/usr/lib/nodejs/mz/fs.js is in node-mz 2.7.0-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 | var Promise = require('any-promise')
var fs
try {
fs = require('graceful-fs')
} catch(err) {
fs = require('fs')
}
var api = [
'appendFile',
'chmod',
'chown',
'close',
'fchmod',
'fchown',
'fdatasync',
'fstat',
'fsync',
'ftruncate',
'futimes',
'lchown',
'link',
'lstat',
'mkdir',
'open',
'read',
'readFile',
'readdir',
'readlink',
'realpath',
'rename',
'rmdir',
'stat',
'symlink',
'truncate',
'unlink',
'utimes',
'write',
'writeFile'
]
typeof fs.access === 'function' && api.push('access')
typeof fs.copyFile === 'function' && api.push('copyFile')
typeof fs.mkdtemp === 'function' && api.push('mkdtemp')
require('thenify-all').withCallback(fs, exports, api)
exports.exists = function (filename, callback) {
// callback
if (typeof callback === 'function') {
return fs.stat(filename, function (err) {
callback(null, !err);
})
}
// or promise
return new Promise(function (resolve) {
fs.stat(filename, function (err) {
resolve(!err)
})
})
}
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