Lib.rs

archiv

archiv is a library and CLI for working with .archiv files.

.archiv files are a simplistic "file format" that keeps getting reinvented, by me.

This file format is:

A header, then, repeatedly:

• length, 8 bytes, little-endian: the length of the following data
• data, the data

You've probably heard of this before.

On top of this we can layer things like:

• stream compression
• item compression
• item compression with a shared dictionary
• item compression with an embedded dictionary
• parallel processing of item compressed files
• indexes
• docs and shared terminology

Contributing

Github.

License

MIT / Apache-2

lib.rs:

use archiv::Compress;

let opts = archiv::CompressOptions::default();
let mut archiv = opts.stream_compress(io::stdout())?;
archiv.write_item(b"hello")?;
archiv.finish()?;

use archiv::Expand;

let opts = archiv::ExpandOptions::default();
let mut archiv = opts.stream(io::stdin().lock())?;
while let Some(mut item) = archiv.next_item()? {
    let mut s = String::new();
    item.read_to_string(&mut s)?;
    println!("{s}");
}