Introduce the concept of application specific config

Similar to a plugin, an Application can specify config and an initialiser, and is the place to put such application-wide and unshareable things.

CHANGELOG.md

@@ -1,5 +1,6 @@
 # [develop](https://github.com/adhearsion/adhearsion)
   * Change: Define configuration per-environment for any environment name and without colliding with plugin names. See [#442](https://github.com/adhearsion/adhearsion/issues/442). Syntax is now `config.env(:development).foo = :bar` instead of `config.development.foo = :bar`.
+  * Feature: Introduce the concept of application specific config. Similar to a plugin, an Application can specify config and an initialiser, and is the place to put such application-wide and unshareable things.
 
 # [3.0.0.beta1](https://github.com/adhearsion/adhearsion/compare/v2.6.1...v3.0.0.beta1) - [2015-06-24](https://rubygems.org/gems/adhearsion/versions/3.0.0.beta1)
   * Change: Removed `Adhearsion.ahn_root=` which was deprecated in favour of `Adhearsion.root=`

features/cli_create.feature

@@ -24,6 +24,7 @@ Feature: Adhearsion Ahn CLI (Create)
       | app/assets/audio/en/hello_world.wav       |
       | app/call_controllers/simon_game.rb        |
       | config/adhearsion.rb                      |
+      | config/app.rb                             |
       | config/environment.rb                     |
       | config/events.rb                          |
       | config/routes.rb                          |
@@ -43,6 +44,10 @@ Feature: Adhearsion Ahn CLI (Create)
     logging.level
     config.core.username
     """
+    And the file "config/app.rb" should contain each of these content parts:
+    """
+    config do
+    """
     And the file "config/events.rb" should contain each of these content parts:
     """
     Adhearsion::Events.draw do
@@ -88,6 +93,7 @@ Feature: Adhearsion Ahn CLI (Create)
       | .gitignore            |
       | .rspec                |
       | config/adhearsion.rb  |
+      | config/app.rb         |
       | config/environment.rb |
       | config/events.rb      |
       | config/routes.rb      |

lib/adhearsion/application.rb

@@ -0,0 +1,7 @@
+# encoding: utf-8
+
+require 'adhearsion/plugin'
+
+class Adhearsion::Application < Adhearsion::Plugin
+  alias :name :plugin_name
+end

lib/adhearsion/generators/app/templates/config/app.rb

@@ -0,0 +1,17 @@
+# encoding: utf-8
+
+class DemoApp < Adhearsion::Application
+  name :demo
+
+  # Actions to perform when initialising the application
+  #
+  init do
+    logger.info "This is the Adhearsion Demo application as generated by `ahn create`. It should work well on FreeSWITCH, and will soon also work on Asterisk."
+  end
+
+  # Basic configuration for the application
+  #
+  config do
+    greeting "Hello. Welcome to the Simon Game. Lets play.", desc: "What to use to greet users before playing the Simon Game"
+  end
+end

lib/adhearsion/initializer.rb

@@ -1,5 +1,6 @@
 # encoding: utf-8
 
+require 'adhearsion/application'
 require 'adhearsion/linux_proc_name'
 require 'adhearsion/rayo/initializer'
 require 'adhearsion/http_server'
@@ -28,6 +29,7 @@ def start
       catch :boot_aborted do
         configure_plugins
         load_lib_folder
+        load_app_file
         load_config_file
         load_events_file
         load_routes_file
@@ -138,6 +140,11 @@ def load_lib_folder
       true
     end
 
+    def load_app_file
+      path = "#{Adhearsion.config.root}/config/app.rb"
+      load path if File.exists?(path)
+    end
+
     def load_config_file
       load "#{Adhearsion.config.root}/config/adhearsion.rb"
     end