skip the hidden files when livesyncing (#2663)

* Fix multiple mkdir commands for the same directory #2653

* skip the hidden files when livesyncing

Author: yyosifov

lib/services/livesync/platform-livesync-service.ts

@@ -110,9 +110,19 @@ export abstract class PlatformLiveSyncServiceBase implements IPlatformLiveSyncSe
 			}
 		});
 
+		// skip hidden files, to prevent reload of the app for hidden files
+		// created temporarily by the IDEs
+		if (this.isUnixHiddenPath(filePath)) {
+			isFileExcluded = true;
+		}
+
 		return isFileExcluded;
 	}
 
+	private isUnixHiddenPath(filePath: string): boolean {
+		return (/(^|\/)\.[^\/\.]/g).test(filePath);
+	}
+
 	private batchSync(filePath: string, dispatcher: IFutureDispatcher, afterFileSyncAction: (deviceAppData: Mobile.IDeviceAppData, localToDevicePaths: Mobile.ILocalToDevicePathData[]) => Promise<void>, projectData: IProjectData): void {
 		let platformBatch: ISyncBatch = this.batch[this.liveSyncData.platform];
 		if (!platformBatch || !platformBatch.syncPending) {