func()

in oss/checkpoint.go [308:347]

• 28 lines of code
• 10 McCabe index (conditional complexity)

func (cp *uploadCheckpoint) valid() bool {
	// Compare the CP's Magic and the MD5
	contents, err := os.ReadFile(cp.CpFilePath)
	if err != nil {
		return false
	}

	dcp := uploadCheckpoint{}

	if err = json.Unmarshal(contents, &dcp.Info); err != nil {
		return false
	}

	js, _ := json.Marshal(dcp.Info.Data)
	sum := md5.Sum(js)
	md5sum := hex.EncodeToString(sum[:])

	if CheckpointMagic != dcp.Info.Magic ||
		md5sum != dcp.Info.MD5 {
		return false
	}

	// compare
	if !reflect.DeepEqual(cp.Info.Data.ObjectInfo, dcp.Info.Data.ObjectInfo) ||
		!reflect.DeepEqual(cp.Info.Data.FileMeta, dcp.Info.Data.FileMeta) ||
		cp.Info.Data.FilePath != dcp.Info.Data.FilePath ||
		cp.Info.Data.PartSize != dcp.Info.Data.PartSize {
		return false
	}

	// download info
	if len(dcp.Info.Data.UploadInfo.UploadId) == 0 {
		return false
	}

	// update
	cp.Info.Data.UploadInfo = dcp.Info.Data.UploadInfo

	return true
}