anchor.diff:    unset beresp.http.X-Rack-Cache;
     unset beresp.http.X-Runtime;
   
  -<% if varnish_version == 2 %>
  +<% if @varnish_version == 2 %>
     if (beresp.cacheable) {
   <% else %>
     if (beresp.ttl > 0s) {
  
positive.code:     return(deliver);
    }
  }
  
  #
  # Below is a commented-out copy of the default VCL logic.  If you
  # redefine any of these subroutines, the built-in logic will be
  # appended to your code.
  #
  # sub vcl_recv {
  #     if (req.http.x-forwarded-for) {
  #         set req.http.X-Forwarded-For =
  #             req.http.X-Forwarded-For ", " client.ip;
  #     } else {
  #         set req.http.X-Forwarded-For = client.ip;
  #     }
  #     if (req.request != "GET" &&
  #       req.request != "HEAD" &&
  #       req.request != "PUT" &&
  #       req.request != "POST" &&
  #       req.request != "TRACE" &&
  #       req.request != "OPTIONS" &&
  #       req.request != "DELETE") {
  #         /* Non-RFC2616 or CONNECT which is weird. */
  #         return (pipe);
  #     }
  #     if (req.request != "GET" && req.request != "HEAD") {
  #         /* We only deal with GET and HEAD by default */
  #         return (pass);
  #     }
  #     if (req.http.Authorization || req.http.Cookie) {
  #         /* Not cacheable by default */
  #         return (pass);
  #     }
  #     return (lookup);
  # }
  #
  # sub vcl_pipe {
  #     # Note that only the first request to the backend will have
  #     # X-Forwarded-For set.  If you use X-Forwarded-For and want to
  #     # have it set for all requests, make sure to have:
  #     # set req.http.connection = "close";
  #     # here.  It is not set by default as it might break some broken web
  #     # applications, like IIS with NTLM authentication.
  #     return (pipe);
  # }
  #
  # sub vcl_pass {
  #     return (pass);
  # }
  #
  # sub vcl_hash {
  #     set req.hash += req.url;
  #     if (req.http.host) {
  #         set req.hash += req.http.host;
  #     } else {
  #         set req.hash += server.ip;
  #     }
  #     return (hash);
  # }
  #
  # sub vcl_hit {
  #     if (!obj.cacheable) {
  #         return (pass);
  #     }
  #     return (deliver);
  # }
  #
  # sub vcl_miss {
  #     return (fetch);
  # }
  #
  # sub vcl_fetch {
  #     if (!beresp.cacheable) {
  #         return (pass);
  #     }
  #     if (beresp.http.Set-Cookie) {
  #         return (pass);
  #     }
  #     return (deliver);
  # }
  #
  # sub vcl_deliver {
  #     return (deliver);
  # }
  #
  # sub vcl_error {
  #     set obj.http.Content-Type = "text/html; charset=utf-8";
  #     synthetic {"
  # <?xml version="1.0" encoding="utf-8"?>
  # <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
  #  "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
  # <html>
  #   <head>
  #     <title>"} obj.status " " obj.response {"</title>
  #   </head>
  #   <body>
  #     <h1>Error "} obj.status " " obj.response {"</h1>
  #     <p>"} obj.response {"</p>
  #     <h3>Guru Meditation:</h3>
  #     <p>XID: "} req.xid {"</p>
  #     <hr>
  #     <address>
  #        <a href="http://www.varnish-cache.org/">Varnish cache server</a>
  #     </address>
  #   </body>
  # </html>
  # "};
  #     return (deliver);
  # }
  
negative.code:     if(!client.ip ~ purge_acl) {
        error 405 "Not allowed";
      } else {
  <% if @varnish_version == 2 %>
        purge("req.url == " req.url);
  <% else %>
        ban("req.url == " + req.url);
  