mirror of https://github.com/rancher/wins.git
59 lines
1.9 KiB
Go
59 lines
1.9 KiB
Go
package powershell
|
|
|
|
import (
|
|
"encoding/json"
|
|
"errors"
|
|
"fmt"
|
|
"os/exec"
|
|
"strings"
|
|
)
|
|
|
|
// Sourced from https://github.com/flannel-io/flannel/blob/d31b0dc85a5a15bda5e606acbbbb9f7089441a87/pkg/powershell/powershell.go
|
|
|
|
//commandWrapper ensures that exceptions are written to stdout and the powershell process exit code is -1
|
|
const commandWrapper = `$ErrorActionPreference="Stop";try { %s } catch { Write-Host $_; os.Exit(-1) }`
|
|
|
|
// RunCommand executes a given powershell command.
|
|
//
|
|
// When the command throws a powershell exception, RunCommand will return the exception message as error.
|
|
func RunCommand(command string) ([]byte, error) {
|
|
cmd := exec.Command("powershell.exe", "-NoLogo", "-NoProfile", "-NonInteractive", "-Command", fmt.Sprintf(commandWrapper, command))
|
|
|
|
stdout, err := cmd.Output()
|
|
if err != nil {
|
|
if cmd.ProcessState.ExitCode() != 0 {
|
|
message := strings.TrimSpace(string(stdout))
|
|
return []byte{}, errors.New(message)
|
|
}
|
|
|
|
return []byte{}, err
|
|
}
|
|
|
|
return stdout, nil
|
|
}
|
|
|
|
// RunCommandf executes a given powershell command. Command argument formats according to a format specifier (See fmt.Sprintf).
|
|
//
|
|
// When the command throws a powershell exception, RunCommandf will return the exception message as error.
|
|
func RunCommandf(command string, a ...interface{}) ([]byte, error) {
|
|
return RunCommand(fmt.Sprintf(command, a...))
|
|
}
|
|
|
|
// RunCommandWithJSONResult executes a given powershell command.
|
|
// The command will be wrapped with ConvertTo-Json.
|
|
//
|
|
// You can Wrap your command with @(<cmd>) to ensure that the returned json is an array
|
|
//
|
|
// When the command throws a powershell exception, RunCommandf will return the exception message as error.
|
|
func RunCommandWithJSONResult(command string, v interface{}) error {
|
|
wrappedCommand := fmt.Sprintf(commandWrapper, "ConvertTo-Json (%s)")
|
|
wrappedCommand = fmt.Sprintf(wrappedCommand, command)
|
|
|
|
stdout, err := RunCommandf(wrappedCommand)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
|
|
return json.Unmarshal(stdout, v)
|
|
}
|