Mercurial > octave-nkf
view scripts/miscellaneous/ver.m @ 20612:7374a3a6d594
use new string_value method to handle value extraction errors
* urlwrite.cc: Use new string_value method.
author | John W. Eaton <jwe@octave.org> |
---|---|
date | Thu, 08 Oct 2015 17:26:40 -0400 |
parents | 4197fc428c7d |
children |
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## Copyright (C) 2005-2015 William Poetra Yoga Hadisoeseno ## ## 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} {} ver ## @deftypefnx {Function File} {} ver Octave ## @deftypefnx {Function File} {} ver @var{package} ## @deftypefnx {Function File} {v =} ver (@dots{}) ## ## Display a header containing the current Octave version number, license ## string, and operating system. The header is followed by a list of installed ## packages, versions, and installation directories. ## ## Use the package name @var{package} or Octave to limit the listing to a ## desired component. ## ## When called with an output argument, return a vector of structures ## describing Octave and each installed package. The structure includes the ## following fields. ## ## @table @code ## @item Name ## Package name. ## ## @item Version ## Version of the package. ## ## @item Revision ## Revision of the package. ## ## @item Date ## Date of the version/revision. ## @end table ## ## @seealso{version, octave_config_info, usejava, pkg} ## @end deftypefn ## Author: William Poetra Yoga Hadisoeseno <williampoetra@gmail.com> function retval = ver (package = "") if (nargin > 1) print_usage (); endif if (nargout == 0) [unm, err] = uname (); if (err) os_string = "unknown"; else os_string = sprintf ("%s %s %s %s", unm.sysname, unm.release, unm.version, unm.machine); endif hbar(1:70) = "-"; desc = {hbar ["GNU Octave Version: " OCTAVE_VERSION] ["GNU Octave License: " license] ["Operating System: " os_string] hbar}; printf ("%s\n", desc{:}); if (isempty (package)) pkg ("list"); elseif (strcmpi (package, "Octave")) ## Nothing to do, Octave version was already reported else pkg ("list", package); endif else ## Get the installed packages if (isempty (package)) lst = pkg ("list"); ## Start with the version info for Octave retval = struct ("Name", "Octave", "Version", version, "Release", [], "Date", []); for i = 1:numel (lst) retval(end+1) = struct ("Name", lst{i}.name, "Version", lst{i}.version, "Release", [], "Date", lst{i}.date); endfor elseif (strcmpi (package, "Octave")) retval = struct ("Name", "Octave", "Version", version, "Release", [], "Date", []); else lst = pkg ("list", package); if (isempty (lst)) retval = struct ("Name", "", "Version", [], "Release", [], "Date", []); else retval = struct ("Name", lst{1}.name, "Version", lst{1}.version, "Release", [], "Date", lst{1}.date); endif endif endif endfunction %!test %! result = ver; %! assert (result(1).Name, "Octave"); %! assert (result(1).Version, version); %! result = ver ("octave"); %! assert (result(1).Name, "Octave"); %! assert (result(1).Version, version); %!test %! lst = pkg ("list"); %! for n = 1:numel (lst) %! expected = lst{n}.name; %! result = ver (expected); %! assert (result.Name, expected); %! assert (isfield (result, "Version"), true); %! assert (isfield (result, "Release"), true); %! assert (isfield (result, "Date"), true); %! endfor