Summarize the number of inline comments when publishing a review

We always include a short message indicating the number of draft
comments that were published, this triggers Gerrit to always display
a top-level change message even though no scores were modified and
no cover letter was written by the reviewer.

Bug: issue 396
Change-Id: I1f7a1854b1a12d0ff5e5d27a5e077247b0fb4c71

gerrit-server/src/main/java/com/google/gerrit/server/patch/PublishComments.java

@@ -220,6 +220,8 @@ public class PublishComments implements Callable<VoidResult> {
 
     db.patchSetApprovals().update(upd);
     db.patchSetApprovals().insert(ins);
+
+    summarizeInlineComments(msgbuf);
     message(msgbuf.toString());
   }
 
@@ -298,4 +300,17 @@ public class PublishComments implements Callable<VoidResult> {
 
     hooks.doCommentAddedHook(change, user.getAccount(), patchSet, messageText, changed);
   }
+
+  private void summarizeInlineComments(StringBuilder in) {
+    if (!drafts.isEmpty()) {
+      if (in.length() != 0) {
+        in.append("\n\n");
+      }
+      if (drafts.size() == 1) {
+        in.append("(1 inline comment)");
+      } else {
+        in.append("(" + drafts.size() + " inline comments)");
+      }
+    }
+  }
 }