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## Copyright (C) 2005-2015 Søren Hauberg
## Copyright (C) 2010 VZLU Prague, a.s.
##
## 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} {} uninstall (@var{pkgnames}, @var{handle_deps}, @var{verbose}, @var{local_list}, @var{global_list}, @var{global_install})
## Undocumented internal function.
## @end deftypefn
function uninstall (pkgnames, handle_deps, verbose, local_list,
global_list, global_install)
## Get the list of installed packages.
[local_packages, global_packages] = installed_packages(local_list,
global_list);
if (global_install)
installed_pkgs_lst = {local_packages{:}, global_packages{:}};
else
installed_pkgs_lst = local_packages;
endif
num_packages = length (installed_pkgs_lst);
delete_idx = [];
for i = 1:num_packages
cur_name = installed_pkgs_lst{i}.name;
if (any (strcmp (cur_name, pkgnames)))
delete_idx(end+1) = i;
endif
endfor
## Are all the packages that should be uninstalled already installed?
if (length (delete_idx) != length (pkgnames))
if (global_install)
## Try again for a locally installed package.
installed_pkgs_lst = local_packages;
num_packages = length (installed_pkgs_lst);
delete_idx = [];
for i = 1:num_packages
cur_name = installed_pkgs_lst{i}.name;
if (any (strcmp (cur_name, pkgnames)))
delete_idx(end+1) = i;
endif
endfor
if (length (delete_idx) != length (pkgnames))
## FIXME: We should have a better error message.
warning ("some of the packages you want to uninstall are not installed");
endif
else
## FIXME: We should have a better error message.
warning ("some of the packages you want to uninstall are not installed");
endif
endif
if (isempty (delete_idx))
warning ("no packages will be uninstalled");
else
## Compute the packages that will remain installed.
idx = setdiff (1:num_packages, delete_idx);
remaining_packages = {installed_pkgs_lst{idx}};
## Check dependencies.
if (handle_deps)
error_text = "";
for i = 1:length (remaining_packages)
desc = remaining_packages{i};
bad_deps = get_unsatisfied_deps (desc, remaining_packages);
## Will the uninstallation break any dependencies?
if (! isempty (bad_deps))
for i = 1:length (bad_deps)
dep = bad_deps{i};
error_text = [error_text " " desc.name " needs " ...
dep.package " " dep.operator " " dep.version "\n"];
endfor
endif
endfor
if (! isempty (error_text))
error ("the following dependencies where unsatisfied:\n %s", error_text);
endif
endif
## Delete the directories containing the packages.
for i = delete_idx
desc = installed_pkgs_lst{i};
## If an 'on_uninstall.m' exist, call it!
if (exist (fullfile (desc.dir, "packinfo", "on_uninstall.m"), "file"))
wd = pwd ();
cd (fullfile (desc.dir, "packinfo"));
on_uninstall (desc);
cd (wd);
endif
## Do the actual deletion.
if (desc.loaded)
rmpath (desc.dir);
if (exist (getarchdir (desc)))
rmpath (getarchdir (desc));
endif
endif
if (exist (desc.dir, "dir"))
[status, msg] = rmdir (desc.dir, "s");
if (status != 1 && exist (desc.dir, "dir"))
error ("couldn't delete directory %s: %s", desc.dir, msg);
endif
[status, msg] = rmdir (getarchdir (desc), "s");
if (status != 1 && exist (getarchdir (desc), "dir"))
error ("couldn't delete directory %s: %s", getarchdir (desc), msg);
endif
if (dirempty (desc.archprefix))
rmdir (desc.archprefix, "s");
endif
else
warning ("directory %s previously lost", desc.dir);
endif
endfor
## Write a new ~/.octave_packages.
if (global_install)
if (length (remaining_packages) == 0)
unlink (global_list);
else
global_packages = save_order (remaining_packages);
save (global_list, "global_packages");
endif
else
if (length (remaining_packages) == 0)
unlink (local_list);
else
local_packages = save_order (remaining_packages);
save (local_list, "local_packages");
endif
endif
endif
endfunction
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