Fix spelling

git-svn-id: http://svn-commit.rubyonrails.org/rails/trunk@2574 5ecf4fe2-1ee6-0310-87b1-e25e094e27de

1 files changed, 35 insertions, 0 deletions

diff --git a/railties/lib/commands/perform/profiler b/railties/lib/commands/perform/profiler
new file mode 100644
index 0000000000..d84c8b739f
--- /dev/null
+++ b/railties/lib/commands/perform/profiler
@@ -0,0 +1,35 @@
+#!/usr/local/bin/ruby
+if ARGV.empty?
+  $stderr.puts "Usage: profiler 'Person.expensive_method(10)' [times]"
+  exit(1)
+end
+
+# Keep the expensive require out of the profile.
+$stderr.puts 'Loading Rails...'
+require File.dirname(__FILE__) + '/../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