80 lines
2.3 KiB
JavaScript
80 lines
2.3 KiB
JavaScript
'use strict';
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Object.defineProperty(exports, '__esModule', {
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value: true
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});
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exports.default = void 0;
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/**
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* Copyright (c) Facebook, Inc. and its affiliates. All Rights Reserved.
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*
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* This source code is licensed under the MIT license found in the
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* LICENSE file in the root directory of this source tree.
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*/
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/**
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* Converts a string representing an amount of memory to bytes.
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*
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* @param input The value to convert to bytes.
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* @param percentageReference The reference value to use when a '%' value is supplied.
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*/
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function stringToBytes(input, percentageReference) {
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if (input === null || input === undefined) {
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return input;
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}
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if (typeof input === 'string') {
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if (isNaN(Number.parseFloat(input.slice(-1)))) {
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// eslint-disable-next-line prefer-const
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let [, numericString, trailingChars] =
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input.match(/(.*?)([^0-9.-]+)$/i) || [];
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if (trailingChars && numericString) {
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const numericValue = Number.parseFloat(numericString);
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trailingChars = trailingChars.toLowerCase();
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switch (trailingChars) {
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case '%':
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input = numericValue / 100;
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break;
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case 'kb':
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case 'k':
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return numericValue * 1000;
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case 'kib':
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return numericValue * 1024;
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case 'mb':
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case 'm':
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return numericValue * 1000 * 1000;
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case 'mib':
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return numericValue * 1024 * 1024;
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case 'gb':
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case 'g':
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return numericValue * 1000 * 1000 * 1000;
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case 'gib':
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return numericValue * 1024 * 1024 * 1024;
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}
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}
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// It ends in some kind of char so we need to do some parsing
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} else {
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input = Number.parseFloat(input);
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}
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}
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if (typeof input === 'number') {
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if (input <= 1 && input > 0) {
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if (percentageReference) {
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return Math.floor(input * percentageReference);
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} else {
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throw new Error(
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'For a percentage based memory limit a percentageReference must be supplied'
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);
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}
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} else if (input > 1) {
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return Math.floor(input);
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} else {
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throw new Error('Unexpected numerical input');
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}
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}
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throw new Error('Unexpected input');
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}
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// https://github.com/import-js/eslint-plugin-import/issues/1590
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var _default = stringToBytes;
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exports.default = _default;
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