Function lookupFile

config.go:106–127

(configFile string)

}

func lookupFile(configFile string) (realFile string, exists bool) {
	//add default file lookup
	//1、按绝对路径检查
	//2、尝试在当前进程根目录下寻找
	//3、尝试在当前进程根目录/config/ 下寻找
	//fixed for (#3 当使用json配置的时候，运行会抛出panic)
	realFile = configFile
	exists = true
	if !fileExists(realFile) {
		realFile = getCurrentDirectory() + "/" + configFile
		exists = false
	}
	if !exists && !fileExists(realFile) {
		realFile = getCurrentDirectory() + "/config/" + configFile
	} else {
		exists = true
	}
	if !exists && fileExists(realFile) {
		exists = true
	}
	return realFile, exists
}

func fileExists(filename string) bool {
	_, err := os.Stat(filename)