gzip.rb in backup-3.0.24

- old
+ new
@@ -3,44 +3,43 @@
 module Backup
   module Compressor
     class Gzip < Base
 
       ##
-      # Tells Backup::Compressor::Gzip to compress
-      # better rather than faster when set to true
-      attr_accessor :best
+      # Specify the level of compression to use.
+      #
+      # Values should be a single digit from 1 to 9.
+      # Note that setting the level to either extreme may or may not
+      # give the desired result. Be sure to check the documentation
+      # for the compressor being used.
+      #
+      # The default `level` is 6.
+      attr_accessor :level
 
-      ##
-      # Tells Backup::Compressor::Gzip to compress
-      # faster rather than better when set to true
-      attr_accessor :fast
+      attr_deprecate :fast, :version => '3.0.24',
+                     :replacement => :level,
+                     :value => lambda {|val| val ? 1 : nil }
+      attr_deprecate :best, :version => '3.0.24',
+                     :replacement => :level,
+                     :value => lambda {|val| val ? 9 : nil }
 
       ##
-      # Creates a new instance of Backup::Compressor::Gzip and
-      # configures it to either compress faster or better
+      # Creates a new instance of Backup::Compressor::Gzip
       def initialize(&block)
-        super
+        load_defaults!
 
-        @best ||= false
-        @fast ||= false
+        @level ||= false
 
         instance_eval(&block) if block_given?
-      end
 
-      ##
-      # Yields to the block the compressor command with options
-      # and it's filename extension.
-      def compress_with
-        log!
-        yield "#{ utility(:gzip) }#{ options }", '.gz'
+        @cmd = "#{ utility(:gzip) }#{ options }"
+        @ext = '.gz'
       end
 
       private
 
-      ##
-      # Returns the gzip option syntax for compressing
       def options
-        " #{ '--best ' if @best }#{ '--fast' if @fast }".rstrip
+        " -#{ @level }" if @level
       end
 
     end
   end
 end