AssetFile

Assetfile.rb

require "json"
require "uglifier"
require "rake-pipeline-web-filters"

# this gives you concat, coffee_script, and minispade methods
require "rake-pipeline-web-filters/helpers"

class ImportFilter < Rake::Pipeline::Filter
  def generate_output(inputs, output)
    inputs.each do |input|
      path = input.root + "/" + input.path.sub(/[^\/]+\.\w+/, "")
      output.write input.read.gsub(/(@import\s+\"([^\"]+)\";)/) {
        File.read("#{path}#{$2}")
      }
    end
  end
end

class CdnFilter < Rake::Pipeline::Filter
  def generate_output(inputs, output)
    inputs.each do |input|
      output.write input.read.gsub(/url\("\/content/) {
        "url(\"//d1nc899te42izg.cloudfront.net/content"
      }
    end
  end
end

class FixUglifyFilter < Rake::Pipeline::Filter
  def generate_output(inputs, output)
    inputs.each do |input|
      output.write input.read + ";"
    end
  end
end

class GzipFilter < Rake::Pipeline::Filter
  processes_binary_files
  def generate_output(inputs, output)
    inputs.each do |input|
      strio = StringIO.open('','w')
      gz = Zlib::GzipWriter.new(strio)
      gz.write(input.read)
      gz.close
      output.write strio.string
    end
  end
end

VERS = File.read('VERSION')



# processed files go to build
output "content/build"

# the admin site
input "content/dev" do
  match "css/*.css" do
    filter ImportFilter
    filter CdnFilter
    yui_css do |input|
      input
    end
    concat do |filename|
      # we only care about these two files
      group = ['jquery-ui-1.8.17.custom.css', 'main.css']
      if group.include?(filename.split('/').last)
        "main.admin.min." + VERS + ".gz.css"
      end
    end
    filter GzipFilter
  end

  match "**/jquery-1.7.1.min.gz.js" do
    concat
  end

  match "**/*.js" do
    # block so uglify doesn't change name
    uglify do |input|
      input
    end
    filter FixUglifyFilter
    # immediate has to come before modernizr
    # block to filter if files even end up in a file at all
    # need to decide between immediate and main (top of bottom of html file)
    concat ['immediate.js', 'modernizr-2.0.min.js', 'main.js', 'highcharts.js', 'list.js', 'list.paging.js'], do |filename|
      immedateGroup = ['immediate.js', 'modernizr-2.0.min.js']
      if immedateGroup.include?(filename.split('/').last)
        "immediate.admin.min." + VERS + ".gz.js"
      else
        "main.admin.min." + VERS + ".gz.js"
      end
    end
    filter GzipFilter
  end


  match "css/*.{css,styl}" do
    concat do |filename|
    end
  end
  match "**/*.{csv,tsv,htm,png,jpg,php,json}" do
    concat do |filename|
    end
  end
end

# the marketing site

input "content/sitedev" do
  match "css/main.css" do
    filter ImportFilter
    filter CdnFilter
    yui_css
    concat "main.min." + VERS + ".gz.css"
    filter GzipFilter
  end

  match "**/*.js" do
    # block so uglify doesn't change name
    uglify do |input|
      input
    end
    filter FixUglifyFilter
    # immediate has to come before modernizr
    # block to filter if files even end up in a file at all
    # need to decide between immediate and main (top of bottom of html file)
    concat ['immediate.js', 'modernizr-2.0.min.js'], do |filename|
      immedateGroup = ['immediate.js', 'modernizr-2.0.min.js']
      laterGroup = ['main.js', 'jquery.form.js', 'jquery.animate-enhanced.js']
      if immedateGroup.include?(filename.split('/').last)
        "immediate.min." + VERS + ".gz.js"
      elsif laterGroup.include?(filename.split('/').last)
        "main.min." + VERS + ".gz.js"
      end
    end
    filter GzipFilter
  end


  match "css/*.{css,styl}" do
    concat do |filename|
    end
  end
  match "**/*.{csv,tsv,htm,png,jpg,php,json}" do
    concat do |filename|
    end
  end
end

Apparently I can't match that file separately on line 75.

very useful, thanks