lib/dreamback/backup.rb in dreamback-0.0.6 vs lib/dreamback/backup.rb in dreamback-0.0.7

@@ -37,25 +37,27 @@
             backup_folders << [ entry.name, entry.name.split(".")[1].to_i ] if entry.name.include?("dreamback")
             backup_folders.sort! {|a,b| b <=> a}
           end
         end
 
-        # Get yesterday's folder to link against
-        backup_to_link = backup_folders.first[0]
-        # If this would link us to the same folder, don't do that. Try yesterday's instead.
-        if backup_to_link.eql? "dreamback." + Date.today.strftime("%Y%m%d")
-          backup_to_link = "dreamback." + (Date.today - 1).strftime("%Y%m%d")
-        end
+        unless backup_folders.empty?
+          # Get yesterday's folder to link against
+          backup_to_link = backup_folders.first[0]
+          # If this would link us to the same folder, don't do that. Try yesterday's instead.
+          if backup_to_link.eql? "dreamback." + Date.today.strftime("%Y%m%d")
+            backup_to_link = "dreamback." + (Date.today - 1).strftime("%Y%m%d")
+          end
 
-        # Delete any folders older than our limit
-        if Dreamback.settings[:days_to_keep]
-          folders_to_delete = rotate_daily(backup_folders)
-        elsif Dreamback.settings[:keep_time_machine]
-          folders_to_delete = rotate_time_machine(backup_folders)[:delete]
-        else
-          folders_to_delete = nil
+          # Delete any folders older than our limit
+          if Dreamback.settings[:days_to_keep]
+            folders_to_delete = rotate_daily(backup_folders)
+          elsif Dreamback.settings[:keep_time_machine]
+            folders_to_delete = rotate_time_machine(backup_folders)[:delete]
+          else
+            folders_to_delete = nil
+          end
+          rsync_delete(folders_to_delete)
         end
-        rsync_delete(folders_to_delete)
       end
 
       backup_to_link
     end
 
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