Merge pull request #25 from felixhao/conf_check

add conf file pre check

CHANGELOG.md

@@ -2,6 +2,7 @@
 
 ## Version 1.1.0
 1. add memcache binary protocol support.
+2. add conf file check
 
 ## Version 1.0.0
 1. compitable consist hash with twemproxy.

README.md

@@ -1,4 +1,8 @@
-# Overlord [![Build Status](https://travis-ci.org/felixhao/overlord.svg?branch=master)](https://travis-ci.org/felixhao/overlord) [![GoDoc](http://godoc.org/github.com/felixhao/overlord/proxy?status.svg)](http://godoc.org/github.com/felixhao/overlord/proxy) [![codecov](https://codecov.io/gh/felixhao/overlord/branch/master/graph/badge.svg)](https://codecov.io/gh/felixhao/overlord)
+# Overlord 
+[![Build Status](https://travis-ci.org/felixhao/overlord.svg?branch=master)](https://travis-ci.org/felixhao/overlord) 
+[![GoDoc](http://godoc.org/github.com/felixhao/overlord/proxy?status.svg)](http://godoc.org/github.com/felixhao/overlord/proxy) 
+[![codecov](https://codecov.io/gh/felixhao/overlord/branch/master/graph/badge.svg)](https://codecov.io/gh/felixhao/overlord)
+[![Go Report Card](https://goreportcard.com/badge/github.com/felixhao/overlord)](https://goreportcard.com/report/github.com/felixhao/overlord)
 
 
 Overlord is a proxy based high performance Memcached and Redis solution written in Go.  

cmd/proxy/main.go

@@ -22,6 +22,7 @@ const (
 
 var (
 	version  bool
+	check    bool
 	logStd   bool
 	logFile  string
 	logVl    int
@@ -50,6 +51,7 @@ var usage = func() {
 
 func init() {
 	flag.Usage = usage
+	flag.BoolVar(&check, "t", false, "conf file check")
 	flag.BoolVar(&version, "v", false, "print version.")
 	flag.BoolVar(&logStd, "std", false, "log will printing into stdout.")
 	flag.BoolVar(&debug, "debug", false, "debug model, will open stdout log. high priority than conf.debug.")
@@ -67,6 +69,10 @@ func main() {
 		fmt.Printf("overlord version %s\n", VERSION)
 		os.Exit(0)
 	}
+	if check {
+		parseConfig()
+		os.Exit(0)
+	}
 	c, ccs := parseConfig()
 	if initLog(c) {
 		defer log.Close()