IMPORTANT - removed all sample files

This is very likely to cause merge conflict, it is for the greater good
Discuss at: http://meta.discourse.org/t/enough-with-the-sample-files/10351

From now on we use ENV to customise if needed

.gitignore

@@ -23,10 +23,7 @@ public/plugins/*
 
 /public/assets/*
 
-config/database.yml
-config/redis.yml
 config/discourse.pill
-config/environments/production.rb
 
 # Ignore the default SQLite database and db dumps
 /db/*.sqlite3

config/database.yml

@@ -25,19 +25,7 @@ test:
   host_names:
     - test.localhost
 
-# using the test db, so jenkins can run this config
-# we need it to be in production so it minifies assets
-production:
-  adapter: postgresql
-  database: discourse_development
-  pool: 5
-  timeout: 5000
-  host_names:
-    ### If you change this setting you will need to
-    ###   - restart sidekiq if you change this setting
-    ###   - rebake all to posts using: `RAILS_ENV=production bundle exec rake posts:rebake`
-    - production.localhost # Update this to be the domain of your production site
-
+# profile db is used for benchamarking using the script/bench.rb script
 profile:
   adapter: postgresql
   database: discourse_profile
@@ -47,3 +35,17 @@ profile:
   timeout: 5000
   host_names:
     - "localhost"
+
+production:
+  pool: <%= ENV['POSTGRES_CONNECTION_POOL'] || 5 %>
+  timeout: 5000
+  adapter: postgresql
+  uri: <%= uri = URI.parse(ENV['POSTGRES_URL']) %>
+  socket: <%= ENV['POSTGRES_SOCKET'] %>
+  host: <%= uri.host  %>
+  port: <%= uri.port || 5432 %>
+  database: <%= ENV['POSTGRES_DB'] %>
+  username: <%= uri.user %>
+  password: <%= uri.password %>
+  host_names:
+    - <%= ENV["DISCOURSE_HOSTNAME"] || raise "env var for DISCOURSE_HOSTNAME must be set" %> # Update this to be the domain of your production site

config/database.yml.production-sample

@@ -1,27 +0,0 @@
-production:
-  adapter: postgresql
-  database: discourse_prod
-  # username: discourse_prod	# if using username/password auth
-  # password: itisagooddaytovi	# if using username/password auth
-  # host: dbhost		# if not localhost
-  pool: 5 	# size of DB connection pool *per process*
-  timeout: 5000
-  # db_id: 0	# database ID if hosting multiple sites
-  host_names:
-    ### Don't include the port number here. Change the "port" site setting instead, at /admin/site_settings.
-    ### If you change this setting you will need to
-    ###   - restart sidekiq if you change this setting
-    ###   - rebake all to posts using: `RAILS_ENV=production bundle exec rake posts:rebake`
-    - <%= ENV["DISCOURSE_HOSTNAME"] || "production.localhost" %> # Update this to be the domain of your production site
-
-test:
-  adapter: postgresql
-  database: discourse_test
-  # username: discourse_test
-  # password: 123123123123
-  min_messages: warning
-  host: localhost
-  pool: 5
-  timeout: 5000
-  host_names:
-    - test.localhost

config/environments/production.rb

@@ -3,7 +3,6 @@ Discourse::Application.configure do
 
   # Code is not reloaded between requests
   config.cache_classes = true
-
   config.eager_load = true
 
   # Full error reports are disabled and caching is turned on
@@ -13,12 +12,12 @@ Discourse::Application.configure do
   # Disable Rails's static asset server (Apache or nginx will already do this)
   config.serve_static_assets = false
 
-  # Compress JavaScripts and CSS
-  config.assets.compress = true
-
-  # rails 4
-  config.assets.js_compressor  = :uglifier
-  config.assets.css_compressor = :sass
+  if rails4?
+    config.assets.js_compressor  = :uglifier
+    config.assets.css_compressor = :sass
+  else
+    config.assets.compress = true
+  end
 
   # stuff should be pre-compiled
   config.assets.compile = false
@@ -33,30 +32,19 @@ Discourse::Application.configure do
   # the I18n.default_locale when a translation can not be found)
   config.i18n.fallbacks = true
 
-
-  # you may use other configuration here for mail eg: sendgrid
-
-  # config.action_mailer.delivery_method = :smtp
-  # config.action_mailer.smtp_settings = {
-  #   :address              => "smtp.sendgrid.net",
-  #   :port                 => 587,
-  #   :domain               => 'YOUR DOMAIN',
-  #   :user_name            => 'YOUR_USER',
-  #   :password             => 'YOUR_PASSWORD',
-  #   :authentication       => 'plain',
-  #   :enable_starttls_auto => true  }
-
+  # specify your smtp url using the SMTP_URL env var eg:
+  # SMTP_URL=smtp://user:password@myhost.com
   if ENV.key?('SMTP_URL')
     config.action_mailer.smtp_settings = begin
       uri = URI.parse(ENV['SMTP_URL'])
       params = {
         :address              => uri.host,
-        :port                 => uri.port,
+        :port                 => uri.port || 25,
         :domain               => (uri.path || "").split("/")[1],
         :user_name            => uri.user,
         :password             => uri.password,
         :authentication       => 'plain',
-        :enable_starttls_auto => true
+        :enable_starttls_auto => !ENV['SMTP_DISABLE_TLS']
       }
       CGI.parse(uri.query || "").each {|k,v| params[k.to_sym] = v.first}
       params
@@ -75,14 +63,7 @@ Discourse::Application.configure do
   config.handlebars.precompile = true
 
   # allows admins to use mini profiler
-  config.enable_mini_profiler = true
-
-  # allows Cross-origin resource sharing (CORS) for API access in JavaScript (default to false for security).
-  # See the initializer and https://github.com/cyu/rack-cors for configuration documentation.
-  #
-  # config.enable_rack_cors = false
-  # config.rack_cors_origins = ['*']
-  # config.rack_cors_resource = ['*', { :headers => :any, :methods => [:get, :post, :options] }]
+  config.enable_mini_profiler = !ENV["DISABLE_MINI_PROFILER"]
 
   # Discourse strongly recommend you use a CDN.
   # For origin pull cdns all you need to do is register an account and configure