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// Copyright 2023 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/just_mr/launch.hpp"
#include <cerrno> // for errno
#include <cstring> // for strerror()
#include <filesystem>
#include <utility>
#include "nlohmann/json.hpp"
#include "src/buildtool/build_engine/expression/configuration.hpp"
#include "src/buildtool/build_engine/expression/expression.hpp"
#include "src/buildtool/logging/log_level.hpp"
#include "src/buildtool/logging/logger.hpp"
#include "src/buildtool/multithreading/task_system.hpp"
#include "src/buildtool/storage/config.hpp"
#include "src/buildtool/storage/garbage_collector.hpp"
#include "src/buildtool/storage/repository_garbage_collector.hpp"
#include "src/other_tools/just_mr/exit_codes.hpp"
#include "src/other_tools/just_mr/setup.hpp"
#include "src/other_tools/just_mr/setup_utils.hpp"
#include "src/utils/cpp/file_locking.hpp"
auto CallJust(std::optional<std::filesystem::path> const& config_file,
MultiRepoCommonArguments const& common_args,
MultiRepoSetupArguments const& setup_args,
MultiRepoJustSubCmdsArguments const& just_cmd_args,
MultiRepoLogArguments const& log_args,
MultiRepoRemoteAuthArguments const& auth_args,
RetryArguments const& retry_args,
ForwardOnlyArguments const& launch_fwd,
StorageConfig const& storage_config,
Storage const& storage,
bool forward_build_root,
std::string multi_repo_tool_name) -> int {
// check if subcmd_name can be taken from additional args
auto additional_args_offset = 0U;
auto subcommand = just_cmd_args.subcmd_name;
if (not subcommand and not just_cmd_args.additional_just_args.empty()) {
subcommand = just_cmd_args.additional_just_args[0];
additional_args_offset++;
}
bool use_config{false};
bool use_build_root{false};
bool use_launcher{false};
bool supports_defines{false};
bool supports_remote{false};
bool supports_remote_properties{false};
bool supports_serve{false};
bool supports_dispatch{false};
std::optional<std::filesystem::path> mr_config_path{std::nullopt};
std::optional<LockFile> lock{};
if (subcommand and kKnownJustSubcommands.contains(*subcommand)) {
// Read the config file if needed
if (kKnownJustSubcommands.at(*subcommand).config) {
auto repo_lock =
RepositoryGarbageCollector::SharedLock(storage_config);
if (not repo_lock) {
return kExitGenericFailure;
}
lock = GarbageCollector::SharedLock(storage_config);
if (not lock) {
return kExitGenericFailure;
}
auto config = JustMR::Utils::ReadConfiguration(
config_file, common_args.absent_repository_file);
use_config = true;
mr_config_path = MultiRepoSetup(config,
common_args,
setup_args,
just_cmd_args,
auth_args,
retry_args,
storage_config,
storage,
/*interactive=*/false,
std::move(multi_repo_tool_name));
if (not mr_config_path) {
Logger::Log(LogLevel::Error,
"Failed to setup config for calling \"{} {}\"",
common_args.just_path
? common_args.just_path->string()
: kDefaultJustPath,
*subcommand);
return kExitSetupError;
}
}
use_build_root = kKnownJustSubcommands.at(*subcommand).build_root;
use_launcher = kKnownJustSubcommands.at(*subcommand).launch;
supports_defines = kKnownJustSubcommands.at(*subcommand).defines;
supports_remote = kKnownJustSubcommands.at(*subcommand).remote;
supports_remote_properties =
kKnownJustSubcommands.at(*subcommand).remote_props;
supports_serve = kKnownJustSubcommands.at(*subcommand).serve;
supports_dispatch = kKnownJustSubcommands.at(*subcommand).dispatch;
}
// build just command
std::vector<std::string> cmd = {common_args.just_path->string()};
if (subcommand) {
cmd.emplace_back(*subcommand);
}
if (use_config) {
cmd.emplace_back("-C");
cmd.emplace_back(mr_config_path->string());
}
if (use_build_root and forward_build_root) {
cmd.emplace_back("--local-build-root");
cmd.emplace_back(*common_args.just_mr_paths->root);
}
if (use_launcher and common_args.local_launcher and
(common_args.local_launcher != kDefaultLauncher)) {
cmd.emplace_back("--local-launcher");
cmd.emplace_back(nlohmann::json(*common_args.local_launcher).dump());
}
// forward logging arguments
if (not log_args.log_files.empty()) {
