Exheredludis/paludis/mask_utils.cc
2011-06-12 01:12:11 +01:00

92 lines
2.3 KiB
C++

/* vim: set sw=4 sts=4 et foldmethod=syntax : */
/*
* Copyright (c) 2010, 2011 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/mask_utils.hh>
#include <paludis/package_id.hh>
#include <paludis/mask.hh>
#include <paludis/metadata_key.hh>
#include <paludis/name.hh>
using namespace paludis;
namespace
{
struct WeaklyUnaccepted
{
bool visit(const MetadataCollectionKey<KeywordNameSet> & k) const
{
auto v(k.parse_value());
if (v->empty())
return false;
if (v->end() != v->find(KeywordName("-*")))
return false;
return true;
}
bool visit(const MetadataKey &) const
{
return true;
}
};
struct WeakMask
{
const std::shared_ptr<const PackageID> id;
bool visit(const UnacceptedMask & m) const
{
auto k(id->find_metadata(m.unaccepted_key_name()));
if (k != id->end_metadata())
return (*k)->accept_returning<bool>(WeaklyUnaccepted{});
return true;
}
bool visit(const UserMask &) const
{
return false;
}
bool visit(const RepositoryMask &) const
{
return true;
}
bool visit(const UnsupportedMask &) const
{
return false;
}
};
}
bool
paludis::not_strongly_masked(const std::shared_ptr<const PackageID> & id)
{
for (auto m(id->begin_masks()), m_end(id->end_masks()) ;
m != m_end ; ++m)
if (! (*m)->accept_returning<bool>(WeakMask{id}))
return false;
return true;
}