code.ivysaur.me

assimilate-packer

A shell script to handle precomp+zpaq compression workflow.

Zip archives of nearly-identical data might be almost entirely different after compression. Best compression can be had by unpacking the archives first; but naively doing so loses bit-exact archive reconstruction. By using a precomp pass, as well as a global deduplicating compressor, maximum storage efficiency can be achieved.

• Parallel precomp scanning
• Graphical extraction interface
• Dependencies: precomp, zpaq, dialog, and GNU Parallel
• Assumes Cygwin, although porting would be possible

Usage

Usage:
  assimilate [options]

Options:
  {no option argument}  Begin interactive pack/unpack workflow
  --child 'arg'         (Internal use only)
  --help                Display this message
  --pack                Immediately pack
  --unpack-menu         Begin interactive unpack workflow

Changelog

2015-11-08: r04

• Fix an issue packing and unpacking un-precomp-able files
• ⬇️ assimilate-packer-r04.tar.xz (1.69 KiB)

2015-11-08: r01

• Inital public release
• ⬇️ assimilate-packer-r01.tar.xz (1.64 KiB)