cobrax 使用反射获取 flag 配置， 支持指针字段

go get -u github.com/go-jarvis/cobrautils

func (f *FlagSet) Uint64VarP(p *uint64, name, shorthand string, value uint64, usage string) {
 f.VarP(newUint64Value(value, p), name, shorthand, usage)
}

type student struct {
    Name    string `flag:"name" usage:"student name" persistent:"true"`
    Age     int64  `flag:"age" usage:"student age" shorthand:"a"`

    NamePtr    *string `flag:"nameptr" usage:"student name" persistent:"true"`
    AgePtr     *int64  `flag:"ageptr" usage:"student age" shorthand:"a"`
}

stu := student{
    Name:   "zhangsanfeng",
    Age:    20100
}

// 绑定
cobrautils.BindFlags(rootCmd, &stu)
_ = rootCmd.Execute()

// 打印结果
fmt.Printf("%+v", stu)

package main

import (
    "fmt"

    "github.com/go-jarvis/cobrautils"
    "github.com/spf13/cobra"
)

type student struct {
    Name    string `flag:"name" usage:"student name" persistent:"true"`
    Age     int64  `flag:"age" usage:"student age" shorthand:"a"`
}

var rootCmd = &cobra.Command{
    Use: "root",
    Run: func(cmd *cobra.Command, args []string) {
        _ = cmd.Help()
    },
}

func main() {
    stu := student{
        Name:   "zhangsanfeng",
        Age:    20100
    }

    cobrautils.BindFlags(rootCmd, &stu)
    _ = rootCmd.Execute()

    fmt.Printf("%+v", stu)
}

go run . --name wenzhaolun
Usage:
    root [flags]
Flags:
    -a, --age int            student age (default 20100)
    -h, --help               help for root
        --name string        student name (default "zhangsanfeng")

{Name:wenzhaolun Age:20100}