-
Notifications
You must be signed in to change notification settings - Fork 244
/
railtie.rb
270 lines (224 loc) · 8.97 KB
/
railtie.rb
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
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
require 'rails'
require 'rails/railtie'
require 'action_controller/railtie'
require 'active_support/core_ext/module/remove_method'
require 'active_support/core_ext/numeric/bytes'
require 'sprockets'
require 'sprockets/rails/asset_url_processor'
require 'sprockets/rails/sourcemapping_url_processor'
require 'sprockets/rails/context'
require 'sprockets/rails/helper'
require 'sprockets/rails/quiet_assets'
require 'sprockets/rails/route_wrapper'
require 'sprockets/rails/version'
require 'set'
module Rails
class Application
# Hack: We need to remove Rails' built in config.assets so we can
# do our own thing.
class Configuration
remove_possible_method :assets
end
# Undefine Rails' assets method before redefining it, to avoid warnings.
remove_possible_method :assets
remove_possible_method :assets=
# Returns Sprockets::Environment for app config.
attr_accessor :assets
# Returns Sprockets::Manifest for app config.
attr_accessor :assets_manifest
# Called from asset helpers to alert you if you reference an asset URL that
# isn't precompiled and hence won't be available in production.
def asset_precompiled?(logical_path)
if precompiled_assets.include?(logical_path)
true
elsif !config.cache_classes
# Check to see if precompile list has been updated
precompiled_assets(true).include?(logical_path)
else
false
end
end
# Lazy-load the precompile list so we don't cause asset compilation at app
# boot time, but ensure we cache the list so we don't recompute it for each
# request or test case.
def precompiled_assets(clear_cache = false)
@precompiled_assets = nil if clear_cache
@precompiled_assets ||= assets_manifest.find(config.assets.precompile).map(&:logical_path).to_set
end
end
class Engine < Railtie
# Skip defining append_assets_path on Rails <= 4.2
unless initializers.find { |init| init.name == :append_assets_path }
initializer :append_assets_path, :group => :all do |app|
app.config.assets.paths.unshift(*paths["vendor/assets"].existent_directories)
app.config.assets.paths.unshift(*paths["lib/assets"].existent_directories)
app.config.assets.paths.unshift(*paths["app/assets"].existent_directories)
end
end
end
end
module Sprockets
class Railtie < ::Rails::Railtie
include Sprockets::Rails::Utils
class ManifestNeededError < StandardError
def initialize
msg = "Expected to find a manifest file in `app/assets/config/manifest.js`\n" +
"But did not, please create this file and use it to link any assets that need\n" +
"to be rendered by your app:\n\n" +
"Example:\n" +
" //= link_tree ../images\n" +
" //= link_directory ../javascripts .js\n" +
" //= link_directory ../stylesheets .css\n" +
"and restart your server\n\n" +
"For more information see: https://github.com/rails/sprockets/blob/070fc01947c111d35bb4c836e9bb71962a8e0595/UPGRADING.md#manifestjs"
super msg
end
end
LOOSE_APP_ASSETS = lambda do |logical_path, filename|
filename.start_with?(::Rails.root.join("app/assets").to_s) &&
!['.js', '.css', ''].include?(File.extname(logical_path))
end
class OrderedOptions < ActiveSupport::OrderedOptions
def configure(&block)
self._blocks << block
end
end
config.assets = OrderedOptions.new
config.assets._blocks = []
config.assets.paths = []
config.assets.precompile = []
config.assets.prefix = "/assets"
config.assets.manifest = nil
config.assets.quiet = false
config.assets.resolve_assets_in_css_urls = true
initializer :set_default_precompile do |app|
if using_sprockets4?
raise ManifestNeededError unless ::Rails.root.join("app/assets/config/manifest.js").exist?
