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package lin
import (
"bytes"
"fmt"
"github.com/hashicorp/packer/packer"
"github.com/mitchellh/multistep"
"log"
)
type StepGeneralizeOS struct {
Command string
}
func (s *StepGeneralizeOS) Run(state multistep.StateBag) multistep.StepAction {
ui := state.Get("ui").(packer.Ui)
comm := state.Get("communicator").(packer.Communicator)
ui.Say("Executing OS generalization...")
var stdout, stderr bytes.Buffer
cmd := &packer.RemoteCmd{
Command: s.Command,
Stdout: &stdout,
Stderr: &stderr,
}
if err := comm.Start(cmd); err != nil {
err = fmt.Errorf("Failed executing OS generalization command: %s", err)
state.Put("error", err)
ui.Error(err.Error())
return multistep.ActionHalt
}
// Wait for the command to run
cmd.Wait()
// If the command failed to run, notify the user in some way.
if cmd.ExitStatus != 0 {
state.Put("error", fmt.Errorf(
"OS generalization has non-zero exit status.\n\nStdout: %s\n\nStderr: %s",
stdout.String(), stderr.String()))
return multistep.ActionHalt
}
log.Printf("OS generalization stdout: %s", stdout.String())
log.Printf("OS generalization stderr: %s", stderr.String())
return multistep.ActionContinue
}
func (s *StepGeneralizeOS) Cleanup(state multistep.StateBag) {
// do nothing
}
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