sharc

[!CAUTION] Alpha version, do not use

Simple High-speed ARChiver

sharc is a very fast file archiver, using the density compression library. It is ideal when speed is paramount, followed by compression ratio - although excellent ratios can be achieved with certain settings and low entropy data.

sharc uses parallel processing to achieve maximum encode/decode performance. It is especially efficient with large files.

Build

sharc can be built on rust-compatible platforms. First use rustup to install rust.

a) get the source code:

    git clone https://github.com/g1mv/sharc.git
    cd sharc

b) build and print commands list:

    RUSTFLAGS="-C target-cpu=native" cargo build --release
    target/release/sharc -h

Usage

To compress a file named 'test' into 'test.sharc' using the default algorithm (density cheetah):

sharc test

To decompress 'test.sharc',

sharc -d test.sharc

or:

unsharc test.sharc

Compression algorithm can be selected with the -c option. Fastest algorithm (density chameleon):

sharc -c1 test

Well-balanced default (density cheetah)

sharc -c2 test

Slower but still very fast, with better compression ratio (density lion):

sharc -c3 test

For help and a full list of options:

sharc -h