75 lines
2.1 KiB
JavaScript
75 lines
2.1 KiB
JavaScript
import config from './load-config'
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import path from 'path'
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import util from 'util'
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import fs from 'fs-extra'
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let lfs
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const pz = z => z < 10 ? '0' + z : z
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// Time stamp constructor
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function dateFormat (date) {
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return date.getDate() + '/' + (date.getMonth() + 1) + '/' + date.getFullYear() + ' ' +
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pz(date.getHours()) + ':' + pz(date.getMinutes()) + ':' + pz(date.getSeconds())
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}
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// Console.log/error/warn "middleware" - add timestamp and write to file
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function stampAndWrite (fnc, color, prfx, message) {
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const prefix = '[' + prfx + '] [' + dateFormat(new Date()) + '] '
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message = color + prefix + message + ((color && color !== '') ? '\x1b[0m' : '')
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message = message.replace(/\\u001b/g, '\x1b')
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if (lfs) {
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// eslint-disable-next-line no-control-regex
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lfs.write(message.replace(/(\u001b\[\d\d?m)/g, '') + '\n')
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}
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fnc.call(this, message)
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}
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// Reassign logger functions and send them to the "middleware"
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const realConsoleLog = console.log
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console.log = function () {
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const message = util.format.apply(null, arguments)
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stampAndWrite.call(this, realConsoleLog, '', 'info', message)
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}
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const realConsoleWarn = console.warn
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console.warn = function () {
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const message = util.format.apply(null, arguments)
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stampAndWrite.call(this, realConsoleWarn, '\x1b[33m', 'warn', message)
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}
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const realConsoleError = console.error
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console.error = function () {
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const message = util.format.apply(null, arguments)
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stampAndWrite.call(this, realConsoleError, '\x1b[31m', ' err', message)
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}
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async function initializeLogger () {
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const logPath = path.resolve(config.logger.file)
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// Only throw bad permission errors
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try {
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await fs.access(logPath, fs.W_OK)
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} catch (e) {
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if (e.code !== 'ENOENT') throw e
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}
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try {
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lfs = fs.createWriteStream(logPath, { flags: 'a' })
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} catch (e) {
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lfs = null
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console.error('Failed to initiate log file write stream')
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// Rethrow error
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throw e
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}
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}
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export function initialize () {
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// Create log file write stream
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if (!config.logger || !config.logger.write) return
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initializeLogger().catch((e) => console.error(e))
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}
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