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Diffstat (limited to 'guides/source/initialization.textile')
| -rw-r--r-- | guides/source/initialization.textile | 33 |
1 files changed, 20 insertions, 13 deletions
diff --git a/guides/source/initialization.textile b/guides/source/initialization.textile index 0638bbed10..43d89eac4b 100644 --- a/guides/source/initialization.textile +++ b/guides/source/initialization.textile @@ -4,15 +4,22 @@ This guide explains the internals of the initialization process in Rails as of Rails 4. It is an extremely in-depth guide and recommended for advanced Rails developers. * Using +rails server+ -* Using Passenger endprologue. This guide goes through every method call that is -required to boot up the Ruby on Rails stack for a default Rails 4 application, explaining each part in detail along the way. For this guide, we will be focusing on how the two most common methods (+rails server+ and Passenger) boot a Rails application. +required to boot up the Ruby on Rails stack for a default Rails 4 +application, explaining each part in detail along the way. For this +guide, we will be focusing on what happens when you execute +rails +server+ to boot your app. NOTE: Paths in this guide are relative to Rails or a Rails application unless otherwise specified. +TIP: If you want to follow along while browsing the Rails "source +code":https://github.com/rails/rails, we recommend that you use the +t+ +key binding to open the file finder inside github and find files +quickly. + h3. Launch! A Rails application is usually started with the command +rails server+. @@ -32,7 +39,7 @@ require "rails/cli" </ruby> This file will first attempt to push the +railties/lib+ directory if -present, and then require +rails/cli+. +present, and then requires +rails/cli+. h4. +railties/lib/rails/cli.rb+ @@ -121,8 +128,13 @@ exec RUBY, SCRIPT_RAILS, *ARGV if in_rails_application? This is effectively the same as running +ruby script/rails [arguments]+, where +[arguments]+ at this point in time is simply "server". +h3. Rails Initialization + +Only now we finally start the real initialization process, beginning +with +script/rails+. + TIP: If you execute +script/rails+ directly from your Rails app you will -avoid executing the code that we just described. +skip executing all the code that we've just described. h4. +script/rails+ @@ -239,12 +251,8 @@ module Rails h4. +actionpack/lib/action_dispatch.rb+ -Action Dispatch is the routing component of the Rails framework. Other -than the rouing itself, it adds -functionalities like routing, session, and common middlewares. - -Action Dispatch itself is also responsible for loading Active Support, Action -Pack, Active Model, and Rack. +Action Dispatch is the routing component of the Rails framework. +It adds functionalities like routing, session, and common middlewares. h4. +rails/commands/server.rb+ @@ -352,8 +360,7 @@ h4. +config/application+ When +require APP_PATH+ is executed, +config/application.rb+ is loaded. This is a file exists in your app and it's free for you to change based -on your needs. Among other things, inside this file you load gems with -bundler, and create your application namespace. +on your needs. h4. +Rails::Server#start+ @@ -513,7 +520,7 @@ require 'rails/all' h4. +railties/lib/rails/all.rb+ -This file is responsible for requiring all the individual parts of Rails like so: +This file is responsible for requiring all the individual frameworks of Rails: <ruby> require "rails" |