Provide a list of attribute names which changed, closes #54

ofborg/src/tasks/massrebuilder.rs

@@ -466,8 +466,21 @@ impl<E: stats::SysEvents> worker::SimpleWorker for MassRebuildWorker<E> {
 
             let mut rebuild_tags = RebuildTagger::new();
             if let Some(attrs) = rebuildsniff.calculate_rebuild() {
+                let gist_url = make_gist(
+                    &gists,
+                    String::from("Changed Paths"),
+                    None,
+                    attrs
+                        .iter()
+                        .map(|attr| format!("{}\t{}", &attr.architecture, &attr.package))
+                        .collect::<Vec<String>>()
+                        .join("\n"),
+                );
+
                 rebuild_tags.parse_attrs(attrs);
+                overall_status.set_url(gist_url);
             }
+
             update_labels(
                 &issue,
                 rebuild_tags.tags_to_add(),