From 4249ffe2498e9a77242205f95245ba1fcca92732 Mon Sep 17 00:00:00 2001
From: Jeremy Kemper <jeremy@bitsweat.net>
Date: Sat, 17 Nov 2007 01:38:58 +0000
Subject: [PATCH] Load config/preinitializer.rb, if present, before loading the
 environment. Closes #9943.

git-svn-id: http://svn-commit.rubyonrails.org/rails/trunk@8159 5ecf4fe2-1ee6-0310-87b1-e25e094e27de
---
 railties/CHANGELOG            |  2 ++
 railties/environments/boot.rb | 13 ++++++++++++-
 railties/test/boot_test.rb    | 19 ++++++++++++++++++-
 3 files changed, 32 insertions(+), 2 deletions(-)

diff --git a/railties/CHANGELOG b/railties/CHANGELOG
index 87805fd1e7..86bad736ac 100644
--- a/railties/CHANGELOG
+++ b/railties/CHANGELOG
@@ -1,5 +1,7 @@
 *SVN*
 
+* Load config/preinitializer.rb, if present, before loading the environment.  #9943 [Chad Woolley]
+
 * FastCGI handler ignores unsupported signals like USR2 on Windows.  [Grzegorz Derebecki]
 
 * Only load ActionMailer::TestCase if ActionMailer is loaded.  Closes #10137 [defunkt]
diff --git a/railties/environments/boot.rb b/railties/environments/boot.rb
index 7591290447..518a8883c1 100644
--- a/railties/environments/boot.rb
+++ b/railties/environments/boot.rb
@@ -6,7 +6,10 @@ RAILS_ROOT = "#{File.dirname(__FILE__)}/.." unless defined?(RAILS_ROOT)
 module Rails
   class << self
     def boot!
-      pick_boot.run unless booted?
+      unless booted?
+        preinitialize
+        pick_boot.run
+      end
     end
 
     def booted?
@@ -20,6 +23,14 @@ module Rails
     def vendor_rails?
       File.exist?("#{RAILS_ROOT}/vendor/rails")
     end
+
+    def preinitialize
+      load(preinitializer_path) if File.exists?(preinitializer_path)
+    end
+
+    def preinitializer_path
+      "#{RAILS_ROOT}/config/preinitializer.rb"
+    end
   end
 
   class Boot
diff --git a/railties/test/boot_test.rb b/railties/test/boot_test.rb
index 5d5fb09b41..930a0d552a 100644
--- a/railties/test/boot_test.rb
+++ b/railties/test/boot_test.rb
@@ -11,12 +11,29 @@ class BootTest < Test::Unit::TestCase
     assert_nil Rails.boot!
   end
 
-  def test_boot_picks_and_runs_if_not_booted
+  def test_boot_preinitializes_then_picks_and_runs_if_not_booted
     Rails.expects(:booted?).returns(false)
+    Rails.expects(:preinitialize)
     Rails.expects(:pick_boot).returns(mock(:run => 'result'))
     assert_equal 'result', Rails.boot!
   end
 
+  def test_preinitialize_does_not_raise_exception_if_preinitializer_file_does_not_exist
+    Rails.stubs(:preinitializer_path).returns('/there/is/no/such/file')
+
+    assert_nothing_raised { Rails.preinitialize }
+  end
+
+  def test_load_preinitializer_loads_preinitializer_file
+    Rails.stubs(:preinitializer_path).returns("#{File.dirname(__FILE__)}/fixtures/environment_with_constant.rb")
+
+    assert_nil $initialize_test_set_from_env
+    Rails.preinitialize
+    assert_equal "success", $initialize_test_set_from_env
+  ensure
+    $initialize_test_set_from_env = nil
+  end
+
   def test_boot_vendor_rails_by_default
     Rails.expects(:booted?).returns(false)
     File.expects(:exist?).with("#{RAILS_ROOT}/vendor/rails").returns(true)