packer-cn/vendor/github.com/masterzen/winrm/powershell.go

28 lines
759 B
Go

package winrm
import (
"encoding/base64"
"golang.org/x/text/encoding/unicode"
)
// Powershell wraps a PowerShell script
// and prepares it for execution by the winrm client
func Powershell(psCmd string) string {
// Disable unnecessary progress bars which considered as stderr.
psCmd = "$ProgressPreference = 'SilentlyContinue';" + psCmd
// Encode string to UTF16-LE
encoder := unicode.UTF16(unicode.LittleEndian, unicode.IgnoreBOM).NewEncoder()
encoded, err := encoder.String(psCmd)
if err != nil {
return ""
}
// Finally make it base64 encoded which is required for powershell.
psCmd = base64.StdEncoding.EncodeToString([]byte(encoded))
// Specify powershell.exe to run encoded command
return "powershell.exe -EncodedCommand " + psCmd
}