`attw.excludeEntrypoints` option has no effect

[overlookmotel]

The excludeEntrypoints option in attw config doesn't seem to exclude the specified entrypoints.

Reproduction

// tsdown.config.ts
export default defineConfig({
  entry: ["src/index.ts"],
  attw: {
    profile: "esm-only",
    excludeEntrypoints: [/^\.\/test\/fixtures\//],
  },
});

test/fixtures dir contains nested node_modules folders containing packages which have no name field in their package.jsons (intentionally).

I am trying to prevent ATTW complaining about it.

Tried both RegExp and exact string matches - neither works.

Claude led me to add an .npmignore file which includes test/fixtures, and that does prevent the ATTW errors. But it feels rather hacky!

Full repro

oxc-project/oxc#17033

Apologies if I've just misunderstood how the attw config works.

Version

tsdown 0.18.1

[sxzz]

This option is provided by attw directly, and seems like full path is used like tsdown/config, instead of ./config