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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/buildtool/build_engine/base_maps/directory_map.hpp"
#include <functional>
#include <string>
#include "fmt/core.h"
#include "src/buildtool/multithreading/async_map_consumer.hpp"
auto BuildMaps::Base::CreateDirectoryEntriesMap(
gsl::not_null<const RepositoryConfig*> const& repo_config,
std::size_t jobs) -> DirectoryEntriesMap {
auto directory_reader = [repo_config](auto /* unused*/,
auto setter,
auto logger,
auto /* unused */,
auto const& key) {
auto const* ws_root = repo_config->WorkspaceRoot(key.repository);
if (ws_root == nullptr) {
(*logger)(
fmt::format("Cannot determine workspace root for repository {}",
key.repository),
/*fatal=*/true);
return;
}
if (ws_root->IsAbsent()) {
std::string missing_root = "[unknown]";
auto absent_tree = ws_root->GetAbsentTreeId();
if (absent_tree) {
missing_root = *absent_tree;
}
(*logger)(fmt::format("Would have to read directory entries of "
"absent root {}",
missing_root),
/*fatal=*/true);
return;
}
auto dir_path = key.module.empty() ? "." : key.module;
if (not ws_root->IsDirectory(dir_path)) {
// Missing directory is fine (source tree might be incomplete),
// contains no entries.
(*setter)(FileRoot::DirectoryEntries{
FileRoot::DirectoryEntries::pairs_t{}});
return;
}
if (auto read_dir = ws_root->ReadDirectory(dir_path)) {
(*setter)(*std::move(read_dir));
return;
}
(*logger)(fmt::format("Failed to read directory {} from repository {}",
dir_path,
key.repository),
/*fatal=*/true);
};
return AsyncMapConsumer<BuildMaps::Base::ModuleName,
FileRoot::DirectoryEntries>{directory_reader, jobs};
}
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