+pushd "$dir" &>/dev/null
+exit_on_error "changing to directory: $dir"
+tempfile=$(generate_rev_ctrl_filelist)
+popd &>/dev/null
+
+perform_revctrl_action_on_file "$tempfile" show_active_branch
+exit_on_error "performing revision control action show_active_branch on: $tempfile"
+
+rm "$tempfile"