| /** |
| * 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: LoggingOptionsType) { |
| const logTransports: Array<winston.transport> = [ |
| 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, |
| }); |
| } |