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‎History.md

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‎Makefile

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‎Readme.md

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‎example.js

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/**
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* Module dependencies.
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*/
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var Log = require('./lib/log');
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var log = new Log(Log.INFO);
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log.debug('preparing email');
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log.info('sending email');
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log.error('failed to send email');

‎lib/log.js

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/*!
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* Log.js
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* Copyright(c) 2010 TJ Holowaychuk <tj@vision-media.ca>
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* MIT Licensed
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*/
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/**
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* Initialize a `Loggeer` with the given log `level` defaulting
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* to __DEBUG__ and `stream` defaulting to _stdout_.
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*
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* @param {Number} level
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* @param {Object} stream
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* @api public
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*/
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var Log = exports = module.exports = function Log(level, stream){
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this.level = level || exports.DEBUG;
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this.stream = stream || process.stdout;
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};
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/**
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* System is unusable.
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*
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* @type Number
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*/
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exports.EMERGENCY = 0;
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/**
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* Action must be taken immediately.
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*
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* @type Number
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*/
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exports.ALERT = 1;
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/**
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* Critical condition.
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*
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* @type Number
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*/
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exports.CRITICAL = 2;
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/**
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* Error condition.
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*
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* @type Number
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*/
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exports.ERROR = 3;
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/**
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* Warning condition.
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*
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* @type Number
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*/
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exports.WARNING = 4;
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/**
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* Normal but significant condition.
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*
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* @type Number
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*/
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exports.NOTICE = 5;
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/**
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* Purely informational message.
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*
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* @type Number
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*/
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exports.INFO = 6;
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/**
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* Application debug messages.
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*
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* @type Number
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*/
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exports.DEBUG = 7;
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/**
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* prototype.
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*/
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Log.prototype = {
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/**
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* Log output message.
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*
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* @param {String} levelStr
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* @param {String} msg
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* @api private
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*/
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log: function(levelStr, msg) {
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if (exports[levelStr] <= this.level) {
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this.stream.write([
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'[' + (new Date).toUTCString() + ']'
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, '-'
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, levelStr
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, '-'
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, msg
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].join(' ' ) + '\n');
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}
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},
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/**
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* Log emergency `msg`.
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*
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* @param {String} msg
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* @api public
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*/
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emergency: function(msg){
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this.log('EMERGENCY', msg);
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},
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/**
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* Log alert `msg`.
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*
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* @param {String} msg
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* @api public
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*/
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alert: function(msg){
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this.log('ALERT', msg);
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},
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/**
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* Log critical `msg`.
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*
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* @param {String} msg
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* @api public
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*/
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critical: function(msg){
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this.log('CRITICAL', msg);
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},
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/**
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* Log error `msg`.
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*
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* @param {String} msg
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* @api public
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*/
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error: function(msg){
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this.log('ERROR', msg);
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},
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/**
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* Log warning `msg`.
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*
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* @param {String} msg
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* @api public
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*/
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warning: function(msg){
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this.log('WARNING', msg);
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},
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/**
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* Log notice `msg`.
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*
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* @param {String} msg
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* @api public
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*/
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notice: function(msg){
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this.log('NOTICE', msg);
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},
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/**
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* Log info `msg`.
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*
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* @param {String} msg
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* @api public
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*/
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info: function(msg){
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this.log('INFO', msg);
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},
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/**
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* Log debug `msg`.
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*
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* @param {String} msg
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* @api public
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*/
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debug: function(msg){
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this.log('DEBUG', msg);
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}
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};

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