简介

hflagflaghflag
-aux-a -u -x-p123456-p 123456net.IPtime.Timetime.Duration[]int[]string

用法

hflagapiflagpythonargparseflagflag

新接口

package main

import (
    "fmt"
    "github.com/hpifu/go-kit/hflag"
)

func main() {
    hflag.AddFlag("int", "int flag", hflag.Required(), hflag.Shorthand("i"), hflag.Type("int"), hflag.DefaultValue("123"))
    hflag.AddFlag("str", "str flag", hflag.Shorthand("s"), hflag.Required())
    hflag.AddFlag("int-slice", "int slice flag", hflag.Type("[]int"), hflag.DefaultValue("1,2,3"))
    hflag.AddFlag("ip", "ip flag", hflag.Type("ip"))
    hflag.AddFlag("time", "time flag", hflag.Type("time"), hflag.DefaultValue("2019-11-27"))
    hflag.AddPosFlag("pos", "pos flag")
    if err := hflag.Parse(); err != nil {
        panic(err)
    }

    fmt.Println("int =>", hflag.GetInt("i"))
    fmt.Println("str =>", hflag.GetString("s"))
    fmt.Println("int-slice =>", hflag.GetIntSlice("int-slice"))
    fmt.Println("ip =>", hflag.GetIP("ip"))
    fmt.Println("time =>", hflag.GetTime("time"))
    fmt.Println("pos =>", hflag.GetString("pos"))
}
go run hflag1.go -str abc -ip 192.168.0.1 --int-slice 4,5,6 posflag
int => 123
str => abc
int-slice => [4 5 6]
ip => 192.168.0.1
time => 2019-11-27 00:00:00 +0000 UTC
pos => posflag

flag 接口

package main

import (
    "fmt"
    "github.com/hpifu/go-kit/hflag"
    "time"
)

func main() {
    i := hflag.Int("int", 123, "int flag")
    s := hflag.String("str", "", "str flag")
    vi := hflag.IntSlice("int-slice", []int{1, 2, 3}, "int slice flag")
    ip := hflag.IP("ip", nil, "ip flag")
    t := hflag.Time("time", time.Now(), "time flag")
    if err := hflag.Parse(); err != nil {
        fmt.Println(hflag.Usage())
        panic(err)
    }

    fmt.Println("int =>", *i)
    fmt.Println("str =>", *s)
    fmt.Println("int-slice =>", *vi)
    fmt.Println("ip =>", *ip)
    fmt.Println("time =>", *t)
}
go run hflag2.go -str abc -ip 192.168.0.1 --int-slice 4,5,6 posflag
int => 123
str => abc
int-slice => [4 5 6]
ip => 192.168.0.1
time => 2019-11-27 00:00:00 +0000 UTC
pos => posflag

帮助信息

-h/--help
usage: hflag1 [pos] [-h,help bool] [-i,int int=123] [-int-slice []int=1,2,3] [-ip ip] <-s,str string> [-time time=2019-11-27]

positional options:
      pos          [string]           pos flag

options:
  -h, --help       [bool]             show usage
  -i, --int        [int=123]          int flag
    , --int-slice  [[]int=1,2,3]      int slice flag
    , --ip         [ip]               ip flag
  -s, --str        [string]           str flag
    , --time       [time=2019-11-27]  time flag

命令行语法

------==-key=val-key valtrue-b truetrue-aux-a -u -x-p123456-p 123456

支持的数据类型名称和 golang 内部类型的对应关系:

intintstringstringfloatfloat64boolbooltimetime.Durationdurationtime.Timeipnet.IP[]int[]int[]string[]string

常用的数据类型格式：

1tTtrueTRUETrue0fFfalseFALSEFalse2019-11-272019-11-27T00:00:002019-11-27T00:00:00Z8:00now1,2,3,4apple,banana

链接