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Pengling

•Created by Pengling on 2/17/2025 in #help

Cannot copy files from `AppData/Local/` despite --allow-all flag

Description When attempting to copy a file from AppData/Local/ using @std/fs in Deno, the operation fails with a PermissionDenied (os error 5). This occurs even when running Deno with the --allow-all flag. Code Sample

import { copy } from "@std/fs";

const path = `C:/Users/USER/AppData/Local/deno/latest.txt`;
const target = `S:/foo/`;

const CopyOptions = { overwrite: true, preserveTimestamps: false };

try {
    await copy(path, target, CopyOptions);
} catch (error) {
    console.error(error);
}

import { copy } from "@std/fs";

const path = `C:/Users/USER/AppData/Local/deno/latest.txt`;
const target = `S:/foo/`;

const CopyOptions = { overwrite: true, preserveTimestamps: false };

try {
    await copy(path, target, CopyOptions);
} catch (error) {
    console.error(error);
}

deno run --allow-all sample.ts

deno run --allow-all sample.ts

Error

PermissionDenied: Access is denied. (os error 5): copy 'C:\Users\USER\AppData\Local\deno\latest.txt' -> 'S:\foo\'
    at async Object.copyFile (ext:deno_fs/30_fs.js:145:3)
    at async copyFile (https://jsr.io/@std/fs/1.0.13/copy.ts:108:3)
    at async copy (https://jsr.io/@std/fs/1.0.13/copy.ts:333:5)
  name: "PermissionDenied",
  code: "EPERM"
}

PermissionDenied: Access is denied. (os error 5): copy 'C:\Users\USER\AppData\Local\deno\latest.txt' -> 'S:\foo\'
    at async Object.copyFile (ext:deno_fs/30_fs.js:145:3)
    at async copyFile (https://jsr.io/@std/fs/1.0.13/copy.ts:108:3)
    at async copy (https://jsr.io/@std/fs/1.0.13/copy.ts:333:5)
  name: "PermissionDenied",
  code: "EPERM"
}

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