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// Copyright 2022 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_COMMON_ARTIFACT_DESCRIPTION_HPP
#define INCLUDED_SRC_BUILDTOOL_COMMON_ARTIFACT_DESCRIPTION_HPP
#include <filesystem>
#include <optional>
#include <string>
#include <utility> // std::move
#include <variant>
#include "src/buildtool/common/artifact.hpp"
#include "src/buildtool/common/artifact_digest.hpp"
#include "src/buildtool/crypto/hash_function.hpp"
#include "src/buildtool/file_system/object_type.hpp"
class ArtifactDescription final {
using Local = std::pair<std::filesystem::path, std::string>;
using Known =
std::tuple<ArtifactDigest, ObjectType, std::optional<std::string>>;
using Action = std::pair<std::string, std::filesystem::path>;
using Tree = std::string;
public:
[[nodiscard]] static auto CreateLocal(std::filesystem::path path,
std::string repository) noexcept
-> ArtifactDescription;
[[nodiscard]] static auto CreateAction(std::string action_id,
std::filesystem::path path) noexcept
-> ArtifactDescription;
[[nodiscard]] static auto CreateKnown(
ArtifactDigest digest,
ObjectType file_type,
std::optional<std::string> repo = std::nullopt) noexcept
-> ArtifactDescription;
[[nodiscard]] static auto CreateTree(std::string tree_id) noexcept
-> ArtifactDescription;
[[nodiscard]] auto Id() const& noexcept -> ArtifactIdentifier const& {
return id_;
}
[[nodiscard]] auto Id() && noexcept -> ArtifactIdentifier {
return std::move(id_);
}
[[nodiscard]] auto IsKnown() const noexcept -> bool {
return std::holds_alternative<Known>(data_);
}
[[nodiscard]] auto IsTree() const noexcept -> bool {
return std::holds_alternative<Tree>(data_);
}
[[nodiscard]] static auto FromJson(HashFunction::Type hash_type,
nlohmann::json const& json) noexcept
-> std::optional<ArtifactDescription>;
[[nodiscard]] auto ToJson() const noexcept -> nlohmann::json;
[[nodiscard]] auto ToArtifact() const noexcept -> Artifact;
[[nodiscard]] auto ToString(int indent = 0) const noexcept -> std::string;
[[nodiscard]] auto operator==(
ArtifactDescription const& other) const noexcept -> bool {
return id_ == other.id_;
}
[[nodiscard]] auto operator!=(
ArtifactDescription const& other) const noexcept -> bool {
return not(*this == other);
}
private:
std::variant<Local, Known, Action, Tree> data_;
ArtifactIdentifier id_;
template <typename T>
explicit ArtifactDescription(T data) noexcept
: data_{std::move(data)}, id_{ComputeId(ToJson())} {}
[[nodiscard]] static auto ComputeId(nlohmann::json const& desc) noexcept
-> ArtifactIdentifier;
};
namespace std {
template <>
struct hash<ArtifactDescription> {
[[nodiscard]] auto operator()(ArtifactDescription const& a) const {
return std::hash<std::string>{}(a.Id());
}
};
} // namespace std
#endif // INCLUDED_SRC_BUILDTOOL_COMMON_ARTIFACT_DESCRIPTION_HPP
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