Exheredludis/paludis/resolver/collect_world.cc
2011-01-01 03:57:52 +00:00

47 lines
1.6 KiB
C++

/* vim: set sw=4 sts=4 et foldmethod=syntax : */
/*
* Copyright (c) 2010 Ciaran McCreesh
*
* This file is part of the Paludis package manager. Paludis is free software;
* you can redistribute it and/or modify it under the terms of the GNU General
* Public License version 2, as published by the Free Software Foundation.
*
* Paludis 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
* this program; if not, write to the Free Software Foundation, Inc., 59 Temple
* Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include <paludis/resolver/collect_world.hh>
#include <paludis/util/set.hh>
#include <paludis/util/wrapped_output_iterator.hh>
#include <paludis/util/options.hh>
#include <paludis/environment.hh>
#include <paludis/match_package.hh>
#include <algorithm>
using namespace paludis;
using namespace paludis::resolver;
const std::shared_ptr<const PackageIDSet>
paludis::resolver::collect_world(
const Environment * const env,
const std::shared_ptr<const PackageIDSet> & from
)
{
const std::shared_ptr<PackageIDSet> result(std::make_shared<PackageIDSet>());
const std::shared_ptr<const SetSpecTree> set(env->set(SetName("world")));
for (auto i(from->begin()), i_end(from->end()) ;
i != i_end ; ++i)
if (match_package_in_set(*env, *set, *i, { }))
result->insert(*i);
return result;
}