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Fix bug where fs.exists is incorrectly promisified #835

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merged 1 commit into from Mar 16, 2021
Merged

Fix bug where fs.exists is incorrectly promisified #835

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10 changes: 9 additions & 1 deletion packages/node-resolve/src/fs.js
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Expand Up @@ -2,8 +2,16 @@ import fs from 'fs';

import { promisify } from 'util';

export const exists = promisify(fs.exists);
export const access = promisify(fs.access);
export const readFile = promisify(fs.readFile);
export const realpath = promisify(fs.realpath);
export { realpathSync } from 'fs';
export const stat = promisify(fs.stat);
export async function exists(filePath) {
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@merceyz merceyz Mar 13, 2021 •
edited

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Since fs.exists is just a wrapper around fs.access you should use that to make sure the behaviour is the same and to not unnecessarily create the stat object just to throw it away

https://github.com/nodejs/node/blob/5ff2e582cd867feba71bb13d9d8bed9953721145/lib/fs.js#L240-L252

try {
await access(filePath);
return true;
} catch {
return false;
}
}