func valid()

in upgradetest.go [268:275]

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

func valid(t interface{}) bool {
	if t == nil {
		return false
	}
	tag := t.(repositoryTag)
	v := tag.version
	return semver.IsValid(v) && !strings.Contains(v, "rc")
}