From 29d4c2b36f92b333b66091869b5cf61e2a480a36 Mon Sep 17 00:00:00 2001
From: David Heinemeier Hansson <david@loudthinking.com>
Date: Fri, 14 Oct 2005 21:25:40 +0000
Subject: Finished move

git-svn-id: http://svn-commit.rubyonrails.org/rails/trunk@2591 5ecf4fe2-1ee6-0310-87b1-e25e094e27de
---
 railties/lib/commands/performance/profiler.rb | 35 +++++++++++++++++++++++++++
 1 file changed, 35 insertions(+)
 create mode 100644 railties/lib/commands/performance/profiler.rb

(limited to 'railties/lib/commands/performance/profiler.rb')

diff --git a/railties/lib/commands/performance/profiler.rb b/railties/lib/commands/performance/profiler.rb
new file mode 100644
index 0000000000..f599ad6635
--- /dev/null
+++ b/railties/lib/commands/performance/profiler.rb
@@ -0,0 +1,35 @@
+#!/usr/local/bin/ruby
+if ARGV.empty?
+  $stderr.puts "Usage: ./script/perform profiler 'Person.expensive_method(10)' [times]"
+  exit(1)
+end
+
+# Keep the expensive require out of the profile.
+$stderr.puts 'Loading Rails...'
+require RAILS_ROOT + '/config/environment'
+
+# Define a method to profile.
+if ARGV[1] and ARGV[1].to_i > 1
+  eval "def profile_me() #{ARGV[1]}.times { #{ARGV[0]} } end"
+else
+  eval "def profile_me() #{ARGV[0]} end"
+end
+
+# Use the ruby-prof extension if available.  Fall back to stdlib profiler.
+begin
+  require 'prof'
+  $stderr.puts 'Using the ruby-prof extension.'
+  Prof.clock_mode = Prof::GETTIMEOFDAY
+  Prof.start
+  profile_me
+  results = Prof.stop
+  require 'rubyprof_ext'
+  Prof.print_profile(results, $stderr)
+rescue LoadError
+  require 'profiler'
+  $stderr.puts 'Using the standard Ruby profiler.'
+  Profiler__.start_profile
+  profile_me
+  Profiler__.stop_profile
+  Profiler__.print_profile($stderr)
+end
-- 
cgit v1.2.3