Expand description
§bsdiff-rs
Bsdiff is a method of diffing files. This crate is a port of a bsdiff library. High performance patching. All written in safe Rust.
It is usually a good idea to use bsdiff alongside a compression algorithm like bzip2.
§Usage
fn main() { let one = vec![1, 2, 3, 4, 5]; let two = vec![1, 2, 4, 6]; let mut patch = Vec::new(); bsdiff::diff(&one, &two, &mut patch).unwrap(); let mut patched = Vec::with_capacity(two.len()); bsdiff::patch(&one, &mut patch.as_slice(), &mut patched).unwrap(); assert_eq!(patched, two); }§Diffing Files
fn diff_files(file_a: &str, file_b: &str, patch_file: &str) -> std::io::Result<()> { let old = std::fs::read(file_a)?; let new = std::fs::read(file_b)?; let mut patch = Vec::new(); bsdiff::diff(&old, &new, &mut patch)?; // TODO: compress `patch` here std::fs::write(patch_file, &patch) }§Patching Files
fn patch_file(file_a: &str, patch_file: &str, file_b: &str) -> std::io::Result<()> { let old = std::fs::read(file_a)?; let patch = std::fs::read(patch_file)?; // TODO: decompress `patch` here let mut new = Vec::new(); bsdiff::patch(&old, &mut patch.as_slice(), &mut new)?; std::fs::write(file_b, &new) }