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import * as program from 'commander'
import { createReadStream, readdir } from 'fs-extra'
import { join } from 'path'
import { createInterface } from 'readline'
import * as winston from 'winston'
import { labelFormatter } from '../server/helpers/logger'
import { CONFIG } from '../server/initializers/config'
import { mtimeSortFilesDesc } from '../shared/utils/logs/logs'
program
.option('-l, --level [level]', 'Level log (debug/info/warn/error)')
.parse(process.argv)
const excludedKeys = {
level: true,
message: true,
splat: true,
timestamp: true,
label: true
}
function keysExcluder (key, value) {
return excludedKeys[key] === true ? undefined : value
}
const loggerFormat = winston.format.printf((info) => {
let additionalInfos = JSON.stringify(info, keysExcluder, 2)
if (additionalInfos === '{}') additionalInfos = ''
else additionalInfos = ' ' + additionalInfos
return `[${info.label}] ${toTimeFormat(info.timestamp)} ${info.level}: ${info.message}${additionalInfos}`
})
const logger = winston.createLogger({
transports: [
new winston.transports.Console({
level: program['level'] || 'debug',
stderrLevels: [],
format: winston.format.combine(
winston.format.splat(),
labelFormatter,
winston.format.colorize(),
loggerFormat
)
})
],
exitOnError: true
})
const logLevels = {
error: logger.error.bind(logger),
warn: logger.warn.bind(logger),
info: logger.info.bind(logger),
debug: logger.debug.bind(logger)
}
run()
.then(() => process.exit(0))
.catch(err => console.error(err))
function run () {
return new Promise(async res => {
const logFiles = await readdir(CONFIG.STORAGE.LOG_DIR)
const lastLogFile = await getNewestFile(logFiles, CONFIG.STORAGE.LOG_DIR)
const path = join(CONFIG.STORAGE.LOG_DIR, lastLogFile)
console.log('Opening %s.', path)
const stream = createReadStream(path)
const rl = createInterface({
input: stream
})
rl.on('line', line => {
const log = JSON.parse(line)
// Don't know why but loggerFormat does not remove splat key
Object.assign(log, { splat: undefined })
logLevels[ log.level ](log)
})
stream.once('close', () => res())
})
}
// Thanks: https://stackoverflow.com/a/37014317
async function getNewestFile (files: string[], basePath: string) {
const sorted = await mtimeSortFilesDesc(files, basePath)
return (sorted.length > 0) ? sorted[ 0 ].file : ''
}
function toTimeFormat (time: string) {
const timestamp = Date.parse(time)
if (isNaN(timestamp) === true) return 'Unknown date'
return new Date(timestamp).toISOString()
}
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