mirror of
https://github.com/ClickHouse/ClickHouse.git
synced 2024-11-16 04:32:33 +00:00
104 lines
4.0 KiB
C++
104 lines
4.0 KiB
C++
#include <iostream>
|
|
|
|
#include <boost/program_options.hpp>
|
|
#include <Poco/Logger.h>
|
|
#include <Poco/ConsoleChannel.h>
|
|
#include <Poco/FormattingChannel.h>
|
|
#include <Poco/PatternFormatter.h>
|
|
#include <Poco/AutoPtr.h>
|
|
#include <Poco/Util/XMLConfiguration.h>
|
|
|
|
#include <Common/ZooKeeper/ZooKeeperNodeCache.h>
|
|
#include <Common/Config/ConfigProcessor.h>
|
|
#include <Common/Exception.h>
|
|
|
|
|
|
static void setupLogging(const std::string & log_level)
|
|
{
|
|
Poco::AutoPtr<Poco::ConsoleChannel> channel(new Poco::ConsoleChannel);
|
|
Poco::AutoPtr<Poco::PatternFormatter> formatter(new Poco::PatternFormatter);
|
|
formatter->setProperty("pattern", "%L%Y-%m-%d %H:%M:%S.%i <%p> %s: %t");
|
|
Poco::AutoPtr<Poco::FormattingChannel> formatting_channel(new Poco::FormattingChannel(formatter, channel));
|
|
Poco::Logger::root().setChannel(formatting_channel);
|
|
Poco::Logger::root().setLevel(log_level);
|
|
}
|
|
|
|
static std::string extractFromConfig(
|
|
const std::string & config_path, const std::string & key, bool process_zk_includes, bool try_get = false)
|
|
{
|
|
DB::ConfigProcessor processor(config_path, /* throw_on_bad_incl = */ false, /* log_to_console = */ false);
|
|
bool has_zk_includes;
|
|
DB::XMLDocumentPtr config_xml = processor.processConfig(&has_zk_includes);
|
|
if (has_zk_includes && process_zk_includes)
|
|
{
|
|
DB::ConfigurationPtr bootstrap_configuration(new Poco::Util::XMLConfiguration(config_xml));
|
|
zkutil::ZooKeeperPtr zookeeper = std::make_shared<zkutil::ZooKeeper>(
|
|
*bootstrap_configuration, "zookeeper");
|
|
zkutil::ZooKeeperNodeCache zk_node_cache([&] { return zookeeper; });
|
|
config_xml = processor.processConfig(&has_zk_includes, &zk_node_cache);
|
|
}
|
|
DB::ConfigurationPtr configuration(new Poco::Util::XMLConfiguration(config_xml));
|
|
// do not throw exception if not found
|
|
if (try_get)
|
|
return configuration->getString(key, "");
|
|
return configuration->getString(key);
|
|
}
|
|
|
|
#pragma GCC diagnostic ignored "-Wunused-function"
|
|
#pragma GCC diagnostic ignored "-Wmissing-declarations"
|
|
|
|
int mainEntryClickHouseExtractFromConfig(int argc, char ** argv)
|
|
{
|
|
bool print_stacktrace = false;
|
|
bool process_zk_includes = false;
|
|
bool try_get = false;
|
|
std::string log_level;
|
|
std::string config_path;
|
|
std::string key;
|
|
|
|
namespace po = boost::program_options;
|
|
|
|
po::options_description options_desc("Allowed options");
|
|
options_desc.add_options()
|
|
("help", "produce this help message")
|
|
("stacktrace", po::bool_switch(&print_stacktrace), "print stack traces of exceptions")
|
|
("process-zk-includes", po::bool_switch(&process_zk_includes),
|
|
"if there are from_zk elements in config, connect to ZooKeeper and process them")
|
|
("try", po::bool_switch(&try_get), "Do not warn about missing keys")
|
|
("log-level", po::value<std::string>(&log_level)->default_value("error"), "log level")
|
|
("config-file,c", po::value<std::string>(&config_path)->required(), "path to config file")
|
|
("key,k", po::value<std::string>(&key)->required(), "key to get value for");
|
|
|
|
po::positional_options_description positional_desc;
|
|
positional_desc.add("config-file", 1);
|
|
positional_desc.add("key", 1);
|
|
|
|
try
|
|
{
|
|
po::variables_map options;
|
|
po::store(po::command_line_parser(argc, argv).options(options_desc).positional(positional_desc).run(), options);
|
|
|
|
if (options.count("help"))
|
|
{
|
|
std::cerr << "Preprocess config file and extract value of the given key." << std::endl
|
|
<< std::endl;
|
|
std::cerr << "Usage: clickhouse extract-from-config [options]" << std::endl
|
|
<< std::endl;
|
|
std::cerr << options_desc << std::endl;
|
|
return 0;
|
|
}
|
|
|
|
po::notify(options);
|
|
|
|
setupLogging(log_level);
|
|
std::cout << extractFromConfig(config_path, key, process_zk_includes, try_get) << std::endl;
|
|
}
|
|
catch (...)
|
|
{
|
|
std::cerr << DB::getCurrentExceptionMessage(print_stacktrace, true) << std::endl;
|
|
return DB::getCurrentExceptionCode();
|
|
}
|
|
|
|
return 0;
|
|
}
|