[Bug-tar] Re: GNU tar 1.22

[Sebastian Pipping]

Sergey Poznyakoff wrote:
> Changes in this release:
> 
> * Support for xz compression
> 
> Tar uses xz for compression if one of the following conditions is met: 
> 
>  1. The option --xz or -J (see below) is used.
>  2. The xz binary is set as compressor using --use-compress-program option.
>  3. The file name of the archive being created ends in `.xz' and
>  auto-compress option (-a) is used.
> 
> Xz is used for decompression if one of the following conditions is met: 
> 
>  1. The option --xz or -J is used.
>  2. The xz binary is set as compressor using --use-compress-program option.
>  3. The file is recognized as xz compressed stream data.
> 
> * Short option -J reassigned as a short equivalent of --xz

Are you saying that -J no longer creates LZMA-compressed files?
What are the reasons for this decision?



Sebastian