CODEWITHSUNDEEP
javascriptruby-on-railsrubyasset-pipeline
ericraio
ericraio

Reputation: 1469

How do I output the entire asset pipeline in rails?

For this particular rails project, I want to save on an http request, so I'd like to output all the javascript onto the body that has been in the rails asset pipeline.

Is there a way to do this in rails?

Upvotes: 2

Views: 108

Answers (1)

fny
fny

Reputation: 33547

You unfortunately won't be able to get this working easily in development since the files are being served live by Sprocket's server, but getting this working in production is fairly simple: you just need to loop over the compiled scripts and render them in a blob.

Here's a helper that you can use instead of javascript_include_tag which will do just that:

module ApplicationHelper
  if Rails.env.production?
    def embedded_javascript_include_tag(*sources)
      options = sources.extract_options!.stringify_keys
      scripts = sources.uniq.map { |source|
        File.read("#{Rails.root}/public/#{javascript_path(source)}")
      }.join("\n").html_safe
      content_tag(:script, scripts, options)
    end
  else
    def embedded_javascript_include_tag(*sources)
      javascript_include_tag(sources)
    end
  end
end

Note you'll still need to run rake assets:precompile for this to work. Don't forget to set the environment to enable any uglifiers and minifers! (RAILS_ENV=production rake assets:precompile)

Upvotes: 2

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