post-processor/vagrant-cloud: try upload once

* fixes multiple uploads mentioned in hashicorp#4973
* removed unused token code

builder/amazon/common/step_create_tags.go

@@ -105,7 +105,7 @@ func (s *StepCreateTags) Run(state multistep.StateBag) multistep.StepAction {
 		ReportTags(ui, snapshotTags)
 
 		// Retry creating tags for about 2.5 minutes
-		err = retry.Retry(0.2, 30, 11, func() (bool, error) {
+		err = retry.Retry(0.2, 30, 11, func(_ uint) (bool, error) {
 			// Tag images and snapshots
 			_, err := regionconn.CreateTags(&ec2.CreateTagsInput{
 				Resources: resourceIds,

builder/amazon/common/step_run_source_instance.go

@@ -294,7 +294,7 @@ func (s *StepRunSourceInstance) Run(state multistep.StateBag) multistep.StepActi
 	ReportTags(ui, ec2Tags)
 
 	// Retry creating tags for about 2.5 minutes
-	err = retry.Retry(0.2, 30, 11, func() (bool, error) {
+	err = retry.Retry(0.2, 30, 11, func(_ uint) (bool, error) {
 		_, err := ec2conn.CreateTags(&ec2.CreateTagsInput{
 			Tags:      ec2Tags,
 			Resources: []*string{instance.InstanceId},

builder/googlecompute/driver_gce.go

@@ -582,7 +582,7 @@ type stateRefreshFunc func() (string, error)
 // waitForState will spin in a loop forever waiting for state to
 // reach a certain target.
 func waitForState(errCh chan<- error, target string, refresh stateRefreshFunc) error {
-	err := common.Retry(2, 2, 0, func() (bool, error) {
+	err := common.Retry(2, 2, 0, func(_ uint) (bool, error) {
 		state, err := refresh()
 		if err != nil {
 			return false, err

builder/googlecompute/step_wait_startup_script.go

@@ -22,7 +22,7 @@ func (s *StepWaitStartupScript) Run(state multistep.StateBag) multistep.StepActi
 	ui.Say("Waiting for any running startup script to finish...")
 
 	// Keep checking the serial port output to see if the startup script is done.
-	err := common.Retry(10, 60, 0, func() (bool, error) {
+	err := common.Retry(10, 60, 0, func(_ uint) (bool, error) {
 		status, err := driver.GetInstanceMetadata(config.Zone,
 			instanceName, StartupScriptStatusKey)
 

builder/virtualbox/common/step_remove_devices.go

@@ -45,7 +45,7 @@ func (s *StepRemoveDevices) Run(state multistep.StateBag) multistep.StepAction {
 		var vboxErr error
 		// Retry for 10 minutes to remove the floppy controller.
 		log.Printf("Trying for 10 minutes to remove floppy controller.")
-		err := common.Retry(15, 15, 40, func() (bool, error) {
+		err := common.Retry(15, 15, 40, func(_ uint) (bool, error) {
 			// Don't forget to remove the floppy controller as well
 			command = []string{
 				"storagectl", vmName,

common/retry.go

@@ -8,7 +8,11 @@ import (
 
 var RetryExhaustedError error = fmt.Errorf("Function never succeeded in Retry")
 
-type RetryableFunc func() (bool, error)
+// RetryableFunc performs an action and returns a bool indicating whether the
+// function is done, or if it should keep retrying, and an erorr which will
+// abort the retry and be returned by the Retry function. The 0-indexed attempt
+// is passed with each call.
+type RetryableFunc func(uint) (bool, error)
 
 // Retry retries a function up to numTries times with exponential backoff.
 // If numTries == 0, retry indefinitely. If interval == 0, Retry will not delay retrying and there will be
@@ -27,7 +31,7 @@ func Retry(initialInterval float64, maxInterval float64, numTries uint, function
 	done := false
 	interval := initialInterval
 	for i := uint(0); !done && (numTries == 0 || i < numTries); i++ {
-		done, err = function()
+		done, err = function(i)
 		if err != nil {
 			return err
 		}

