Diffusion - move build refs to occur over Conduit

Summary: Ref T2784.

Test Plan: loaded up a git commit with refs and they showed up! loaded up a git commit without revs and nothing showed up.

Reviewers: epriestley

Reviewed By: epriestley

CC: aran, Korvin

Maniphest Tasks: T2784

Differential Revision: https://secure.phabricator.com/D5957

src/__phutil_library_map__.php

@@ -157,6 +157,7 @@ phutil_register_library_map(array(
     'ConduitAPI_diffusion_getrecentcommitsbypath_Method' => 'applications/diffusion/conduit/ConduitAPI_diffusion_getrecentcommitsbypath_Method.php',
     'ConduitAPI_diffusion_lastmodifiedquery_Method' => 'applications/diffusion/conduit/ConduitAPI_diffusion_lastmodifiedquery_Method.php',
     'ConduitAPI_diffusion_rawdiffquery_Method' => 'applications/diffusion/conduit/ConduitAPI_diffusion_rawdiffquery_Method.php',
+    'ConduitAPI_diffusion_refsquery_Method' => 'applications/diffusion/conduit/ConduitAPI_diffusion_refsquery_Method.php',
     'ConduitAPI_diffusion_searchquery_Method' => 'applications/diffusion/conduit/ConduitAPI_diffusion_searchquery_Method.php',
     'ConduitAPI_diffusion_stablecommitnamequery_Method' => 'applications/diffusion/conduit/ConduitAPI_diffusion_stablecommitnamequery_Method.php',
     'ConduitAPI_diffusion_tagsquery_Method' => 'applications/diffusion/conduit/ConduitAPI_diffusion_tagsquery_Method.php',
@@ -1961,6 +1962,7 @@ phutil_register_library_map(array(
     'ConduitAPI_diffusion_getrecentcommitsbypath_Method' => 'ConduitAPI_diffusion_Method',
     'ConduitAPI_diffusion_lastmodifiedquery_Method' => 'ConduitAPI_diffusion_abstractquery_Method',
     'ConduitAPI_diffusion_rawdiffquery_Method' => 'ConduitAPI_diffusion_abstractquery_Method',
+    'ConduitAPI_diffusion_refsquery_Method' => 'ConduitAPI_diffusion_abstractquery_Method',
     'ConduitAPI_diffusion_searchquery_Method' => 'ConduitAPI_diffusion_abstractquery_Method',
     'ConduitAPI_diffusion_stablecommitnamequery_Method' => 'ConduitAPI_diffusion_abstractquery_Method',
     'ConduitAPI_diffusion_tagsquery_Method' => 'ConduitAPI_diffusion_abstractquery_Method',

src/applications/diffusion/conduit/ConduitAPI_diffusion_refsquery_Method.php

@@ -0,0 +1,57 @@
+<?php
+
+/**
+ * @group conduit
+ */
+final class ConduitAPI_diffusion_refsquery_Method
+  extends ConduitAPI_diffusion_abstractquery_Method {
+
+  public function getMethodDescription() {
+    return
+      'Query a git repository for ref information at a specific commit.';
+  }
+
+  public function defineReturnType() {
+    return 'array';
+  }
+
+  protected function defineCustomParamTypes() {
+    return array(
+      'commit' => 'required string',
+    );
+  }
+
+  protected function getGitResult(ConduitAPIRequest $request) {
+    $drequest = $this->getDiffusionRequest();
+    $repository = $drequest->getRepository();
+    $commit = $request->getValue('commit');
+
+    list($stdout) = $repository->execxLocalCommand(
+      'log --format=%s -n 1 %s --',
+      '%d',
+      $commit);
+
+    // %d, gives a weird output format
+    // similar to (remote/one, remote/two, remote/three)
+    $refs = trim($stdout, "() \n");
+    if (!$refs) {
+      return null;
+    }
+    $refs = explode(',', $refs);
+    $refs = array_map('trim', $refs);
+
+    $ref_links = array();
+    foreach ($refs as $ref) {
+      $ref_links[] = array(
+        'ref' => $ref,
+        'href' => $drequest->generateURI(
+          array(
+            'action'  => 'browse',
+            'branch'  => $ref,
+          )));
+    }
+
+    return $ref_links;
+  }
+
+}

src/applications/diffusion/controller/DiffusionCommitController.php

@@ -902,44 +902,23 @@ final class DiffusionCommitController extends DiffusionController {
   }
 
   private function buildRefs(DiffusionRequest $request) {
-    // Not turning this into a proper Query class since it's pretty simple,
+    // this is git-only, so save a conduit round trip and just get out of
-    // one-off, and Git-specific.
+    // here if the repository isn't git
-
     $type_git = PhabricatorRepositoryType::REPOSITORY_TYPE_GIT;
-
     $repository = $request->getRepository();
     if ($repository->getVersionControlSystem() != $type_git) {
       return null;
     }
 
-    list($stdout) = $repository->execxLocalCommand(
+    $results = $this->callConduitWithDiffusionRequest(
-      'log --format=%s -n 1 %s --',
+      'diffusion.refsquery',
-      '%d',
+      array('commit' => $request->getCommit()));
-      $request->getCommit());
-
-    // %d, gives a weird output format
-    // similar to (remote/one, remote/two, remote/three)
-    $refs = trim($stdout, "() \n");
-    if (!$refs) {
-        return null;
-    }
-    $refs = explode(',', $refs);
-    $refs = array_map('trim', $refs);
-
     $ref_links = array();
-    foreach ($refs as $ref) {
+    foreach ($results as $ref_data) {
-      $ref_links[] = phutil_tag(
+      $ref_links[] = phutil_tag('a',
-        'a',
+        array('href' => $ref_data['href']),
-        array(
+        $ref_data['ref']);
-          'href' => $request->generateURI(
-            array(
-              'action'  => 'browse',
-              'branch'  => $ref,
-            )),
-        ),
-        $ref);
     }
-
     return phutil_implode_html(', ', $ref_links);
   }