-
-
Save nerdatmath/10f3f254f39f70010ac5 to your computer and use it in GitHub Desktop.
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
package main | |
import ( | |
"io" | |
"log" | |
"os" | |
"os/exec" | |
) | |
func Command(args ...string) { | |
var ch = make(chan int) | |
cmd := exec.Command(args[0], args[1:]...) | |
connect(ch, cmd) | |
if err := cmd.Start(); err != nil { | |
log.Fatal(err) | |
} | |
_, _ = <-ch, <-ch | |
} | |
func connect(ch chan int, c *exec.Cmd) (err error) { | |
if inp, err := c.StdinPipe(); err == nil { | |
go loop(ch, os.Stdin, inp) | |
if outp, err := c.StdoutPipe(); err == nil { | |
go loop(ch, outp, os.Stdout) | |
if errp, err := c.StderrPipe(); err == nil { | |
go loop(ch, errp, os.Stderr) | |
return nil | |
} | |
} | |
} | |
log.Fatal(err) | |
return | |
} | |
func loop(ch chan int, inp io.Reader, outp io.Writer) { | |
var buf = make([]byte, 1) | |
for { | |
_, err := inp.Read(buf) | |
if err == nil { | |
_, err = outp.Write(buf) | |
if err == nil { | |
continue | |
} | |
} | |
ch <- 1 | |
return | |
} | |
} | |
func main() { | |
Command("bash") | |
Command("ping", "-c3", "www.google.com") | |
} |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment