mirror of
https://github.com/denoland/deno.git
synced 2024-12-14 19:37:59 -05:00
72fe9bb470
This commit renames "deno_core::InternalModuleLoader" to "ExtModuleLoader" and changes the specifiers used by the modules loaded from this loader to "ext:". "internal:" scheme was really ambiguous and it's more characters than "ext:", which should result in slightly smaller snapshot size. Closes https://github.com/denoland/deno/issues/18020
40 lines
1.4 KiB
TypeScript
40 lines
1.4 KiB
TypeScript
// Copyright 2018-2023 the Deno authors. All rights reserved. MIT license.
|
|
import { fromFileUrl } from "ext:deno_node/path.ts";
|
|
|
|
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 ? fromFileUrl(path) : path;
|
|
Deno.lstat(path).then(() => callback(true), () => callback(false));
|
|
}
|
|
|
|
// 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 ? fromFileUrl(path) : path;
|
|
try {
|
|
Deno.lstatSync(path);
|
|
return true;
|
|
} catch (_err) {
|
|
return false;
|
|
}
|
|
}
|