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/* 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/resolver/prefer_or_avoid_helper.hh>
#include <paludis/util/pimp-impl.hh>
#include <paludis/util/hashes.hh>
#include <paludis/util/tribool.hh>
#include <paludis/util/make_null_shared_ptr.hh>
#include <paludis/util/options.hh>
#include <paludis/name.hh>
#include <paludis/dep_spec.hh>
#include <paludis/match_package.hh>
#include <unordered_set>
#include <list>
using namespace paludis;
using namespace paludis::resolver;
namespace paludis
{
template <>
struct Imp<PreferOrAvoidHelper>
{
const Environment * const env;
std::unordered_set<QualifiedPackageName, Hash<QualifiedPackageName> > prefer_names;
std::unordered_set<QualifiedPackageName, Hash<QualifiedPackageName> > avoid_names;
std::list<std::shared_ptr<const PackageIDSequence> > prefer_matching;
std::list<std::shared_ptr<const PackageIDSequence> > avoid_matching;
Imp(const Environment * const e) :
env(e)
{
}
};
}
PreferOrAvoidHelper::PreferOrAvoidHelper(const Environment * const e) :
_imp(e)
{
}
PreferOrAvoidHelper::~PreferOrAvoidHelper() = default;
void
PreferOrAvoidHelper::add_prefer_name(const QualifiedPackageName & name)
{
_imp->prefer_names.insert(name);
}
void
PreferOrAvoidHelper::add_avoid_name(const QualifiedPackageName & name)
{
_imp->avoid_names.insert(name);
}
void
PreferOrAvoidHelper::add_prefer_matching(const std::shared_ptr<const PackageIDSequence> & s)
{
_imp->prefer_matching.push_back(s);
}
void
PreferOrAvoidHelper::add_avoid_matching(const std::shared_ptr<const PackageIDSequence> & s)
{
_imp->avoid_matching.push_back(s);
}
Tribool
PreferOrAvoidHelper::operator() (const PackageDepSpec & s) const
{
if (s.package_ptr())
{
if (_imp->prefer_names.end() != _imp->prefer_names.find(*s.package_ptr()))
return true;
if (_imp->avoid_names.end() != _imp->avoid_names.find(*s.package_ptr()))
return false;
}
for (auto p(_imp->prefer_matching.begin()), p_end(_imp->prefer_matching.end()) ;
p != p_end ; ++p)
{
bool all(true);
for (auto q((*p)->begin()), q_end((*p)->end()) ; q != q_end ; ++q)
if (! match_package(*_imp->env, s, *q, make_null_shared_ptr(), { }))
{
all = false;
break;
}
if (all)
return true;
}
for (auto p(_imp->avoid_matching.begin()), p_end(_imp->avoid_matching.end()) ;
p != p_end ; ++p)
{
for (auto q((*p)->begin()), q_end((*p)->end()) ; q != q_end ; ++q)
if (match_package(*_imp->env, s, *q, make_null_shared_ptr(), { }))
return false;
}
return indeterminate;
}
namespace paludis
{
template class Pimp<PreferOrAvoidHelper>;
}
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