cmd.emplace_back("--log-append");
for (auto const& log_file : log_args.log_files) {
cmd.emplace_back("-f");
cmd.emplace_back(log_file.string());
}
}
if (log_args.log_limit and *log_args.log_limit != kDefaultLogLevel) {
cmd.emplace_back("--log-limit");
cmd.emplace_back(
std::to_string(static_cast<std::underlying_type_t<LogLevel>>(
*log_args.log_limit)));
}
if (log_args.restrict_stderr_log_limit) {
cmd.emplace_back("--restrict-stderr-log-limit");
cmd.emplace_back(
std::to_string(static_cast<std::underlying_type_t<LogLevel>>(
*log_args.restrict_stderr_log_limit)));
}
if (log_args.plain_log) {
cmd.emplace_back("--plain-log");
}
if (supports_defines) {
if (just_cmd_args.config) {
cmd.emplace_back("-c");
cmd.emplace_back(just_cmd_args.config->string());
}
auto overlay_config = Configuration();
for (auto const& s : common_args.defines) {
try {
auto map = Expression::FromJson(nlohmann::json::parse(s));
if (not map->IsMap()) {
Logger::Log(LogLevel::Error,
"Defines entry {} does not contain a map.",
nlohmann::json(s).dump());
std::exit(kExitClargsError);
}
overlay_config = overlay_config.Update(map);
} catch (std::exception const& e) {
Logger::Log(LogLevel::Error,
"Parsing defines entry {} failed with error:\n{}",
nlohmann::json(s).dump(),
e.what());
std::exit(kExitClargsError);
}
}
if (not overlay_config.Expr()->Map().empty()) {
cmd.emplace_back("-D");
cmd.emplace_back(overlay_config.ToString());
}
}
// forward remote execution and mutual TLS arguments
if (supports_remote) {
if (common_args.compatible) {
cmd.emplace_back("--compatible");
}
if (common_args.remote_execution_address) {
cmd.emplace_back("-r");
cmd.emplace_back(*common_args.remote_execution_address);
}
if (auth_args.tls_ca_cert) {
cmd.emplace_back("--tls-ca-cert");
cmd.emplace_back(auth_args.tls_ca_cert->string());
}
if (auth_args.tls_client_cert) {
cmd.emplace_back("--tls-client-cert");
cmd.emplace_back(auth_args.tls_client_cert->string());
}
if (auth_args.tls_client_key) {
cmd.emplace_back("--tls-client-key");
cmd.emplace_back(auth_args.tls_client_key->string());
}
if (retry_args.max_attempts) {
cmd.emplace_back("--max-attempts");
cmd.emplace_back(std::to_string(*retry_args.max_attempts));
}
if (retry_args.initial_backoff_seconds) {
cmd.emplace_back("--initial-backoff-seconds");
cmd.emplace_back(
std::to_string(*retry_args.initial_backoff_seconds));
}
if (retry_args.max_backoff_seconds) {
cmd.emplace_back("--max-backoff-seconds");
cmd.emplace_back(std::to_string(*retry_args.max_backoff_seconds));
}
}
if (supports_dispatch and just_cmd_args.endpoint_configuration) {
cmd.emplace_back("--endpoint-configuration");
cmd.emplace_back(*just_cmd_args.endpoint_configuration);
}
if (supports_serve and common_args.remote_serve_address) {
cmd.emplace_back("-R");
cmd.emplace_back(*common_args.remote_serve_address);
}
// forward-only arguments, still to come before the just-arguments
if (supports_remote_properties) {
for (auto const& prop : launch_fwd.remote_execution_properties) {
cmd.emplace_back("--remote-execution-property");
cmd.emplace_back(prop);
}
}
// add args read from just-mrrc
if (subcommand and just_cmd_args.just_args.contains(*subcommand)) {
for (auto const& subcmd_arg : just_cmd_args.just_args.at(*subcommand)) {
cmd.emplace_back(subcmd_arg);
}
}
// add (remaining) args given by user as clargs
for (auto it = just_cmd_args.additional_just_args.begin() +
additional_args_offset;
it != just_cmd_args.additional_just_args.end();
++it) {
cmd.emplace_back(*it);
}
Logger::Log(
LogLevel::Info, "Setup finished, exec {}", nlohmann::json(cmd).dump());
// create argv
std::vector<char*> argv{};
std::transform(std::begin(cmd),
std::end(cmd),
std::back_inserter(argv),
[](auto& str) { return str.data(); });
argv.push_back(nullptr);
// run execvp; will only return if failure
[[maybe_unused]] auto res =
execvp(argv[0], static_cast<char* const*>(argv.data()));
// execvp returns only if command errored out
Logger::Log(LogLevel::Error, "execvp failed with:\n{}", strerror(errno));
return kExitExecError;
}
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