85 lines
1.8 KiB
Go
85 lines
1.8 KiB
Go
package qemu
|
|
|
|
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:
|
|
//
|
|
// Produces:
|
|
type stepCopyFloppy struct {
|
|
floppyPath string
|
|
}
|
|
|
|
func (s *stepCopyFloppy) 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
|
|
}
|
|
|
|
// copy the floppy for exclusive use during the vm creation
|
|
ui := state.Get("ui").(packer.Ui)
|
|
ui.Say("Copying floppy disk for exclusive use...")
|
|
floppyPath, err := s.copyFloppy(floppyPath)
|
|
if err != nil {
|
|
state.Put("error", fmt.Errorf("Error preparing floppy: %s", err))
|
|
return multistep.ActionHalt
|
|
}
|
|
|
|
// Track the path so that we can remove it later
|
|
s.floppyPath = floppyPath
|
|
|
|
return multistep.ActionContinue
|
|
}
|
|
|
|
func (s *stepCopyFloppy) Cleanup(state multistep.StateBag) {
|
|
if s.floppyPath == "" {
|
|
return
|
|
}
|
|
|
|
// Delete the floppy disk
|
|
ui := state.Get("ui").(packer.Ui)
|
|
ui.Say("Removing floppy disk previously copied...")
|
|
defer os.Remove(s.floppyPath)
|
|
}
|
|
|
|
func (s *stepCopyFloppy) copyFloppy(path string) (string, error) {
|
|
tempdir, err := ioutil.TempDir("", "packer")
|
|
if err != nil {
|
|
return "", err
|
|
}
|
|
|
|
floppyPath := filepath.Join(tempdir, "floppy.img")
|
|
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
|
|
}
|