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flag_duration.go

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package cli

import (

"fmt"

"time"

)

type DurationFlag = FlagBase[time.Duration, NoConfig, durationValue]

// -- time.Duration Value

type durationValue time.Duration

// Below functions are to satisfy the ValueCreator interface

func (d durationValue) Create(val time.Duration, p *time.Duration, c NoConfig) Value {

*p = val

return (*durationValue)(p)

}

func (d durationValue) ToString(val time.Duration) string {

d = durationValue(val)

return d.String()

}

// Below functions are to satisfy the flag.Value interface

func (d *durationValue) Set(s string) error {

v, err := time.ParseDuration(s)

if err != nil {

return err

}

*d = durationValue(v)

return err

}

func (d *durationValue) Get() any { return time.Duration(*d) }

func (d *durationValue) String() string {

return fmt.Sprintf("%v", time.Duration(*d))

}

func (cmd *Command) Duration(name string) time.Duration {

if v, ok := cmd.Value(name).(time.Duration); ok {

tracef("duration available for flag name %[1]q with value=%[2]v (cmd=%[3]q)", name, v, cmd.Name)

return v

}

tracef("duration NOT available for flag name %[1]q (cmd=%[2]q)", name, cmd.Name)

return 0

}