// +build !windows

package utils

import (
    "os/exec"
    "syscall"
    "time"
)

// 执行shell命令，可设置执行超时时间
func ExecShellWithTimeout(timeout int, command string) (string, error)  {
    cmd := exec.Command("/bin/bash", "-c", command)
    cmd.SysProcAttr = &syscall.SysProcAttr{
        Setpgid: true,
    }

    // 不限制超时
    if timeout == 0 {
        output ,err := cmd.CombinedOutput()
        return string(output), err
    }

    d := time.Duration(timeout) * time.Second
    timer := time.AfterFunc(d, func() {
        // 超时kill进程
        syscall.Kill(-cmd.Process.Pid, syscall.SIGKILL)
    })
    output ,err := cmd.CombinedOutput()
    timer.Stop()

    return string(output), err
}