Maniphest - add conduit method to get status information

Summary: Ref T4938. `arc close` needs to know about custom statuses and this conduit method is step 1 of letting it know

Test Plan: See next diff, which works!

Reviewers: epriestley

Reviewed By: epriestley

Subscribers: epriestley, Korvin

Maniphest Tasks: T4938

Differential Revision: https://secure.phabricator.com/D8937

src/__phutil_library_map__.php

@@ -201,6 +201,7 @@ phutil_register_library_map(array(
     'ConduitAPI_maniphest_gettasktransactions_Method' => 'applications/maniphest/conduit/ConduitAPI_maniphest_gettasktransactions_Method.php',
     'ConduitAPI_maniphest_info_Method' => 'applications/maniphest/conduit/ConduitAPI_maniphest_info_Method.php',
     'ConduitAPI_maniphest_query_Method' => 'applications/maniphest/conduit/ConduitAPI_maniphest_query_Method.php',
+    'ConduitAPI_maniphest_querystatuses_Method' => 'applications/maniphest/conduit/ConduitAPI_maniphest_querystatuses_Method.php',
     'ConduitAPI_maniphest_update_Method' => 'applications/maniphest/conduit/ConduitAPI_maniphest_update_Method.php',
     'ConduitAPI_nuance_Method' => 'applications/nuance/conduit/ConduitAPI_nuance_Method.php',
     'ConduitAPI_nuance_createitem_Method' => 'applications/nuance/conduit/ConduitAPI_nuance_createitem_Method.php',
@@ -2814,6 +2815,7 @@ phutil_register_library_map(array(
     'ConduitAPI_maniphest_gettasktransactions_Method' => 'ConduitAPI_maniphest_Method',
     'ConduitAPI_maniphest_info_Method' => 'ConduitAPI_maniphest_Method',
     'ConduitAPI_maniphest_query_Method' => 'ConduitAPI_maniphest_Method',
+    'ConduitAPI_maniphest_querystatuses_Method' => 'ConduitAPI_maniphest_Method',
     'ConduitAPI_maniphest_update_Method' => 'ConduitAPI_maniphest_Method',
     'ConduitAPI_nuance_Method' => 'ConduitAPIMethod',
     'ConduitAPI_nuance_createitem_Method' => 'ConduitAPI_nuance_Method',

src/applications/maniphest/conduit/ConduitAPI_maniphest_querystatuses_Method.php

@@ -0,0 +1,35 @@
+<?php
+
+final class ConduitAPI_maniphest_querystatuses_Method
+  extends ConduitAPI_maniphest_Method {
+
+  public function getMethodDescription() {
+    return "Retrieve information about possible Maniphest Task status values.";
+  }
+
+  public function defineParamTypes() {
+    return array();
+  }
+
+  public function defineReturnType() {
+    return 'nonempty dict<string, wild>';
+  }
+
+  public function defineErrorTypes() {
+    return array();
+  }
+
+  protected function execute(ConduitAPIRequest $request) {
+    $results = array(
+      'defaultStatus' => ManiphestTaskStatus::getDefaultStatus(),
+      'defaultClosedStatus' => ManiphestTaskStatus::getDefaultClosedStatus(),
+      'duplicateStatus' => ManiphestTaskStatus::getDuplicateStatus(),
+      'openStatuses' => ManiphestTaskStatus::getOpenStatusConstants(),
+      'closedStatuses' => ManiphestTaskStatus::getClosedStatusConstants(),
+      'allStatuses' => array_keys(ManiphestTaskStatus::getTaskStatusMap()),
+      'statusMap' => ManiphestTaskStatus::getTaskStatusMap()
+    );
+    return $results;
+  }
+
+}