zchunk

Compressed file format for efficient deltas

The zchunk compressed file format allows splitting a file into independent chunks. This makes it possible to retrieve only changed chunks when downloading a new version of the file, and also makes zchunk files efficient over rsync. Along with the library, this package provides the following utilities:

unzck: To decompress a zchunk file.
zck: To compress a new zchunk file, or re-compress an existing one.
zck_delta_size: To calculate the difference between two zchunk files.
zck_gen_zdict: To create a dictionary for a zchunk file.
zck_read_header: To read a zchunk header.
zckdl: To download a zchunk file.

Versions: 1.5.1
Website: https://github.com/zchunk/zchunk
Licenses: FreeBSD
Package source: gnu/packages/compression.scm
Builds: See build status
Issues: See known issues

Installation

Install the latest version of zchunk as follows:

guix install zchunk

Or install a particular version:

guix install zchunk@1.5.1

You can also install packages in augmented, pure or containerized environments for development or simply to try them out without polluting your user profile. See the guix shell documentation for more information.

Badge code

You can use the following badge to inform users of zchunk about the latest version available in Guix.

Example HTML:

<a href='https://packages.guix.gnu.org/packages/zchunk'><img src='https://packages.guix.gnu.org/packages/zchunk/badges/latest-version.svg' alt='Version in GNU Guix'></a>

Example Markdown:

[![Version in GNU Guix](https://packages.guix.gnu.org/packages/zchunk/badges/latest-version.svg)](https://packages.guix.gnu.org/packages/zchunk)

Example Org:

[[https://packages.guix.gnu.org/packages/zchunk][https://packages.guix.gnu.org/packages/zchunk/badges/latest-version.svg]]