Method: Spider::Layout#compress_javascript

Defined in:
lib/spiderfw/templates/layout.rb

#compress_javascript(cpr) ⇒ Object



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# File 'lib/spiderfw/templates/layout.rb', line 299

def compress_javascript(cpr)
    require 'yui/compressor'

    pub_dest = self.class.compiled_folder_path
    name = cpr[:name]
    
    already_compressed = Dir.glob(pub_dest+'/'+name+'.*.js')
    unless already_compressed.empty?
        return File.basename(already_compressed.first)
    end
    
    tmp_combined = Spider.paths[:tmp]+'/_'+name+'.js'
    File.open(tmp_combined, 'w') do |f|
        cpr[:assets].each.each do |a|
            f.write IO.read(a[:path])+"\n"
        end
    end
        
        
    version = 0
    curr = Dir.glob(pub_dest+"/._#{name}.*.js")
    unless curr.empty?
        curr.each do |f|
            currname = File.basename(f)
            if currname =~ /(\d+)\.js$/
                version = $1.to_i if $1.to_i > version
                File.unlink(f)
            end
        end
    end
    version += 1
    compiled_name = "#{name}.#{version}.js"
    combined = "#{pub_dest}/._#{compiled_name}"

    dest = "#{pub_dest}/#{compiled_name}"
    FileUtils.cp(tmp_combined, combined)
    File.unlink(tmp_combined)
    compressor = ::YUI::JavaScriptCompressor.new("charset" => "UTF-8")
    io = open(combined, 'r')
    cjs = compressor.compress(io)
    open(dest, 'w') do |f|
        f << cjs
    end
    return compiled_name
    
end