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Currently `fs.exists` and `fs.existsSync` throws error when invalid path is given to the input. The expected behavior is to: - Call the callback with false on `fs.exists`. - Return false on `fs.existsSync`. Towards #29972, #24236
56 lines
1.6 KiB
TypeScript
56 lines
1.6 KiB
TypeScript
// Copyright 2018-2025 the Deno authors. MIT license.
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import { op_node_fs_exists, op_node_fs_exists_sync } from "ext:core/ops";
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import { getValidatedPathToString } from "ext:deno_node/internal/fs/utils.mjs";
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import { primordials } from "ext:core/mod.js";
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import { makeCallback } from "ext:deno_node/_fs/_fs_common.ts";
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import type { Buffer } from "node:buffer";
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import * as pathModule from "node:path";
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import { kCustomPromisifiedSymbol } from "ext:deno_node/internal/util.mjs";
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const { ObjectDefineProperty, Promise, PromisePrototypeThen } = primordials;
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type ExistsCallback = (exists: boolean) => void;
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/**
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* Deprecated in node api
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*/
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export function exists(path: string | Buffer | URL, callback: ExistsCallback) {
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callback = makeCallback(callback);
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try {
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path = getValidatedPathToString(path);
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} catch {
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callback(false);
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return;
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}
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PromisePrototypeThen(
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op_node_fs_exists(pathModule.toNamespacedPath(path)),
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callback,
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);
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}
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// The callback of fs.exists doesn't have standard callback signature.
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// We need to provide special implementation for promisify.
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// See https://github.com/nodejs/node/pull/13316
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ObjectDefineProperty(exists, kCustomPromisifiedSymbol, {
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__proto__: null,
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value: (path: string | URL) => {
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return new Promise((resolve) => {
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exists(path, (exists) => resolve(exists));
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});
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},
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enumerable: false,
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writable: false,
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configurable: true,
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});
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export function existsSync(path: string | Buffer | URL): boolean {
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try {
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path = getValidatedPathToString(path);
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} catch {
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return false;
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}
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return op_node_fs_exists_sync(pathModule.toNamespacedPath(path));
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}
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