division/lib/extensions/helpers/logger.js

Simple yet powerful wrapper over node.js cluster API. This module is inspired by impressive, but abandoned project Cluster created by TJ Holowaychuk.

var Time, color, fs, glue, logger, mode, modes, offset,
  __slice = [].slice;

fs = require('fs');

glue = function() {
  var elements;
  elements = 1 <= arguments.length ? __slice.call(arguments, 0) : [];
  return elements.join('');
};

offset = function(value, sign, length) {
  var base;
  base = new Array(length + 1).join(sign);
  return (base + value).slice(-length);
};

Time = function() {
  var d, day, hour, min, month, ms, sec, year;
  d = new Date();
  day = d.getDate();
  month = 1 + d.getMonth();
  year = d.getFullYear();
  hour = d.getHours();
  min = d.getMinutes();
  sec = d.getSeconds();
  ms = d.getMilliseconds();
  return glue(offset(day, 0, 2), '-', offset(month, 0, 2), '-', year, ' ', offset(hour, 0, 2), ':', offset(min, 0, 2), ':', offset(sec, 0, 2), ':', offset(ms, 0, 3));
};

module.exports = logger = {};

modes = {
  error: 31,
  warn: 33,
  info: 36,
  debug: 90
};

for (mode in modes) {
  color = modes[mode];
  logger[mode] = (function(color, mode) {
    return function(message, options) {
      var label, time;
      time = Time();
      mode = offset(mode, ' ', 8);
      label = glue(mode, ' [', time, '] ');
      label = glue('\x1b[', color, 'm', label, '\x1b[0m');
      message = glue(label, message, '\n');
      if (options.file) {
        fs.writeFile(options.file, message, {
          flag: 'a',
          encoding: 'utf8'
        });
      }
      if (options.console === true) {
        return process.stderr.write(message);
      }
    };
  })(color, mode);
}