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exists.ts
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exists.ts
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// Copyright 2018-2022 the Deno authors. All rights reserved. MIT license.
/**
* Test whether or not the given path exists by checking with the file system
* @deprecated Checking the state of a file before using it causes a race condition. Perform the actual operation directly instead.
* @see https://en.wikipedia.org/wiki/Time-of-check_to_time-of-use
*/
export async function exists(filePath: string): Promise<boolean> {
try {
await Deno.lstat(filePath);
return true;
} catch (err) {
if (err instanceof Deno.errors.NotFound) {
return false;
}
throw err;
}
}
/**
* Test whether or not the given path exists by checking with the file system
* @deprecated Checking the state of a file before using it causes a race condition. Perform the actual operation directly instead.
* @see https://en.wikipedia.org/wiki/Time-of-check_to_time-of-use
*/
export function existsSync(filePath: string): boolean {
try {
Deno.lstatSync(filePath);
return true;
} catch (err) {
if (err instanceof Deno.errors.NotFound) {
return false;
}
throw err;
}
}