common/retry_test.go

@@ -8,7 +8,7 @@ import (
 func TestRetry(t *testing.T) {
 	numTries := uint(0)
 	// Test that a passing function only gets called once.
-	err := Retry(0, 0, 0, func() (bool, error) {
+	err := Retry(0, 0, 0, func(i uint) (bool, error) {
 		numTries++
 		return true, nil
 	})
@@ -22,7 +22,7 @@ func TestRetry(t *testing.T) {
 	// Test that a failing function gets retried (once in this example).
 	numTries = 0
 	results := []bool{false, true}
-	err = Retry(0, 0, 0, func() (bool, error) {
+	err = Retry(0, 0, 0, func(i uint) (bool, error) {
 		result := results[numTries]
 		numTries++
 		return result, nil
@@ -37,7 +37,7 @@ func TestRetry(t *testing.T) {
 	// Test that a function error gets returned, and the function does not get called again.
 	numTries = 0
 	funcErr := fmt.Errorf("This function had an error!")
-	err = Retry(0, 0, 0, func() (bool, error) {
+	err = Retry(0, 0, 0, func(i uint) (bool, error) {
 		numTries++
 		return false, funcErr
 	})
@@ -51,7 +51,7 @@ func TestRetry(t *testing.T) {
 	// Test when a function exhausts its retries.
 	numTries = 0
 	expectedTries := uint(3)
-	err = Retry(0, 0, expectedTries, func() (bool, error) {
+	err = Retry(0, 0, expectedTries, func(i uint) (bool, error) {
 		numTries++
 		return false, nil
 	})

post-processor/vagrant-cloud/post-processor.go

@@ -152,7 +152,6 @@ func (p *PostProcessor) PostProcess(ui packer.Ui, artifact packer.Artifact) (pac
 			new(stepCreateProvider),
 			new(stepPrepareUpload),
 			new(stepUpload),
-			new(stepVerifyUpload),
 			new(stepReleaseVersion),
 		}
 	} else {

post-processor/vagrant-cloud/step_prepare_upload.go

@@ -2,12 +2,12 @@ package vagrantcloud
 
 import (
 	"fmt"
+
 	"github.com/hashicorp/packer/packer"
 	"github.com/mitchellh/multistep"
 )
 
 type Upload struct {
-	Token      string `json:"token"`
 	UploadPath string `json:"upload_path"`
 }
 
@@ -41,8 +41,6 @@ func (s *stepPrepareUpload) Run(state multistep.StateBag) multistep.StepAction {
 		return multistep.ActionHalt
 	}
 
-	ui.Message(fmt.Sprintf("Box upload prepared with token %s", upload.Token))
-
 	// Save the upload details to the state
 	state.Put("upload", upload)
 

post-processor/vagrant-cloud/step_upload.go

@@ -2,8 +2,9 @@ package vagrantcloud
 
 import (
 	"fmt"
-	"time"
+	"log"
 
+	"github.com/hashicorp/packer/common"
 	"github.com/hashicorp/packer/packer"
 	"github.com/mitchellh/multistep"
 )
@@ -23,34 +24,27 @@ func (s *stepUpload) Run(state multistep.StateBag) multistep.StepAction {
 		"Depending on your internet connection and the size of the box,\n" +
 			"this may take some time")
 
-	var finalErr error
-	for i := 0; i < 3; i++ {
-		if i > 0 {
-			ui.Message(fmt.Sprintf("Uploading box, attempt %d", i+1))
-		}
+	err := common.Retry(10, 10, 3, func(i uint) (bool, error) {
+		ui.Message(fmt.Sprintf("Uploading box, attempt %d", i+1))
 
 		resp, err := client.Upload(artifactFilePath, url)
 		if err != nil {
-			finalErr = err
 			ui.Message(fmt.Sprintf(
 				"Error uploading box! Will retry in 10 seconds. Error: %s", err))
-			time.Sleep(10 * time.Second)
-			continue
+			return false, nil
 		}
 		if resp.StatusCode != 200 {
-			finalErr = fmt.Errorf("bad HTTP status: %d", resp.StatusCode)
+			log.Printf("bad HTTP status: %d", resp.StatusCode)
 			ui.Message(fmt.Sprintf(
 				"Error uploading box! Will retry in 10 seconds. Status: %d",
 				resp.StatusCode))
-			time.Sleep(10 * time.Second)
-			continue
+			return false, nil
 		}
+		return true, nil
+	})
 
-		finalErr = nil
-	}
-
-	if finalErr != nil {
-		state.Put("error", finalErr)
+	if err != nil {
+		state.Put("error", err)
 		return multistep.ActionHalt
 	}