Function isOSTypeSupported

cmd/docker/docker.go:746–751

(f *pflag.Flag, osType string)

}

func isOSTypeSupported(f *pflag.Flag, osType string) bool {
	if v := getFlagAnnotation(f, "ostype"); v != "" && osType != "" {
		return osType == v
	}
	return true
}

// hasTags return true if any of the command's parents has tags
func hasTags(cmd *cobra.Command) bool {