Prevent AssetNotPrecompiledError before it occurs.

gistfile1.rb

  ##
  # Checks that the precompile list contains this file or raises an error, in dev only
  # Note: You will need to move config.assets.precompile to application.rb from production.rb
  def javascript_include_tag *sources
    raise_on_asset_absence sources
    super *sources
  end

  def stylesheet_link_tag *sources
    raise_on_asset_absence sources
    super *sources
  end

  def raise_on_asset_absence *sources
    sources.each do |source|
      CartoDB::Logger.info "SOURCE #{source}"
      next if source == {:media => "all"}
      raise "Hey, #{source} is not in the precompile list. This will fall apart in production." unless Rails.application.config.assets.precompile.any? do |matcher|
        if matcher.is_a? Proc
          matcher.call(source)
        elsif matcher.is_a? Regexp
          matcher.match(source)
        else
          rx = /(\.css)|(\.js)/
          [source].flatten.each do |s|
            matcher.to_s.gsub(rx,'') == s.to_s.gsub(rx,'')
          end
        end
      end
    end if Rails.env.development?
  end