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49 lines
761 B
Go
49 lines
761 B
Go
package main
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import (
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"flag"
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"fmt"
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"os"
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"os/exec"
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"time"
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)
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var (
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count int
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interval time.Duration
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)
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func main() {
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flag.IntVar(&count, "c", 5, "maximum execution times")
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flag.DurationVar(&interval, "i", time.Second, "retry interval")
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flag.Parse()
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if count < 1 {
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count = 1
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}
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if interval < 0 {
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interval = 0
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}
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args := flag.Args()
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if len(args) == 0 {
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fmt.Println("Please give the command to execute!")
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os.Exit(1)
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}
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var err error
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for i := 0; i < count; i++ {
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if i > 0 {
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fmt.Printf("retry %d after %s...\n", i, interval)
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time.Sleep(interval)
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}
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cmd := exec.Command(args[0], args[1:]...)
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cmd.Stdout = os.Stdout
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cmd.Stderr = os.Stderr
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err = cmd.Run()
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if err == nil {
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break
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}
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}
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if err != nil {
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os.Exit(1)
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}
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}
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