This commit is contained in:
Sergey Poznyakoff
2007-10-31 12:57:04 +00:00
parent 8e3a2a520d
commit 5d4a682a55
3 changed files with 54 additions and 6 deletions

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@@ -1,3 +1,12 @@
2007-10-31 Sergey Poznyakoff <gray@gnu.org.ua>
* src/checkpoint.c: New actions: bell and ttyout
* src/system.c (sys_exec_info_script)
(sys_exec_checkpoint_script): pass the current blocking factor in
TAR_BLOCKING_FACTOR environment variable.
* doc/tar.texi: Update
* NEWS: Update
2007-10-30 Sergey Poznyakoff <gray@gnu.org.ua>
* doc/Makefile.am: Use texi2html and the CVS version of gendocs.sh

7
NEWS
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@@ -1,4 +1,4 @@
GNU tar NEWS - User visible changes. 2007-10-29
GNU tar NEWS - User visible changes. 2007-10-31
Please send GNU tar bug reports to <bug-tar@gnu.org>
@@ -26,6 +26,11 @@ 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.
* 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.
version 1.19 - Sergey Poznyakoff, 2007-10-10

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@@ -2460,6 +2460,13 @@ for a complete description.
The @var{action} argument can be one of the following:
@table @asis
@item bell
Produce an audible bell on the console.
@item dot
@itemx .
Print a single dot on the standard listing stream.
@item echo
Display a textual message on the standard error, with the status and
number of the checkpoint. This is the default.
@@ -2468,15 +2475,14 @@ number of the checkpoint. This is the default.
Display @var{string} on the standard error. Before output, the string
is subject to meta-character expansion.
@item dot
@itemx .
Print a single dot on the standard listing stream.
@item exec=@var{command}
Execute the given @var{command}.
@item sleep=@var{time}
Wait for @var{time} seconds.
@item exec=@var{command}
Execute the given @var{command}.
@item ttyout=@var{string}
Output @var{string} on the current console (@file{/dev/tty}).
@end table
Several @option{--checkpoint-action} options can be specified. The
@@ -3805,6 +3811,26 @@ audible bell and the message described above at each checkpoint:
--checkpoint-action='echo=\aHit %s checkpoint #%u'
@end smallexample
@cindex @code{bell}, checkpoint action
There is also a special action which produces an audible signal:
@samp{bell}. It is not equivalent to @samp{echo='\a'}, because
@samp{bell} sends the bell directly to the console (@file{/dev/tty}),
whereas @samp{echo='\a'} sends it to the standard error.
@cindex @code{ttyout}, checkpoint action
The @samp{ttyout=@var{string}} action outputs @var{string} to
@file{/dev/tty}, so it can be used even if the standard output is
redirected elsewhere. The @var{string} is subject to the same
modifications as with @samp{echo} action. In contrast to the latter,
@samp{ttyout} does not prepend @command{tar} executable name to the
string, nor does it output a newline after it. For example, the
following action will print the checkpoint message at the same screen
line, overwriting any previous message:
@smallexample
--checkpoint-action="ttyout=\rHit %s checkpoint #%u"
@end smallexample
@cindex @code{dot}, checkpoint action
Another available checkpoint action is @samp{dot} (or @samp{.}). It
instructs @command{tar} to print a single dot on the standard listing
@@ -3849,6 +3875,10 @@ additional arguments. Its exit code is ignored. It gets a copy of
@item TAR_ARCHIVE
The name of the archive @command{tar} is processing.
@vrindex TAR_BLOCKING_FACTOR, checkpoint script environment
@item TAR_BLOCKING_FACTOR
Current blocking factor (@pxref{Blocking}.
@vrindex TAR_CHECKPOINT, checkpoint script environment
@item TAR_CHECKPOINT
The checkpoint number.
@@ -10621,6 +10651,10 @@ environment variables:
@item TAR_ARCHIVE
The name of the archive @command{tar} is processing.
@vrindex TAR_BLOCKING_FACTOR, info script environment variable
@item TAR_BLOCKING_FACTOR
Current blocking factor (@pxref{Blocking}.
@vrindex TAR_VOLUME, info script environment variable
@item TAR_VOLUME
Ordinal number of the volume @command{tar} is about to start.