Display early log when exiting earlier.

diff --git a/main.go b/main.go
index 0908140..c8effe6 100644 (file)
--- a/main.go
+++ b/main.go
@@ -75,14 +75,28 @@ var IOsk *socketio_client.Client
 
 // exitError exists this program with the specified error
 func exitError(code int, f string, a ...interface{}) {
+       earlyDisplay()
        err := fmt.Sprintf(f, a...)
        fmt.Fprintf(os.Stderr, err+"\n")
        os.Exit(code)
 }
 
+// earlyDebug Used to log info before logger has been initialized
+var earlyDebug []string
+
+func earlyPrintf(format string, args ...interface{}) {
+       earlyDebug = append(earlyDebug, fmt.Sprintf(format, args...))
+}
+
+func earlyDisplay() {
+       for _, str := range earlyDebug {
+               Log.Infof("%s", str)
+       }
+       earlyDebug = []string{}
+}
+
 // main
 func main() {
-       var earlyDebug []string
 
        // Allow to set app name from cli (useful for debugging)
        if AppName == "" {
@@ -217,7 +231,7 @@ func main() {
 
        // Load config file if requested
        if confFile != "" {
-               earlyDebug = append(earlyDebug, fmt.Sprintf("confFile detected: %v", confFile))
+               earlyPrintf("confFile detected: %v", confFile)
                if !common.Exists(confFile) {
                        exitError(1, "Error env config file not found")
                }
@@ -232,7 +246,7 @@ func main() {
                if err != nil {
                        exitError(1, "Error reading env config file "+confFile)
                }
-               earlyDebug = append(earlyDebug, fmt.Sprintf("EnvConfFileMap: %v", EnvConfFileMap))
+               earlyPrintf("EnvConfFileMap: %v", EnvConfFileMap)
        }
 
        app.Before = func(ctx *cli.Context) error {
@@ -258,9 +272,7 @@ func main() {
                Log.Formatter = &logrus.TextFormatter{}
 
                Log.Infof("%s version: %s", AppName, app.Version)
-               for _, str := range earlyDebug {
-                       Log.Infof("%s", str)
-               }
+               earlyDisplay()
                Log.Debugf("\nEnvironment: %v\n", os.Environ())
 
                if err = XdsConnInit(ctx); err != nil {
@@ -361,6 +373,7 @@ func XdsConnInit(ctx *cli.Context) error {
        }
        svrCfg := xdsConf.Servers[XdsServerIndexGet()]
        if (serverURL != "" && svrCfg.URL != serverURL) || !svrCfg.Connected {
+               Log.Infof("Update XDS Server config: serverURL=%v, svrCfg=%v", serverURL, svrCfg)
                if serverURL != "" {
                        svrCfg.URL = serverURL
                }