1 | 'use strict';
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2 | const {promisify} = require('util');
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3 | const fs = require('fs');
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4 |
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5 | async function isType(fsStatType, statsMethodName, filePath) {
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6 | if (typeof filePath !== 'string') {
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7 | throw new TypeError(`Expected a string, got ${typeof filePath}`);
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8 | }
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9 |
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10 | try {
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11 | const stats = await promisify(fs[fsStatType])(filePath);
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12 | return stats[statsMethodName]();
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13 | } catch (error) {
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14 | if (error.code === 'ENOENT') {
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15 | return false;
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16 | }
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17 |
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18 | throw error;
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19 | }
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20 | }
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21 |
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22 | function isTypeSync(fsStatType, statsMethodName, filePath) {
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23 | if (typeof filePath !== 'string') {
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24 | throw new TypeError(`Expected a string, got ${typeof filePath}`);
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25 | }
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26 |
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27 | try {
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28 | return fs[fsStatType](filePath)[statsMethodName]();
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29 | } catch (error) {
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30 | if (error.code === 'ENOENT') {
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31 | return false;
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32 | }
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33 |
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34 | throw error;
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35 | }
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36 | }
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37 |
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38 | exports.isFile = isType.bind(null, 'stat', 'isFile');
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39 | exports.isDirectory = isType.bind(null, 'stat', 'isDirectory');
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40 | exports.isSymlink = isType.bind(null, 'lstat', 'isSymbolicLink');
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41 | exports.isFileSync = isTypeSync.bind(null, 'statSync', 'isFile');
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42 | exports.isDirectorySync = isTypeSync.bind(null, 'statSync', 'isDirectory');
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43 | exports.isSymlinkSync = isTypeSync.bind(null, 'lstatSync', 'isSymbolicLink');
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