[−][src]Crate qbsdiff
Fast and memory saving bsdiff 4.x compatible delta compressor and patcher.
Add dependency to Cargo.toml
:
[dependencies]
qbsdiff = "1.3"
Build commands
Build qbsdiff
and qbspatch
commands:
$ cargo build --release --bins --features cmd
$ cd target/release
$ ./qbsdiff --help
$ ./qbspatch --help
Install commands to $CARGO_HOME/bin
:
$ cargo install qbsdiff --features cmd
Examples
Produce the target stream by applying patch
to source
:
use std::io; use qbsdiff::Bspatch; fn bspatch(source: &[u8], patch: &[u8]) -> io::Result<Vec<u8>> { let patcher = Bspatch::new(patch)?; let mut target = Vec::new(); // To preallocate target: //Vec::with_capacity(patcher.hint_target_size() as usize); patcher.apply(source, io::Cursor::new(&mut target))?; Ok(target) }
Produce the patch data by comparing source
with target
:
use std::io; use qbsdiff::Bsdiff; fn bsdiff(source: &[u8], target: &[u8]) -> io::Result<Vec<u8>> { let mut patch = Vec::new(); Bsdiff::new(source, target) .compare(io::Cursor::new(&mut patch))?; Ok(patch) }
Note that qbsdiff
would not generate exactly the same patch file as bsdiff
.
Only the patch file format is promised to be compatible.
Re-exports
pub use bsdiff::Bsdiff; |
pub use bsdiff::ParallelScheme; |
pub use bspatch::Bspatch; |
Modules
bsdiff | |
bspatch |
Enums
Compression | When compressing data, the compression level can be specified by a value in this enum. |