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########################################################################
##
## Copyright (C) 2005-2024 The Octave Project Developers
##
## See the file COPYRIGHT.md in the top-level directory of this
## distribution or <https://octave.org/copyright/>.
##
## 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
## <https://www.gnu.org/licenses/>.
##
########################################################################
## -*- texinfo -*-
## @deftypefn {} {} ver
## @deftypefnx {} {} ver Octave
## @deftypefnx {} {} ver @var{package}
## @deftypefnx {} {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 query a specific component.
##
## When called with an output argument, return a vector of structures
## describing Octave and each installed package. Each structure includes the
## following fields.
##
## @table @code
## @item Name
## Package name.
##
## @item Version
## Version of the package.
##
## @item Release
## Release of the package (currently unused, defaults to @code{[]}).
##
## @item Date
## Date that the version was released.
## @end table
##
## @seealso{version, usejava, pkg}
## @end deftypefn
function v = ver (package = "")
if (nargout == 0)
hg_id = __octave_config_info__ ("hg_id");
[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 " (hg id: " hg_id ")"]
["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
## Return outputs rather than displaying summary to screen.
if (isempty (package))
## Start with the version info for Octave
[octver, octdate] = version ();
v = struct ("Name", "Octave", "Version", octver,
"Release", [], "Date", octdate);
lst = pkg ("list");
for i = 1:numel (lst)
v(end+1) = struct ("Name", lst{i}.name, "Version", lst{i}.version,
"Release", [], "Date", lst{i}.date);
endfor
elseif (strcmpi (package, "Octave"))
[octver, octdate] = version ();
v = struct ("Name", "Octave", "Version", octver,
"Release", [], "Date", octdate);
else
lst = pkg ("list", package);
if (isempty (lst))
v = struct ("Name", {}, "Version", {}, "Release", {}, "Date", {});
else
v = 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, OCTAVE_VERSION ());
%! assert (result(1).Release, []);
%! assert (result(1).Date, __octave_config_info__ ("release_date"));
%! result = ver ("octave");
%! assert (result.Name, "Octave");
%! assert (result.Version, OCTAVE_VERSION ());
%! assert (result.Release, []);
%! assert (result.Date, __octave_config_info__ ("release_date"));
%!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
%!test
%! result = ver ("%_an_unknown_package_%");
%! assert (isempty (result), true);
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