packer-cn/builder/parallels/common/step_attach_floppy.go

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package common
import (
"context"
"fmt"
"log"
"github.com/hashicorp/packer/helper/multistep"
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"github.com/hashicorp/packer/packer"
)
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// StepAttachFloppy is a step that attaches a floppy to the virtual machine.
//
// Uses:
// driver Driver
// ui packer.Ui
// vmName string
//
// Produces:
type StepAttachFloppy struct {
floppyPath string
}
// Run adds a virtual FDD device to the VM and attaches the image.
// If the image is not specified, then this step will be skipped.
func (s *StepAttachFloppy) Run(ctx context.Context, 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
}
driver := state.Get("driver").(Driver)
ui := state.Get("ui").(packer.Ui)
vmName := state.Get("vmName").(string)
ui.Say("Deleting any current floppy disk...")
// Delete the floppy disk controller
delCommand := []string{
"set", vmName,
"--device-del", "fdd0",
}
// This will almost certainly fail with 'The fdd0 device does not exist.'
driver.Prlctl(delCommand...)
ui.Say("Attaching floppy disk...")
// Attaching the floppy disk
addCommand := []string{
"set", vmName,
"--device-add", "fdd",
"--image", floppyPath,
"--connect",
}
if err := driver.Prlctl(addCommand...); err != nil {
state.Put("error", fmt.Errorf("Error adding floppy: %s", err))
return multistep.ActionHalt
}
// Track the path so that we can unregister it from Parallels later
s.floppyPath = floppyPath
return multistep.ActionContinue
}
// Cleanup removes the virtual FDD device attached to the VM.
func (s *StepAttachFloppy) Cleanup(state multistep.StateBag) {
driver := state.Get("driver").(Driver)
vmName := state.Get("vmName").(string)
if s.floppyPath == "" {
return
}
log.Println("Detaching floppy disk...")
command := []string{
"set", vmName,
"--device-del", "fdd0",
}
driver.Prlctl(command...)
}