From 41f0ed29145c43c99167472a4ff58b367ef08ca1 Mon Sep 17 00:00:00 2001
From: Marco Villegas <marvil07@gmail.com>
Date: Wed, 28 Sep 2011 00:50:05 -0500
Subject: [PATCH] Issue #493074 by boombatower, marvil07 | dww: Back-link to
 the commit as a comment on the related issue.

---
 versioncontrol_project.module |   55 ++++++++++++++++++++++++++++++++++++++++-
 1 files changed, 54 insertions(+), 1 deletions(-)

diff --git a/versioncontrol_project.module b/versioncontrol_project.module
index dc8d11e..18155e8 100644
--- a/versioncontrol_project.module
+++ b/versioncontrol_project.module
@@ -499,7 +499,7 @@ function versioncontrol_project_get_project_maintainers($repo_id) {
  * TODO This should be moved to be tied to hooks notifying that history syncs
  * are happening, rather than the individual entity insert.
  */
-function versioncontrol_project_versioncontrol_entity_commit_insert($operation) {
+function versioncontrol_project_versioncontrol_entity_commit_insert(VersioncontrolOperation $operation) {
   if (isset($operation->repo_id)) {
     // invalidate block cache for maintainers block
     $project = versioncontrol_project_project_load($operation->repo_id);
@@ -508,6 +508,59 @@ function versioncontrol_project_versioncontrol_entity_commit_insert($operation)
       _versioncontrol_project_block_cache_set($cid, NULL);
     }
   }
+
+  // Look for a commit operation being inserted that has an issue reference in
+  // the commit message to a valid project issue node.
+  if ($operation->type == VERSIONCONTROL_OPERATION_COMMIT && preg_match_all('/#(\d+)\b/', $operation->message, $matches, PREG_SET_ORDER)) {
+    // Allow for multiple issue references to be made in a single commit.
+    foreach ($matches as $match) {
+      if (($node = node_load($match[1])) && $node->type == 'project_issue') {
+        // Build project_issue followup changes and t() parameters for comment.
+        $changes = array(
+          'nid' => $node->nid,
+        );
+        $url_handler = $operation->repository->getUrlHandler();
+        $label_names = array();
+        foreach ($operation->labels as $label) {
+          $label_names = $label->name;
+        }
+        $placeholders = array(
+          '!revision' => $url_handler->getCommitViewUrl($operation->revision),
+          '@labels' => implode(', ', $label_names),
+          '@message' => $operation->message,
+        );
+
+        // If the Drupal user is known then format the author as a link and post
+        // the comment as the detected user. Otherwise format the author as the
+        // VCS committer without a link and post as the auto-followup user.
+        if ($operation->committer_uid) {
+          $committer = new stdClass();
+          $committer->uid = $operation->committer_uid;
+          $committer->name = check_plain($operation->committer);
+          $placeholders['!committer'] = theme('username', $committer);
+          if ($operation->author_uid == $operation->committer_uid) {
+            $changes['comment'] = t('Commit !revision on @labels by !committer: <pre>@message</pre>', $placeholders);
+          }
+          else {
+            $author = new stdClass();
+            $author->uid = $operation->author_uid;
+            $author->name = check_plain($operation->author);
+            $placeholders['!author'] = theme('username', $author);
+            $changes['comment'] = t('Commit !revision on @labels authored by !author, committed by !committer: <pre>@message</pre>', $placeholders);
+          }
+
+          $changes['uid'] = $operation->committer_uid;
+          project_issue_add_followup($changes);
+        }
+        else {
+          $placeholders['!committer'] = $operation->committer;
+          $changes['comment'] = t('Commit !revision on @labels by !committer: <pre>@message</pre>"', $placeholders);
+
+          project_issue_add_auto_followup($changes);
+        }
+      }
+    }
+  }
 }
 
 /**
-- 
1.7.6.3