Class: SwissKnife::Assets

Inherits:
Object
  • Object
show all
Defined in:
lib/swiss_knife/assets.rb

Constant Summary collapse

EXTENSIONS = 
{ :javascripts => "js", :stylesheets => "css" }

Class Attribute Summary collapse

Class Method Summary collapse

Class Attribute Details

.configuration ⇒ Object

Returns the value of attribute configuration.



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# File 'lib/swiss_knife/assets.rb', line 4

def configuration
  @configuration
end

Class Method Details

.compress_css(source) ⇒ Object 



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# File 'lib/swiss_knife/assets.rb', line 52

def self.compress_css(source)
  source
end

.compress_js(source) ⇒ Object

Taken from github.com/sbecker/asset_packager/



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# File 'lib/swiss_knife/assets.rb', line 30

def self.compress_js(source)
  jsmin_path = File.dirname(__FILE__)
  tmp_path = Rails.root.join("tmp/js")

  # write out to a temp file
  File.open("#{tmp_path}_uncompressed.js", "w") {|f| f.write(source) }

  # compress file with JSMin library
  `ruby #{jsmin_path}/jsmin.rb <#{tmp_path}_uncompressed.js >#{tmp_path}_compressed.js \n`

  # read it back in and trim it
  result = ""
  File.open("#{tmp_path}_compressed.js", "r") { |f| result += f.read.strip }
  result << "\n;"

  # delete temp files if they exist
  File.delete("#{tmp_path}_uncompressed.js") if File.exists?("#{tmp_path}_uncompressed.js")
  File.delete("#{tmp_path}_compressed.js") if File.exists?("#{tmp_path}_compressed.js")

  result
end

.config ⇒ Object 



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# File 'lib/swiss_knife/assets.rb', line 13

def self.config
  @config ||= YAML.load_file(config_file)
end

.config? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/swiss_knife/assets.rb', line 21

def self.config?
  File.file?(config_file) && config
end

.config_file ⇒ Object 



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# File 'lib/swiss_knife/assets.rb', line 9

def self.config_file
  Rails.root.join("config/assets.yml")
end

.export(type) ⇒ Object 



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# File 'lib/swiss_knife/assets.rb', line 56

def self.export(type)
  assets_dir = public_dir.join(type.to_s)
  ext = EXTENSIONS[type]
  group = config[type.to_s]

  return unless group

  group.each do |name, files|
    File.open(assets_dir.join("#{name}_packaged.#{ext}"), "w+") do |f|
      files.each do |file|
        file << ".#{ext}" unless file =~ /\.#{ext}$/i

        f << send("compress_#{ext}", File.read(assets_dir.join(file)))
      end
    end
  end
end

.merge? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/swiss_knife/assets.rb', line 25

def self.merge?
  config? && Rails.env.production?
end

.public_dir ⇒ Object 



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# File 'lib/swiss_knife/assets.rb', line 17

def self.public_dir
  Rails.root.join("public")
end