blob: b5bbe235a44b7b40192fd28598aa976f4786fb6d (
plain)
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
|
// Copyright 2018-2024 the Deno authors. All rights reserved. MIT license.
// TODO(petamoriken): enable prefer-primordials for node polyfills
// deno-lint-ignore-file prefer-primordials
import { op_node_fs_exists, op_node_fs_exists_sync } from "ext:core/ops";
import { pathFromURL } from "ext:deno_web/00_infra.js";
type ExistsCallback = (exists: boolean) => void;
/**
* TODO: Also accept 'path' parameter as a Node polyfill Buffer type once these
* are implemented. See https://github.com/denoland/deno/issues/3403
* Deprecated in node api
*/
export function exists(path: string | URL, callback: ExistsCallback) {
path = path instanceof URL ? pathFromURL(path) : path;
op_node_fs_exists(path).then(callback);
}
// The callback of fs.exists doesn't have standard callback signature.
// We need to provide special implementation for promisify.
// See https://github.com/nodejs/node/pull/13316
const kCustomPromisifiedSymbol = Symbol.for("nodejs.util.promisify.custom");
Object.defineProperty(exists, kCustomPromisifiedSymbol, {
value: (path: string | URL) => {
return new Promise((resolve) => {
exists(path, (exists) => resolve(exists));
});
},
});
/**
* TODO: Also accept 'path' parameter as a Node polyfill Buffer or URL type once these
* are implemented. See https://github.com/denoland/deno/issues/3403
*/
export function existsSync(path: string | URL): boolean {
path = path instanceof URL ? pathFromURL(path) : path;
return op_node_fs_exists_sync(path);
}
|
