add option --dont-start

bin/ruby-prof

@@ -17,6 +17,7 @@ module RubyProf
   #
   # Options:
   #        --allow_exceptions           Raise exceptions encountered during profiling (true) or suppress them (false)
+  #        --dont-start                 Don't start profile yet (start manually with RubyProf::Profile.current.start)
   #    -E, --eval-noprof=code           execute the ruby statements (not profiled)
   #        --exclude=methods    A comma separated list of methods to exclude.
   #                                       Specify instance methods via # (Integer#times)
@@ -73,6 +74,7 @@ module RubyProf
       options.pre_libs = Array.new
       options.pre_execs = Array.new
       options.printer = RubyProf::FlatPrinter
+      options.dont_start = false
       options.track_allocations = false
     end
 
@@ -124,6 +126,10 @@ module RubyProf
           options.allow_exceptions = true
         end
 
+        opts.on('--dont-start', "Don't start profile yet (start manually with RubyProf::Profile.current.start)") do
+          options.dont_start = true
+        end
+
         opts.on('-E code', '--eval-noprof=code', 'execute the ruby statements (not profiled)') do |code|
           options.pre_execs << code
         end
@@ -299,8 +305,13 @@ module RubyProf
       end
 
       script = ARGV.shift
-      profile.profile do
-       load script
+
+      if options.dont_start
+        load script
+      else
+        profile.profile do
+          load script
+        end
       end
     end
   end