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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 "directory_tree.hpp"
#include <utility>
#include "src/buildtool/common/artifact_digest.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/gsl.hpp"
auto DirectoryTree::AddArtifact(std::filesystem::path const& path,
Artifact const* artifact) noexcept -> bool {
auto const norm_path = path.lexically_normal();
if (norm_path.empty() or not FileSystemManager::IsRelativePath(norm_path)) {
return false;
}
auto it = norm_path.begin();
try {
return AddArtifact(&it, norm_path.end(), artifact);
} catch (...) {
return false;
}
}
auto DirectoryTree::FromNamedArtifacts(
std::vector<DependencyGraph::NamedArtifactNodePtr> const&
artifacts) noexcept -> std::optional<DirectoryTreePtr> {
auto dir_tree = std::make_unique<DirectoryTree>();
for (auto const& [local_path, node] : artifacts) {
auto const* artifact = &node->Content();
if (not dir_tree->AddArtifact(local_path, artifact)) {
Logger::Log(LogLevel::Error,
"failed to add artifact {} ({}) to directory tree",
local_path,
artifact->Digest().value_or(ArtifactDigest{}).hash());
return std::nullopt;
}
}
return dir_tree;
}
auto DirectoryTree::AddArtifact(std::filesystem::path::iterator* begin,
std::filesystem::path::iterator const& end,
Artifact const* artifact) -> bool {
ExpectsAudit(std::distance(*begin, end) > 0);
auto segment = *((*begin)++);
if (segment == "." or segment == "..") { // fail on "." and ".."
return false;
}
if (*begin == end) {
return nodes_.emplace(segment, artifact).second;
}
auto const [it, success] =
nodes_.emplace(segment, std::make_unique<DirectoryTree>());
return (success or std::holds_alternative<DirectoryTreePtr>(it->second)) and
std::get<DirectoryTreePtr>(it->second)
->AddArtifact(begin, end, artifact);
}
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