ClickHouse/programs/disks/CommandCopy.cpp
Azat Khuzhin 51e8b16916 Fix IO throttling during copying whole directories
v2: pass local context during ALTER TABLE MOVE PARTITION TO VOLUME/DISK as well
Signed-off-by: Azat Khuzhin <a.khuzhin@semrush.com>
2023-08-29 23:13:46 +02:00

71 lines
2.3 KiB
C++

#include "ICommand.h"
#include <Interpreters/Context.h>
#include <Common/TerminalSize.h>
namespace DB
{
namespace ErrorCodes
{
extern const int BAD_ARGUMENTS;
}
class CommandCopy final : public ICommand
{
public:
CommandCopy()
{
command_name = "copy";
command_option_description.emplace(createOptionsDescription("Allowed options", getTerminalWidth()));
description = "Recursively copy data containing at `from_path` to `to_path`\nPath should be in format './' or './path' or 'path'";
usage = "copy [OPTION]... <FROM_PATH> <TO_PATH>";
command_option_description->add_options()
("diskFrom", po::value<String>(), "set name for disk from which we do operations")
("diskTo", po::value<String>(), "set name for disk to which we do operations")
;
}
void processOptions(
Poco::Util::LayeredConfiguration & config,
po::variables_map & options) const override
{
if (options.count("diskFrom"))
config.setString("diskFrom", options["diskFrom"].as<String>());
if (options.count("diskTo"))
config.setString("diskTo", options["diskTo"].as<String>());
}
void execute(
const std::vector<String> & command_arguments,
DB::ContextMutablePtr & global_context,
Poco::Util::LayeredConfiguration & config) override
{
if (command_arguments.size() != 2)
{
printHelpMessage();
throw DB::Exception(DB::ErrorCodes::BAD_ARGUMENTS, "Bad Arguments");
}
String disk_name_from = config.getString("diskFrom", config.getString("disk", "default"));
String disk_name_to = config.getString("diskTo", config.getString("disk", "default"));
const String & path_from = command_arguments[0];
const String & path_to = command_arguments[1];
DiskPtr disk_from = global_context->getDisk(disk_name_from);
DiskPtr disk_to = global_context->getDisk(disk_name_to);
String relative_path_from = validatePathAndGetAsRelative(path_from);
String relative_path_to = validatePathAndGetAsRelative(path_to);
disk_from->copyDirectoryContent(relative_path_from, disk_to, relative_path_to, /* settings= */ {});
}
};
}
std::unique_ptr <DB::ICommand> makeCommandCopy()
{
return std::make_unique<DB::CommandCopy>();
}