lib/dreamback/backup.rb in dreamback-0.0.7 vs lib/dreamback/backup.rb in dreamback-0.0.8

@@ -15,11 +15,11 @@
     end
 
     # Rotate out the backups that are past our limit
     # @returns [String] name of the most recent folder to link against
     def self.rotate_backups
-      backup_to_link = ""
+      backup_to_link = nil
       Net::SFTP.start(Dreamback.settings[:backup_server], Dreamback.settings[:backup_server_user]) do |sftp|
         # Create the backup folder if it doesn't exist
         backup_folder_exists = false
         begin
           sftp.stat!(BACKUP_FOLDER) do |response|
@@ -37,9 +37,10 @@
             backup_folders << [ entry.name, entry.name.split(".")[1].to_i ] if entry.name.include?("dreamback")
             backup_folders.sort! {|a,b| b <=> a}
           end
         end
 
+        # Don't rotate if there aren't any previous folders
         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")
\ No newline at end of file