-
Notifications
You must be signed in to change notification settings - Fork 0
/
main.go
50 lines (40 loc) · 822 Bytes
/
main.go
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
package main
import (
"log"
"os"
"os/exec"
"strconv"
"time"
)
func main() {
log := log.New(os.Stderr, "", 0)
args := os.Args[1:]
if len(args) < 1 {
log.Fatal("rep: not enough arguments provided")
}
var bounded bool
n, err := strconv.Atoi(args[0])
if err == nil {
bounded = true
args = args[1:]
}
if len(args) < 1 {
log.Fatal("rep: no command specified")
}
if _, err := exec.LookPath(args[0]); err != nil {
log.Fatal("rep: command not found")
}
if !bounded {
log.Println("rep: repeating forever")
time.Sleep(3 * time.Second)
}
for i := 0; !bounded || i < n; i++ {
cmd := exec.Command(args[0], args[1:]...)
cmd.Stdin = os.Stdin
cmd.Stdout = os.Stdout
cmd.Stderr = os.Stderr
if err := cmd.Run(); err != nil {
log.Fatal("rep: unknown problem running command")
}
}
}