package main

import (
	"bytes"
	"context"
	"fmt"
	"io"
	"os/exec"
	"strings"
)

func main() {
	ctx := context.Background()
	buf := bytes.NewBuffer([]byte{})

	script := "echo ja; Get-Location"

	cmd := exec.CommandContext(ctx, "powershell")

	out, _ := cmd.StdoutPipe()
	cmd.Stderr = cmd.Stdout
	in, _ := cmd.StdinPipe()

	go func() {
		io.Copy(in, strings.NewReader(script))
		in.Close()
	}()
	fmt.Println("####### START #######")
	if err := cmd.Start(); err != nil {
		fmt.Printf("Start err: %v\n\n", err)
	}

	go io.Copy(buf, out)

	fmt.Println("####### WAIT #######")
	if err := cmd.Wait(); err != nil {
		fmt.Printf("Wait err: %v\n\n", err)
	}
	fmt.Println("####### END #######")

	fmt.Print(buf)
}