Add flag to log caller

cmd/main.go

@@ -31,6 +31,7 @@ func main() {
 	kingpin.Flag("timezone", "Timezone assigned to Diun.").Envar("TZ").Default("UTC").StringVar(&flags.Timezone)
 	kingpin.Flag("log-level", "Set log level.").Envar("LOG_LEVEL").Default("info").StringVar(&flags.LogLevel)
 	kingpin.Flag("log-json", "Enable JSON logging output.").Envar("LOG_JSON").Default("false").BoolVar(&flags.LogJson)
+	kingpin.Flag("log-caller", "Enable to add file:line of the caller.").Envar("LOG_CALLER").Default("false").BoolVar(&flags.LogCaller)
 	kingpin.Flag("run-startup", "Run on startup.").Envar("RUN_STARTUP").Default("false").BoolVar(&flags.RunStartup)
 	kingpin.Flag("docker", "Enable Docker mode.").Envar("DOCKER").Default("false").BoolVar(&flags.Docker)
 	kingpin.UsageTemplate(kingpin.CompactUsageTemplate).Version(version).Author("CrazyMax")

internal/logging/logger.go

@@ -28,7 +28,12 @@ func Configure(fl *model.Flags, location *time.Location) {
 		w = os.Stdout
 	}
 
-	log.Logger = zerolog.New(w).With().Caller().Timestamp().Logger()
+	ctx := zerolog.New(w).With().Timestamp()
+	if fl.LogCaller {
+		ctx = ctx.Caller()
+	}
+
+	log.Logger = ctx.Logger()
 
 	logLevel, err := zerolog.ParseLevel(fl.LogLevel)
 	if err != nil {

internal/model/flags.go

@@ -7,6 +7,7 @@ type Flags struct {
 	Timezone   string
 	LogLevel   string
 	LogJson    bool
+	LogCaller  bool
 	RunStartup bool
 	Docker     bool
 }