Cobra 更改帮助模板中的用法行

Question

Usage如果在 Go 中的 cobra 命令上调用帮助函数，我希望能够设置该行以指定要传递的参数 NEEDS。这是常规帮助标志输出的内容：Cancel the order specified by the order id by submitting a cancel order.Optionally, an account ID may be supplied as well for extra measure.Usage:  gbutil orders cancel [flags]Flags:  -a, --account_id string   the account id that the order belongs to  -h, --help                help for cancelGlobal Flags:      --config string   config file (default is $HOME/.gbutil.yaml)我想：Cancel the order specified by the order id by submitting a cancel order.Optionally, an account ID may be supplied as well for extra measure.Usage:  gbutil orders cancel <order_id> [flags]Flags:  -a, --account_id string   the account id that the order belongs to  -h, --help                help for cancelGlobal Flags:      --config string   config file (default is $HOME/.gbutil.yaml)我试过SetUsageTemplate在init()函数中使用，但它删除了部分标志：orderscancelCmd.SetUsageTemplate(strings.Replace(orderscancelCmd.UsageString(), "gbutil orders cancel [flags]", "gbutil orders cancel <order_id> [flags]", 1))这导致：Cancel the order specified by the order id by submitting a cancel order.Optionally, an account ID may be supplied as well for extra measure.Usage:  gbutil orders cancel <order_id> [flags]Flags:  -a, --account_id string   the account id that the order belongs to我在哪里丢失了-h标志和有关的附加信息Global Flags。如果他们不通过以下方式提供 arg，我可以让它工作：        if err := cobra.ExactArgs(1)(cmd, args); err != nil {            fmt.Println(strings.Replace(cmd.UsageString(), "gbutil orders cancel [flags]", "gbutil orders cancel <order_id> [flags]", 1))            return        }但随后-h标志仍然输出错误的用法行。有没有办法做到这一点？提前致谢！

Answer 1

更改用法名称的外观。您可以将其传递给cobra.Command.Use参数。所以对你来说它可能看起来像这样：

var cmdCancel = &cobra.Command{

    Use:   "cancel <order_id>",

    Args: cobra.ExactArgs(1), // make sure that only one arg can be passed

    // Your logic here

}