github.com/daniellockard/packer@v0.7.6-0.20141210173435-5a9390934716/builder/qemu/step_resize_disk.go (about)

     1  package qemu
     2  
     3  import (
     4  	"fmt"
     5  	"github.com/mitchellh/multistep"
     6  	"github.com/mitchellh/packer/packer"
     7  	"path/filepath"
     8  	"strings"
     9  )
    10  
    11  // This step resizes the virtual disk that will be used as the
    12  // hard drive for the virtual machine.
    13  type stepResizeDisk struct{}
    14  
    15  func (s *stepResizeDisk) Run(state multistep.StateBag) multistep.StepAction {
    16  	config := state.Get("config").(*config)
    17  	driver := state.Get("driver").(Driver)
    18  	ui := state.Get("ui").(packer.Ui)
    19  	path := filepath.Join(config.OutputDir, fmt.Sprintf("%s.%s", config.VMName,
    20  		strings.ToLower(config.Format)))
    21  
    22  	command := []string{
    23  		"resize",
    24  		path,
    25  		fmt.Sprintf("%vM", config.DiskSize),
    26  	}
    27  
    28  	if config.DiskImage == false {
    29  		return multistep.ActionContinue
    30  	}
    31  
    32  	ui.Say("Resizing hard drive...")
    33  	if err := driver.QemuImg(command...); err != nil {
    34  		err := fmt.Errorf("Error creating hard drive: %s", err)
    35  		state.Put("error", err)
    36  		ui.Error(err.Error())
    37  		return multistep.ActionHalt
    38  	}
    39  
    40  	return multistep.ActionContinue
    41  }
    42  
    43  func (s *stepResizeDisk) Cleanup(state multistep.StateBag) {}