Add default branch, description, and metrics (commit count, recent commit) to "diffusion.repository.search"

Summary: Fixes T13430. Provide more information about repositories in "diffusion.repository.search".

Test Plan: Used API console to call method (with new "metrics" attachment), reviewed output. Saw new fields returned.

Maniphest Tasks: T13430

Differential Revision: https://secure.phabricator.com/D20862

src/__phutil_library_map__.php

@@ -996,6 +996,7 @@ phutil_register_library_map(array(
     'DiffusionRepositoryManagementOtherPanelGroup' => 'applications/diffusion/management/DiffusionRepositoryManagementOtherPanelGroup.php',
     'DiffusionRepositoryManagementPanel' => 'applications/diffusion/management/DiffusionRepositoryManagementPanel.php',
     'DiffusionRepositoryManagementPanelGroup' => 'applications/diffusion/management/DiffusionRepositoryManagementPanelGroup.php',
+    'DiffusionRepositoryMetricsSearchEngineAttachment' => 'applications/diffusion/engineextension/DiffusionRepositoryMetricsSearchEngineAttachment.php',
     'DiffusionRepositoryPath' => 'applications/diffusion/data/DiffusionRepositoryPath.php',
     'DiffusionRepositoryPoliciesManagementPanel' => 'applications/diffusion/management/DiffusionRepositoryPoliciesManagementPanel.php',
     'DiffusionRepositoryProfilePictureController' => 'applications/diffusion/controller/DiffusionRepositoryProfilePictureController.php',
@@ -6964,6 +6965,7 @@ phutil_register_library_map(array(
     'DiffusionRepositoryManagementOtherPanelGroup' => 'DiffusionRepositoryManagementPanelGroup',
     'DiffusionRepositoryManagementPanel' => 'Phobject',
     'DiffusionRepositoryManagementPanelGroup' => 'Phobject',
+    'DiffusionRepositoryMetricsSearchEngineAttachment' => 'PhabricatorSearchEngineAttachment',
     'DiffusionRepositoryPath' => 'Phobject',
     'DiffusionRepositoryPoliciesManagementPanel' => 'DiffusionRepositoryManagementPanel',
     'DiffusionRepositoryProfilePictureController' => 'DiffusionController',

src/applications/diffusion/engineextension/DiffusionRepositoryMetricsSearchEngineAttachment.php

@@ -0,0 +1,41 @@
+<?php
+
+final class DiffusionRepositoryMetricsSearchEngineAttachment
+  extends PhabricatorSearchEngineAttachment {
+
+  public function getAttachmentName() {
+    return pht('Repository Metrics');
+  }
+
+  public function getAttachmentDescription() {
+    return pht(
+      'Get metrics (like commit count and most recent commit) for each '.
+      'repository.');
+  }
+
+  public function willLoadAttachmentData($query, $spec) {
+    $query
+      ->needCommitCounts(true)
+      ->needMostRecentCommits(true);
+  }
+
+  public function getAttachmentForObject($object, $data, $spec) {
+    $commit = $object->getMostRecentCommit();
+    if ($commit !== null) {
+      $recent_commit = $commit->getFieldValuesForConduit();
+    } else {
+      $recent_commit = null;
+    }
+
+    $commit_count = $object->getCommitCount();
+    if ($commit_count !== null) {
+      $commit_count = (int)$commit_count;
+    }
+
+    return array(
+      'commitCount' => $commit_count,
+      'recentCommit' => $recent_commit,
+    );
+  }
+
+}

src/applications/repository/query/PhabricatorRepositoryQuery.php

@@ -215,6 +215,8 @@ final class PhabricatorRepositoryQuery
         $commits = id(new DiffusionCommitQuery())
           ->setViewer($this->getViewer())
           ->withIDs($commit_ids)
+          ->needCommitData(true)
+          ->needIdentities(true)
           ->execute();
       } else {
         $commits = array();

src/applications/repository/storage/PhabricatorRepository.php

@@ -2757,6 +2757,14 @@ final class PhabricatorRepository extends PhabricatorRepositoryDAO
         ->setDescription(
           pht(
             'The "Fetch" and "Permanent Ref" rules for this repository.')),
+      id(new PhabricatorConduitSearchFieldSpecification())
+        ->setKey('defaultBranch')
+        ->setType('string?')
+        ->setDescription(pht('Default branch name.')),
+      id(new PhabricatorConduitSearchFieldSpecification())
+        ->setKey('description')
+        ->setType('remarkup')
+        ->setDescription(pht('Repository description.')),
     );
   }
 
@@ -2769,6 +2777,11 @@ final class PhabricatorRepository extends PhabricatorRepositoryDAO
     $track_rules = $this->getStringListForConduit($track_rules);
     $permanent_rules = $this->getStringListForConduit($permanent_rules);
 
+    $default_branch = $this->getDefaultBranch();
+    if (!strlen($default_branch)) {
+      $default_branch = null;
+    }
+
     return array(
       'name' => $this->getName(),
       'vcs' => $this->getVersionControlSystem(),
@@ -2782,6 +2795,10 @@ final class PhabricatorRepository extends PhabricatorRepositoryDAO
         'trackRules' => $track_rules,
         'permanentRefRules' => $permanent_rules,
       ),
+      'defaultBranch' => $default_branch,
+      'description' => array(
+        'raw' => (string)$this->getDetail('description'),
+      ),
     );
   }
 
@@ -2804,6 +2821,8 @@ final class PhabricatorRepository extends PhabricatorRepositoryDAO
     return array(
       id(new DiffusionRepositoryURIsSearchEngineAttachment())
         ->setAttachmentKey('uris'),
+      id(new DiffusionRepositoryMetricsSearchEngineAttachment())
+        ->setAttachmentKey('metrics'),
     );
   }