105 lines
3.6 KiB
C++
105 lines
3.6 KiB
C++
/* vim: set sw=4 sts=4 et foldmethod=syntax : */
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/*
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* Copyright (c) 2010, 2011, 2013 Ciaran McCreesh
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*
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* This file is part of the Paludis package manager. Paludis is free software;
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* you can redistribute it and/or modify it under the terms of the GNU General
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* Public License version 2, as published by the Free Software Foundation.
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*
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* Paludis is distributed in the hope that it will be useful, but WITHOUT ANY
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* WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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* FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
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* details.
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*
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* You should have received a copy of the GNU General Public License along with
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* this program; if not, write to the Free Software Foundation, Inc., 59 Temple
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* Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#include <paludis/resolver/get_constraints_for_purge_helper.hh>
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#include <paludis/resolver/reason.hh>
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#include <paludis/resolver/constraint.hh>
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#include <paludis/resolver/resolvent.hh>
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#include <paludis/resolver/resolution.hh>
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#include <paludis/resolver/decision.hh>
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#include <paludis/resolver/make_uninstall_blocker.hh>
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#include <paludis/util/pimp-impl.hh>
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#include <paludis/util/make_shared_copy.hh>
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#include <paludis/util/make_named_values.hh>
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#include <paludis/util/stringify.hh>
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#include <paludis/dep_spec.hh>
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#include <paludis/package_id.hh>
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#include <paludis/package_dep_spec_collection.hh>
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#include <paludis/partially_made_package_dep_spec.hh>
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#include <paludis/elike_slot_requirement.hh>
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#include <paludis/metadata_key.hh>
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#include <paludis/slot.hh>
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using namespace paludis;
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using namespace paludis::resolver;
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namespace paludis
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{
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template <>
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struct Imp<GetConstraintsForPurgeHelper>
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{
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const Environment * const env;
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PackageDepSpecCollection purge_specs;
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Imp(const Environment * const e) :
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env(e),
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purge_specs(nullptr)
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{
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}
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};
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}
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GetConstraintsForPurgeHelper::GetConstraintsForPurgeHelper(const Environment * const e) :
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_imp(e)
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{
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}
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GetConstraintsForPurgeHelper::~GetConstraintsForPurgeHelper() = default;
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void
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GetConstraintsForPurgeHelper::add_purge_spec(const PackageDepSpec & spec)
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{
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_imp->purge_specs.insert(spec);
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}
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const std::shared_ptr<ConstraintSequence>
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GetConstraintsForPurgeHelper::operator() (
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const std::shared_ptr<const Resolution> &,
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const std::shared_ptr<const PackageID> & id,
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const std::shared_ptr<const ChangeByResolventSequence> & was_used_by_ids) const
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{
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const std::shared_ptr<ConstraintSequence> result(std::make_shared<ConstraintSequence>());
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PartiallyMadePackageDepSpec partial_spec({ });
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partial_spec.package(id->name());
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if (id->slot_key())
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partial_spec.slot_requirement(std::make_shared<ELikeSlotExactPartialRequirement>(id->slot_key()->parse_value().parallel_value(), nullptr));
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PackageDepSpec spec(partial_spec);
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const std::shared_ptr<WasUsedByReason> reason(std::make_shared<WasUsedByReason>(was_used_by_ids));
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result->push_back(std::make_shared<Constraint>(make_named_values<Constraint>(
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n::destination_type() = dt_install_to_slash,
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n::force_unable() = false,
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n::from_id() = id,
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n::nothing_is_fine_too() = true,
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n::reason() = reason,
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n::spec() = make_uninstall_blocker(spec),
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n::untaken() = ! _imp->purge_specs.match_any(_imp->env, id, { }),
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n::use_existing() = ue_if_possible
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)));
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return result;
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}
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namespace paludis
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{
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template class Pimp<GetConstraintsForPurgeHelper>;
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}
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