expandGlob always requires read access to CWD

[thomaslaurie]

Regardless of the root specified, running expandGlob will prompt for --allow-read access to the CWD.

main.ts:

import {expandGlob} from 'https://deno.land/[email protected]/fs/expand_glob.ts';

for await (const entry of expandGlob('**/*.js', {root: './subfolder'})) {
	console.log(entry);
}

Running deno run main.ts --allow-read=./subfolder

will produce:

⚠️  ️Deno requests read access to <CWD>. Run again with --allow-read to bypass this prompt.
   Allow? [y/n (y = yes allow, n = no deny)]  n
error: Uncaught PermissionDenied: Requires read access to <CWD>, run again with the --allow-read flag
    : joinGlobs([Deno.cwd(), root], globOptions);
                      ^
    at Object.opSync (deno:core/01_core.js:172:12)
    at Object.cwd (deno:runtime/js/30_fs.js:65:17)
    at expandGlob (https://deno.land/[email protected]/fs/expand_glob.ts:87:23)
    at expandGlob.next (<anonymous>)
    at file:///C:/path/to/main.ts:5:18

Swapping both or either of the root or --allow-read paths for absolute paths produces a similar permission denial:

⚠️  ️Deno requests read access to "C:\path\to\subfolder". Run again with --allow-read to bypass this prompt.
   Allow? [y/n (y = yes allow, n = no deny)]  n
error: Uncaught (in promise) PermissionDenied: Requires read access to "C:\path\to\subfolder", run again with the --allow-read flag
  const info = await Deno.stat(path);
               ^
    at async Object.stat (deno:runtime/js/30_fs.js:230:17)
    at async _createWalkEntry (https://deno.land/[email protected]/fs/walk.ts:25:16)
    at async expandGlob (https://deno.land/[email protected]/fs/expand_glob.ts:108:21)        
    at async file:///C:/path/to/main.ts:5:18        

Expected behavior

Using a root path that is within the boundary granted by --allow-read should just work, it should not prompt for read permissions of the entire CWD.

Environment

• OS: Windows 11
• deno version: 1.22.2
• std version: 0.95.0

[iuioiua]

Related: #1136.