added step to create temp dir; cleanup

packer/builder/hyperv/common/step_create_tempdir.go

@@ -0,0 +1,51 @@
+package common
+
+import (
+	"fmt"
+	"github.com/mitchellh/multistep"
+	"github.com/mitchellh/packer/packer"
+	"io/ioutil"
+	"os"
+)
+
+type StepCreateTempDir struct {
+	dirPath string
+}
+
+func (s *StepCreateTempDir) Run(state multistep.StateBag) multistep.StepAction {
+	ui := state.Get("ui").(packer.Ui)
+
+	ui.Say("Creating temporary directory...")
+
+	tempDir := os.TempDir()
+	packerTempDir, err := ioutil.TempDir(tempDir, "packer")
+	if err != nil {
+		err := fmt.Errorf("Error creating temporary directory: %s", err)
+		state.Put("error", err)
+		ui.Error(err.Error())
+		return multistep.ActionHalt
+	}
+
+	s.dirPath = packerTempDir;
+	state.Put("packerTempDir", packerTempDir)
+
+//	ui.Say("packerTempDir = '" + packerTempDir + "'")
+
+	return multistep.ActionContinue
+}
+
+func (s *StepCreateTempDir) Cleanup(state multistep.StateBag) {
+	if s.dirPath == "" {
+		return
+	}
+
+	ui := state.Get("ui").(packer.Ui)
+
+	ui.Say("Deleting temporary directory...")
+
+	err := os.RemoveAll(s.dirPath)
+
+	if err != nil {
+		ui.Error(fmt.Sprintf("Error deleting temporary directory: %s", err))
+	}
+}