command/push: allow specifying a -name param for push target

command/push.go

@@ -34,6 +34,7 @@ type pushUploadFn func(
 func (c *PushCommand) Run(args []string) int {
 	var token string
 	var message string
+	var name string
 	var create bool
 
 	f := flag.NewFlagSet("push", flag.ContinueOnError)
@@ -41,6 +42,7 @@ func (c *PushCommand) Run(args []string) int {
 	f.StringVar(&token, "token", "", "token")
 	f.StringVar(&message, "m", "", "message")
 	f.StringVar(&message, "message", "", "message")
+	f.StringVar(&name, "name", "", "name")
 	f.BoolVar(&create, "create", false, "create (deprecated)")
 	if err := f.Parse(args); err != nil {
 		return 1
@@ -65,11 +67,17 @@ func (c *PushCommand) Run(args []string) int {
 		return 1
 	}
 
+	// If we didn't pass name from the CLI, use the template
+	if name == "" {
+		name = tpl.Push.Name
+	}
+
 	// Validate some things
-	if tpl.Push.Name == "" {
+	if name == "" {
 		c.Ui.Error(fmt.Sprintf(
 			"The 'push' section must be specified in the template with\n" +
-				"at least the 'name' option set."))
+			"at least the 'name' option set. Alternatively, you can pass the\n" +
+			"name parameter from the CLI."))
 		return 1
 	}
 
@@ -245,6 +253,9 @@ Options:
   -m, -message=<detail>    A message to identify the purpose or changes in this
                            Packer template much like a VCS commit message
 
+  -name=<name>             The destination build in Atlas. This is in a format
+                           "username/name".
+
   -token=<token>           The access token to use to when uploading
 `
 

command/push_test.go

@@ -120,6 +120,42 @@ func TestPush_noName(t *testing.T) {
 	}
 }
 
+func TestPush_cliName(t *testing.T) {
+	var actual []string
+	var actualOpts *uploadOpts
+	uploadFn := func(r io.Reader, opts *uploadOpts) (<-chan struct{}, <-chan error, error) {
+		actual = testArchive(t, r)
+		actualOpts = opts
+
+		doneCh := make(chan struct{})
+		close(doneCh)
+		return doneCh, nil, nil
+	}
+
+	c := &PushCommand{
+		Meta:     testMeta(t),
+		uploadFn: uploadFn,
+	}
+
+	args := []string{
+		"-name=foo/bar",
+		filepath.Join(testFixture("push-no-name"), "template.json"),
+	}
+
+	if code := c.Run(args); code != 0 {
+		fatalCommand(t, c.Meta)
+	}
+
+	expected := []string{
+		archiveTemplateEntry,
+		"template.json",
+	}
+
+	if !reflect.DeepEqual(actual, expected) {
+		t.Fatalf("bad: %#v", actual)
+	}
+}
+
 func TestPush_uploadError(t *testing.T) {
 	uploadFn := func(r io.Reader, opts *uploadOpts) (<-chan struct{}, <-chan error, error) {
 		return nil, nil, fmt.Errorf("bad")

website/source/docs/command-line/push.html.markdown

@@ -33,6 +33,9 @@ must be completed within the template.
   service such as Atlas. This can also be specified within the push
   configuration in the template.
 
+* `-name` - The name of the build in the service. This typically
+  looks like `hashicorp/precise64`.
+
 ## Examples
 
 Push a Packer template: