update packages

[CreaPhase.git] / octave_packages / m / miscellaneous / tar.m

diff --git a/octave_packages/m/miscellaneous/tar.m b/octave_packages/m/miscellaneous/tar.m
new file mode 100644 (file)
index 0000000..8b8be41
--- /dev/null
+++ b/octave_packages/m/miscellaneous/tar.m
@@ -0,0 +1,66 @@
+## Copyright (C) 2005-2012 Søren Hauberg
+##
+## This file is part of Octave.
+##
+## Octave is free software; you can redistribute it and/or modify it
+## under the terms of the GNU General Public License as published by
+## the Free Software Foundation; either version 3 of the License, or (at
+## your option) any later version.
+##
+## Octave is distributed in the hope that it will be useful, but
+## WITHOUT ANY WARRANTY; without even the implied warranty of
+## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+## General Public License for more details.
+##
+## You should have received a copy of the GNU General Public License
+## along with Octave; see the file COPYING.  If not, see
+## <http://www.gnu.org/licenses/>.
+
+## -*- texinfo -*-
+## @deftypefn  {Function File} {@var{entries} =} tar (@var{tarfile}, @var{files})
+## @deftypefnx {Function File} {@var{entries} =} tar (@var{tarfile}, @var{files}, @var{root})
+## Pack @var{files} @var{files} into the TAR archive @var{tarfile}.  The
+## list of files must be a string or a cell array of strings.
+##
+## The optional argument @var{root} changes the relative path of @var{files}
+## from the current directory.
+##
+## If an output argument is requested the entries in the archive are
+## returned in a cell array.
+## @seealso{untar, bzip2, gzip, zip}
+## @end deftypefn
+
+## Author: Søren Hauberg <hauberg@gmail.com>
+
+function entries = tar (tarfile, files, root = ".")
+
+  if (nargin < 2 || nargin > 3)
+    print_usage ();
+  endif
+
+  if (ischar (files))
+    files = cellstr (files);
+  endif
+
+  if (! (ischar (tarfile) && iscellstr (files) && ischar (root)))
+    error ("tar: all arguments must be character strings");
+  endif
+
+  cmd = sprintf ("tar cvf %s -C %s %s", tarfile, root,
+                 sprintf (" %s", files{:}));
+
+  [status, output] = system (cmd);
+
+  if (status)
+    error ("tar: tar exited with status = %d", status);
+  endif
+
+  if (nargout > 0)
+    if (output(end) == "\n")
+      output(end) = [];
+    endif
+    entries = strsplit (output, "\n");
+    entries = entries';
+  endif
+
+endfunction