diff options
Diffstat (limited to 'railties/lib/rails/engine.rb')
| -rw-r--r-- | railties/lib/rails/engine.rb | 79 |
1 files changed, 47 insertions, 32 deletions
diff --git a/railties/lib/rails/engine.rb b/railties/lib/rails/engine.rb index 725295004f..b579f70983 100644 --- a/railties/lib/rails/engine.rb +++ b/railties/lib/rails/engine.rb @@ -1,7 +1,7 @@ require 'rails/railtie' +require 'rails/engine/railties' require 'active_support/core_ext/module/delegation' require 'pathname' -require 'rbconfig' module Rails # <tt>Rails::Engine</tt> allows you to wrap a specific Rails application or subset of @@ -101,17 +101,17 @@ module Rails # paths["config"] # => ["config"] # paths["config/initializers"] # => ["config/initializers"] # paths["config/locales"] # => ["config/locales"] - # paths["config/routes"] # => ["config/routes.rb"] + # paths["config/routes.rb"] # => ["config/routes.rb"] # end # # The <tt>Application</tt> class adds a couple more paths to this set. And as in your # <tt>Application</tt>, all folders under +app+ are automatically added to the load path. - # If you have an <tt>app/services/tt> folder for example, it will be added by default. + # If you have an <tt>app/services</tt> folder for example, it will be added by default. # # == Endpoint # - # An engine can be also a rack application. It can be useful if you have a rack application that - # you would like to wrap with +Engine+ and provide some of the +Engine+'s features. + # An engine can also be a rack application. It can be useful if you have a rack application that + # you would like to wrap with +Engine+ and provide with some of the +Engine+'s features. # # To do that, use the +endpoint+ method: # @@ -123,7 +123,7 @@ module Rails # # Now you can mount your engine in application's routes just like that: # - # MyRailsApp::Application.routes.draw do + # Rails.application.routes.draw do # mount MyEngine::Engine => "/engine" # end # @@ -153,7 +153,7 @@ module Rails # Note that now there can be more than one router in your application, and it's better to avoid # passing requests through many routers. Consider this situation: # - # MyRailsApp::Application.routes.draw do + # Rails.application.routes.draw do # mount MyEngine::Engine => "/blog" # get "/blog/omg" => "main#omg" # end @@ -163,7 +163,7 @@ module Rails # and if there is no such route in +Engine+'s routes, it will be dispatched to <tt>main#omg</tt>. # It's much better to swap that: # - # MyRailsApp::Application.routes.draw do + # Rails.application.routes.draw do # get "/blog/omg" => "main#omg" # mount MyEngine::Engine => "/blog" # end @@ -175,7 +175,7 @@ module Rails # There are some places where an Engine's name is used: # # * routes: when you mount an Engine with <tt>mount(MyEngine::Engine => '/my_engine')</tt>, - # it's used as default :as option + # it's used as default <tt>:as</tt> option # * rake task for installing migrations <tt>my_engine:install:migrations</tt> # # Engine name is set by default based on class name. For <tt>MyEngine::Engine</tt> it will be @@ -250,7 +250,7 @@ module Rails # created to allow you to do that. Consider such a scenario: # # # config/routes.rb - # MyApplication::Application.routes.draw do + # Rails.application.routes.draw do # mount MyEngine::Engine => "/my_engine", as: "my_engine" # get "/foo" => "foo#index" # end @@ -259,7 +259,7 @@ module Rails # # class FooController < ApplicationController # def index - # my_engine.root_url #=> /my_engine/ + # my_engine.root_url # => /my_engine/ # end # end # @@ -268,7 +268,7 @@ module Rails # module MyEngine # class BarController # def index - # main_app.foo_path #=> /foo + # main_app.foo_path # => /foo # end # end # end @@ -350,8 +350,13 @@ module Rails Rails::Railtie::Configuration.eager_load_namespaces << base base.called_from = begin - # Remove the line number from backtraces making sure we don't leave anything behind - call_stack = caller.map { |p| p.sub(/:\d+.*/, '') } + call_stack = if Kernel.respond_to?(:caller_locations) + caller_locations.map { |l| l.absolute_path || l.path } + else + # Remove the line number from backtraces making sure we don't leave anything behind + caller.map { |p| p.sub(/:\d+.