Golang Powershell Examples

Example #1

File: cp.go Project: rnaveiras/packer

func restoreContent(client *winrm.Client, fromPath, toPath string) error {
	shell, err := client.CreateShell()
	if err != nil {
		return err
	}

	defer shell.Close()
	script := fmt.Sprintf(`
		$tmp_file_path = [System.IO.Path]::GetFullPath("%s")
		$dest_file_path = [System.IO.Path]::GetFullPath("%s".Trim("'"))
		if (Test-Path $dest_file_path) {
			rm $dest_file_path
		}
		else {
			$dest_dir = ([System.IO.Path]::GetDirectoryName($dest_file_path))
			New-Item -ItemType directory -Force -ErrorAction SilentlyContinue -Path $dest_dir | Out-Null
		}

		if (Test-Path $tmp_file_path) {
			$base64_lines = Get-Content $tmp_file_path
			$base64_string = [string]::join("",$base64_lines)
			$bytes = [System.Convert]::FromBase64String($base64_string) 
			[System.IO.File]::WriteAllBytes($dest_file_path, $bytes)
		} else {
			echo $null > $dest_file_path
		}
	`, fromPath, toPath)

	cmd, err := shell.Execute(winrm.Powershell(script))
	if err != nil {
		return err
	}
	defer cmd.Close()

	var wg sync.WaitGroup
	copyFunc := func(w io.Writer, r io.Reader) {
		defer wg.Done()
		io.Copy(w, r)
	}

	wg.Add(2)
	go copyFunc(os.Stdout, cmd.Stdout)
	go copyFunc(os.Stderr, cmd.Stderr)

	cmd.Wait()
	wg.Wait()

	if cmd.ExitCode() != 0 {
		return errors.New(fmt.Sprintf("restore operation returned code=%d", cmd.ExitCode()))
	}
	return nil
}

Example #2

File: provisioner.go Project: rnaveiras/packer

import (
	"fmt"
	"log"
	"sync"
	"time"

	"github.com/masterzen/winrm"
	"github.com/mitchellh/packer/common"
	"github.com/mitchellh/packer/helper/config"
	"github.com/mitchellh/packer/packer"
	"github.com/mitchellh/packer/template/interpolate"
)

var DefaultRestartCommand = "shutdown /r /f /t 0 /c \"packer restart\""
var DefaultRestartCheckCommand = winrm.Powershell(`echo "${env:COMPUTERNAME} restarted."`)
var retryableSleep = 5 * time.Second
var TryCheckReboot = "shutdown.exe -f -r -t 60"
var AbortReboot = "shutdown.exe -a"

type Config struct {
	common.PackerConfig `mapstructure:",squash"`

	// The command used to restart the guest machine
	RestartCommand string `mapstructure:"restart_command"`

	// The command used to check if the guest machine has restarted
	// The output of this command will be displayed to the user
	RestartCheckCommand string `mapstructure:"restart_check_command"`

	// The timeout for waiting for the machine to restart