app.config.assets.precompile += %w( manifest.js )
else
app.config.assets.precompile += [LOOSE_APP_ASSETS, /(?:\/|\\|\A)application\.(css|js)$/]
end
end
initializer :quiet_assets do |app|
if app.config.assets.quiet
app.middleware.insert_before ::Rails::Rack::Logger, ::Sprockets::Rails::QuietAssets
end
end
initializer :asset_url_processor do |app|
if app.config.assets.resolve_assets_in_css_urls
Sprockets.register_postprocessor "text/css", ::Sprockets::Rails::AssetUrlProcessor
end
end
initializer :asset_sourcemap_url_processor do |app|
Sprockets.register_postprocessor "application/javascript", ::Sprockets::Rails::SourcemappingUrlProcessor
end
config.assets.version = ""
config.assets.debug = false
config.assets.compile = true
config.assets.digest = true
config.assets.cache_limit = 50.megabytes
config.assets.gzip = true
config.assets.check_precompiled_asset = true
config.assets.unknown_asset_fallback = true
config.assets.configure do |env|
config.assets.paths.each { |path| env.append_path(path) }
end
config.assets.configure do |env|
env.context_class.send :include, ::Sprockets::Rails::Context
env.context_class.assets_prefix = config.assets.prefix
env.context_class.digest_assets = config.assets.digest
env.context_class.config = config.action_controller
end
config.assets.configure do |env|
env.cache = Sprockets::Cache::FileStore.new(
"#{env.root}/tmp/cache/assets",
config.assets.cache_limit,
env.logger
)
end
Sprockets.register_dependency_resolver 'rails-env' do
::Rails.env.to_s
end
config.assets.configure do |env|
env.depend_on 'rails-env'
end
config.assets.configure do |env|
env.version = config.assets.version
end
config.assets.configure do |env|
env.gzip = config.assets.gzip if env.respond_to?(:gzip=)
end
rake_tasks do |app|
require 'sprockets/rails/task'
Sprockets::Rails::Task.new(app)
end
def build_environment(app, initialized = nil)
initialized = app.initialized? if initialized.nil?
unless initialized
::Rails.logger.warn "Application uninitialized: Try calling YourApp::Application.initialize!"
end
env = Sprockets::Environment.new(app.root.to_s)
config = app.config
# Run app.assets.configure blocks
config.assets._blocks.each do |block|
block.call(env)
end
# Set compressors after the configure blocks since they can
# define new compressors and we only accept existent compressors.
env.js_compressor = config.assets.js_compressor
env.css_compressor = config.assets.css_compressor
# No more configuration changes at this point.
# With cache classes on, Sprockets won't check the FS when files
# change. Preferable in production when the FS only changes on
# deploys when the app restarts.
if config.cache_classes
env = env.cached
end
env
end
def self.build_manifest(app)
config = app.config
path = File.join(config.paths['public'].first, config.assets.prefix)
Sprockets::Manifest.new(app.assets, path, config.assets.manifest)
end
config.after_initialize do |app|
config = app.config
if config.assets.compile
app.assets = self.build_environment(app, true)
app.routes.prepend do
mount app.assets => config.assets.prefix
end
end
app.assets_manifest = build_manifest(app)
if config.assets.resolve_with.nil?
config.assets.resolve_with = []
config.assets.resolve_with << :manifest if config.assets.digest && !config.assets.debug
config.assets.resolve_with << :environment if config.assets.compile
end
ActionDispatch::Routing::RouteWrapper.class_eval do
class_attribute :assets_prefix
if defined?(prepend) && ::Rails.version >= '4'
prepend Sprockets::Rails::RouteWrapper
else
include Sprockets::Rails::RouteWrapper
end
self.assets_prefix = config.assets.prefix
end
ActiveSupport.on_load(:action_view) do
include Sprockets::Rails::Helper
# Copy relevant config to AV context
self.debug_assets = config.assets.debug
self.digest_assets = config.assets.digest
self.assets_prefix = config.assets.prefix
self.assets_precompile = config.assets.precompile
self.assets_environment = app.assets
self.assets_manifest = app.assets_manifest
self.resolve_assets_with = config.assets.resolve_with
self.check_precompiled_asset = config.assets.check_precompiled_asset
self.unknown_asset_fallback = config.assets.unknown_asset_fallback
# Expose the app precompiled asset check to the view
self.precompiled_asset_checker = -> logical_path { app.asset_precompiled? logical_path }
end
end
end
end