Add debug and trace logging switches

Add arguments to get more verbose logging...
Previously we had to recompile the binary with different log levels...

Readme.md

@@ -10,6 +10,8 @@ Gosbench consists of two parts:
 * Server: Coordinates Workers and general test queue
 * Workers: Actually connect to S3 and perform reading, writing, deleting and listing of objects
 
+INFO: `-d` activates debug logging, `-t` activates trace logging
+
 ### Running a test
 
 1. Build the server: `go install github.com/mulbc/gosbench/server`

server/main.go

@@ -17,22 +17,31 @@ import (
 )
 
 func init() {
-	log.SetLevel(log.InfoLevel)
 	log.SetFormatter(&log.TextFormatter{
 		FullTimestamp: true,
 	})
 	rand.Seed(time.Now().UnixNano())
 
 	flag.StringVar(&configFileLocation, "c", "", "Config file describing test run")
+	flag.BoolVar(&debug, "d", false, "enable debug log output")
+	flag.BoolVar(&trace, "t", false, "enable trace log output")
 	flag.Parse()
 	// Only demand this flag if we are not running go test
 	if configFileLocation == "" && flag.Lookup("test.v") == nil {
 		log.Fatal("-c is a mandatory parameter - please specify the config file")
 	}
+	if debug {
+		log.SetLevel(log.DebugLevel)
+	} else if trace {
+		log.SetLevel(log.TraceLevel)
+	} else {
+		log.SetLevel(log.InfoLevel)
+	}
 }
 
 var configFileLocation string
 var readyWorkers chan *net.Conn
+var debug, trace bool
 
 func loadConfigFromFile(configFileContent []byte) common.Testconf {
 	var config common.Testconf

worker/main.go

@@ -14,9 +14,9 @@ import (
 )
 
 var config common.WorkerConf
+var debug, trace bool
 
 func init() {
-	log.SetLevel(log.InfoLevel)
 	log.SetFormatter(&log.TextFormatter{
 		FullTimestamp: true,
 	})
@@ -26,11 +26,21 @@ func init() {
 func main() {
 	var serverAddress string
 	flag.StringVar(&serverAddress, "s", "", "Gosbench Server IP and Port in the form '192.168.1.1:2000'")
+	flag.BoolVar(&debug, "d", false, "enable debug log output")
+	flag.BoolVar(&trace, "t", false, "enable trace log output")
 	flag.Parse()
 	if serverAddress == "" {
 		log.Fatal("-s is a mandatory parameter - please specify the server IP and Port")
 	}
 
+	if debug {
+		log.SetLevel(log.DebugLevel)
+	} else if trace {
+		log.SetLevel(log.TraceLevel)
+	} else {
+		log.SetLevel(log.InfoLevel)
+	}
+
 	for {
 		err := connectToServer(serverAddress)
 		if err != nil {