Allow to resign from an accepted revision when you didn't accept the diff.

Summary: Girish wants to be able to do this.

Test Plan: Checked that I had the option in my sandbox on an accepted diff.

Reviewers: epriestley, jungejason

Reviewed By: jungejason

CC: aran, jungejason, tuomaspelkonen, epriestley

Differential Revision: 1020

src/applications/differential/controller/revisionview/DifferentialRevisionViewController.php

@@ -368,6 +368,7 @@ class DifferentialRevisionViewController extends DifferentialController {
     $viewer_phid = $this->getRequest()->getUser()->getPHID();
     $viewer_is_owner = ($viewer_phid == $revision->getAuthorPHID());
     $viewer_is_reviewer = in_array($viewer_phid, $revision->getReviewers());
+    $viewer_did_accept = ($viewer_phid === $revision->loadReviewedBy());
 
     if ($viewer_is_owner) {
       switch ($revision->getStatus()) {
@@ -403,6 +404,8 @@ class DifferentialRevisionViewController extends DifferentialController {
           break;
         case DifferentialRevisionStatus::ACCEPTED:
           $actions[DifferentialAction::ACTION_REJECT] = true;
+          $actions[DifferentialAction::ACTION_RESIGN] =
+            $viewer_is_reviewer && !$viewer_did_accept;
           break;
         case DifferentialRevisionStatus::COMMITTED:
         case DifferentialRevisionStatus::ABANDONED:

src/applications/differential/field/specification/reviewedby/DifferentialReviewedByFieldSpecification.php

@@ -24,28 +24,12 @@ final class DifferentialReviewedByFieldSpecification
   protected function didSetRevision() {
     $this->reviewedBy = array();
     $revision = $this->getRevision();
-
+    $reviewer = $revision->loadReviewedBy();
-    $status = $revision->getStatus();
-    if ($status == DifferentialRevisionStatus::ACCEPTED ||
-        $status == DifferentialRevisionStatus::COMMITTED) {
-      $reviewer = null;
-      $comments = $revision->loadComments();
-      foreach ($comments as $comment) {
-        $action = $comment->getAction();
-        if ($action == DifferentialAction::ACTION_ACCEPT) {
-          $reviewer = $comment->getAuthorPHID();
-        } else if ($action == DifferentialAction::ACTION_REJECT ||
-                   $action == DifferentialAction::ACTION_ABANDON ||
-                   $action == DifferentialAction::ACTION_RETHINK) {
-          $reviewer = null;
-        }
-      }
 
     if ($reviewer) {
       $this->reviewedBy = array($reviewer);
     }
   }
-  }
 
   public function shouldAppearOnCommitMessage() {
     return true;

src/applications/differential/field/specification/reviewedby/__init__.php

@@ -6,8 +6,6 @@
 
 
 
-phutil_require_module('phabricator', 'applications/differential/constants/action');
-phutil_require_module('phabricator', 'applications/differential/constants/revisionstatus');
 phutil_require_module('phabricator', 'applications/differential/field/specification/base');
 
 

src/applications/differential/storage/revision/DifferentialRevision.php

@@ -165,4 +165,25 @@ class DifferentialRevision extends DifferentialDAO {
   public function getUnsubscribedPHIDs() {
     return array_keys($this->getUnsubscribed());
   }
+
+  public function loadReviewedBy() {
+    $reviewer = null;
+
+    if ($this->status == DifferentialRevisionStatus::ACCEPTED ||
+        $this->status == DifferentialRevisionStatus::COMMITTED) {
+      $comments = $this->loadComments();
+      foreach ($comments as $comment) {
+        $action = $comment->getAction();
+        if ($action == DifferentialAction::ACTION_ACCEPT) {
+          $reviewer = $comment->getAuthorPHID();
+        } else if ($action == DifferentialAction::ACTION_REJECT ||
+                   $action == DifferentialAction::ACTION_ABANDON ||
+                   $action == DifferentialAction::ACTION_RETHINK) {
+          $reviewer = null;
+        }
+      }
+    }
+
+    return $reviewer;
+  }
 }

src/applications/differential/storage/revision/__init__.php

@@ -6,6 +6,8 @@
 
 
 
+phutil_require_module('phabricator', 'applications/differential/constants/action');
+phutil_require_module('phabricator', 'applications/differential/constants/revisionstatus');
 phutil_require_module('phabricator', 'applications/differential/storage/base');
 phutil_require_module('phabricator', 'applications/differential/storage/comment');
 phutil_require_module('phabricator', 'applications/differential/storage/diff');