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