Bug#1024436: ITP: golang-github-buengese-sgzip -- Experiments for a seekable gzip for use in rclone. Based on pgzip

["Drew Parsons" <dparsons@debian.org>]

Package: wnpp
Severity: wishlist
Owner: Drew Parsons <dparsons@debian.org>

* Package name    : golang-github-buengese-sgzip
  Version         : 0.0~git20220517.9bca1b6-1
  Upstream Author : Sebastian Bünger
* URL             : https://github.com/buengese/sgzip
* License         : Expat
  Programming Lang: Go
  Description     : experiments for a seekable gzip for use in rclone based on pgzip

 This is an experimental implementation of gzip that allows seeking in
 the compressed file. In normal gzip files that can only be achieved by
 decompressing from the start and discarding all data until the selected
 offset. This gzip implementation works around this by creating a special
 metadata file that maps uncompressed blocks to compressed blocks
 allowing it to only read the compressed blocks required.
 .
 Due to necessity of being able to start decompression from any block the
 dictionary is reset after every block. This somewhat negatively effects
 compression ratio but is a necessary tradeof in our use case. The gzip
 files created by this library are valid normal gzip files and can be
 decompressed by any other gzip implementation.
 .
 Warning
 .
 This library was purpose build for the rclone compression backend. If
 you are looking for a multithreaded golang gzip implementation you
 should be using klauspost/pgzip (https://github.com/klauspost/pgzip)
 which is the base for this library.
 .
 License
 .
 This contains large portions of code from the go repository - see
 GO_LICENSE for more information. The changes are released under MIT
 License. See LICENSE for more information.


Required by the latest version of rclone.

To be maintained by the Debian Go Team.