watcher - do not restart when normal termination

src/vs/platform/files/common/watcher.ts

@@ -218,6 +218,10 @@ export abstract class AbstractWatcherClient extends Disposable {
 		this.onLogMessage({ type: 'error', message: `[File Watcher (${this.options.type})] ${message}` });
 	}
 
+	protected trace(message: string) {
+		this.onLogMessage({ type: 'trace', message: `[File Watcher (${this.options.type})] ${message}` });
+	}
+
 	override dispose(): void {
 
 		// Render the watcher invalid from here

src/vs/workbench/services/files/electron-sandbox/watcherClient.ts

@@ -38,11 +38,16 @@ export class UniversalWatcherClient extends AbstractUniversalWatcherClient {
 			});
 
 			// React on unexpected termination of the watcher process
-			// We never expect the watcher to terminate by its own,
-			// so if that happens we want to restart the watcher.
+			// by listening to the `onDidTerminate` event. We do not
+			// consider an exit code of `0` as abnormal termination.
+
 			onDidTerminate.then(({ reason }) => {
-				if (reason) {
-					this.onError(`terminated by itself with code ${reason.code}, signal: ${reason.signal}`);
+				if (reason?.code === 0) {
+					this.trace(`terminated by itself with code ${reason.code}, signal: ${reason.signal}`);
+				} else {
+					if (reason) {
+						this.onError(`terminated by itself unexpectedly with code ${reason.code}, signal: ${reason.signal}`);
+					}
 				}
 			});