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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_EXECUTION_API_REMOTE_CONFIG_HPP
#define INCLUDED_SRC_BUILDTOOL_EXECUTION_API_REMOTE_CONFIG_HPP
#include <cstdint>
#include <map>
#include <optional>
#include <sstream>
#include <stdexcept>
#include <string>
#include <utility>
#include "gsl-lite/gsl-lite.hpp"
#include "src/buildtool/logging/logger.hpp"
#include "src/utils/cpp/type_safe_arithmetic.hpp"
// Port
struct PortTag : type_safe_arithmetic_tag<std::uint16_t> {};
using Port = type_safe_arithmetic<PortTag>;
[[nodiscard]] static auto ParsePort(int const port_num) noexcept
-> std::optional<Port> {
try {
static constexpr int kMaxPortNumber{
std::numeric_limits<uint16_t>::max()};
if (port_num >= 0 and port_num <= kMaxPortNumber) {
return gsl::narrow_cast<Port::value_t>(port_num);
}
} catch (std::out_of_range const& e) {
Logger::Log(LogLevel::Error, "Port raised out_of_range exception.");
}
return std::nullopt;
}
[[nodiscard]] static auto ParsePort(std::string const& port) noexcept
-> std::optional<Port> {
try {
auto port_num = std::stoi(port);
return ParsePort(port_num);
} catch (std::invalid_argument const& e) {
Logger::Log(LogLevel::Error, "Port raised invalid_argument exception.");
}
return std::nullopt;
}
class RemoteExecutionConfig {
public:
struct ServerAddress {
std::string host{};
Port port{};
};
// Obtain global instance
[[nodiscard]] static auto Instance() noexcept -> RemoteExecutionConfig& {
static RemoteExecutionConfig config;
return config;
}
// Set remote execution and cache address, unsets if parsing `address` fails
[[nodiscard]] static auto SetRemoteAddress(
std::string const& address) noexcept -> bool {
auto& inst = Instance();
return static_cast<bool>(inst.remote_address_ = inst.cache_address_ =
ParseAddress(address));
}
// Set specific cache address, unsets if parsing `address` fails
[[nodiscard]] static auto SetCacheAddress(
std::string const& address) noexcept -> bool {
return static_cast<bool>(Instance().cache_address_ =
ParseAddress(address));
}
// Add platform property from string of form "key:val"
[[nodiscard]] static auto AddPlatformProperty(
std::string const& property) noexcept -> bool {
if (auto pair = ParseProperty(property)) {
Instance().platform_properties_[std::move(pair->first)] =
std::move(pair->second);
return true;
}
return false;
}
// Remote execution address, if set
[[nodiscard]] static auto RemoteAddress() noexcept
-> std::optional<ServerAddress> {
return Instance().remote_address_;
}
// Cache address, if set
[[nodiscard]] static auto CacheAddress() noexcept
-> std::optional<ServerAddress> {
return Instance().cache_address_;
}
[[nodiscard]] static auto PlatformProperties() noexcept
-> std::map<std::string, std::string> {
return Instance().platform_properties_;
}
private:
// Server address of remote execution.
std::optional<ServerAddress> remote_address_{};
// Server address of cache endpoint for rebuild.
std::optional<ServerAddress> cache_address_{};
// Platform properties for execution.
std::map<std::string, std::string> platform_properties_{};
[[nodiscard]] static auto ParseAddress(std::string const& address) noexcept
-> std::optional<ServerAddress> {
std::istringstream iss(address);
std::string host;
std::string port;
if (not std::getline(iss, host, ':') or
not std::getline(iss, port, ':')) {
return std::nullopt;
}
auto port_num = ParsePort(port);
if (not host.empty() and port_num) {
return ServerAddress{std::move(host), *port_num};
}
return std::nullopt;
}
[[nodiscard]] static auto ParseProperty(
std::string const& property) noexcept
-> std::optional<std::pair<std::string, std::string>> {
std::istringstream pss(property);
std::string key;
std::string val;
if (not std::getline(pss, key, ':') or
not std::getline(pss, val, ':')) {
return std::nullopt;
}
return std::make_pair(key, val);
}
};
#endif // INCLUDED_SRC_BUILDTOOL_EXECUTION_API_REMOTE_CONFIG_HPP
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