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99 lines
2.6 KiB
C++
99 lines
2.6 KiB
C++
#include "ICommand.h"
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#include <Interpreters/Context.h>
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#include <Common/TerminalSize.h>
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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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class CommandList final : public ICommand
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{
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public:
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CommandList()
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{
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command_name = "list";
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command_option_description.emplace(createOptionsDescription("Allowed options", getTerminalWidth()));
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description = "List files at path[s]";
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usage = "list [OPTION]... <PATH>...";
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command_option_description->add_options()
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("recursive", "recursively list all directories");
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}
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void processOptions(
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Poco::Util::LayeredConfiguration & config,
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po::variables_map & options) const override
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{
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if (options.count("recursive"))
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config.setBool("recursive", true);
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}
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void execute(
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const std::vector<String> & command_arguments,
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DB::ContextMutablePtr & global_context,
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Poco::Util::LayeredConfiguration & config) override
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{
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if (command_arguments.size() != 1)
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{
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printHelpMessage();
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throw DB::Exception(DB::ErrorCodes::BAD_ARGUMENTS, "Bad Arguments");
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}
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String disk_name = config.getString("disk", "default");
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const String & path = command_arguments[0];
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DiskPtr disk = global_context->getDisk(disk_name);
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String relative_path = validatePathAndGetAsRelative(path);
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bool recursive = config.getBool("recursive", false);
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if (recursive)
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listRecursive(disk, relative_path);
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else
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list(disk, relative_path);
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}
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private:
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static void list(const DiskPtr & disk, const std::string & relative_path)
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{
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std::vector<String> file_names;
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disk->listFiles(relative_path, file_names);
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for (const auto & file_name : file_names)
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std::cout << file_name << '\n';
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}
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static void listRecursive(const DiskPtr & disk, const std::string & relative_path)
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{
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std::vector<String> file_names;
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disk->listFiles(relative_path, file_names);
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std::cout << relative_path << ":\n";
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if (!file_names.empty())
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{
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for (const auto & file_name : file_names)
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std::cout << file_name << '\n';
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std::cout << "\n";
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}
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for (const auto & file_name : file_names)
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{
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auto path = relative_path + "/" + file_name;
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if (disk->isDirectory(path))
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listRecursive(disk, path);
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}
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}
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};
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}
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std::unique_ptr <DB::ICommand> makeCommandList()
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{
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return std::make_unique<DB::CommandList>();
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}
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