jerzyla / filediff

Rolling hash file diff

Commands

1. Create an signature from testdata/000.old file with chunk size 512 bytes and store results in testdata/000.signature

The signature file stores chunk size and rolling checksums and strong checksums for every chunk.

go run cmd/main.go signature testdata/000.old testdata/000.signature --chunksize 512

2. Calculate delta between signature testdata/000.signature and testdata/000.new file, store results in testdata/000.delta

The delta file stores operations required to make from the old file a new one.

go run cmd/main.go delta testdata/000.signature testdata/000.new testdata/000.delta