add start announcement

applog.go

@@ -44,6 +44,9 @@ type AppLogOpts struct {
 	// for slog. Generally recommended to manage logger via app lifecycle
 	// instead of relying on globals.
 	SetDefault bool
+
+	// Disables announcement of log module w/ log level on app start.
+	DisableAnnouncement bool
 }
 
 // Module creates a new Module instance.
@@ -88,17 +91,29 @@ func setupLogger(lifecycle *app.Lifecycle, opts AppLogOpts) error {
 			return err
 		}
 
-		handlers = append(handlers, slog.NewJSONHandler(logfile, &slog.HandlerOptions{
+		fileHandler := slog.NewJSONHandler(logfile, &slog.HandlerOptions{
 			Level: opts.FileLevel,
-		}))
+		})
+
+		if !opts.DisableAnnouncement {
+			slog.New(fileHandler).Info("Logger initialized", "level", opts.FileLevel.String(), "output", opts.FileOutput)
+		}
+
+		handlers = append(handlers, fileHandler)
 	}
 
 	// If log output is specified, set up pretty-printed console logging
 	if opts.ConsoleOutput != nil {
-		handlers = append(handlers, tint.NewHandler(opts.ConsoleOutput, &tint.Options{
+		consoleHandler := tint.NewHandler(opts.ConsoleOutput, &tint.Options{
 			Level:      opts.ConsoleLevel,
 			TimeFormat: time.Kitchen,
-		}))
+		})
+
+		if !opts.DisableAnnouncement {
+			slog.New(consoleHandler).Info("Logger initialized", "level", opts.ConsoleLevel.String())
+		}
+
+		handlers = append(handlers, consoleHandler)
 	}
 
 	logger := slog.New(slogmulti.Fanout(handlers...))