/**
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */ import winston from 'winston' ; interface LoggingOptionsType { silent : boolean ; logLevel : string ; logToFile : boolean ; logFilename : string ; } export function createLogger ( opts ) { const logTransports = [ new winston . transports . Console ( { handleExceptions : true } ) , ] ; if ( opts . logToFile && opts . logFilename ) { logTransports . push ( new winston . transports . File ( { filename : opts . logFilename , handleExceptions : true , } ) ) ; } return winston . createLogger ( { level : opts . logLevel , transports : logTransports , format : winston . format . combine ( winston . format . errors ( { stack : true } ) , winston . format . json ( ) ) , silent : opts . silent , } ) ; }