@chainsafe/eth2.0-utils/lib/logger/winston.js

Utilities required across multiple lodestar packages

"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.WinstonLogger = void 0;

var _winston = require("winston");

var _interface = require("./interface");

var _chalk = _interopRequireDefault(require("chalk"));

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

function ownKeys(object, enumerableOnly) { var keys = Object.keys(object); if (Object.getOwnPropertySymbols) { var symbols = Object.getOwnPropertySymbols(object); if (enumerableOnly) symbols = symbols.filter(function (sym) { return Object.getOwnPropertyDescriptor(object, sym).enumerable; }); keys.push.apply(keys, symbols); } return keys; }

function _objectSpread(target) { for (var i = 1; i < arguments.length; i++) { var source = arguments[i] != null ? arguments[i] : {}; if (i % 2) { ownKeys(Object(source), true).forEach(function (key) { _defineProperty(target, key, source[key]); }); } else if (Object.getOwnPropertyDescriptors) { Object.defineProperties(target, Object.getOwnPropertyDescriptors(source)); } else { ownKeys(Object(source)).forEach(function (key) { Object.defineProperty(target, key, Object.getOwnPropertyDescriptor(source, key)); }); } } return target; }

function _defineProperty(obj, key, value) { if (key in obj) { Object.defineProperty(obj, key, { value: value, enumerable: true, configurable: true, writable: true }); } else { obj[key] = value; } return obj; }

class WinstonLogger {
  constructor(options) {
    _defineProperty(this, "winston", void 0);

    _defineProperty(this, "_level", void 0);

    _defineProperty(this, "_silent", void 0);

    options = _objectSpread({
      level: _interface.LogLevel[_interface.defaultLogLevel],
      module: ""
    }, options);
    this.winston = (0, _winston.createLogger)({
      level: _interface.LogLevel[_interface.LogLevel.verbose],
      // log level switching handled in `createLogEntry`
      defaultMeta: {
        module: options.module || ""
      },
      transports: [new _winston.transports.Console({
        format: _winston.format.combine(_winston.format.colorize(), _winston.format.timestamp({
          format: "YYYY-MM-DD HH:mm:ss"
        }), _winston.format.printf(info => {
          const paddingBetweenInfo = 30;
          const infoString = info.module || info.namespace || "";
          const infoPad = paddingBetweenInfo - infoString.length;
          return "".concat(info.timestamp, "  [").concat(infoString.toUpperCase(), "] ").concat(info.level.padStart(infoPad), ": ").concat(info.message);
        })),
        handleExceptions: true
      })],
      exitOnError: false
    }); //@ts-ignore

    this._level = _interface.LogLevel[options.level];
    this._silent = false;

    if (typeof process !== "undefined" && typeof process.env !== "undefined") {
      this._silent = process.env.LODESTAR_SILENCE === "true";
    }
  }

  debug(message, context) {
    this.createLogEntry(_interface.LogLevel.debug, message, context);
  }

  info(message, context) {
    this.createLogEntry(_interface.LogLevel.info, message, context);
  }

  important(message, context) {
    this.createLogEntry(_interface.LogLevel.info, _chalk.default.red(message), context);
  }

  error(message, context) {
    this.createLogEntry(_interface.LogLevel.error, message, context);
  }

  warn(message, context) {
    this.createLogEntry(_interface.LogLevel.warn, message, context);
  }

  verbose(message, context) {
    this.createLogEntry(_interface.LogLevel.verbose, message, context);
  }

  silly(message, context) {
    this.createLogEntry(_interface.LogLevel.silly, message, context);
  }

  set level(level) {
    this.winston.level = _interface.LogLevel[level];
    this._level = level;
  }

  get level() {
    return this._level;
  }

  set silent(silent) {
    this._silent = silent;
  }

  get silent() {
    return this._silent;
  }

  child(options) {
    const logger = Object.create(WinstonLogger.prototype);
    const winston = this.winston.child({
      namespace: options.module
    });
    return Object.assign(logger, {
      winston,
      _level: options.level,
      _silent: this._silent
    });
  }

  createLogEntry(level, message, context = {}) {
    if (this.silent || level > this._level) {
      return;
    }

    if (typeof message === "object") {
      this.winston.log(_interface.LogLevel[level], JSON.stringify(message));
    } else {
      this.winston.log(_interface.LogLevel[level], message, context);
    }
  }

}

exports.WinstonLogger = WinstonLogger;
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