Add the "Extending Phabricator" config group.

Summary: Refs T2255 and takes care of the "EXTENDING PHABRICATOR" group thereof.

Test Plan: Looked at each of the new options.

Reviewers: epriestley, btrahan

Reviewed By: epriestley

CC: aran, Korvin

Maniphest Tasks: T2255

Differential Revision: https://secure.phabricator.com/D4325

src/__phutil_library_map__.php

@@ -763,6 +763,7 @@ phutil_register_library_map(array(
     'PhabricatorEventEngine' => 'infrastructure/events/PhabricatorEventEngine.php',
     'PhabricatorEventType' => 'infrastructure/events/constant/PhabricatorEventType.php',
     'PhabricatorExampleEventListener' => 'infrastructure/events/PhabricatorExampleEventListener.php',
+    'PhabricatorExtendingPhabricatorConfigOptions' => 'applications/config/option/PhabricatorExtendingPhabricatorConfigOptions.php',
     'PhabricatorFacebookConfigOptions' => 'applications/config/option/PhabricatorFacebookConfigOptions.php',
     'PhabricatorFactAggregate' => 'applications/fact/storage/PhabricatorFactAggregate.php',
     'PhabricatorFactChartController' => 'applications/fact/controller/PhabricatorFactChartController.php',
@@ -2103,6 +2104,7 @@ phutil_register_library_map(array(
     'PhabricatorEvent' => 'PhutilEvent',
     'PhabricatorEventType' => 'PhutilEventType',
     'PhabricatorExampleEventListener' => 'PhutilEventListener',
+    'PhabricatorExtendingPhabricatorConfigOptions' => 'PhabricatorApplicationConfigOptions',
     'PhabricatorFacebookConfigOptions' => 'PhabricatorApplicationConfigOptions',
     'PhabricatorFactAggregate' => 'PhabricatorFactDAO',
     'PhabricatorFactChartController' => 'PhabricatorFactController',

src/applications/config/option/PhabricatorExtendingPhabricatorConfigOptions.php

@@ -0,0 +1,43 @@
+<?php
+
+final class PhabricatorExtendingPhabricatorConfigOptions
+  extends PhabricatorApplicationConfigOptions {
+
+  public function getName() {
+    return pht("Extending Phabricator");
+  }
+
+  public function getDescription() {
+    return pht("Make Phabricator even cooler!");
+  }
+
+  public function getOptions() {
+    return array(
+      $this->newOption('load-libraries', 'list<string>', null)
+        ->setSummary(pht("Paths to additional phutil libraries to load."))
+        ->addExample('/srv/our-sekrit-libs/sekrit-phutil', 'Valid Setting'),
+      $this->newOption('events.listeners', 'list<string>', null)
+        ->setSummary(
+          pht("Listeners receive callbacks when interesting things occur."))
+        ->setDescription(
+          pht(
+            "You can respond to various application events by installing ".
+            "listeners, which will receive callbacks when interesting things ".
+            "occur. Specify a list of classes which extend ".
+            "PhabricatorEventListener here."))
+        ->addExample('MyEventListener', 'Valid Setting'),
+      $this->newOption(
+        'celerity.resource-path',
+        'string',
+        '__celerity_resource_map__.php')
+        ->setSummary(
+          pht("Custom celerity resource map."))
+        ->setDescription(
+          pht(
+            "Path to custom celerity resource map relative to ".
+            "'phabricator/src'. See also `scripts/celerity_mapper.php`."))
+        ->addExample('local/my_celerity_map.php', 'Valid Setting'),
+    );
+  }
+
+}