Revert "Merge pull request #2807 from markpeek/markpeek-docker-tmpdir"

This reverts commit 31d3678814, reversing
changes made to a3a7c974d0.

builder/docker/step_temp_dir.go

@@ -6,7 +6,6 @@ import (
 	"github.com/mitchellh/packer/packer"
 	"io/ioutil"
 	"os"
-	"path/filepath"
 )
 
 // StepTempDir creates a temporary directory that we use in order to
@@ -19,19 +18,7 @@ func (s *StepTempDir) Run(state multistep.StateBag) multistep.StepAction {
 	ui := state.Get("ui").(packer.Ui)
 
 	ui.Say("Creating a temporary directory for sharing data...")
-	// Create the docker temp files in the current working directory
-	// to work around an issue when running with docker-machine
-	// using vm's needing access to shared folder content. This assumes
-	// the current working directory is mapped as a share folder.
-	// Allow TMPDIR to override this location.
-	path := ""
-	if tmpdir := os.Getenv("TMPDIR"); tmpdir == "" {
-		abspath, err := filepath.Abs(".")
-		if err == nil {
-			path = abspath
-		}
-	}
-	td, err := ioutil.TempDir(path, "packer-docker")
+	td, err := ioutil.TempDir("", "packer-docker")
 	if err != nil {
 		err := fmt.Errorf("Error making temp dir: %s", err)
 		state.Put("error", err)

builder/docker/step_temp_dir_test.go

@@ -3,8 +3,6 @@ package docker
 import (
 	"github.com/mitchellh/multistep"
 	"os"
-	"path/filepath"
-	"runtime"
 	"testing"
 )
 
@@ -12,7 +10,7 @@ func TestStepTempDir_impl(t *testing.T) {
 	var _ multistep.Step = new(StepTempDir)
 }
 
-func testStepTempDir_impl(t *testing.T) string {
+func TestStepTempDir(t *testing.T) {
 	state := testState(t)
 	step := new(StepTempDir)
 	defer step.Cleanup(state)
@@ -43,36 +41,4 @@ func testStepTempDir_impl(t *testing.T) string {
 	if _, err := os.Stat(dir); err == nil {
 		t.Fatalf("dir should be gone")
 	}
-
-	return dir
-}
-
-func TestStepTempDir(t *testing.T) {
-	testStepTempDir_impl(t)
-}
-
-func TestStepTempDir_notmpdir(t *testing.T) {
-	tempenv := "TMPDIR"
-	if runtime.GOOS == "windows" {
-		tempenv = "TMP"
-	}
-	// Verify empty TMPDIR maps to current working directory
-	oldenv := os.Getenv(tempenv)
-	os.Setenv(tempenv, "")
-	defer os.Setenv(tempenv, oldenv)
-
-	dir1 := testStepTempDir_impl(t)
-
-	// Now set TMPDIR to current directory
-	abspath, err := filepath.Abs(".")
-	if err != nil {
-		t.Fatalf("could not get current working directory")
-	}
-	os.Setenv(tempenv, abspath)
-
-	dir2 := testStepTempDir_impl(t)
-
-	if filepath.Dir(dir1) != filepath.Dir(dir2) {
-		t.Fatalf("temp base directories do not match: %s %s", filepath.Dir(dir1), filepath.Dir(dir2))
-	}
 }