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// Copyright 2023 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.
#include "src/buildtool/storage/fs_utils.hpp"
#include <tuple> //std::ignore
#include <unordered_map>
#include <utility>
#include "nlohmann/json.hpp"
#include "src/buildtool/file_system/file_system_manager.hpp"
#include "src/buildtool/logging/log_level.hpp"
#include "src/buildtool/logging/logger.hpp"
#include "src/utils/cpp/path.hpp"
namespace StorageUtils {
auto GetGitRoot(StorageConfig const& storage_config,
LocalPathsPtr const& just_mr_paths,
std::string const& repo_url) noexcept -> std::filesystem::path {
if (just_mr_paths->git_checkout_locations.contains(repo_url)) {
if (just_mr_paths->git_checkout_locations[repo_url].is_string()) {
return std::filesystem::absolute(ToNormalPath(std::filesystem::path{
just_mr_paths->git_checkout_locations[repo_url]
.get<std::string>()}));
}
Logger::Log(
LogLevel::Warning,
"Retrieving Git checkout location: key {} has non-string value {}",
nlohmann::json(repo_url).dump(),
just_mr_paths->git_checkout_locations[repo_url].dump());
}
auto repo_url_as_path = std::filesystem::absolute(
ToNormalPath(std::filesystem::path(repo_url)));
if (not repo_url_as_path.empty() and
FileSystemManager::IsAbsolutePath(repo_url_as_path) and
FileSystemManager::IsDirectory(repo_url_as_path)) {
return repo_url_as_path;
}
return storage_config.GitRoot();
}
auto GetCommitTreeIDFile(StorageConfig const& storage_config,
std::string const& commit,
std::size_t generation) noexcept
-> std::filesystem::path {
return storage_config.RepositoryGenerationRoot(generation) /
"commit-tree-map" / commit;
}
auto GetArchiveTreeIDFile(StorageConfig const& storage_config,
std::string const& repo_type,
std::string const& content,
std::size_t generation) noexcept
-> std::filesystem::path {
return storage_config.RepositoryGenerationRoot(generation) / "tree-map" /
repo_type / content;
}
auto GetForeignFileTreeIDFile(StorageConfig const& storage_config,
std::string const& content,
std::string const& name,
bool executable,
std::size_t generation) noexcept
-> std::filesystem::path {
return GetDistdirTreeIDFile(
storage_config,
storage_config.hash_function
.HashBlobData(
nlohmann::json(std::unordered_map<std::string,
std::pair<std::string, bool>>{
{name, {content, executable}}})
.dump())
.HexString(),
generation);
}
auto GetDistdirTreeIDFile(StorageConfig const& storage_config,
std::string const& content,
std::size_t generation) noexcept
-> std::filesystem::path {
return storage_config.RepositoryGenerationRoot(generation) /
"distfiles-tree-map" / content;
}
auto GetResolvedTreeIDFile(StorageConfig const& storage_config,
std::string const& tree_hash,
PragmaSpecial const& pragma_special,
std::size_t generation) noexcept
-> std::filesystem::path {
return storage_config.RepositoryGenerationRoot(generation) /
"special-tree-map" / kPragmaSpecialInverseMap.at(pragma_special) /
tree_hash;
}
auto WriteTreeIDFile(std::filesystem::path const& tree_id_file,
std::string const& tree_id) noexcept -> bool {
// needs to be done safely, so use the rename trick
auto tmp_dir = TmpDir::Create(tree_id_file.parent_path());
if (not tmp_dir) {
Logger::Log(LogLevel::Error,
"could not create tmp dir for writing tree id file {}",
tree_id_file.string());
return false;
}
std::filesystem::path tmp_file{tmp_dir->GetPath() / "tmp_file"};
if (not FileSystemManager::WriteFile(tree_id, tmp_file)) {
Logger::Log(LogLevel::Error, "could not create tmp tree id file");
return false;
}
return FileSystemManager::Rename(tmp_file.string(), tree_id_file);
}
auto AddToCAS(Storage const& storage, std::string const& data) noexcept
-> std::optional<std::filesystem::path> {
// get file CAS instance
auto const& cas = storage.CAS();
// write to cas
auto digest = cas.StoreBlob(data);
if (digest) {
return cas.BlobPath(*digest, /*is_executable=*/false);
}
return std::nullopt;
}
void AddDistfileToCAS(Storage const& storage,
std::filesystem::path const& distfile,
LocalPathsPtr const& just_mr_paths) noexcept {
auto const& cas = storage.CAS();
for (auto const& dirpath : just_mr_paths->distdirs) {
auto candidate = dirpath / distfile;
if (FileSystemManager::Exists(candidate)) {
// try to add to CAS
std::ignore = cas.StoreBlob(candidate, /*is_executable=*/false);
}
}
}
} // namespace StorageUtils
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