aboutsummaryrefslogtreecommitdiffstats
path: root/actionpack/lib/sprockets/railtie.rb
blob: e87382f29dcdfc3482a199810faa4ca59070ced1 (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
require "sprockets"

# TODO: Move this to sprockets-rails
# If so, we can move the require to a Gemfile and remove assets.enabled
class Sprockets::Railtie < Rails::Railtie
  def self.using_coffee?
    require 'coffee-script'
    defined?(CoffeeScript)
  rescue LoadError
    false
  end

  def self.using_scss?
    require 'sass'
    defined?(Sass)
  rescue LoadError
    false
  end

  config.app_generators.javascript_engine :coffee if using_coffee?
  config.app_generators.stylesheet_engine :scss   if using_scss?

  # Configure ActionController to use sprockets.
  initializer "sprockets.set_configs", :after => "action_controller.set_configs" do |app|
    ActiveSupport.on_load(:action_controller) do
      self.use_sprockets = app.config.assets.enabled
    end
  end

  # We need to configure this after initialization to ensure we collect
  # paths from all engines. This hook is invoked exactly before routes
  # are compiled.
  config.after_initialize do |app|
    assets = app.config.assets
    next unless assets.enabled

    app.assets = asset_environment(app)
    app.routes.append do
      mount app.assets => assets.prefix
    end

    if config.action_controller.perform_caching
      app.assets = app.assets.index
    end
  end

  protected

  def asset_environment(app)
    assets = app.config.assets
    env = Sprockets::Environment.new(app.root.to_s)
    env.static_root = File.join(app.root.join("public"), assets.prefix)
    env.paths.concat assets.paths
    env.logger = Rails.logger
    env
  end
end