Class: Rack::Sprockets::Source

Inherits:
Object
  • Object
show all
Defined in:
lib/rack/sprockets/source.rb

Constant Summary collapse

PREFERRED_EXTENSIONS = 
[:js]
SECRETARY_DEFAULTS = 
{
  :expand_paths => true
}
YUI_OPTS = 
{
  :munge => true
}

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(js_resource, options = {}) ⇒ Source

Returns a new instance of Source.



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# File 'lib/rack/sprockets/source.rb', line 24

def initialize(js_resource, options={})
  @js_resource  = js_resource.gsub(/^\/+/, '')
  @compress = options[:compress]
  @cache    = options[:cache]

  @folder   = get_required_path(options, :folder)
  @secretary = SECRETARY_DEFAULTS.merge(options[:secretary] || {})
end

Instance Attribute Details

#js_resource ⇒ Object (readonly)

Returns the value of attribute js_resource.



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# File 'lib/rack/sprockets/source.rb', line 22

def js_resource
  @js_resource
end

Instance Method Details

#cache ⇒ Object 



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# File 'lib/rack/sprockets/source.rb', line 39

def cache
  @cache
end

#cache? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/rack/sprockets/source.rb', line 36

def cache?
  !@cache.nil?
end

#compiled ⇒ Object Also known as: to_js, js 



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# File 'lib/rack/sprockets/source.rb', line 53

def compiled
  @compiled ||= begin
    compiled_js = secretary.concatenation.to_s

    compiled_js = case @compress
    when :whitespace, true
      compiled_js.delete("\n")
    when :yui
      if defined?(YUI::JavaScriptCompressor)
        YUI::JavaScriptCompressor.new(YUI_OPTS).compress(compiled_js)
      else
        raise LoadError, "YUI::JavaScriptCompressor is not available. Install it with: gem install yui-compressor"
      end
    else
      compiled_js
    end

    if cache? && !File.exists?(cf = File.join(@cache, "#{@js_resource}.js"))
      FileUtils.mkdir_p(File.dirname(cf))
      File.open(cf, "w") do |file|
        file.write(compiled_js)
      end
    end

    compiled_js
  end
end

#compress? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/rack/sprockets/source.rb', line 33

def compress?
  !!@compress
end

#files ⇒ Object 



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# File 'lib/rack/sprockets/source.rb', line 43

def files
  @files ||= js_sources
end

#secretary ⇒ Object 



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# File 'lib/rack/sprockets/source.rb', line 47

def secretary
  @secretary_obj ||= Sprockets::Secretary.new(@secretary.merge({
    :source_files => files
  }))
end