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#ifndef INCLUDED_SRC_BUILDTOOL_EXECUTION_API_LOCAL_LOCAL_API_HPP
#define INCLUDED_SRC_BUILDTOOL_EXECUTION_API_LOCAL_LOCAL_API_HPP
#include <map>
#include <memory>
#include <string>
#include <vector>
#include "gsl-lite/gsl-lite.hpp"
#include "src/buildtool/compatibility/native_support.hpp"
#include "src/buildtool/execution_api/bazel_msg/bazel_blob.hpp"
#include "src/buildtool/execution_api/common/execution_api.hpp"
#include "src/buildtool/execution_api/common/local_tree_map.hpp"
#include "src/buildtool/execution_api/local/local_action.hpp"
#include "src/buildtool/execution_api/local/local_storage.hpp"
/// \brief API for local execution.
class LocalApi final : public IExecutionApi {
public:
auto CreateAction(
ArtifactDigest const& root_digest,
std::vector<std::string> const& command,
std::vector<std::string> const& output_files,
std::vector<std::string> const& output_dirs,
std::map<std::string, std::string> const& env_vars,
std::map<std::string, std::string> const& properties) noexcept
-> IExecutionAction::Ptr final {
return IExecutionAction::Ptr{new LocalAction{storage_,
tree_map_,
root_digest,
command,
output_files,
output_dirs,
env_vars,
properties}};
}
// NOLINTNEXTLINE(misc-no-recursion)
[[nodiscard]] auto RetrieveToPaths(
std::vector<Artifact::ObjectInfo> const& artifacts_info,
std::vector<std::filesystem::path> const& output_paths) noexcept
-> bool final {
if (artifacts_info.size() != output_paths.size()) {
Logger::Log(LogLevel::Error,
"different number of digests and output paths.");
return false;
}
for (std::size_t i{}; i < artifacts_info.size(); ++i) {
auto const& info = artifacts_info[i];
if (IsTreeObject(info.type)) {
// read object infos from sub tree and call retrieve recursively
auto const infos =
storage_->ReadTreeInfos(info.digest, output_paths[i]);
if (not infos or
not RetrieveToPaths(infos->second, infos->first)) {
return false;
}
}
else {
auto const blob_path = storage_->BlobPath(
info.digest, IsExecutableObject(info.type));
if (not blob_path or
not FileSystemManager::CreateDirectory(
output_paths[i].parent_path()) or
not FileSystemManager::CopyFileAs</*kSetEpochTime=*/true,
/*kSetWritable=*/true>(
*blob_path, output_paths[i], info.type)) {
return false;
}
}
}
return true;
}
[[nodiscard]] auto RetrieveToFds(
std::vector<Artifact::ObjectInfo> const& artifacts_info,
std::vector<int> const& fds,
bool raw_tree) noexcept -> bool final {
if (artifacts_info.size() != fds.size()) {
Logger::Log(LogLevel::Error,
"different number of digests and file descriptors.");
return false;
}
for (std::size_t i{}; i < artifacts_info.size(); ++i) {
auto fd = fds[i];
auto const& info = artifacts_info[i];
if (gsl::owner<FILE*> out = fdopen(fd, "wb")) { // NOLINT
auto const success =
storage_->DumpToStream(info, out, raw_tree);
std::fclose(out);
if (not success) {
Logger::Log(LogLevel::Error,
"dumping {} {} to file descriptor {} failed.",
IsTreeObject(info.type) ? "tree" : "blob",
info.ToString(),
fd);
return false;
}
}
else {
Logger::Log(LogLevel::Error,
"dumping to file descriptor {} failed.",
fd);
return false;
}
}
return true;
}
[[nodiscard]] auto Upload(BlobContainer const& blobs,
bool /*skip_find_missing*/) noexcept
-> bool final {
for (auto const& blob : blobs) {
auto const is_tree = NativeSupport::IsTree(blob.digest.hash());
auto cas_digest = is_tree ? storage_->StoreTree(blob.data)
: storage_->StoreBlob(blob.data);
if (not cas_digest or not std::equal_to<bazel_re::Digest>{}(
*cas_digest, blob.digest)) {
return false;
}
}
return true;
}
[[nodiscard]] auto UploadTree(
std::vector<DependencyGraph::NamedArtifactNodePtr> const&
artifacts) noexcept -> std::optional<ArtifactDigest> final {
BlobContainer blobs{};
auto tree = tree_map_->CreateTree();
auto digest = BazelMsgFactory::CreateDirectoryDigestFromTree(
artifacts,
[&blobs](BazelBlob&& blob) { blobs.Emplace(std::move(blob)); },
[&tree](auto path, auto info) { return tree.AddInfo(path, info); });
if (not digest) {
Logger::Log(LogLevel::Debug, "failed to create digest for tree.");
return std::nullopt;
}
if (not Upload(blobs, /*skip_find_missing=*/false)) {
Logger::Log(LogLevel::Debug, "failed to upload blobs for tree.");
return std::nullopt;
}
if (tree_map_->AddTree(*digest, std::move(tree))) {
return ArtifactDigest{*digest};
}
return std::nullopt;
}
[[nodiscard]] auto IsAvailable(ArtifactDigest const& digest) const noexcept
-> bool final {
return static_cast<bool>(
NativeSupport::IsTree(static_cast<bazel_re::Digest>(digest).hash())
? storage_->TreePath(digest)
: storage_->BlobPath(digest, false));
}
[[nodiscard]] auto IsAvailable(std::vector<ArtifactDigest> const& digests)
const noexcept -> std::vector<ArtifactDigest> final {
std::vector<ArtifactDigest> result;
for (auto const& digest : digests) {
auto const& path = NativeSupport::IsTree(
static_cast<bazel_re::Digest>(digest).hash())
? storage_->TreePath(digest)
: storage_->BlobPath(digest, false);
if (not path) {
result.push_back(digest);
}
}
return result;
}
private:
std::shared_ptr<LocalTreeMap> tree_map_{std::make_shared<LocalTreeMap>()};
std::shared_ptr<LocalStorage> storage_{
std::make_shared<LocalStorage>(tree_map_)};
};
#endif // INCLUDED_SRC_BUILDTOOL_EXECUTION_API_LOCAL_LOCAL_API_HPP
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