scripts/parse-log.ts

   1 import { createReadStream } from 'fs'
   2 import { join } from 'path'
   3 import { createInterface } from 'readline'
   4 import * as winston from 'winston'
   5 import { CONFIG } from '../server/initializers/constants'
   6
   7 const label = CONFIG.WEBSERVER.HOSTNAME + ':' + CONFIG.WEBSERVER.PORT
   8
   9 const logger = new winston.Logger({
  10   transports: [
  11     new winston.transports.Console({
  12       level: 'debug',
  13       label: label,
  14       handleExceptions: true,
  15       humanReadableUnhandledException: true,
  16       json: false,
  17       colorize: true,
  18       prettyPrint: true,
  19       stderrLevels: []
  20     })
  21   ],
  22   exitOnError: true
  23 })
  24
  25 const logLevels = {
  26   error: logger.error,
  27   warn: logger.warn,
  28   info: logger.info,
  29   debug: logger.debug
  30 }
  31
  32 const path = join(CONFIG.STORAGE.LOG_DIR, 'all-logs.log')
  33 console.log('Opening %s.', path)
  34
  35 const rl = createInterface({
  36   input: createReadStream(path)
  37 })
  38
  39 rl.on('line', line => {
  40   const log = JSON.parse(line)
  41   const additionalInfo: any = {}
  42
  43   Object.keys(log).forEach(logKey => {
  44     if (logKey !== 'message' && logKey !== 'level') additionalInfo[logKey] = log[logKey]
  45   })
  46
  47   logLevels[log.level](log.message, additionalInfo)
  48 })