Class: FrontEndArchitect::Blender

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

Constant Summary collapse

VERSION = 
'0.24'
ALPHA_REGEX = 
/(-ms-)?filter:\s*(['"]?)progid:DXImageTransform\.Microsoft\.AlphaImageLoader\(\s*src=(['"])([^\?'"\)]+)(\?(?:[^'"\)]+)?)?\3,\s*sizingMethod=(['"])(image|scale|crop)\6\s*\)\2/im
IMPORT_REGEX =

shouldn’t the semicolon be optional?

/@import(?: url\(| )(['"]?)([^\?'"\)\s]+)(\?(?:[^'"\)]+)?)?\1\)?(?:[^?;]+)?;/im
URL_REGEX = 
/url\((['"]?)([^\?'"\)]+)(\?(?:[^'"\)]+)?)?\1?\)/im
DEFAULT_OPTIONS = 
{
  :blendfile => 'Blendfile.yaml',
  :data      => false,
  :force     => false,
  :root      => File.dirname('Blendfile.yaml'),
  :min       => :yui,
  :colored   => (Object.const_defined? :Colored),
}

Instance Method Summary collapse

Constructor Details

#initialize(opts) ⇒ Blender

Returns a new instance of Blender.



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# File 'lib/front_end_architect/blender.rb', line 38

def initialize(opts)
  @options = DEFAULT_OPTIONS.merge(opts)
end

Instance Method Details

#blend ⇒ Object 



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# File 'lib/front_end_architect/blender.rb', line 42

def blend
  elapsed = Benchmark.realtime do
    unless File.exists? @options[:blendfile]
      raise "Couldn't find '#{@options[:blendfile]}'"
    end
    
    blendfile_mtime = File.mtime(@options[:blendfile])
    blender         = YAML::load_file @options[:blendfile]
    
    Dir.chdir(File.dirname(@options[:blendfile]))
    
    blender = flatten_blendfile(blender)
    
    blender.each do |output_name, sources|
      output_name = Pathname.new(output_name).cleanpath.to_s
      
      output_new       = false
      gzip_output_name = output_name + '.gz'
      
      # Checks the type flag and if the current file meets the type requirements continues
      if output_name.match '.' + @options[:file_type].to_s
        file_type = output_name.match(/\.css/) ? 'css' : 'js'
        
        # Checks if output file exists and checks the mtimes of the source files to the output file if new creates a new file
        if File.exists?(output_name) && (!@options[:gzip] || File.exists?(gzip_output_name))
          output_files = []
          output_files << File.mtime(output_name)
          output_files << File.mtime(gzip_output_name) if @options[:gzip] && File.exists?(gzip_output_name)
          
          oldest_output = output_files.sort.first
          
          if blendfile_mtime > oldest_output
            output_new = true
          else
            sources.each do |i|
              if File.mtime(i) > oldest_output
                output_new = true
                break
              end
            end
          end
          
          if output_new || @options[:force]
            if File.writable?(output_name) && !(@options[:gzip] && !File.writable?(gzip_output_name))
              create_output(output_name, sources, file_type)
            else
              puts_colored 'Permission Denied:' + ' ' + output_name,      :red
              puts_colored 'Permission Denied:' + ' ' + gzip_output_name, :red if @options[:gzip]
            end
          else
            puts_colored 'Skipping: ' + output_name,      :yellow
            puts_colored 'Skipping: ' + gzip_output_name, :yellow if @options[:gzip]
          end
        else
          create_output(output_name, sources, file_type)
        end
      end
    end
  end
  
  puts sprintf('%.5f', elapsed) + ' seconds'
end

#generate ⇒ Object 



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# File 'lib/front_end_architect/blender.rb', line 105

def generate
  if File.exists?(@options[:blendfile]) && !@options[:force]
    raise "'#{@options[:blendfile]}' already exists"
  end
  
  blend_files = Hash.new
  
  Find.find(Dir.getwd) do |f|
    basename = File.basename(f)
    
    if FileTest.directory?(f) && (basename[0] == ?. || basename.match(/^(yui|tinymce|dojo|wp-includes|wp-admin|mint)$/i) || (File.basename(f).downcase == 'rails' && File.basename(File.dirname(f)).downcase == 'vendor'))
      Find.prune
    elsif !(basename.match(/(^|[-.])(pack|min)\.(css|js)$/i) || basename.match(/^(sifr\.js|ext\.js|mootools.*\.js)$/i))
      # TODO Check file contents instead of name for minification (port YSlow's isMinified)
      f.gsub!(Dir.getwd.to_s + '/', '')
      
      if File.extname(f).downcase == '.css' || File.extname(f).downcase == '.js'
        min_file  = basename.sub(/\.(css|js)$/i, '-min.\1')
        path      = File.dirname(f).split('/') # File::dirname depends on /
        
        path.push min_file
        path.push [basename]
        
        h = path.reverse.inject { |m,v| { v => m } }
        
        blend_files.deep_merge!(h).inspect
      end
    end
  end
  
  File.open(@options[:blendfile], 'w') do |blendfile|
    blendfile << blend_files.to_yaml
  end
end