Straight forward zero-dependency disk logger. 

Straight forward zero-dependency disk logger

hij1nx

raynos

append-fs-logger

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const { wrapf, WError } = require('./error.js')

const { resultify } = require('./resultify.js')

const pipeline = resultify(stream.pipeline)

const MAX_LOG_FILE_SIZE = 32 * 1024 * 1024

const hostname = require('os').hostname()

const RENDER_PREFIX = '\u001b[35mrend\u001b[39m '

const MAIN_PREFIX = '\u001b[32mmain\u001b[39m '

  constructor (name, level, msg, info, time, truncated) {

    /** @Raynos TODO: millisecond or string ? */

    this.time = new Date(time).toISOString()

    /** @Raynos TODO: this.src; this.component; ? */

    assert(options.fileName, 'options.fileName required')

    this.logFileLocation = options.fileName

    this.onError = options.onError || warnOnError

    // Current size of the file after writing

    // Total cumulative bytes written by logger to fd.

    // Internal fs.write() counter for testing

    // Tracking where all the new lines are in the file.

      return { err: new Error('Cannot open twice()') }

      await readFile(this.logFileLocation)

    if (readErr && readErr.code !== 'ENOENT') {

        'Could not read old file', readErr, {

          fileName: this.logFileLocation,

     * We want to keep track of the size of the file and

     * the number of lines that it contains.

      const newLineByte = '\n'.charCodeAt(0)

      for (let i = 0; i < buf.length; i++) {

      this.lines = this.newLineOffsets.length

      await open(this.logFileLocation, 'a+')

    assert(!options.shortName || options.shortName.length <= 7,

      'options.shortName must be 7 char or less')

    this.fsLogger = new AppendOnlyFSLogger(productName, options)

    this.console = options.console || false

      ? options.shortName.padStart(7, ' ') : ''

        ? `${this.shortName}:main` : 'main'

      this.prefix = green(mainPrefix) + ' '

      ? `${this.shortName}:rend` : 'rend'

    this.renderPrefix = magenta(renderPrefix) + ' '

    this._log(level, msg, info, timestamp, RENDER_PREFIX)

    this._log(level, msg, info, timestamp, this.renderPrefix)

  _log (level, msg, info, timestamp, prefix) {

      throw new Error('Must call open() first.')

    if (!msg || typeof msg !== 'string') {

      throw new Error(level + '(msg); msg is mandatory')

    if (info && typeof info !== 'object') {

      throw new Error(level + '(msg, info); info must be object')

      for (const k of Object.keys(info)) {

          info[k] = errorToObject(info[k])

      this._logConsole(level, msg, info, timestamp, prefix)

    return this.fsLogger._write(level, msg, info, timestamp)

  _logConsole (level, msg, info, timestamp, prefix) {

    let timeStr = shortFormateTime(timestamp)

        ? yellow(timeStr) : level === 'error'

    let infoText = info ? util.inspect(info, {

      infoText = infoText.slice(0, 8 * 1024 - 3) + '...\u001b[39m'

    const consoleLogText = `${timeStr} › ${msg}: ${infoText}`

      console.error(prefix + consoleLogText)

      console.log(prefix + consoleLogText)

    return this._log('info', msg, info, Date.now(), this.prefix)

    return this._log('warn', msg, info, Date.now(), this.prefix)

    return this._log('error', msg, info, Date.now(), this.prefix)

    if (Object.prototype.toString.call(err) === '[object Error]') {

    stack += '\nCaused by: ' + stackToString(causeError)

  return '\u001b[32m' + text + '\u001b[39m'

  return '\u001b[35m' + text + '\u001b[39m'

  "description": "Straight forward zero-dependency disk logger",

    "test": "npm run lint && node test/index.js",

    "vendor": "npm run vendor:resultify && npm run vendor:error",

    "vendor:resultify": "cp node_modules/resultify/index.js resultify.js; sed -i '1s;^;// Copied from resultify@1.1.2.\\n;' resultify.js;",

    "vendor:error": "cp node_modules/error/index.js error.js; sed -i '1s;^;// Copied from error@10.2.0.\\n;' error.js;"

  "author": "Raynos <raynos2@gmail.com>",

  "repository": "git://github.com/optoolco/append-fs-logger.git",

  "homepage": "https://github.com/optoolco/append-fs-logger",

    "url": "https://github.com/optoolco/append-fs-logger/issues",

      "url": "http://github.com/optoolco/append-fs-logger/raw/master/LICENSE"

		@@ -26,5 +26,2 @@ 'use strict'

		const RENDER_PREFIX = '\u001b[35mrend\u001b[39m '
		const MAIN_PREFIX = '\u001b[32mmain\u001b[39m '

		class OpenFailError extends WError {
		@@ -408,2 +405,4 @@ constructor (message, cause, info) {
		assert(options.fileName, 'options.fileName required')
		assert(!options.shortName \|\| options.shortName.length <= 7,
		'options.shortName must be 7 char or less')

		@@ -413,5 +412,15 @@ this.fsLogger = new AppendOnlyFSLogger(productName, options)
		this.console = options.console \|\| false
		this.prefix = options.prefix \|\| (
		options.isMain ? MAIN_PREFIX : ''
		)
		this.shortName = options.shortName
		? options.shortName.padStart(7, ' ') : ''
		this.prefix = options.prefix \|\| ''

		if (options.isMain) {
		const mainPrefix = this.shortName
		? `${this.shortName}:main` : 'main'
		this.prefix = green(mainPrefix) + ' '
		}

		const renderPrefix = this.shortName
		? `${this.shortName}:rend` : 'rend'
		this.renderPrefix = magenta(renderPrefix) + ' '
		}
		@@ -428,3 +437,3 @@
		logIPC (level, msg, info, timestamp) {
		this._log(level, msg, info, timestamp, RENDER_PREFIX)
		this._log(level, msg, info, timestamp, this.renderPrefix)
		}
		@@ -579,1 +588,9 @@
		}

		function green (text) {
		return '\u001b[32m' + text + '\u001b[39m'
		}

		function magenta (text) {
		return '\u001b[35m' + text + '\u001b[39m'
		}

		{
		"name": "append-fs-logger",
		"version": "1.0.2",
		"version": "1.1.0",
		"description": "Straight forward zero-dependency disk logger",
		@@ -5,0 +5,0 @@ "main": "index.js",

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