//---------------------------------------------------------- -*- Mode: C++ -*-// $Id: KfsMv.cc 71 2008-07-07 15:49:14Z sriramsrao $//// Created 2007/09/24// Author: Sriram Rao//// Copyright 2008 Quantcast Corp.// Copyright 2007-2008 Kosmix Corp.//// This file is part of Kosmos File System (KFS).//// 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.//// \brief Tool that renames a file/directory from a KFS path to another// KFS path.  This does the analogous of "mv".////----------------------------------------------------------------------------#include <iostream>    #include <fstream>#include <cerrno>extern "C" {#include <sys/types.h>#include <sys/stat.h>#include <unistd.h>#include <string.h>#include <stdlib.h>#include <dirent.h>}#include "libkfsClient/KfsClient.h"#include "tools/KfsShell.h"using std::cout;using std::endl;using std::ifstream;using namespace KFS;using namespace KFS::tools;intKFS::tools::handleMv(const vector<string> &args){    int res;    if ((args.size() < 2) || (args[0] == "--help") || (args[0] == "") || (args[1] == "")) {        cout << "Usage: mv <source path> <dst path>" << endl;        return 0;    }    KfsClientPtr kfsClient = getKfsClientFactory()->GetClient();    if (!kfsClient->Exists(args[0].c_str())) {	cout << "Source path: " << args[0] << " is non-existent!" << endl;        return -ENOENT;    }    string target = args[1].c_str();    if (kfsClient->IsFile(args[0].c_str()) &&        kfsClient->IsDirectory(args[1].c_str())) {        string parent, filename;        GetPathComponents(args[0], parent, filename);        target += "/";        target += filename;    }        if ((res = kfsClient->Rename(args[0].c_str(), target.c_str())) < 0) {        cout << "Rename failed: " << ErrorCodeToStr(res) << endl;        return res;    }    return 0;}