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// Copyright 2024 Huawei Cloud Computing Technology Co., Ltd.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#ifndef INCLUDED_SRC_BUILDTOOL_STORAGE_COMPACTIFIER_HPP
#define INCLUDED_SRC_BUILDTOOL_STORAGE_COMPACTIFIER_HPP
#include <cstddef>
#include "src/buildtool/storage/local_cas.hpp"
class Compactifier final {
public:
/// \brief Remove invalid entries from the storage. An entry is valid if the
/// file and its parent directory have a hexadecimal name of the proper
/// size.
/// \param cas Storage to be inspected.
/// \return True if storage does not contain invalid entries.
[[nodiscard]] static auto RemoveInvalid(LocalCAS<false> const& cas) noexcept
-> bool;
/// \brief Remove spliced entries from the storage.
/// \param local_cas Storage to be inspected.
/// \return True if object storages do not contain spliced
/// entries.
[[nodiscard]] static auto RemoveSpliced(LocalCAS<false> const& cas) noexcept
-> bool;
/// \brief Split and remove from the storage every entry that is larger than
/// the compactification threshold. Results of splitting are added to the
/// LocalCAS.
/// \param local_cas LocalCAS to store results of splitting.
/// \param threshold Compactification threshold.
/// \return True if the storage doesn't contain splitable
/// entries larger than the compactification threshold afterwards.
[[nodiscard]] static auto SplitLarge(LocalCAS<false> const& cas,
size_t threshold) noexcept -> bool;
};
#endif // INCLUDED_SRC_BUILDTOOL_STORAGE_COMPACTIFIER_HPP
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