forked from hashicorp/packer
/
step_attach_floppy.go
131 lines (111 loc) · 2.96 KB
/
step_attach_floppy.go
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package common
import (
"fmt"
"github.com/mitchellh/multistep"
"github.com/mitchellh/packer/packer"
"io"
"io/ioutil"
"log"
"os"
"path/filepath"
)
// This step attaches the ISO to the virtual machine.
//
// Uses:
// driver Driver
// ui packer.Ui
// vmName string
//
// Produces:
type StepAttachFloppy struct {
floppyPath string
}
func (s *StepAttachFloppy) Run(state multistep.StateBag) multistep.StepAction {
// Determine if we even have a floppy disk to attach
var floppyPath string
if floppyPathRaw, ok := state.GetOk("floppy_path"); ok {
floppyPath = floppyPathRaw.(string)
} else {
log.Println("No floppy disk, not attaching.")
return multistep.ActionContinue
}
// VirtualBox is really dumb and can't figure out the format of the file
// without an extension, so we need to add the "vfd" extension to the
// floppy.
floppyPath, err := s.copyFloppy(floppyPath)
if err != nil {
state.Put("error", fmt.Errorf("Error preparing floppy: %s", err))
return multistep.ActionHalt
}
driver := state.Get("driver").(Driver)
ui := state.Get("ui").(packer.Ui)
vmName := state.Get("vmName").(string)
ui.Say("Attaching floppy disk...")
// Create the floppy disk controller
command := []string{
"storagectl", vmName,
"--name", "Floppy Controller",
"--add", "floppy",
}
if err := driver.VBoxManage(command...); err != nil {
state.Put("error", fmt.Errorf("Error creating floppy controller: %s", err))
return multistep.ActionHalt
}
// Attach the floppy to the controller
command = []string{
"storageattach", vmName,
"--storagectl", "Floppy Controller",
"--port", "0",
"--device", "0",
"--type", "fdd",
"--medium", floppyPath,
}
if err := driver.VBoxManage(command...); err != nil {
state.Put("error", fmt.Errorf("Error attaching floppy: %s", err))
return multistep.ActionHalt
}
// Track the path so that we can unregister it from VirtualBox later
s.floppyPath = floppyPath
return multistep.ActionContinue
}
func (s *StepAttachFloppy) Cleanup(state multistep.StateBag) {
if s.floppyPath == "" {
return
}
// Delete the floppy disk
defer os.Remove(s.floppyPath)
driver := state.Get("driver").(Driver)
vmName := state.Get("vmName").(string)
command := []string{
"storageattach", vmName,
"--storagectl", "Floppy Controller",
"--port", "0",
"--device", "0",
"--medium", "none",
}
if err := driver.VBoxManage(command...); err != nil {
log.Printf("Error unregistering floppy: %s", err)
}
}
func (s *StepAttachFloppy) copyFloppy(path string) (string, error) {
tempdir, err := ioutil.TempDir("", "packer")
if err != nil {
return "", err
}
floppyPath := filepath.Join(tempdir, "floppy.vfd")
f, err := os.Create(floppyPath)
if err != nil {
return "", err
}
defer f.Close()
sourceF, err := os.Open(path)
if err != nil {
return "", err
}
defer sourceF.Close()
log.Printf("Copying floppy to temp location: %s", floppyPath)
if _, err := io.Copy(f, sourceF); err != nil {
return "", err
}
return floppyPath, nil
}