func GetCurrentMajorVersionFromEnv()

in upgradetest.go [85:95]

• 11 lines of code
• 3 McCabe index (conditional complexity)

func GetCurrentMajorVersionFromEnv() (int, error) {
	currentMajorVer := os.Getenv("PREVIOUS_MAJOR_VERSION")
	if currentMajorVer == "" {
		return 0, nil
	}
	previousMajorVer, err := strconv.Atoi(strings.TrimPrefix(currentMajorVer, "v"))
	if err != nil {
		return 0, err
	}
	return previousMajorVer + 1, nil
}