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Fri May 8 18:49:03 CDT 2009
Hello folks! This batch of updates includes the newly released KDE
4.2.3,
but more noticeably it marks the first departure from the use of
gzip for
compressing Slackware packages. Instead, we will be using xz, based
on
the LZMA compression algorithm. xz offers better compression than
even
bzip2, but still offers good extraction performance (about 3 times
better
than bzip2 and not much slower than gzip in our testing). Since
support
for bzip2 has long been requested, support for bzip2 and the
original lzma
format has also been added (why not?), but this is purely in the
interest
of completeness -- we think most people will probably want to use
either
the original .tgz or the new .txz compression wrappers. The actual
Slackware package format (which consists of the layout within the
package
envelope) has not changed, but this is the first support within
Slackware's
package tools for using alternate compression algorithms.
Some people have asked why we don't pick a single extension,
such as
.slk. While there's certainly a case to be made for that idea, the
tools
would still need to support .tgz to handle older packages. Sticking
with
".tgz" for everything makes no sense. Using extensions that reflect
the
compression format used by the package envelope seems to be the most
transparent approach, and the one that best follows tradition.
As an example of the compression improvement with .txz, have a
look
at the kernel-source package:
Before: kernel-source-2.6.29.2_smp-noarch-1.tgz (73808508 bytes)
After: kernel-source-2.6.29.2_smp-noarch-1.txz (49150104 bytes)
The size of the main package tree in /slackware has been reduced
from
1.9GB to 1.4GB by converting most packages to .txz.
Most of the packages have been converted from .tgz to .txz, but
we
will continue to make the gzip, pkgtools, slackpkg, tar, and xz
packages
in .tgz format for the foreseeable future.
Enjoy! And thanks to Lasse Collin for the great work on
xz. :-)
-------------------------------------
Segundo o changelog do current,parece que teremos um novo sistema de
empacotamento no 13.0,gostaria de saber quais suas opiniões sobre esse
novo sistema de empacotamento.
[]'s
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