When creating a repository in Diffusion, prompt for "Create" or "Import" first

Summary:
Ref T2230. This will need some more refinement, but basically it adds a "Create" vs "Import" step before we go through the paged workflow.

  - If you choose "Create", we skip the remote URI / auth stuff, and then set the "hosted" flag.
  - If you choose "Import", we do what we do now.

Test Plan: Created and imported repos.

Reviewers: btrahan

Reviewed By: btrahan

CC: aran

Maniphest Tasks: T2230

Differential Revision: https://secure.phabricator.com/D7475

src/applications/diffusion/controller/DiffusionRepositoryEditMainController.php

@@ -52,9 +52,12 @@ final class DiffusionRepositoryEditMainController
     $policy_properties =
       $this->buildPolicyProperties($repository, $policy_actions);
 
-    $remote_properties = $this->buildRemoteProperties(
-      $repository,
-      $this->buildRemoteActions($repository));
+    $remote_properties = null;
+    if (!$repository->isHosted()) {
+      $remote_properties = $this->buildRemoteProperties(
+        $repository,
+        $this->buildRemoteActions($repository));
+    }
 
     $encoding_actions = $this->buildEncodingActions($repository);
     $encoding_properties =
@@ -115,8 +118,11 @@ final class DiffusionRepositoryEditMainController
       ->setHeader($header)
       ->addPropertyList($basic_properties)
       ->addPropertyList($policy_properties)
-      ->addPropertyList($hosting_properties)
-      ->addPropertyList($remote_properties);
+      ->addPropertyList($hosting_properties);
+
+    if ($remote_properties) {
+      $obj_box->addPropertyList($remote_properties);
+    }
 
     if ($local_properties) {
       $obj_box->addPropertyList($local_properties);