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go-deltasync documentation
Pure-Go, cgo-free building blocks for delta synchronization — move and store only the bytes that change between two versions of a file. Every tool is wire-compatible with its reference implementation, ships as a single static binary and an importable Go package, and is held to 100 % test coverage.
| Tool | What it is | Interops with |
|---|---|---|
| zsync2 | download only changed bytes over plain HTTP | zsync |
| rdiff | rsync signature / delta / patch | librsync |
| zchunk | content-defined chunked container + HTTP-Range delta | zchunk (Fedora/DNF) |
| vcdiff | VCDIFF (RFC 3284) delta encode/decode | xdelta3 |
| bita | differential file sync over HTTP (.cba archives) | oll3/bita |
Source for every tool lives at github.com/go-deltasync.