From 6d6ae0841c94d3c0ce0c91311028ff7396c44a4a Mon Sep 17 00:00:00 2001
From: Carl Lerche <carllerche@mac.com>
Date: Wed, 7 Oct 2009 15:21:19 -0700
Subject: Start moving the initializers into the application object

---
 railties/lib/rails/initializable.rb | 70 +++++++++++++++++++++++++++++++++++++
 1 file changed, 70 insertions(+)
 create mode 100644 railties/lib/rails/initializable.rb

(limited to 'railties/lib/rails/initializable.rb')

diff --git a/railties/lib/rails/initializable.rb b/railties/lib/rails/initializable.rb
new file mode 100644
index 0000000000..61c98d4f99
--- /dev/null
+++ b/railties/lib/rails/initializable.rb
@@ -0,0 +1,70 @@
+module Rails
+  module Initializable
+
+    # A collection of initializers
+    class Collection < ActiveSupport::OrderedHash
+      # def initialize_copy(other)
+      #   super
+      #   each do |key, value|
+      #     self[key] = value.dup
+      #   end
+      # end
+
+      def run
+        each do |key, initializer|
+          initializer.run
+        end
+        self
+      end
+    end
+
+    class Initializer
+      attr_reader :name, :options, :block
+
+      def initialize(name, options = {}, &block)
+        @name, @options, @block = name, options, block
+      end
+
+      def run
+        return if @already_ran
+        @block.call
+        @already_ran = true
+      end
+    end
+
+    def initializer(name, options = {}, &block)
+      initializers[name] = Initializer.new(name, options, &block)
+    end
+
+    def initializers
+      @initializers ||= Collection.new
+    end
+
+    def initializers=(initializers)
+      @initializers = initializers
+    end
+
+  end
+
+  extend Initializable
+
+  # Check for valid Ruby version (1.8.2 or 1.8.4 or higher). This is done in an
+  # external file, so we can use it from the `rails` program as well without duplication.
+  initializer :check_ruby_version do
+    require 'rails/ruby_version_check'
+  end
+
+  # For Ruby 1.8, this initialization sets $KCODE to 'u' to enable the
+  # multibyte safe operations. Plugin authors supporting other encodings
+  # should override this behaviour and set the relevant +default_charset+
+  # on ActionController::Base.
+  #
+  # For Ruby 1.9, UTF-8 is the default internal and external encoding.
+  initializer :initialize_encoding do
+    if RUBY_VERSION < '1.9'
+      $KCODE='u'
+    else
+      Encoding.default_external = Encoding::UTF_8
+    end
+  end
+end
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