used in the rsync(1) utility.

• Linux, OSX, MinGW
• Hierarchical, content-addressable filesystem model down to the block level.
• Match and patch files with rolling checksum and strong cryptographic hash.
• Match and patch directory structures.

• Handle symbolic links.
• Synchronization behavior options (filtering, handling deletes, etc.)
• Performance benchmarking, tuning, optimization.

goinstall github.com/cmars/replican-sync/replican/sync

See rp.go, fs_test.go and merge_test.go for examples.

I'm working on a decentralized folder synchronization service/application. replican-sync is just the first step.

MIT, see LICENSE. If you use replican-sync, I'd like to hear from you.

replican is developed in Go.

You'll need to first goinstall:

• github.com/bmizerany/assert
• optarg.googlecode.com/hg/optarg

Run gb from the top level.

'gb -t' to execute unit tests.

Indexing, matching & patching are tested with a little utility that fabricates directory structures of arbitrary random, but reproducible binary data. See replican/treegen.