Rails.application.assets return nil when config.assets.compile = false

[thaichors3000]

With sprockets-rails 3.0.0. When we set
config.assets.compile = true
we get
Rails.application.assets #=> nil

With this it causes default_load_path to error. undefined method '#path' for NilClass. https://github.com/Compass/compass-rails/blob/master/lib/compass-rails/configuration.rb#L43

Because this https://github.com/Compass/compass-rails/blob/master/lib/compass-rails.rb#L37 returns nil.

Does anybody know any workaround this for now?

similar issues

• precompile fails with undefined method `paths' for nil:NilClass with sprockets-rails 3.0.0 rails/sprockets-rails#306

[PikachuEXE]

I think more details should be provided about your environment (like related gems & their versions)
to help them understand & solve this issue

[RISCfuture]

This isn't an issue with his environment; this is a change in Sprockets-Rails that renders Compass-Rails incompatible with version 3.0. In version 3.0, in production environments, config.assets (the Sprockets environment) is nil. Compass-Rails depends on having access to the Sprockets environment in production during the precompile process.

I fixed this in my gem by generating the Sprockets environment manually; see SquareSquash/javascript@5873143

[PikachuEXE]

The code in compass-rails access through Rails.application.assets
But the sprockets-rails README in both 2.3.3 (latest 2.x) & 3.0.0 mentioned that it should be accessed through config.assets

[RISCfuture]

Those two are different things entirely. In development:

>> Rails.application.assets
=> #<Sprockets::Environment:0x3fe3b630d980 root="/Documents/Programs/Rails/flightseein", paths=["/Documents/Programs/Rails/flightseein/app/assets/images", "/Documents/Programs/Rails/flightseein/app/assets/javascripts", "/Documents/Programs/Rails/flightseein/app/assets/stylesheets", "/Documents/Programs/Rails/flightseein/lib/assets/images", "/Documents/Programs/Rails/flightseein/lib/assets/javascripts", "/Documents/Programs/Rails/flightseein/lib/assets/stylesheets", "/Documents/Programs/Rails/flightseein/vendor/assets/javascripts", "/Documents/Programs/Rails/flightseein/vendor/assets/stylesheets", "/Users/tmorgan/.rvm/gems/ruby-2.3.0@flightseein/gems/coffee-rails-4.1.1/lib/assets/javascripts", "/Users/tmorgan/.rvm/gems/ruby-2.3.0@flightseein/gems/multiuploader-1.1.1/vendor/assets/images", "/Users/tmorgan/.rvm/gems/ruby-2.3.0@flightseein/gems/multiuploader-1.1.1/vendor/assets/javascripts", "/Users/tmorgan/.rvm/gems/ruby-2.3.0@flightseein/gems/multiuploader-1.1.1/vendor/assets/stylesheets", "/Users/tmorgan/.rvm/gems/ruby-2.3.0@flightseein/gems/carousel-1.1.2/vendor/assets/images", "/Users/tmorgan/.rvm/gems/ruby-2.3.0@flightseein/gems/carousel-1.1.2/vendor/assets/javascripts", "/Users/tmorgan/.rvm/gems/ruby-2.3.0@flightseein/gems/carousel-1.1.2/vendor/assets/stylesheets", "/Users/tmorgan/.rvm/gems/ruby-2.3.0@flightseein/gems/jquery-rails-4.1.0/vendor/assets/javascripts"]>
>> Rails.application.config.assets
=> {:_blocks=>[#<Proc:0x007fc76b8ead20@/Users/tmorgan/.rvm/gems/ruby-2.3.0@flightseein/gems/sprockets-rails-3.0.0/lib/sprockets/railtie.rb:88>, #<Proc:0x007fc76b8eaa78@/Users/tmorgan/.rvm/gems/ruby-2.3.0@flightseein/gems/sprockets-rails-3.0.0/lib/sprockets/railtie.rb:92>, #<Proc:0x007fc76b8ea730@/Users/tmorgan/.rvm/gems/ruby-2.3.0@flightseein/gems/sprockets-rails-3.0.0/lib/sprockets/railtie.rb:99>, #<Proc:0x007fc76b8e9ce0@/Users/tmorgan/.rvm/gems/ruby-2.3.0@flightseein/gems/sprockets-rails-3.0.0/lib/sprockets/railtie.rb:110>, #<Proc:0x007fc76b8e9718@/Users/tmorgan/.rvm/gems/ruby-2.3.0@flightseein/gems/sprockets-rails-3.0.0/lib/sprockets/railtie.rb:114>, #<Proc:0x007fc76f302a80@/Users/tmorgan/.rvm/gems/ruby-2.3.0@flightseein/gems/autoprefixer-rails-6.3.1/lib/autoprefixer-rails/railtie.rb:12>, #<Proc:0x007fc76f158ab8@/Users/tmorgan/.rvm/gems/ruby-2.3.0@flightseein/gems/sass-rails-5.0.4/lib/sass/rails/railtie.rb:56>], :paths=>["/Documents/Programs/Rails/flightseein/app/assets/images", "/Documents/Programs/Rails/flightseein/app/assets/javascripts", "/Documents/Programs/Rails/flightseein/app/assets/stylesheets", "/Documents/Programs/Rails/flightseein/lib/assets/images", "/Documents/Programs/Rails/flightseein/lib/assets/javascripts", "/Documents/Programs/Rails/flightseein/lib/assets/stylesheets", "/Documents/Programs/Rails/flightseein/vendor/assets/javascripts", "/Documents/Programs/Rails/flightseein/vendor/assets/stylesheets", "/Users/tmorgan/.rvm/gems/ruby-2.3.0@flightseein/gems/coffee-rails-4.1.1/lib/assets/javascripts", "/Users/tmorgan/.rvm/gems/ruby-2.3.0@flightseein/gems/multiuploader-1.1.1/vendor/assets/images", "/Users/tmorgan/.rvm/gems/ruby-2.3.0@flightseein/gems/multiuploader-1.1.1/vendor/assets/javascripts", "/Users/tmorgan/.rvm/gems/ruby-2.3.0@flightseein/gems/multiuploader-1.1.1/vendor/assets/stylesheets", "/Users/tmorgan/.rvm/gems/ruby-2.3.0@flightseein/gems/carousel-1.1.2/vendor/assets/images", "/Users/tmorgan/.rvm/gems/ruby-2.3.0@flightseein/gems/carousel-1.1.2/vendor/assets/javascripts", "/Users/tmorgan/.rvm/gems/ruby-2.3.0@flightseein/gems/carousel-1.1.2/vendor/assets/stylesheets", "/Users/tmorgan/.rvm/gems/ruby-2.3.0@flightseein/gems/jquery-rails-4.1.0/vendor/assets/javascripts"], :prefix=>"/assets", :manifest=>nil, :precompile=>[#<Proc:0x007fc76b8f3178@/Users/tmorgan/.rvm/gems/ruby-2.3.0@flightseein/gems/sprockets-rails-3.0.0/lib/sprockets/railtie.rb:61 (lambda)>, /(?:\/|\\|\A)application\.(css|js)$/, "ie.js", "*.png", "*.jpg", "*.jpeg", "*.gif"], :version=>"1.0", :debug=>true, :compile=>true, :digest=>true, :cache_limit=>52428800, :raise_runtime_errors=>true, :resolve_with=>[:environment]}

