added --bench for easier memory measuring

git-svn-id: http://rubygems.rubyforge.org/svn/trunk@1249 3d4018f9-ac1a-0410-99e9-8a154d859a19

lib/rubygems/config_file.rb

@@ -31,6 +31,9 @@ class ConfigFile
     # this threshhold value, then a bulk download technique is used.
     attr_accessor :bulk_threshhold
 
+    # True if we are benchmarking this run.
+    attr_accessor :benchmark
+
     # Create the config file object.  +args+ is the list of arguments
     # from the command line.
     #
@@ -50,6 +53,7 @@ class ConfigFile
     def initialize(arg_list)
       @config_file_name = nil
       @verbose = true
+      @benchmark = false
       handle_arguments(arg_list)
       begin
         @hash = open(config_file_name) {|f| YAML.load(f) }
@@ -94,6 +98,8 @@ def handle_arguments(arg_list)
             need_cfg_name = true
           when /^--config-file=(.+)$/
             @config_file_name = $1
+          when /^--bench(mark)?$/
+            @benchmark = true
           else
             @args << arg
           end

lib/rubygems/gem_runner.rb

@@ -22,12 +22,19 @@ def initialize(options={})
 
     # Run the gem command with the following arguments.
     def run(args)
+      start_time = Time.now
       do_configuration(args)
       cmd = @command_manager_class.instance
       cmd.command_names.each do |c|
         Command.add_specific_extra_args c, Array(Gem.configuration[c])
       end
       cmd.run(Gem.configuration.args)
+      end_time = Time.now
+      if Gem.configuration.benchmark 
+        printf "\nExecution time: %0.2f seconds.\n", end_time-start_time
+        puts "Press Enter to finish"
+        STDIN.gets
+      end
     end
 
     private