packer-cn/builder/virtualbox/builder.go

95 lines
1.8 KiB
Go

package virtualbox
import (
"fmt"
"github.com/mitchellh/mapstructure"
"github.com/mitchellh/multistep"
"github.com/mitchellh/packer/packer"
"log"
"os/exec"
)
const BuilderId = "mitchellh.virtualbox"
type Builder struct {
config config
driver Driver
runner multistep.Runner
}
type config struct {
GuestOSType string `mapstructure:"guest_os_type"`
OutputDir string `mapstructure:"output_directory"`
}
func (b *Builder) Prepare(raw interface{}) error {
var err error
if err := mapstructure.Decode(raw, &b.config); err != nil {
return err
}
if b.config.GuestOSType == "" {
b.config.GuestOSType = "Other"
}
if b.config.OutputDir == "" {
b.config.OutputDir = "virtualbox"
}
errs := make([]error, 0)
b.driver, err = b.newDriver()
if err != nil {
errs = append(errs, fmt.Errorf("Failed creating VirtualBox driver: %s", err))
}
if len(errs) > 0 {
return &packer.MultiError{errs}
}
return nil
}
func (b *Builder) Run(ui packer.Ui, hook packer.Hook, cache packer.Cache) packer.Artifact {
steps := []multistep.Step{
new(stepPrepareOutputDir),
new(stepSuppressMessages),
}
// Setup the state bag
state := make(map[string]interface{})
state["cache"] = cache
state["config"] = &b.config
state["driver"] = b.driver
state["hook"] = hook
state["ui"] = ui
// Run
b.runner = &multistep.BasicRunner{Steps: steps}
b.runner.Run(state)
return nil
}
func (b *Builder) Cancel() {
if b.runner != nil {
log.Println("Cancelling the step runner...")
b.runner.Cancel()
}
}
func (b *Builder) newDriver() (Driver, error) {
vboxmanagePath, err := exec.LookPath("VBoxManage")
if err != nil {
return nil, err
}
log.Printf("VBoxManage path: %s", vboxmanagePath)
driver := &VBox42Driver{vboxmanagePath}
if err := driver.Verify(); err != nil {
return nil, err
}
return driver, nil
}