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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/ops_maps/import_to_git_map.hpp"
#include <memory>
#include <optional>
#include "fmt/core.h"
#include "src/buildtool/multithreading/task_system.hpp"
#include "src/other_tools/git_operations/git_ops_types.hpp"
#include "src/other_tools/git_operations/git_repo_remote.hpp"
#include "src/utils/cpp/tmp_dir.hpp"
namespace {
void KeepCommitAndSetTree(
gsl::not_null<CriticalGitOpMap*> const& critical_git_op_map,
std::string const& commit,
GitCASPtr const& just_git_cas,
StorageConfig const& storage_config,
gsl::not_null<TaskSystem*> const& ts,
ImportToGitMap::SetterPtr const& setter,
ImportToGitMap::LoggerPtr const& logger) {
// Keep tag for commit
GitOpKey op_key = {.params =
{
storage_config.GitRoot(), // target_path
commit, // git_hash
"Keep referenced tree alive" // message
},
.op_type = GitOpType::KEEP_TAG};
critical_git_op_map->ConsumeAfterKeysReady(
ts,
{std::move(op_key)},
[commit, just_git_cas, storage_config, setter, logger](
auto const& values) {
GitOpValue op_result = *values[0];
// check flag
if (not op_result.result) {
(*logger)("Keep tag failed",
/*fatal=*/true);
return;
}
auto just_git_repo = GitRepoRemote::Open(just_git_cas);
if (not just_git_repo) {
(*logger)(fmt::format("Could not open Git repository {}",
storage_config.GitRoot().string()),
/*fatal=*/true);
return;
}
// get tree id and return it
auto wrapped_logger = std::make_shared<AsyncMapConsumerLogger>(
[logger, commit](auto const& msg, bool fatal) {
(*logger)(
fmt::format("While getting subtree from commit {}:\n{}",
commit,
msg),
fatal);
});
auto res = just_git_repo->GetSubtreeFromCommit(
commit, ".", wrapped_logger);
if (not res) {
return;
}
(*setter)(std::pair<std::string, GitCASPtr>(*std::move(res),
just_git_cas));
},
[logger, commit, target_path = storage_config.GitRoot()](
auto const& msg, bool fatal) {
(*logger)(fmt::format("While running critical Git op KEEP_TAG for "
"commit {} in target {}:\n{}",
commit,
target_path.string(),
msg),
fatal);
});
}
} // namespace
auto CreateImportToGitMap(
gsl::not_null<CriticalGitOpMap*> const& critical_git_op_map,
std::string const& git_bin,
std::vector<std::string> const& launcher,
gsl::not_null<StorageConfig const*> const& storage_config,
std::size_t jobs) -> ImportToGitMap {
auto import_to_git = [critical_git_op_map,
git_bin,
launcher,
storage_config](auto ts,
auto setter,
auto logger,
auto /*unused*/,
auto const& key) {
// The repository path that imports the content must be separate from
// the content path, to avoid polluting the entries
auto repo_dir = storage_config->CreateTypedTmpDir("import-repo");
if (not repo_dir) {
(*logger)(fmt::format("Failed to create import repository tmp "
"directory for target {}",
key.target_path.string()),
true);
return;
}
// Commit content from target_path via the tmp repository
GitOpKey op_key = {.params =
{
repo_dir->GetPath(), // target_path
"", // git_hash
fmt::format("Content of {} {}",
key.repo_type,
key.content), // message
key.target_path // source_path
},
.op_type = GitOpType::INITIAL_COMMIT};
critical_git_op_map->ConsumeAfterKeysReady(
ts,
{std::move(op_key)},
[repo_dir, // keep repo_dir alive
critical_git_op_map,
git_bin,
launcher,
storage_config,
ts,
setter,
logger](auto const& values) {
GitOpValue op_result = *values[0];
// check flag
if (not op_result.result) {
(*logger)("Initial commit failed",
/*fatal=*/true);
return;
}
// ensure Git cache
// define Git operation to be done
GitOpKey op_key = {
.params =
{
storage_config->GitRoot(), // target_path
"", // git_hash
std::nullopt, // message
std::nullopt, // source_path
true // init_bare
},
.op_type = GitOpType::ENSURE_INIT};
critical_git_op_map->ConsumeAfterKeysReady(
ts,
{std::move(op_key)},
[repo_dir, // keep repo_dir alive
critical_git_op_map,
commit = *op_result.result,
git_bin,
launcher,
storage_config,
ts,
setter,
logger](auto const& values) {
GitOpValue op_result = *values[0];
// check flag
if (not op_result.result) {
(*logger)("Git init failed",
/*fatal=*/true);
return;
}
// fetch all into Git cache
auto just_git_repo =
GitRepoRemote::Open(op_result.git_cas);
if (not just_git_repo) {
(*logger)(
fmt::format("Could not open Git cache "
"repository {}",
storage_config->GitRoot().string()),
/*fatal=*/true);
return;
}
auto const& target_path = repo_dir->GetPath();
auto wrapped_logger =
std::make_shared<AsyncMapConsumerLogger>(
[logger, target_path](auto const& msg,
bool fatal) {
(*logger)(fmt::format("While fetch via tmp "
"repo from {}:\n{}",
target_path.string(),
msg),
fatal);
});
if (not just_git_repo->FetchViaTmpRepo(
*storage_config,
target_path.string(),
std::nullopt,
std::vector<std::string>{} /* inherit_env */,
git_bin,
launcher,
wrapped_logger)) {
return;
}
// setup a wrapped_logger
wrapped_logger =
std::make_shared<AsyncMapConsumerLogger>(
[logger, target_path](auto const& msg,
bool fatal) {
(*logger)(
fmt::format("While doing keep commit "
"and setting Git tree for "
"target {}:\n{}",
target_path.string(),
msg),
fatal);
});
KeepCommitAndSetTree(critical_git_op_map,
commit,
op_result.git_cas, /*just_git_cas*/
*storage_config,
ts,
setter,
wrapped_logger);
},
[logger, target_path = storage_config->GitRoot()](
auto const& msg, bool fatal) {
(*logger)(fmt::format("While running critical Git "
"op ENSURE_INIT bare for "
"target {}:\n{}",
target_path.string(),
msg),
fatal);
});
},
[logger, target_path = key.target_path](auto const& msg,
bool fatal) {
(*logger)(fmt::format("While running critical Git op "
"INITIAL_COMMIT for target {}:\n{}",
target_path.string(),
msg),
fatal);
});
};
return AsyncMapConsumer<CommitInfo, std::pair<std::string, GitCASPtr>>(
import_to_git, jobs);
}
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