github.phpd.cn/hashicorp/packer@v1.3.2/builder/parallels/common/step_attach_floppy.go (about)

     1  package common
     2  
     3  import (
     4  	"context"
     5  	"fmt"
     6  	"log"
     7  
     8  	"github.com/hashicorp/packer/helper/multistep"
     9  	"github.com/hashicorp/packer/packer"
    10  )
    11  
    12  // StepAttachFloppy is a step that attaches a floppy to the virtual machine.
    13  //
    14  // Uses:
    15  //   driver Driver
    16  //   ui packer.Ui
    17  //   vmName string
    18  //
    19  // Produces:
    20  type StepAttachFloppy struct {
    21  	floppyPath string
    22  }
    23  
    24  // Run adds a virtual FDD device to the VM and attaches the image.
    25  // If the image is not specified, then this step will be skipped.
    26  func (s *StepAttachFloppy) Run(_ context.Context, state multistep.StateBag) multistep.StepAction {
    27  	// Determine if we even have a floppy disk to attach
    28  	var floppyPath string
    29  	if floppyPathRaw, ok := state.GetOk("floppy_path"); ok {
    30  		floppyPath = floppyPathRaw.(string)
    31  	} else {
    32  		log.Println("No floppy disk, not attaching.")
    33  		return multistep.ActionContinue
    34  	}
    35  
    36  	driver := state.Get("driver").(Driver)
    37  	ui := state.Get("ui").(packer.Ui)
    38  	vmName := state.Get("vmName").(string)
    39  
    40  	ui.Say("Deleting any current floppy disk...")
    41  	// Delete the floppy disk controller
    42  	delCommand := []string{
    43  		"set", vmName,
    44  		"--device-del", "fdd0",
    45  	}
    46  	// This will almost certainly fail with 'The fdd0 device does not exist.'
    47  	driver.Prlctl(delCommand...)
    48  
    49  	ui.Say("Attaching floppy disk...")
    50  	// Attaching the floppy disk
    51  	addCommand := []string{
    52  		"set", vmName,
    53  		"--device-add", "fdd",
    54  		"--image", floppyPath,
    55  		"--connect",
    56  	}
    57  	if err := driver.Prlctl(addCommand...); err != nil {
    58  		state.Put("error", fmt.Errorf("Error adding floppy: %s", err))
    59  		return multistep.ActionHalt
    60  	}
    61  
    62  	// Track the path so that we can unregister it from Parallels later
    63  	s.floppyPath = floppyPath
    64  
    65  	return multistep.ActionContinue
    66  }
    67  
    68  // Cleanup removes the virtual FDD device attached to the VM.
    69  func (s *StepAttachFloppy) Cleanup(state multistep.StateBag) {
    70  	driver := state.Get("driver").(Driver)
    71  	vmName := state.Get("vmName").(string)
    72  
    73  	if s.floppyPath == "" {
    74  		return
    75  	}
    76  
    77  	log.Println("Detaching floppy disk...")
    78  	command := []string{
    79  		"set", vmName,
    80  		"--device-del", "fdd0",
    81  	}
    82  	driver.Prlctl(command...)
    83  }