A streaming compression/decompression library which implements the LZ4BlockOutputStream
format from lz4-java.
Beware: this format is not compatible with the standard LZ4 Block format. You should not use it unless you have some historical data compressed using the Java code.
This repository contains:
lz4jb
: a library which implements the Read
and Write
traits,gzip
,Lz4BlockOutput
is a wrapper around a type which implements the Write
trait.
```rust use lz4jb::Lz4BlockOutput; use std::io::Write;
fn main() -> std::io::Result<()> {
let mut output = Vec::new(); // Vec
Lz4BlockInput
is a wrapper around a type which implements the Read
trait.
```rust use lz4jb::Lz4BlockInput; use std::io::Read;
const D: [u8; 24] = [ 76, 90, 52, 66, 108, 111, 99, 107, 16, 3, 0, 0, 0, 3, 0, 0, 0, 82, 228, 119, 6, 46, 46, 46, ];
fn main() -> std::io::Result<()> { let mut output = String::new(); Lz4BlockInput::new(&D[..]) // &[u8] implements the Read trait .readtostring(&mut output)?; println!("{}", output); Ok(()) } ```
In the cli folder, there is a command line tool to compress and decompress using this library.
```bash $ cargo install cli ... $ lz4jb -h lz4jb 0.1.0 A compression tool which implements the LZ4BlockOutputStream format from https://github.com/lz4/lz4-java. This is not compatible with the standard LZ4 Block format.
USAGE: lz4jb [FLAGS] [OPTIONS] [file]...
FLAGS: -z, --compress Compress. This is the default operation mode. -d, --decompress Decompress. [aliases: uncompress] -f, --force Force the compression or decompression. -h, --help Prints help information -k, --keep Keep (don't delete) input files during compression or decompression. -l, --list Test the integrity of compressed files. -c, --stdout Write output on standard output; keep original files unchanged. -t, --test Test the integrity of compressed files. -V, --version Prints version information
OPTIONS:
-b, --blocksize
ARGS:
See the LICENCE file.