mirror of
https://github.com/ClickHouse/ClickHouse.git
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206 lines
6.6 KiB
C++
206 lines
6.6 KiB
C++
#include <Common/Exception.h>
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#include <Common/TerminalSize.h>
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#include <Common/re2.h>
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#include <IO/ReadHelpers.h>
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#include <IO/ReadBufferFromFile.h>
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#include <IO/WriteHelpers.h>
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#include <IO/WriteBufferFromHTTP.h>
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#include <IO/WriteBufferFromFile.h>
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#include <IO/copyData.h>
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#include <Disks/IO/createReadBufferFromFileBase.h>
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#include <boost/program_options.hpp>
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#include <filesystem>
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namespace fs = std::filesystem;
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#define EXTRACT_PATH_PATTERN ".*\\/store/(.*)"
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namespace DB
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{
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namespace ErrorCodes
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{
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extern const int BAD_ARGUMENTS;
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}
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/*
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* A tool to collect table data files on local fs as is (into current directory or into path from --output-dir option).
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* If test-mode option is added, files will be put by given url via PUT request.
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*/
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void processFile(const fs::path & file_path, const fs::path & dst_path, bool test_mode, bool link, WriteBuffer & metadata_buf)
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{
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String remote_path;
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RE2::FullMatch(file_path.string(), EXTRACT_PATH_PATTERN, &remote_path);
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bool is_directory = fs::is_directory(file_path);
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writeText(file_path.filename().string(), metadata_buf);
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writeChar('\t', metadata_buf);
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writeBoolText(is_directory, metadata_buf);
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if (!is_directory)
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{
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writeChar('\t', metadata_buf);
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writeIntText(fs::file_size(file_path), metadata_buf);
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}
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writeChar('\n', metadata_buf);
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if (is_directory)
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return;
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auto dst_file_path = fs::path(dst_path) / remote_path;
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if (link)
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{
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fs::create_symlink(file_path, dst_file_path);
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}
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else
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{
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ReadSettings read_settings{};
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read_settings.local_fs_method = LocalFSReadMethod::pread;
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auto src_buf = createReadBufferFromFileBase(file_path, read_settings, fs::file_size(file_path));
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std::shared_ptr<WriteBuffer> dst_buf;
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/// test mode for integration tests.
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if (test_mode)
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dst_buf = std::make_shared<WriteBufferFromHTTP>(HTTPConnectionGroupType::HTTP, Poco::URI(dst_file_path), Poco::Net::HTTPRequest::HTTP_PUT);
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else
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dst_buf = std::make_shared<WriteBufferFromFile>(dst_file_path);
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copyData(*src_buf, *dst_buf);
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dst_buf->next();
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dst_buf->finalize();
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}
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}
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void processTableFiles(const fs::path & data_path, fs::path dst_path, bool test_mode, bool link)
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{
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std::cerr << "Data path: " << data_path << ", destination path: " << dst_path << std::endl;
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String prefix;
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RE2::FullMatch(data_path.string(), EXTRACT_PATH_PATTERN, &prefix);
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std::shared_ptr<WriteBuffer> root_meta;
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if (test_mode)
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{
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dst_path /= "store";
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auto files_root = dst_path / prefix;
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root_meta = std::make_shared<WriteBufferFromHTTP>(HTTPConnectionGroupType::HTTP, Poco::URI(files_root / ".index"), Poco::Net::HTTPRequest::HTTP_PUT);
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}
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else
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{
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dst_path = fs::canonical(dst_path);
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auto files_root = dst_path / prefix;
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fs::create_directories(files_root);
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root_meta = std::make_shared<WriteBufferFromFile>(files_root / ".index");
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}
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fs::directory_iterator dir_end;
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for (fs::directory_iterator dir_it(data_path); dir_it != dir_end; ++dir_it)
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{
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if (dir_it->is_directory())
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{
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processFile(dir_it->path(), dst_path, test_mode, link, *root_meta);
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String directory_prefix;
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RE2::FullMatch(dir_it->path().string(), EXTRACT_PATH_PATTERN, &directory_prefix);
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std::shared_ptr<WriteBuffer> directory_meta;
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if (test_mode)
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{
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directory_meta = std::make_shared<WriteBufferFromHTTP>(HTTPConnectionGroupType::HTTP, Poco::URI(dst_path / directory_prefix / ".index"), Poco::Net::HTTPRequest::HTTP_PUT);
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}
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else
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{
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dst_path = fs::canonical(dst_path);
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fs::create_directories(dst_path / directory_prefix);
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directory_meta = std::make_shared<WriteBufferFromFile>(dst_path / directory_prefix / ".index");
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}
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fs::directory_iterator files_end;
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for (fs::directory_iterator file_it(dir_it->path()); file_it != files_end; ++file_it)
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processFile(file_it->path(), dst_path, test_mode, link, *directory_meta);
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directory_meta->next();
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directory_meta->finalize();
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}
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else
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{
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processFile(dir_it->path(), dst_path, test_mode, link, *root_meta);
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}
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}
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root_meta->next();
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root_meta->finalize();
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}
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}
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int mainEntryClickHouseStaticFilesDiskUploader(int argc, char ** argv)
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try
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{
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using namespace DB;
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namespace po = boost::program_options;
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po::options_description description("Allowed options", getTerminalWidth());
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description.add_options()
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("help,h", "produce help message")
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("metadata-path", po::value<std::string>(), "Metadata path (SELECT data_paths FROM system.tables WHERE name = 'table_name' AND database = 'database_name')")
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("test-mode", "Use test mode, which will put data on given url via PUT")
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("link", "Create symlinks instead of copying")
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("url", po::value<std::string>(), "Web server url for test mode")
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("output-dir", po::value<std::string>(), "Directory to put files in non-test mode");
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po::parsed_options parsed = po::command_line_parser(argc, argv).options(description).run();
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po::variables_map options;
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po::store(parsed, options);
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po::notify(options);
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if (options.empty() || options.count("help"))
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{
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std::cout << description << std::endl;
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exit(0); // NOLINT(concurrency-mt-unsafe)
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}
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String metadata_path;
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if (options.count("metadata-path"))
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metadata_path = options["metadata-path"].as<std::string>();
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else
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throw Exception(ErrorCodes::BAD_ARGUMENTS, "No metadata-path option passed");
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fs::path fs_path = fs::weakly_canonical(metadata_path);
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if (!fs::exists(fs_path))
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{
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std::cerr << fmt::format("Data path ({}) does not exist", fs_path.string());
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return 1;
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}
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String root_path;
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auto test_mode = options.contains("test-mode");
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if (test_mode)
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{
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if (options.count("url"))
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root_path = options["url"].as<std::string>();
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else
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throw Exception(ErrorCodes::BAD_ARGUMENTS, "No url option passed for test mode");
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}
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else
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{
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if (options.count("output-dir"))
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root_path = options["output-dir"].as<std::string>();
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else
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root_path = fs::current_path();
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}
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processTableFiles(fs_path, root_path, test_mode, options.count("link"));
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return 0;
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}
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catch (...)
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{
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std::cerr << DB::getCurrentExceptionMessage(false) << '\n';
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return 1;
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}
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