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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_TEST_UTILS_HERMETICITY_TEST_STORAGE_CONFIG_HPP
#define INCLUDED_SRC_TEST_UTILS_HERMETICITY_TEST_STORAGE_CONFIG_HPP
#include <cstdlib> //std::exit, std::getenv
#include <filesystem>
#include <memory>
#include <string>
#include <utility> //std::move
#include "gsl/gsl"
#include "src/buildtool/logging/log_level.hpp"
#include "src/buildtool/logging/logger.hpp"
#include "src/buildtool/storage/config.hpp"
#include "src/utils/cpp/expected.hpp"
#include "src/utils/cpp/tmp_dir.hpp"
#include "test/utils/hermeticity/test_hash_function_type.hpp"
class TestStorageConfig final {
public:
/// \brief Create a unique StorageConfig that has the build root in a new
/// empty location. Uses TEST_TMPDIR environment variable to determine path
/// to the location.
/// To be used only for local tests, as it does not know about remote
/// execution config.
[[nodiscard]] static auto Create() noexcept -> TestStorageConfig {
/**
* Test must not assume the existence of a home directory, nor write
* there. Hence we set the storage root to a fixed location under
* TEST_TMPDIR which is set by the test launcher.
*/
char const* const env_tmpdir = std::getenv("TEST_TMPDIR");
if (env_tmpdir == nullptr) {
Logger::Log(LogLevel::Debug, "missing TEST_TMPDIR env variable");
std::exit(EXIT_FAILURE);
}
auto const test_tempdir =
std::filesystem::path{std::string{env_tmpdir}} / ".test_build_root";
auto temp_dir = TmpDir::Create(test_tempdir);
if (temp_dir == nullptr) {
Logger::Log(LogLevel::Error,
"failed to create a test-local cache dir");
std::exit(EXIT_FAILURE);
}
StorageConfig::Builder builder;
auto config = builder.SetBuildRoot(temp_dir->GetPath())
.SetHashType(TestHashType::ReadFromEnvironment())
.Build();
if (not config) {
Logger::Log(LogLevel::Error, config.error());
std::exit(EXIT_FAILURE);
}
Logger::Log(LogLevel::Debug,
"created test-local cache dir {}",
temp_dir->GetPath().string());
return TestStorageConfig{std::move(temp_dir), *std::move(config)};
}
[[nodiscard]] auto Get() const noexcept -> StorageConfig const& {
return storage_config_;
}
private:
gsl::not_null<TmpDir::Ptr> const tmp_dir_;
StorageConfig const storage_config_;
explicit TestStorageConfig(gsl::not_null<TmpDir::Ptr> const& tmp_dir,
StorageConfig config) noexcept
: tmp_dir_{tmp_dir}, storage_config_{std::move(config)} {}
};
#endif // INCLUDED_SRC_TEST_UTILS_HERMETICITY_TEST_STORAGE_CONFIG_HPP
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