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 { labelFormatter } from '../server/helpers/logger'
   6 import { CONFIG } from '../server/initializers/constants'
   7
   8 const excludedKeys = {
   9   level: true,
  10   message: true,
  11   splat: true,
  12   timestamp: true,
  13   label: true
  14 }
  15 function keysExcluder (key, value) {
  16   return excludedKeys[key] === true ? undefined : value
  17 }
  18
  19 const loggerFormat = winston.format.printf((info) => {
  20   let additionalInfos = JSON.stringify(info, keysExcluder, 2)
  21   if (additionalInfos === '{}') additionalInfos = ''
  22   else additionalInfos = ' ' + additionalInfos
  23
  24   return `[${info.label}] ${toTimeFormat(info.timestamp)} ${info.level}: ${info.message}${additionalInfos}`
  25 })
  26
  27 const logger = new winston.createLogger({
  28   transports: [
  29     new winston.transports.Console({
  30       level: 'debug',
  31       stderrLevels: [],
  32       format: winston.format.combine(
  33         winston.format.splat(),
  34         labelFormatter,
  35         winston.format.colorize(),
  36         loggerFormat
  37       )
  38     })
  39   ],
  40   exitOnError: true
  41 })
  42
  43 const logLevels = {
  44   error: logger.error.bind(logger),
  45   warn: logger.warn.bind(logger),
  46   info: logger.info.bind(logger),
  47   debug: logger.debug.bind(logger)
  48 }
  49
  50 const path = join(CONFIG.STORAGE.LOG_DIR, 'peertube.log')
  51 console.log('Opening %s.', path)
  52
  53 const rl = createInterface({
  54   input: createReadStream(path)
  55 })
  56
  57 rl.on('line', line => {
  58   const log = JSON.parse(line)
  59   // Don't know why but loggerFormat does not remove splat key
  60   Object.assign(log, { splat: undefined })
  61
  62   logLevels[log.level](log)
  63 })
  64
  65 function toTimeFormat (time: string) {
  66   const timestamp = Date.parse(time)
  67
  68   if (isNaN(timestamp) === true) return 'Unknown date'
  69
  70   return new Date(timestamp).toISOString()
  71 }