package main

import (
	"bufio"
	"fmt"
	"os/exec"
	"strings"
)

func main() {
	fmt.Printf("Hello\n")

	cmd := exec.Command("sh", "-c", "echo Wout; sleep 1; echo 1>&2 Werr; sleep 1; echo Wout2; sleep 1; echo 1>&2 Werr2")
	stdout, _ := cmd.StdoutPipe()
	stderr, _ := cmd.StderrPipe()

	cout := make(chan int)
	go func() {
		scanout := bufio.NewScanner(stdout)
		for scanout.Scan() {
			text := strings.TrimSpace(scanout.Text())
			fmt.Printf("[stdout] %s\n", text)
		}
		cout <- 1
	}()

	cerr := make(chan int)
	go func() {
		scanerr := bufio.NewScanner(stderr)
		for scanerr.Scan() {
			text := strings.TrimSpace(scanerr.Text())
			fmt.Printf("[stderr] %s\n", text)
		}
		cerr <- 1
	}()

	cmd.Start()
	<-cout
	<-cerr
}