Mail Archives: cygwin/2008/12/27/22:52:28
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A new release of tar, 1.21-1, is available, leaving 1.20-1 as the previous
version for those using cygwin 1.5. For those testing cygwin 1.7, 1.21-2
replaces 1.20-2.
NEWS:
=====
This is a new stable upstream release. Upstream release notes are
attached. See also the upstream documentation in /usr/share/doc/tar-1.20/.
DESCRIPTION:
============
GNU Tar is an archiver program. It is used to create and manipulate files
that are actually collections of many other files; the program provides
users with an organized and systematic method of controlling a large
amount of data. Despite its name, that is an acronym of "tape archiver",
GNU Tar is able to direct its output to any available devices, files or
other programs, it may as well access remote devices or files. The main
areas of usage for GNU Tar are: storage, backup and transportation.
UPDATE:
=======
To update your installation, click on the "Install Cygwin now" link on the
http://cygwin.com/ web page. This downloads setup.exe to your system.
Save it and run setup, answer the questions and pick up 'tar' from the
'Base' category (it should already be selected).
DOWNLOAD:
=========
Note that downloads from sources.redhat.com (aka cygwin.com) aren't
allowed due to bandwidth limitations. This means that you will need to
find a mirror which has this update, please choose the one nearest to you:
http://cygwin.com/mirrors.html
QUESTIONS:
==========
If you want to make a point or ask a question the Cygwin mailing list is
the appropriate place.
- --
Eric Blake
volunteer cygwin tar maintainer
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version 1.21 - Sergey Poznyakoff, 2008-12-27
* New short option -J
A shortcut for --lzma.
* New option --lzop
* New option --no-auto-compress
Cancels the effect of previous --auto-compress (-a) option.
* New option --no-null
Cancels the effect of previous --null option.
* Compressed format recognition
If tar is unable to determine archive compression format, it falls
back to using archive suffix to determine it.
* VCS support.
Using --exclude-vcs handles also files used internally by Bazaar,
Mercurial and Darcs.
* Transformation scope flags
Name transformation expressions understand additional flags that
control type of archive members affected by them. The flags are:
- r
Apply transformation to regular archive members.
- s
Apply transformation to symbolic link targets.
- h
Apply transformation to hard link targets.
Corresponding upper-case letters negate the meaning, so that
`H' means ``do not apply transformation to hard link targets.''
The scope flags are listed in the third part of an `s' expression,
e.g.:
tar --transform 's|^|/usr/local/|S'
Default is `rsh', which means that transformations are applied to
both regular archive members and to the targets of symbolic and hard
links. If several transform expressions are used, the default flags
can be changed using `flags=' statement before the expressions, e.g.:
tar --transform 'flags=S;s|^|/usr/local/|S'
* Bugfixes
** The --null option disabled handling of tar options in list files. This
is fixed.
** Fixed record size autodetection. If detected record size differs from
the expected value (either default, or set on the command line), tar
always prints a warning if verbosity level is set to 1 or greater,
i.e. if either -t or -v option is given.
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