generate requests with lua script

scripts/wrk.lua

@@ -0,0 +1,39 @@
+local wrk = {
+   scheme  = "http",
+   host    = "localhost",
+   port    = nil,
+   method  = "GET",
+   path    = "/",
+   headers = {},
+   body    = nil
+}
+
+function wrk.format(method, path, headers, body)
+   local host    = wrk.host
+   local method  = method  or wrk.method
+   local path    = path    or wrk.path
+   local headers = headers or wrk.headers
+   local body    = body    or wrk.body
+   local s       = {}
+
+   headers["Host"]           = port and (host .. ":" .. port) or host
+   headers["Content-Length"] = body and string.len(body)
+
+   s[1] = string.format("%s %s HTTP/1.1", method, path)
+   for name, value in pairs(headers) do
+      s[#s+1] = string.format("%s: %s", name, value)
+   end
+
+   s[#s+1] = ""
+   s[#s+1] = body or ""
+
+   return table.concat(s, "\r\n")
+end
+
+function wrk.init()    req = wrk.format() end
+function wrk.request() return req         end
+
+init    = wrk.init
+request = wrk.request
+
+return wrk