Re: [Bug-tar] wishlist: transparent compression on file- and not archive level

[Joerg Schilling]

Helmut Waitzmann <address@hidden> wrote:

> Christian Hammers <address@hidden> writes:
>
> [zip the individual file chunks rather than the complete tape archive]
> >Of course this would be an incompatible change but when calling the
> >result .tar.czip (chunkwise zipped) that should be ok, or?
>
> >What do you think?
>
> One shouldn't make gnu tar's behavior depend upon the name of the archive
> file.  Please, don't let tar decide what to do with a given archive file
> by drawing conclusions out of the file name.

You cannot implement reliable per file compression.

You either need to compress the file 2 times in order to get the compressed 
size before archiving and then it will fail if the file changes meanwhile

Or you compress to a /tmp file and then you have an unknown size limit for 
compressed files.......

Jörg

-- 
 EMail:address@hidden (home) Jörg Schilling D-13353 Berlin
       address@hidden                (uni)  
       address@hidden     (work) Blog: http://schily.blogspot.com/
 URL:  http://cdrecord.berlios.de/old/private/ ftp://ftp.berlios.de/pub/schily