pack.rb

    def self.pkg(platform, opt)

      # first try internet
      # On the url there should be link to latest revision of our release.
      # so programs writen for raisins will use latest revision of raisins and will not break with possible changes in future releases.
      # I presume http://shoes.heroku.com/
      url = 
        case opt
        when I_YES; "http://rock.nalinuxu.cz/~darktatka/pkg/#{RELEASE_NAME.downcase}/#{platform}/shoes"
        when I_NOV; "http://shoes.heroku.com/pkg/#{RELEASE_NAME.downcase}/#{platform}/shoes-novideo"
        end
        begin
          url = open(url).read.strip
          debug url
        rescue Exception => e
          error e
          url = nil
        end
        
        if url then
          # Now, we have the real url. The idea is to donload it only if we dont have it yet.
          # I suspect something like 
          # shoes#{RELEASE_ID}-#{RELEASE_NAME}-#{REVISION}-#{video/novideo}.#{PLATFORM_DEPENDENT_EXTENSION}
          #  example: shoes2-raisins-1134-novideo.exe
          # would be a good idea for filename.
          
          filename = File.basename(url)
          local_file_path = File.join(LIB_DIR, RELEASE_NAME.downcase, platform, filename)
          debug local_file_path
          if File.exists? local_file_path then
            open(local_file_path)
          else
            FileUtils.makedirs File.dirname(local_file_path)
            #here it can fail if the link downloaded from heroku is dead FIXME
            File.open(local_file_path, "wb") do |f|
              f.write(open(url))
            end
            open(local_file_path)
          end
        else
          # shoes.heroku.com is probably down or whatever. Try to use previously downloaded file.
          extension = case platform
          when "win32" then
           "exe"
          when "linux" then
           "run"
          when "osx" then
           "dmg"
          else
           raise "Unknown platform"
          end
          # it should probably use the latest downloaded version, not based on current revision.    FIXME
          filename = 
            case opt
            when I_YES then
              "shoes#{RELEASE_ID}-#{RELEASE_NAME.downcase}-#{REVISION}-video.#{extension}"
            when I_NOV then
              "shoes#{RELEASE_ID}-#{RELEASE_NAME.downcase}-#{REVISION}-novideo.#{extension}"
            end
          FileUtils.makedirs File.join(LIB_DIR, RELEASE_NAME.downcase, platform)
          debug Dir.entries(File.join(LIB_DIR, RELEASE_NAME.downcase, platform))
          local_file_path = File.join(LIB_DIR, RELEASE_NAME.downcase, platform, filename)
        if File.exists? local_file_path; open(local_file_path)
        else
          alert "Couldnt find file #{filename} remotely or localy."
        end
      end
    end