packer-cn/builder/qemu/step_create_disk.go

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package qemu
import (
"fmt"
"github.com/mitchellh/multistep"
"github.com/mitchellh/packer/packer"
"path/filepath"
"strings"
)
// This step creates the virtual disk that will be used as the
// hard drive for the virtual machine.
type stepCreateDisk struct{}
func (s *stepCreateDisk) Run(state multistep.StateBag) multistep.StepAction {
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config := state.Get("config").(*Config)
driver := state.Get("driver").(Driver)
ui := state.Get("ui").(packer.Ui)
name := config.VMName + "." + strings.ToLower(config.Format)
path := filepath.Join(config.OutputDir, name)
command := []string{
"create",
"-f", config.Format,
path,
fmt.Sprintf("%vM", config.DiskSize),
}
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if config.DiskImage == true {
return multistep.ActionContinue
}
ui.Say("Creating hard drive...")
if err := driver.QemuImg(command...); err != nil {
err := fmt.Errorf("Error creating hard drive: %s", err)
state.Put("error", err)
ui.Error(err.Error())
return multistep.ActionHalt
}
state.Put("disk_filename", name)
return multistep.ActionContinue
}
func (s *stepCreateDisk) Cleanup(state multistep.StateBag) {}