arkive
This is a fork of some of Google go's packages.
arkive/zip
Fork of archive/zip package that supports zip files with arbitrary
data prepended to them (like MojoSetup installers).
(Up-to-date with go 1.10.1)
arkive/tar
Fork of archive/tar
(Up-to-date with go 1.9.2)
License
arkive is BSD-licensed, like the original code.