Version 1.22

[chaz/tar] / NEWS

diff --git a/NEWS b/NEWS
index 394925c4a040fa662e25b97007059fe6abee8f0a..088dbfb298681dd158a738cbf0ad0e8833e732b5 100644 (file)
--- a/NEWS
+++ b/NEWS
@@ -1,8 +1,99 @@
-GNU tar NEWS - User visible changes. 2007-10-29
+GNU tar NEWS - User visible changes. 2009-03-05

 Please send GNU tar bug reports to <bug-tar@gnu.org>
 
 \f
 Please send GNU tar bug reports to <bug-tar@gnu.org>
 
 \f

-version 1.19.1 (CVS)
+version 1.22 - Sergey Poznyakoff, 2009-03-05
+
+* 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
+
+* New option -I
+
+The -I option is assigned as a short equivalent for
+--use-compress-program.
+
+\f
+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.
+
+\f
+
+version 1.20 - Sergey Poznyakoff, 2008-04-14

 
 * New option --auto-compress (-a)
 
 
 * New option --auto-compress (-a)
 


@@ -22,9 +113,50 @@ they refer to, instead of creating usual hard link members (type '1').
 
 This action allows to specify an action to be executed upon hitting a
 checkpoint.  Recognized actions are: dot, echo (the default),
 
 This action allows to specify an action to be executed upon hitting a
 checkpoint.  Recognized actions are: dot, echo (the default),

-echo=string, and sleep=value.  Any number of `--checkpoint-action'
-options can be specified, the actions will be executed in order of
-their appearance in the command line.  
+echo=string, ttyout=string, exec=cmdline, and sleep=value.  Any number
+of `--checkpoint-action' options can be specified, the actions will be
+executed in order of their appearance in the command line.  See
+chapter 3.8 "Checkpoints" for a complete description.
+
+* New options --no-check-device, --check-device.
+
+The `--no-check-device' option disables comparing device numbers during
+preparatory stage of an incremental dump.  This allows to avoid
+creating full dumps if the device numbers change (e.g. when using an
+LVM snapshot).
+
+The `--check-device' option enables comparing device numbers.  This is
+the default.  This option is provided to undo the effect of the previous
+`--no-check-device' option, e.g. if it was set in TAR_OPTIONS
+environment variable.
+
+* The --transform option.
+
+Any number of `--transform' options can be given in the command line.
+The specified transformations will be applied in turn.
+
+The argument to `--transform' option can be a list of replace
+expressions, separated by a semicolon (as in `sed').
+
+Filename transformations are applied to symbolic link targets
+during both creation and extraction.  Tar 1.19 used them only
+during extraction.
+
+For a detailed description, see chapter 6.7 "Modifying File and Member
+Names". 
+
+* Info (end-of-volume) scripts
+
+The value of the blocking factor is made available to info and
+checkpoint scripts via environment variable TAR_BLOCKING_FACTOR.
+
+* Incremental archives
+
+Improved (sped up) extracting from incremental archives.
+
+* Bugfixes.
+** Fix bug introduced in version 1.19: tar refused to update non-existing
+archives.

 
 \f
 version 1.19 - Sergey Poznyakoff, 2007-10-10
 
 \f
 version 1.19 - Sergey Poznyakoff, 2007-10-10


@@ -957,7 +1089,7 @@ Versions 1.07 back to 1.00 by Jay Fenlason.
 \f
 
 Copyright (C) 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2003,
 \f
 
 Copyright (C) 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2003,

-2004, 2005, 2006, 2007 Free Software Foundation, Inc.
+2004, 2005, 2006, 2007, 2008 Free Software Foundation, Inc.

 
 This file is part of GNU tar.
 
 
 This file is part of GNU tar.