Merge pull request #271 from ae-govau/printlistenaddr

fix: print the actual address listened on

changelog/unreleased/pull-271

@@ -0,0 +1,10 @@
+Enhancement: print actual listen address after start-up
+
+When started with `--listen :0` the server would print `start server on :0`
+
+Now the message includes the actual address listened on, for example
+`start server on 0.0.0.0:37333`.
+
+This is useful when starting a server with an auto-allocated free port number (port 0).
+
+https://github.com/restic/rest-server/pull/271

cmd/rest-server/listener_unix.go

@@ -28,7 +28,7 @@ func findListener(addr string) (listener net.Listener, err error) {
 			return nil, fmt.Errorf("listen on %v failed: %w", addr, err)
 		}
 
-		log.Printf("start server on %v", addr)
+		log.Printf("start server on %v", listener.Addr())
 		return listener, nil
 
 	case 1:

cmd/rest-server/listener_windows.go

@@ -14,6 +14,6 @@ func findListener(addr string) (listener net.Listener, err error) {
 		return nil, fmt.Errorf("listen on %v failed: %w", addr, err)
 	}
 
-	log.Printf("start server on %v", addr)
+	log.Printf("start server on %v", listener.Addr())
 	return listener, nil
 }