feat: support mark any underscore module as private

[huozhi]

What

If I have a lot of internal files that wanted to be share across multiple entries, e.g. _internal/** and each entry randomly imports the internal files, we could create some shared chunks for _internal/** so that each shared module will have a new chunk.

For example

- src
  | - _internal/
    |- util-a
    |- util-b
  | - entry-a
  | - entry-b

In the dependency graph, entry-a imports util-a, and entry-b imports util-b. we could just create 2 chunks for _internal/util-a and _internal/util-b instead of asking users to use a barrel file like _internal/index.ts or rename everything under _internal with a underscore prefix.

Closes #617

[vercel]

The latest updates on your projects. Learn more about Vercel for Git ↗︎

Name	Status	Preview	Comments	Updated (UTC)
bunchee	✅ Ready (Inspect)	Visit Preview	💬 Add feedback	Dec 29, 2024 7:18pm