Added back in basic benchmark support. To run:

ruby benchmark/benchmark.rb --adapter mysql --num 1000
  ruby benchmark/benchmark.rb --adapter mysql --num 1000 --to-csv /tmp/results.csv
  ruby benchmark/benchmark.rb --adapter mysql --num 1000 --to-html /tmp/results.html

benchmarks/lib/cli_parser.rb

@@ -0,0 +1,103 @@
+require 'optparse'
+require 'ostruct'
+
+# 
+# == PARAMETERS
+# * a - database adapter. ie: mysql, postgresql, oracle, etc.
+# * n - number of objects to test with. ie: 1, 100, 1000, etc.
+# * t - the table types to test. ie: myisam, innodb, memory, temporary, etc.
+#
+module BenchmarkOptionParser
+  BANNER = "Usage: ruby #{$0} [options]\nSee ruby #{$0} -h for more options."
+
+  def self.print_banner
+    puts BANNER
+  end
+  
+  def self.print_banner!
+    print_banner
+    exit
+  end
+  
+  def self.print_options( options )
+    puts "Benchmarking the following options:"
+    puts "  Database adapter: #{options.adapter}"
+    puts "  Number of objects: #{options.number_of_objects}"
+    puts "  Table types:"
+    print_valid_table_types( options, :prefix=>"    " )
+  end
+  
+  # TODO IMPLEMENT THIS
+  def self.print_valid_table_types( options, hsh={:prefix=>''} )
+    if options.table_types.keys.size > 0
+      options.table_types.keys.sort.each{ |type| puts hsh[:prefix].to_s + type.to_s }
+    else
+      puts 'No table types defined.'
+    end
+  end
+  
+  def self.parse( args )
+    options = OpenStruct.new( 
+      :table_types => {}, 
+      :delete_on_finish => true,
+      :number_of_objects => [],
+      :outputs => [] )
+    
+    opts = OptionParser.new do |opts|
+      opts.banner = BANNER
+      
+      # parse the database adapter
+      opts.on( "a", "--adapter [String]", 
+        "The database adapter to use. IE: mysql, postgresql, oracle" ) do |arg|
+        options.adapter = arg
+      end
+      
+      # parse do_not_delete flag
+      opts.on( "d", "--do-not-delete", 
+        "By default all records in the benchmark tables will be deleted at the end of the benchmark. " +
+        "This flag indicates not to delete the benchmark data." ) do |arg|
+        options.delete_on_finish = false
+      end
+      
+      # parse the number of row objects to test
+      opts.on( "n", "--num [Integer]",
+        "The number of objects to benchmark." ) do |arg|
+        options.number_of_objects << arg.to_i
+      end
+      
+      # parse the table types to test
+      opts.on( "t", "--table-type [String]",
+        "The table type to test. This can be used multiple times." ) do |arg|
+        if arg =~ /^all$/
+          options.table_types['all'] = options.benchmark_all_types = true
+        else
+          options.table_types[arg] = true
+        end        
+      end
+
+      # print results in CSV format
+      opts.on( "--to-csv [String]", "Print results in a CSV file format" ) do |filename|
+        options.outputs << OpenStruct.new( :format=>'csv', :filename=>filename)
+      end
+
+      # print results in HTML format
+      opts.on( "--to-html [String]", "Print results in HTML format" ) do |filename|
+        options.outputs << OpenStruct.new( :format=>'html', :filename=>filename )
+      end
+    end #end opt.parse!
+
+    begin 
+      opts.parse!( args )
+      if options.table_types.size == 0
+        options.table_types['all'] = options.benchmark_all_types = true
+      end
+    rescue Exception => ex
+      print_banner!
+    end
+    
+    print_options( options )
+    
+    options
+  end
+
+end