service properties to constants

service.go

@@ -9,8 +9,11 @@ import (
 )
 
 const (
-	launchdStdoutPath = "/var/log/AdGuardHome.stdout.log"
-	launchdStderrPath = "/var/log/AdGuardHome.stderr.log"
+	launchdStdoutPath  = "/var/log/AdGuardHome.stdout.log"
+	launchdStderrPath  = "/var/log/AdGuardHome.stderr.log"
+	serviceName        = "AdGuardHome"
+	serviceDisplayName = "AdGuard Home service"
+	serviceDescription = "AdGuard Home: Network-level blocker"
 )
 
 // Represents the program that will be launched by a service or daemon
@@ -51,9 +54,9 @@ func handleServiceControlAction(action string) {
 		log.Fatal("Unable to find the path to the current directory")
 	}
 	svcConfig := &service.Config{
-		Name:             "AdGuardHome",
-		DisplayName:      "AdGuard Home service",
-		Description:      "AdGuard Home: Network-level blocker",
+		Name:             serviceName,
+		DisplayName:      serviceDisplayName,
+		Description:      serviceDescription,
 		WorkingDirectory: pwd,
 		Arguments:        []string{"-s", "run"},
 	}

syslog_others.go

@@ -9,7 +9,7 @@ import (
 
 // configureSyslog reroutes standard logger output to syslog
 func configureSyslog() error {
-	w, err := syslog.New(syslog.LOG_NOTICE|syslog.LOG_USER, "AdGuard Home")
+	w, err := syslog.New(syslog.LOG_NOTICE|syslog.LOG_USER, serviceName)
 	if err != nil {
 		return err
 	}

syslog_windows.go

@@ -8,9 +8,6 @@ import (
 	"golang.org/x/sys/windows/svc/eventlog"
 )
 
-// should be the same as the service name!
-const eventLogSrc = "AdGuardHome"
-
 type eventLogWriter struct {
 	el *eventlog.Log
 }
@@ -21,15 +18,18 @@ func (w *eventLogWriter) Write(b []byte) (int, error) {
 }
 
 func configureSyslog() error {
+	// Note that the eventlog src is the same as the service name
+	// Otherwise, we will get "the description for event id cannot be found" warning in every log record
+
 	// Continue if we receive "registry key already exists" or if we get
 	// ERROR_ACCESS_DENIED so that we can log without administrative permissions
 	// for pre-existing eventlog sources.
-	if err := eventlog.InstallAsEventCreate(eventLogSrc, eventlog.Info|eventlog.Warning|eventlog.Error); err != nil {
+	if err := eventlog.InstallAsEventCreate(serviceName, eventlog.Info|eventlog.Warning|eventlog.Error); err != nil {
 		if !strings.Contains(err.Error(), "registry key already exists") && err != windows.ERROR_ACCESS_DENIED {
 			return err
 		}
 	}
-	el, err := eventlog.Open(eventLogSrc)
+	el, err := eventlog.Open(serviceName)
 	if err != nil {
 		return err
 	}