Add harbormaster.buildplan.search api method

Summary: This revision adds a conduit search method for build plans.  Other api methods (eg: `harbormaster.build.search`) support build plan phid's as a constraint, but they weren't exposed anywhere, so this provides a way to fetch them.

Test Plan:
Used the api console to run some searches.  Output:
```
{
  "data": [
    {
      "id": 1,
      "type": "HMCP",
      "phid": "PHID-HMCP-q2c25wvegzdkxs7gzor6",
      "fields": {
        "name": "my build plan",
        "planStatus": "active",
        "dateCreated": 1538085249,
        "dateModified": 1538085249,
        "policy": {
          "view": "users",
          "edit": "admin"
        }
      },
    {
      "id": 1,
      "type": "HMCP",
      "phid": "PHID-HMCP-q2c25wvegzdkxs7gzor6",
      "fields": {
        "name": "my build plan",
        "status": {
          "value": "active"
        },
        "dateCreated": 1538085249,
        "dateModified": 1538085249,
        "policy": {
          "view": "users",
          "edit": "admin"
        }
      },
      "attachments": {}
    },
    ...
  ],
  "maps": {},
  "query": {
    "queryKey": null
  },
  "cursor": {
    "limit": 100,
    "after": null,
    "before": null,
    "order": null
  }
}
```

Reviewers: epriestley, #blessed_reviewers

Reviewed By: epriestley, #blessed_reviewers

Subscribers: Korvin, yelirekim

Differential Revision: https://secure.phabricator.com/D19769

src/__phutil_library_map__.php

@@ -1326,6 +1326,7 @@ phutil_register_library_map(array(
     'HarbormasterBuildPlanNameNgrams' => 'applications/harbormaster/storage/configuration/HarbormasterBuildPlanNameNgrams.php',
     'HarbormasterBuildPlanPHIDType' => 'applications/harbormaster/phid/HarbormasterBuildPlanPHIDType.php',
     'HarbormasterBuildPlanQuery' => 'applications/harbormaster/query/HarbormasterBuildPlanQuery.php',
+    'HarbormasterBuildPlanSearchAPIMethod' => 'applications/harbormaster/conduit/HarbormasterBuildPlanSearchAPIMethod.php',
     'HarbormasterBuildPlanSearchEngine' => 'applications/harbormaster/query/HarbormasterBuildPlanSearchEngine.php',
     'HarbormasterBuildPlanTransaction' => 'applications/harbormaster/storage/configuration/HarbormasterBuildPlanTransaction.php',
     'HarbormasterBuildPlanTransactionQuery' => 'applications/harbormaster/query/HarbormasterBuildPlanTransactionQuery.php',
@@ -6775,6 +6776,7 @@ phutil_register_library_map(array(
       'PhabricatorPolicyInterface',
       'PhabricatorSubscribableInterface',
       'PhabricatorNgramsInterface',
+      'PhabricatorConduitResultInterface',
       'PhabricatorProjectInterface',
     ),
     'HarbormasterBuildPlanDatasource' => 'PhabricatorTypeaheadDatasource',
@@ -6785,6 +6787,7 @@ phutil_register_library_map(array(
     'HarbormasterBuildPlanNameNgrams' => 'PhabricatorSearchNgrams',
     'HarbormasterBuildPlanPHIDType' => 'PhabricatorPHIDType',
     'HarbormasterBuildPlanQuery' => 'PhabricatorCursorPagedPolicyAwareQuery',
+    'HarbormasterBuildPlanSearchAPIMethod' => 'PhabricatorSearchEngineAPIMethod',
     'HarbormasterBuildPlanSearchEngine' => 'PhabricatorApplicationSearchEngine',
     'HarbormasterBuildPlanTransaction' => 'PhabricatorApplicationTransaction',
     'HarbormasterBuildPlanTransactionQuery' => 'PhabricatorApplicationTransactionQuery',

src/applications/harbormaster/conduit/HarbormasterBuildPlanSearchAPIMethod.php

@@ -0,0 +1,18 @@
+<?php
+
+final class HarbormasterBuildPlanSearchAPIMethod
+  extends PhabricatorSearchEngineAPIMethod {
+
+  public function getAPIMethodName() {
+    return 'harbormaster.buildplan.search';
+  }
+
+  public function newSearchEngine() {
+    return new HarbormasterBuildPlanSearchEngine();
+  }
+
+  public function getMethodSummary() {
+    return pht('Retrieve information about Harbormaster build plans.');
+  }
+
+}

src/applications/harbormaster/storage/configuration/HarbormasterBuildPlan.php

@@ -9,6 +9,7 @@ final class HarbormasterBuildPlan extends HarbormasterDAO
     PhabricatorPolicyInterface,
     PhabricatorSubscribableInterface,
     PhabricatorNgramsInterface,
+    PhabricatorConduitResultInterface,
     PhabricatorProjectInterface {
 
   protected $name;
@@ -207,4 +208,34 @@ final class HarbormasterBuildPlan extends HarbormasterDAO
     );
   }
 
+
+/* -(  PhabricatorConduitResultInterface  )---------------------------------- */
+
+
+  public function getFieldSpecificationsForConduit() {
+    return array(
+      id(new PhabricatorConduitSearchFieldSpecification())
+        ->setKey('name')
+        ->setType('string')
+        ->setDescription(pht('The name of this build plan.')),
+      id(new PhabricatorConduitSearchFieldSpecification())
+        ->setKey('status')
+        ->setType('map<string, wild>')
+        ->setDescription(pht('The current status of this build plan.')),
+    );
+  }
+
+  public function getFieldValuesForConduit() {
+    return array(
+      'name' => $this->getName(),
+      'status' => array(
+        'value' => $this->getPlanStatus(),
+      ),
+    );
+  }
+
+  public function getConduitSearchAttachments() {
+    return array();
+  }
+
 }