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d1a323fa9d
* Add gocritic linter `gocritic` provides diagnostics that check for bugs, performance, and style issues We disable the following checks: - commentFormatting - captLocal - deprecatedComment This PR contains many `//nolint:gocritic` to disable `appendAssign`.
33 lines
643 B
Go
33 lines
643 B
Go
package util
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import (
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"math/rand"
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"time"
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)
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// Retry retries a given toExec function calling onError on failed attempts
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// onError shouldn be a lightweight function and shouldn't be blocking
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func Retry(attempts int, sleep time.Duration, toExec func() error, onError func(e error)) error {
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if err := toExec(); err != nil {
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if s, ok := err.(stop); ok {
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return s.error
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}
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if attempts--; attempts > 0 {
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jitter := time.Duration(rand.Int63n(int64(sleep)))
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sleep += jitter / 2
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onError(err)
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time.Sleep(sleep)
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return Retry(attempts, 2*sleep, toExec, onError)
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}
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return err
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}
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return nil
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}
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type stop struct {
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error
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}
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