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require 'fileutils'
module Rails
class Application < Engine
# TODO Clear up 2 way delegation flow between App class and instance.
# Infact just add a method_missing on the class.
#
# TODO I'd like to track the "default app" different using an inherited hook.
class << self
alias :configure :class_eval
delegate :initialize!, :load_tasks, :load_generators, :root, :to => :instance
private :new
def instance
@instance ||= new
end
def config
@config ||= Configuration.new(original_root)
end
def original_root
@original_root ||= find_root_with_file_flag("config.ru", Dir.pwd)
end
def inherited(base)
super
Railtie.plugins.delete(base)
end
def routes
ActionController::Routing::Routes
end
end
delegate :routes, :to => :'self.class'
attr_reader :route_configuration_files
def initialize
require_environment
Rails.application ||= self
@route_configuration_files = []
end
def initialize!
run_initializers(self)
self
end
def routes_changed_at
routes_changed_at = nil
route_configuration_files.each do |config|
config_changed_at = File.stat(config).mtime
if routes_changed_at.nil? || config_changed_at > routes_changed_at
routes_changed_at = config_changed_at
end
end
routes_changed_at
end
def reload_routes!
routes = Rails::Application.routes
routes.disable_clear_and_finalize = true
routes.clear!
route_configuration_files.each { |config| load(config) }
routes.finalize!
nil
ensure
routes.disable_clear_and_finalize = false
end
def require_environment
environment = config.paths.config.environment.to_a.first
require environment if environment
end
def load_tasks
require "rails/tasks"
plugins.each { |p| p.load_tasks }
# Load all application tasks
# TODO: extract out the path to the rake tasks
Dir["#{root}/lib/tasks/**/*.rake"].sort.each { |ext| load ext }
task :environment do
$rails_rake_task = true
initialize!
end
end
def load_generators
plugins.each { |p| p.load_generators }
end
# TODO: Fix this method. It loads all railties independent if :all is given
# or not, otherwise frameworks are never loaded.
def plugins
@plugins ||= begin
plugin_names = (config.plugins || [:all]).map { |p| p.to_sym }
Railtie.plugins.map(&:new) + Plugin.all(plugin_names, config.paths.vendor.plugins)
end
end
def app
@app ||= begin
reload_routes!
middleware.build(routes)
end
end
def call(env)
env["action_dispatch.parameter_filter"] = config.filter_parameters
app.call(env)
end
def initializers
my = super
hook = my.index { |i| i.name == :set_autoload_paths } + 1
initializers = Bootstrap.new(self).initializers
initializers += my[0...hook]
plugins.each { |p| initializers += p.initializers }
initializers += my[hook..-1]
initializers
end
initializer :add_builtin_route do |app|
if Rails.env.development?
app.route_configuration_files << File.join(RAILTIES_PATH, 'builtin', 'routes.rb')
end
end
initializer :build_middleware_stack do
app
end
# Fires the user-supplied after_initialize block (config#after_initialize)
initializer :after_initialize do
config.after_initialize_blocks.each do |block|
block.call(self)
end
end
# Disable dependency loading during request cycle
initializer :disable_dependency_loading do
if config.cache_classes && !config.dependency_loading
ActiveSupport::Dependencies.unhook!
end
end
end
end
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