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package try
import "errors"
// MaxRetries is the maximum number of retries before bailing.
var MaxRetries = 10
var errMaxRetriesReached = errors.New("exceeded retry limit")
// Func represents functions that can be retried.
type Func func(attempt int) (retry bool, err error)
// Do keeps trying the function until the second argument
// returns false, or no error is returned.
func Do(fn Func) error {
var err error
var cont bool
attempt := 1
for {
cont, err = fn(attempt)
if !cont || err == nil {
break
}
attempt++
if attempt > MaxRetries {
return errMaxRetriesReached
}
}
return err
}
// IsMaxRetries checks whether the error is due to hitting the
// maximum number of retries or not.
func IsMaxRetries(err error) bool {
return err == errMaxRetriesReached
}
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