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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.
#include "src/other_tools/root_maps/content_git_map.hpp"
#include "src/buildtool/file_system/file_storage.hpp"
#include "src/buildtool/storage/config.hpp"
#include "src/buildtool/storage/storage.hpp"
#include "src/other_tools/just_mr/progress_reporting/progress.hpp"
#include "src/other_tools/just_mr/progress_reporting/statistics.hpp"
#include "src/other_tools/utils/archive_ops.hpp"
namespace {
/// \brief Extracts the archive of given type into the destination directory
/// provided. Returns nullopt on success, or error string on failure.
[[nodiscard]] auto ExtractArchive(std::filesystem::path const& archive,
std::string const& repo_type,
std::filesystem::path const& dst_dir) noexcept
-> std::optional<std::string> {
if (repo_type == "archive") {
return ArchiveOps::ExtractArchive(
ArchiveType::kArchiveTypeTarGz, archive, dst_dir);
}
if (repo_type == "zip") {
return ArchiveOps::ExtractArchive(
ArchiveType::kArchiveTypeZip, archive, dst_dir);
}
return "unrecognized repository type";
}
} // namespace
auto CreateContentGitMap(
gsl::not_null<ContentCASMap*> const& content_cas_map,
gsl::not_null<ImportToGitMap*> const& import_to_git_map,
gsl::not_null<CriticalGitOpMap*> const& critical_git_op_map,
std::size_t jobs) -> ContentGitMap {
auto gitify_content = [content_cas_map,
import_to_git_map,
critical_git_op_map](auto ts,
auto setter,
auto logger,
auto /* unused */,
auto const& key) {
auto archive_tree_id_file = JustMR::Utils::GetArchiveTreeIDFile(
key.repo_type, key.archive.content);
if (FileSystemManager::Exists(archive_tree_id_file)) {
// read archive_tree_id from file tree_id_file
auto archive_tree_id =
FileSystemManager::ReadFile(archive_tree_id_file);
if (not archive_tree_id) {
(*logger)(fmt::format("Failed to read tree id from file {}",
archive_tree_id_file.string()),
/*fatal=*/true);
return;
}
// ensure Git cache
// define Git operation to be done
GitOpKey op_key = {{
StorageConfig::GitRoot(), // target_path
"", // git_hash
"", // branch
std::nullopt, // message
true // init_bare
},
GitOpType::ENSURE_INIT};
critical_git_op_map->ConsumeAfterKeysReady(
ts,
{std::move(op_key)},
[archive_tree_id = *archive_tree_id,
subdir = key.subdir,
setter,
logger](auto const& values) {
GitOpValue op_result = *values[0];
// check flag
if (not op_result.result) {
(*logger)("Git init failed",
/*fatal=*/true);
return;
}
// open fake repo wrap for GitCAS
auto just_git_repo = GitRepoRemote::Open(op_result.git_cas);
if (not just_git_repo) {
(*logger)("Could not open Git cache repository!",
/*fatal=*/true);
return;
}
// setup wrapped logger
auto wrapped_logger =
std::make_shared<AsyncMapConsumerLogger>(
[&logger](auto const& msg, bool fatal) {
(*logger)(
fmt::format("While getting subtree from "
"tree:\n{}",
msg),
fatal);
});
// get subtree id and return workspace root
auto subtree_hash = just_git_repo->GetSubtreeFromTree(
archive_tree_id, subdir, wrapped_logger);
if (not subtree_hash) {
return;
}
// set the workspace root
(*setter)(
std::pair(nlohmann::json::array(
{"git tree",
*subtree_hash,
StorageConfig::GitRoot().string()}),
true));
},
[logger, target_path = StorageConfig::GitRoot()](
auto const& msg, bool fatal) {
(*logger)(fmt::format("While running critical Git "
"op ENSURE_INIT for "
"target {}:\n{}",
target_path.string(),
msg),
fatal);
});
}
else {
// do the fetch and import_to_git
content_cas_map->ConsumeAfterKeysReady(
ts,
{key.archive},
[archive_tree_id_file,
repo_type = key.repo_type,
content_id = key.archive.content,
subdir = key.subdir,
origin = key.archive.origin,
import_to_git_map,
ts,
setter,
logger]([[maybe_unused]] auto const& values) {
// content is in CAS
// extract archive
auto tmp_dir = JustMR::Utils::CreateTypedTmpDir(repo_type);
if (not tmp_dir) {
(*logger)(fmt::format("Failed to create tmp path for "
"{} target {}",
repo_type,
content_id),
/*fatal=*/true);
return;
}
auto const& cas = Storage::Instance().CAS();
// content is in CAS if here, so no need to check nullopt
auto content_cas_path =
cas.BlobPath(ArtifactDigest(content_id, 0, false),
/*is_executable=*/false)
.value();
auto res = ExtractArchive(
content_cas_path, repo_type, tmp_dir->GetPath());
if (res != std::nullopt) {
(*logger)(fmt::format("Failed to extract archive {} "
"from CAS with error: {}",
content_cas_path.string(),
*res),
/*fatal=*/true);
return;
}
// import to git
CommitInfo c_info{
tmp_dir->GetPath(), repo_type, content_id};
import_to_git_map->ConsumeAfterKeysReady(
ts,
{std::move(c_info)},
[tmp_dir, // keep tmp_dir alive
archive_tree_id_file,
subdir,
origin,
setter,
logger](auto const& values) {
// check for errors
if (not values[0]->second) {
(*logger)("Importing to git failed",
/*fatal=*/true);
return;
}
// only tree id is needed
std::string archive_tree_id = values[0]->first;
// write to tree id file
if (not JustMR::Utils::WriteTreeIDFile(
archive_tree_id_file, archive_tree_id)) {
(*logger)(
fmt::format("Failed to write tree id "
"to file {}",
archive_tree_id_file.string()),
/*fatal=*/true);
return;
}
// we look for subtree in Git cache
auto just_git_cas =
GitCAS::Open(StorageConfig::GitRoot());
if (not just_git_cas) {
(*logger)(
"Could not open Git cache object database!",
/*fatal=*/true);
return;
}
// fetch all into Git cache
auto just_git_repo =
GitRepoRemote::Open(just_git_cas);
if (not just_git_repo) {
(*logger)(
"Could not open Git cache repository!",
/*fatal=*/true);
return;
}
// setup wrapped logger
auto wrapped_logger =
std::make_shared<AsyncMapConsumerLogger>(
[&logger](auto const& msg, bool fatal) {
(*logger)(
fmt::format("While getting subtree "
"from tree:\n{}",
msg),
fatal);
});
// get subtree id and return workspace root
auto subtree_hash =
just_git_repo->GetSubtreeFromTree(
archive_tree_id, subdir, wrapped_logger);
if (not subtree_hash) {
return;
}
// set the workspace root
(*setter)(std::pair(
nlohmann::json::array(
{"git tree",
*subtree_hash,
StorageConfig::GitRoot().string()}),
false));
},
[logger, target_path = tmp_dir->GetPath()](
auto const& msg, bool fatal) {
(*logger)(fmt::format("While importing target {} "
"to Git:\n{}",
target_path.string(),
msg),
fatal);
});
},
[logger, content = key.archive.content](auto const& msg,
bool fatal) {
(*logger)(
fmt::format("While ensuring content {} is in CAS:\n{}",
content,
msg),
fatal);
});
}
};
return AsyncMapConsumer<ArchiveRepoInfo, std::pair<nlohmann::json, bool>>(
gitify_content, jobs);
}
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