require cache issue

gistfile1.txt

const fs = require('fs');

try {
  require('my-package');
  console.log('succuss require my-package');
} catch (err) {
  console.log('failed require my-package');
}

fs.symlinkSync('pathToMyPackageInAnotherFolder', './node_modules/my-package', 'dir');

try {
  require('my-package');

  console.log('succuss require my-package');
} catch (err) {

  console.log('failed require my-package');
}

I have created a repo that demonstrates the issue: https://github.com/zkochan/require-symlink-issue

Sure (I was a little surprised my initial test worked) though Node generally doesn't make guarantees about what require does in these scenarios so it working or not is happenstance and I doubt this would be fixed as a bug.

I recall a lot of issues around this behavior (and --preseve-symlinks) and if I recall correctly it stalled on someone doing the work. I think those discussions predate the loader/modules team and I'm not even sure if cjs is in scope for that team. If I recall correctly you participated in those discussions too - right?

I would bring up your use case (presumably bit's or pnpm's?) in nodejs/node - I suspect it's significantly easier to do/workaround than before and I suspect that if pnpm puts its weight behind this and changing it doesn't cause ecosystem breakage it has a good chance of being done.

(You can of course work around it by symlinking to an entry in the same subpath and using that as a "jump off" point to require the other path - but that may probably break without notice in Node.js at any time)

It is not related to symlinks. I updated the example to use real files.

And I have filed an issue in node.js: nodejs/node#44663