Why is this new CSS manifest file not being compiled during Heroku slug compilation, while the normal application manifest works fine?
asset-pipeline, heroku, ruby-on-rails, ruby-on-rails-3
Solution
The solution was to add `config.assets.precompile += %w( new_manifest.css )` to production.rb, as described here. This isn't required in development, but is required in production, which caused my confusion.
Problem
I have a Rails 3.2.11 running on the Heroku Cedar stack. I don't compile assets locally, they are compiled automatically during slug compilation, as described here. I have just created a new CSS manifest file `app/assets/stylesheets/new_manifest.css.scss` in addition to the default `application.css.scss`. When I push to Heroku, this manifest file is not getting compiled like `application.css.scss` is. The new manifest file works fine in development. Why would that be happening? application.rb ``` config.assets.enabled = true config.assets.version = '1.0' config.assets.initialize_on_precompile = false ``` production.rb ``` config.assets.compile = false config.serve_static_assets = false config.assets.compress = true config.assets.digest = true ``` Console output from Heroku push ``` -----> Preparing app for Rails asset pipeline Running: rake assets:precompile Asset precompilation completed (83.62s) ``` Sample page ``` <%= stylesheet_link_tag "new_manifest", media: "all" %> ```