FM / bytes

/usr/lib/node_modules/pm2/node_modules/bytes/

/usr/lib/node_modules/pm2/node_modules/bytes

Name	Size	Mode	Actions
History.md	1581	0644	edit dl rm
index.js	3469	0644	edit dl rm
LICENSE	1153	0644	edit dl rm
package.json	1997	0644	edit dl rm
Readme.md	3890	0644	edit dl rm

Edit: /usr/lib/node_modules/pm2/node_modules/bytes/index.js (3469B)

/*!
 * bytes
 * Copyright(c) 2012-2014 TJ Holowaychuk
 * Copyright(c) 2015 Jed Watson
 * MIT Licensed
 */

'use strict';

/**
 * Module exports.
 * @public
 */

module.exports = bytes;
module.exports.format = format;
module.exports.parse = parse;

/**
 * Module variables.
 * @private
 */

var formatThousandsRegExp = /\B(?=(\d{3})+(?!\d))/g;

var formatDecimalsRegExp = /(?:\.0*|(\.[^0]+)0+)$/;

var map = {
  b:  1,
  kb: 1 << 10,
  mb: 1 << 20,
  gb: 1 << 30,
  tb: Math.pow(1024, 4),
  pb: Math.pow(1024, 5),
};

var parseRegExp = /^((-|\+)?(\d+(?:\.\d+)?)) *(kb|mb|gb|tb|pb)$/i;

/**
 * Convert the given value in bytes into a string or parse to string to an integer in bytes.
 *
 * @param {string|number} value
 * @param {{
 *  case: [string],
 *  decimalPlaces: [number]
 *  fixedDecimals: [boolean]
 *  thousandsSeparator: [string]
 *  unitSeparator: [string]
 *  }} [options] bytes options.
 *
 * @returns {string|number|null}
 */

function bytes(value, options) {
  if (typeof value === 'string') {
    return parse(value);
  }

if (typeof value === 'number') {
    return format(value, options);
  }

return null;
}

/**
 * Format the given value in bytes into a string.
 *
 * If the value is negative, it is kept as such. If it is a float,
 * it is rounded.
 *
 * @param {number} value
 * @param {object} [options]
 * @param {number} [options.decimalPlaces=2]
 * @param {number} [options.fixedDecimals=false]
 * @param {string} [options.thousandsSeparator=]
 * @param {string} [options.unit=]
 * @param {string} [options.unitSeparator=]
 *
 * @returns {string|null}
 * @public
 */

function format(value, options) {
  if (!Number.isFinite(value)) {
    return null;
  }

var mag = Math.abs(value);
  var thousandsSeparator = (options && options.thousandsSeparator) || '';
  var unitSeparator = (options && options.unitSeparator) || '';
  var decimalPlaces = (options && options.decimalPlaces !== undefined) ? options.decimalPlaces : 2;
  var fixedDecimals = Boolean(options && options.fixedDecimals);
  var unit = (options && options.unit) || '';

if (!unit || !map[unit.toLowerCase()]) {
    if (mag >= map.pb) {
      unit = 'PB';
    } else if (mag >= map.tb) {
      unit = 'TB';
    } else if (mag >= map.gb) {
      unit = 'GB';
    } else if (mag >= map.mb) {
      unit = 'MB';
    } else if (mag >= map.kb) {
      unit = 'KB';
    } else {
      unit = 'B';
    }
  }

var val = value / map[unit.toLowerCase()];
  var str = val.toFixed(decimalPlaces);

if (!fixedDecimals) {
    str = str.replace(formatDecimalsRegExp, '$1');
  }

if (thousandsSeparator) {
    str = str.replace(formatThousandsRegExp, thousandsSeparator);
  }

return str + unitSeparator + unit;
}

/**
 * Parse the string value into an integer in bytes.
 *
 * If no unit is given, it is assumed the value is in bytes.
 *
 * @param {number|string} val
 *
 * @returns {number|null}
 * @public
 */

function parse(val) {
  if (typeof val === 'number' && !isNaN(val)) {
    return val;
  }

if (typeof val !== 'string') {
    return null;
  }

// Test if the string passed is valid
  var results = parseRegExp.exec(val);
  var floatValue;
  var unit = 'b';

if (!results) {
    // Nothing could be extracted from the given string
    floatValue = parseInt(val, 10);
    unit = 'b'
  } else {
    // Retrieve the value and the unit
    floatValue = parseFloat(results[1]);
    unit = results[4].toLowerCase();
  }

return Math.floor(map[unit] * floatValue);
}

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