*/, '') } + end + File.dirname(call_stack.detect { |p| p !~ %r[railties[\w.-]*/lib/rails|rack[\w.-]*/lib/rack] }) end end @@ -359,6 +364,10 @@ module Rails super end + def find_root(from) + find_root_with_flag "lib", from + end + def endpoint(endpoint = nil) @endpoint ||= nil @endpoint = endpoint if endpoint @@ -366,7 +375,7 @@ module Rails end def isolate_namespace(mod) - engine_name(generate_railtie_name(mod)) + engine_name(generate_railtie_name(mod.name)) self.routes.default_scope = { module: ActiveSupport::Inflector.underscore(mod.name) } self.isolated = true @@ -390,7 +399,7 @@ module Rails end unless mod.respond_to?(:railtie_routes_url_helpers) - define_method(:railtie_routes_url_helpers) { railtie.routes.url_helpers } + define_method(:railtie_routes_url_helpers) {|include_path_helpers = true| railtie.routes.url_helpers(include_path_helpers) } end end end @@ -407,10 +416,8 @@ module Rails end end - self.isolated = false - delegate :middleware, :root, :paths, to: :config - delegate :engine_name, :isolated?, to: "self.class" + delegate :engine_name, :isolated?, to: :class def initialize @_all_autoload_paths = nil @@ -426,7 +433,6 @@ module Rails # Load console and invoke the registered hooks. # Check <tt>Rails::Railtie.console</tt> for more info. def load_console(app=self) - require "pp" require "rails/console/app" require "rails/console/helpers" run_console_blocks(app) @@ -448,7 +454,7 @@ module Rails self end - # Load rails generators and invoke the registered hooks. + # Load Rails generators and invoke the registered hooks. # Check <tt>Rails::Railtie.generators</tt> for more info. def load_generators(app=self) require "rails/generators" @@ -461,13 +467,17 @@ module Rails # files inside eager_load paths. def eager_load! config.eager_load_paths.each do |load_path| - matcher = /\A#{Regexp.escape(load_path)}\/(.*)\.rb\Z/ + matcher = /\A#{Regexp.escape(load_path.to_s)}\/(.*)\.rb\Z/ Dir.glob("#{load_path}/**/*.rb").sort.each do |file| require_dependency file.sub(matcher, '\1') end end end + def railties + @railties ||= Railties.new + end + # Returns a module with all the helpers defined for the engine. def helpers @helpers ||= begin @@ -503,7 +513,7 @@ module Rails def call(env) env.merge!(env_config) if env['SCRIPT_NAME'] - env.merge! "ROUTES_#{routes.object_id}_SCRIPT_NAME" => env['SCRIPT_NAME'].dup + env["ROUTES_#{routes.object_id}_SCRIPT_NAME"] = env['SCRIPT_NAME'].dup end app.call(env) end @@ -525,7 +535,7 @@ module Rails # Define the configuration object for the engine. def config - @config ||= Engine::Configuration.new(find_root_with_flag("lib")) + @config ||= Engine::Configuration.new(self.class.find_root(self.class.called_from)) end # Load data from db/seeds.rb file. It can be used in to load engines' @@ -550,7 +560,7 @@ module Rails # # This needs to be an initializer, since it needs to run once # per engine and get the engine as a block parameter - initializer :set_autoload_paths, before: :bootstrap_hook do |app| + initializer :set_autoload_paths, before: :bootstrap_hook do ActiveSupport::Dependencies.autoload_paths.unshift(*_all_autoload_paths) ActiveSupport::Dependencies.autoload_once_paths.unshift(*_all_autoload_once_paths) @@ -603,7 +613,7 @@ module Rails initializer :load_config_initializers do config.paths["config/initializers"].existent.sort.each do |initializer| - load(initializer) + load_config_initializer(initializer) end end @@ -631,23 +641,28 @@ module Rails end end + def routes? #:nodoc: + @routes + end + protected + def load_config_initializer(initializer) + ActiveSupport::Notifications.instrument('load_config_initializer.railties', initializer: initializer) do + load(initializer) + end + end + def run_tasks_blocks(*) #:nodoc: super paths["lib/tasks"].existent.sort.each { |ext| load(ext) } end - def routes? #:nodoc: - @routes - end - def has_migrations? #:nodoc: paths["db/migrate"].existent.any? end - def find_root_with_flag(flag, default=nil) #:nodoc: - root_path = self.class.called_from + def self.find_root_with_flag(flag, root_path, default=nil) #:nodoc: while root_path && File.directory?(root_path) && !File.exist?("#{root_path}/#{flag}") parent = File.dirname(root_path) |