Golang Client.Stat方法代碼示例

func QiniuUpload(threadCount int, uploadConfig *UploadConfig) {
	timeStart := time.Now()

	//make SrcDir the full path
	uploadConfig.SrcDir, _ = filepath.Abs(uploadConfig.SrcDir)

	dirCache := DirCache{}

	pathSep := string(os.PathSeparator)
	//create job id
	jobId := Md5Hex(fmt.Sprintf("%s:%s", uploadConfig.SrcDir, uploadConfig.Bucket))

	//local storage path
	storePath := filepath.Join(".qshell", "qupload", jobId)
	if err := os.MkdirAll(storePath, 0775); err != nil {
		log.Errorf("Failed to mkdir `%s' due to `%s'", storePath, err)
		return
	}

	//cache file
	rescanLocalDir := false
	cacheResultName := filepath.Join(storePath, jobId+".cache")
	cacheTempName := filepath.Join(storePath, jobId+".cache.temp")
	cacheCountName := filepath.Join(storePath, jobId+".count")

	if _, statErr := os.Stat(cacheResultName); statErr == nil {
		//file already exists
		rescanLocalDir = uploadConfig.RescanLocal
	} else {
		rescanLocalDir = true
	}

	var totalFileCount int64
	if rescanLocalDir {
		fmt.Println("Listing local sync dir, this can take a long time, please wait patiently...")
		totalFileCount = dirCache.Cache(uploadConfig.SrcDir, cacheTempName)
		if rErr := os.Remove(cacheResultName); rErr != nil {
			log.Debug("Remove the old cached file error", rErr)
		}
		if rErr := os.Rename(cacheTempName, cacheResultName); rErr != nil {
			fmt.Println("Rename the temp cached file error", rErr)
			return
		}
		//write the total count to local file
		if cFp, cErr := os.Create(cacheCountName); cErr == nil {
			func() {
				defer cFp.Close()
				uploadInfo := UploadInfo{
					TotalFileCount: totalFileCount,
				}
				uploadInfoBytes, mErr := json.Marshal(&uploadInfo)
				if mErr == nil {
					if _, wErr := cFp.Write(uploadInfoBytes); wErr != nil {
						log.Errorf("Write local cached count file error %s", cErr)
					} else {
						cFp.Close()
					}
				}
			}()
		} else {
			log.Errorf("Open local cached count file error %s", cErr)
		}
	} else {
		fmt.Println("Use the last cached local sync dir file list ...")
		//read from local cache
		if rFp, rErr := os.Open(cacheCountName); rErr == nil {
			func() {
				defer rFp.Close()
				uploadInfo := UploadInfo{}
				decoder := json.NewDecoder(rFp)
				if dErr := decoder.Decode(&uploadInfo); dErr == nil {
					totalFileCount = uploadInfo.TotalFileCount
				}
			}()
		} else {
			log.Warnf("Open local cached count file error %s", rErr)
		}
	}

	//leveldb folder
	leveldbFileName := filepath.Join(storePath, jobId+".ldb")
	ldb, err := leveldb.OpenFile(leveldbFileName, nil)
	if err != nil {
		log.Errorf("Open leveldb `%s' failed due to `%s'", leveldbFileName, err)
		return
	}
	defer ldb.Close()
	//sync
	ufp, err := os.Open(cacheResultName)
	if err != nil {
		log.Errorf("Open cache file `%s' failed due to `%s'", cacheResultName, err)
		return
	}
	defer ufp.Close()
	bScanner := bufio.NewScanner(ufp)
	bScanner.Split(bufio.ScanLines)

	var currentFileCount int64 = 0
	var successFileCount int64 = 0
	var failureFileCount int64 = 0
//.........這裏部分代碼省略.........