Class: JsCat

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

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(params = {}) ⇒ JsCat

Returns a new instance of JsCat.



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# File 'lib/jscat.rb', line 3

def initialize(params = {})
  @js_dir   = params[:js_dir] || "public"
  @compress = params[:compress] || false
  @output   = params[:output] || false
  @priority_files = params[:prioritize] || false
  @ignore_files = params[:ignore] || false
  require "yui/compressor" if @compress
  render_js
  write_js if @output
end

Instance Attribute Details

#js ⇒ Object (readonly)

Returns the value of attribute js.



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# File 'lib/jscat.rb', line 2

def js
  @js
end

Instance Method Details

#compress_js ⇒ Object 



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# File 'lib/jscat.rb', line 52

def compress_js
   begin
     compressor = YUI::JavaScriptCompressor.new
     compressed_js = compressor.compress(@js)
     compress_success = true
     puts "compressed js"
   rescue Exception=>e
     puts 'Warning: Could not write javascript file, syntax error in javascript'
   end
   @js = compressed_js if compress_success
   return @js
end

#list_scripts ⇒ Object 



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# File 'lib/jscat.rb', line 13

def list_scripts
  @scripts = Dir.glob("#{@js_dir}/*.js")
  if @ignore_files then
    @ignore_files.uniq.each {|file|
      @scripts.delete(@js_dir+'/'+file)
    }
  end
  if @priority_files then    
    @priority_files_full = []
    @priority_files.uniq.each {|file|
      @priority_files_full << @js_dir+'/'+file
    }
    @priority_files_full.each {|file|
      if @scripts.include? file then
        @scripts.delete(file)
      else
        @priority_files_full.delete file  
      end
    }
    @scripts = @priority_files_full + @scripts
  end
  return @scripts
end

#render_js ⇒ Object 



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# File 'lib/jscat.rb', line 39

def render_js
  @js = ""
  list_scripts.each { |script|  
    File.open(script, 'r') do |f1|  
      while line = f1.gets  
        @js = @js + line
      end
      @js = @js + "\n"
    end   
   }
   compress_js if @compress
   return @js
end

#set_scripts(scripts_array) ⇒ Object 



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# File 'lib/jscat.rb', line 36

def set_scripts(scripts_array)
  @scripts = scripts_array
end

#write_js ⇒ Object 



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# File 'lib/jscat.rb', line 64

def write_js
  File.open(@output,'w') { |f| 
    f.write(@js) 
  }
end