cli: Add flag to reduce verbosity of output

cmd/tusd/cli/flags.go

@@ -30,6 +30,7 @@ var Flags struct {
 	ExposeMetrics       bool
 	MetricsPath         string
 	BehindProxy         bool
+	VerboseOutput       bool
 
 	FileHooksInstalled bool
 	HttpHooksInstalled bool
@@ -59,6 +60,7 @@ func ParseFlags() {
 	flag.BoolVar(&Flags.ExposeMetrics, "expose-metrics", true, "Expose metrics about tusd usage")
 	flag.StringVar(&Flags.MetricsPath, "metrics-path", "/metrics", "Path under which the metrics endpoint will be accessible")
 	flag.BoolVar(&Flags.BehindProxy, "behind-proxy", false, "Respect X-Forwarded-* and similar headers which may be set by proxies")
+	flag.BoolVar(&Flags.VerboseOutput, "verbose", true, "Enable verbose logging output")
 
 	flag.Parse()
 

cmd/tusd/cli/hooks.go

@@ -103,14 +103,16 @@ func invokeHookSync(typ hooks.HookType, info tusd.FileInfo, captureOutput bool)
 	}
 
 	name := string(typ)
-	logEv(stdout, "HookInvocationStart", "type", name, "id", info.ID)
+	if Flags.VerboseOutput {
+		logEv(stdout, "HookInvocationStart", "type", name, "id", info.ID)
+	}
 
 	output, returnCode, err := hookHandler.InvokeHook(typ, info, captureOutput)
 
 	if err != nil {
 		logEv(stderr, "HookInvocationError", "type", string(typ), "id", info.ID, "error", err.Error())
 		MetricsHookErrorsTotal.WithLabelValues(string(typ)).Add(1)
-	} else {
+	} else if Flags.VerboseOutput {
 		logEv(stdout, "HookInvocationFinish", "type", string(typ), "id", info.ID)
 	}