Add backup option to onedb

src/onedb/onedb

@@ -45,6 +45,14 @@ FORCE={
     :description => "Forces the backup even if the DB exists"
 }
 
+BACKUP={
+    :name => "backup",
+    :short => "-b file",
+    :large => "--backup file",
+    :description => "Use this file to store SQL dump",
+    :format => String
+}
+
 ###############################################################################
 # SQLite options
 ###############################################################################
@@ -203,7 +211,7 @@ cmd=CommandParser::CmdParser.new(ARGV) do
                           By default the DB is upgraded to the latest version
     EOT
 
-    command :upgrade , upgrade_desc, [:version, nil] do
+    command :upgrade , upgrade_desc, [:version, nil], :options=>[FORCE,BACKUP] do
         helper = OneDB.new(options)
         helper.upgrade(args[0], options)
     end

src/onedb/onedb.rb

@@ -109,13 +109,7 @@ class OneDB
         if File.exists?(file) && 
                 (max_version == nil || migrator_version <= max_version)
             # At least one upgrade will be executed, make DB backup
-            if ops[:backup]
-                bck_file = ops[:backup]
-            else
-                bck_file = @backend.bck_file
-            end
-
-            @backend.backup(bck_file)
+            backup(ops[:backup], ops)
         end
 
         while File.exists?(file) &&