2 files changed, 78 insertions, 0 deletions
diff --git a/tools/console b/tools/console
new file mode 100755
index 0000000000..ea995a1a54
--- /dev/null
+++ b/tools/console
@@ -0,0 +1,7 @@
+#!/usr/bin/env ruby
+require File.expand_path('../../load_paths', __FILE__)
+require 'rails/all'
+require 'active_support/all'
+require 'irb'
+require 'irb/completion'
+IRB.start
diff --git a/tools/profile b/tools/profile
new file mode 100755
index 0000000000..fbea67492b
--- /dev/null
+++ b/tools/profile
@@ -0,0 +1,71 @@
+#!/usr/bin/env ruby
+# Example:
+#   tools/profile activesupport/lib/active_support.rb
+ENV['NO_RELOAD'] ||= '1'
+ENV['RAILS_ENV'] ||= 'development'
+
+require 'benchmark'
+
+module RequireProfiler
+  private
+  def require(file, *args) RequireProfiler.profile(file) { super } end
+  def load(file, *args) RequireProfiler.profile(file) { super } end
+
+  @depth, @stats = 0, []
+  class << self
+    attr_accessor :depth
+    attr_accessor :stats
+
+    def profile(file)
+      stats << [file, depth]
+      self.depth += 1
+      result = nil
+      elapsed = Benchmark.realtime { result = yield }
+      self.depth -= 1
+      stats.pop if stats.last.first == file
+      stats << [file, depth, elapsed] if result
+      result
+    end
+  end
+end
+
+GC.start
+before_rss = `ps -o rss= -p #{Process.pid}`.to_i
+
+path = ARGV.shift
+if mode = ARGV.shift
+  require 'ruby-prof'
+  RubyProf.measure_mode = RubyProf.const_get(mode.upcase)
+  RubyProf.start
+else
+  Object.instance_eval { include RequireProfiler }
+end
+
+elapsed = Benchmark.realtime { require path }
+results = RubyProf.stop if mode
+
+GC.start
+after_rss = `ps -o rss= -p #{Process.pid}`.to_i
+
+if mode
+  if printer = ARGV.shift
+    RubyProf.const_get("#{printer.to_s.classify}Printer").new(results).print($stdout)
+  elsif RubyProf.const_defined?(:CallStackPrinter)
+    File.open("#{File.basename(path, '.rb')}.#{mode}.html", 'w') do |out|
+      RubyProf::CallStackPrinter.new(results).print(out)
+    end
+  else
+    File.open("#{File.basename(path, '.rb')}.#{mode}.callgrind", 'w') do |out|
+      RubyProf::CallTreePrinter.new(results).print(out)
+    end
+  end
+end
+
+RequireProfiler.stats.each do |file, depth, sec|
+  if sec
+    puts "%8.1f ms  %s%s" % [sec * 1000, ' ' * depth, file]
+  else
+    puts "#{' ' * (13 + depth)}#{file}"
+  end
+end
+puts "%8.1f ms  %d KB RSS" % [elapsed * 1000, after_rss - before_rss]