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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_TREE_STRUCTURE_TREE_STRUCTURE_UTILS_HPP
#define INCLUDED_SRC_BUILDTOOL_TREE_STRUCTURE_TREE_STRUCTURE_UTILS_HPP
#include <string>
#include "src/buildtool/common/artifact_digest.hpp"
#include "src/buildtool/storage/storage.hpp"
#include "src/buildtool/tree_structure/tree_structure_cache.hpp"
#include "src/utils/cpp/expected.hpp"
class TreeStructureUtils final {
public:
/// \brief Compute the tree structure of a git tree and add corresponding
/// coupling to the cache. Tree structure is a directory, where all blobs
/// and symlinks are replaced with empty blobs. Every subtree gets written
/// to the cache as well. Expects tree is present in the storage.
/// \param tree Git tree to be analyzed. Must be present in the
/// storage.
/// \param storage Storage (GitSHA1) to be used for adding new tree
/// structure artifacts
/// \param cache Cache for storing key-value dependencies.
/// \return Digest of the tree structure that is present in the storage on
/// success, or an error message on failure.
[[nodiscard]] static auto Compute(ArtifactDigest const& tree,
Storage const& storage,
TreeStructureCache const& cache) noexcept
-> expected<ArtifactDigest, std::string>;
};
#endif // INCLUDED_SRC_BUILDTOOL_TREE_STRUCTURE_TREE_STRUCTURE_UTILS_HPP
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