In production:

2.3.0 :001 > Rails.application.assets
 => nil 
2.3.0 :002 > Rails.application.config.assets
 => {:_blocks=>[#<Proc:0x0000000166e418@/var/www/www.timothymorgan.info/shared/bundle/ruby/2.3.0/gems/sprockets-rails-3.0.0/lib/sprockets/railtie.rb:88>, #<Proc:0x0000000166e1e8@/var/www/www.timothymorgan.info/shared/bundle/ruby/2.3.0/gems/sprockets-rails-3.0.0/lib/sprockets/railtie.rb:92>, #<Proc:0x0000000166e0a8@/var/www/www.timothymorgan.info/shared/bundle/ruby/2.3.0/gems/sprockets-rails-3.0.0/lib/sprockets/railtie.rb:99>, #<Proc:0x0000000166da90@/var/www/www.timothymorgan.info/shared/bundle/ruby/2.3.0/gems/sprockets-rails-3.0.0/lib/sprockets/railtie.rb:110>, #<Proc:0x0000000166d8b0@/var/www/www.timothymorgan.info/shared/bundle/ruby/2.3.0/gems/sprockets-rails-3.0.0/lib/sprockets/railtie.rb:114>, #<Proc:0x000000035dc570@/var/www/www.timothymorgan.info/shared/bundle/ruby/2.3.0/gems/autoprefixer-rails-6.3.1/lib/autoprefixer-rails/railtie.rb:12>, #<Proc:0x00000003c27da8@/var/www/www.timothymorgan.info/shared/bundle/ruby/2.3.0/gems/sass-rails-5.0.4/lib/sass/rails/railtie.rb:56>], :paths=>["/var/www/www.timothymorgan.info/releases/20160126054631/app/assets/fonts", "/var/www/www.timothymorgan.info/releases/20160126054631/app/assets/images", "/var/www/www.timothymorgan.info/releases/20160126054631/app/assets/javascripts", "/var/www/www.timothymorgan.info/releases/20160126054631/app/assets/stylesheets", "/var/www/www.timothymorgan.info/releases/20160126054631/vendor/assets/javascripts", "/var/www/www.timothymorgan.info/releases/20160126054631/vendor/assets/stylesheets", "/var/www/www.timothymorgan.info/shared/bundle/ruby/2.3.0/gems/font-awesome-rails-4.5.0.0/app/assets/fonts", "/var/www/www.timothymorgan.info/shared/bundle/ruby/2.3.0/gems/font-awesome-rails-4.5.0.0/app/assets/stylesheets", "/var/www/www.timothymorgan.info/shared/bundle/ruby/2.3.0/gems/coffee-rails-4.1.1/lib/assets/javascripts", "/var/www/www.timothymorgan.info/shared/bundle/ruby/2.3.0/gems/jquery-rails-4.1.0/vendor/assets/javascripts"], :prefix=>"/assets", :manifest=>nil, :precompile=>[#<Proc:0x00000001670f10@/var/www/www.timothymorgan.info/shared/bundle/ruby/2.3.0/gems/sprockets-rails-3.0.0/lib/sprockets/railtie.rb:61 (lambda)>, /(?:\/|\\|\A)application\.(css|js)$/, "print.css"], :version=>"1.0", :debug=>false, :compile=>false, :digest=>true, :cache_limit=>52428800, :js_compressor=>:uglifier, :css_compressor=>:sass, :resolve_with=>[:manifest]} 

[timhaines]

@RISCfuture @ChristianStancu @thaichor @mvastola @craigmcnamara @vojtad I've added a PR to fix this. Could someone review it please? If it's okay, I'll tidy up the changes and version numbers etc to make it easy for @craigmcnamara to release it. All feedback welcome. The PR is here: #263

After submitting this PR, I noticed @vojtad also created a PR earlier today, taking a different approach: #262

[timhaines]

@thaichor I think you intended to say config.assets.compile = false in the title of this issue. If that's the case could you edit the issue title please, to change true to false?

[RISCfuture]

EDIT: Disregard. Was looking at the wrong thing. #263 is fine; #262 is flawed, I added a comment.