Add some stuff not reproduced by macros

https://gist.github.com/dcarley/e31b5b9fabbde6d7c9cb
https://fastly.zendesk.com/requests/2176

govuk.vcl

@@ -54,10 +54,52 @@ sub vcl_recv {
   # << custom recv
 
 #FASTLY recv
+
+  # >> not reproduced by macro
+  if (req.request != "HEAD" && req.request != "GET" && req.request != "PURGE") {
+    return(pass);
+  }
+
+  return(lookup);
+  # << not reproduced by macro
 }
 
 sub vcl_fetch {
 #FASTLY fetch
+
+  # >> not reproduced by macro
+  if ((beresp.status == 500 || beresp.status == 503) && req.restarts < 1 && (req.request == "GET" || req.request == "HEAD")) {
+    restart;
+  }
+
+  if(req.restarts > 0 ) {
+    set beresp.http.Fastly-Restarts = req.restarts;
+  }
+
+  if (beresp.http.Set-Cookie) {
+    set req.http.Fastly-Cachetype = "SETCOOKIE";
+    return (pass);
+  }
+
+  if (beresp.http.Cache-Control ~ "private") {
+    set req.http.Fastly-Cachetype = "PRIVATE";
+    return (pass);
+  }
+
+  if (beresp.status == 500 || beresp.status == 503) {
+    set req.http.Fastly-Cachetype = "ERROR";
+    set beresp.ttl = 1s;
+    set beresp.grace = 5s;
+    return (deliver);
+  }
+
+  if (beresp.http.Expires || beresp.http.Surrogate-Control ~ "max-age" || beresp.http.Cache-Control ~"(s-maxage|max-age)") {
+    # keep the ttl here
+  } else {
+    # apply the default ttl
+    set beresp.ttl = 3600s;
+  }
+  # << not reproduced by macro
 }
 
 sub vcl_hit {
@@ -85,5 +127,11 @@ sub vcl_pass {
 }
 
 sub vcl_hash {
-#FASTLY hash
+  # >> not reproduced by macro
+  # `FASTLY hash` only appends `#####GENERATION#####`
+  set req.hash += req.url;
+  set req.hash += req.http.host;
+  set req.hash += "#####GENERATION#####";
+  return (hash);
+  # << not reproduced by macro
 }