// Which files of an installed package the runtime keeps: every file but docs, source maps,
// and native addons. Packages read more than their code at runtime (Astro reads .d.ts
// templates, CSS, and .astro components out of its own package), so the rule drops only
// what nothing loads: Markdown, .map files, and .node addons, which cannot load here, and
// whose absence a napi-rs loader takes as its cue to try the package's wasm build. The
// kernel installer applies it to every tarball file and src/node/snapshot.ts imports it
// under Node's type stripping, so an install and a snapshot keep the same files. Erasable
// TypeScript only.

const DROPPED = /\.(?:md|markdown|map|node)$/i;

/** `name` is the file's basename. `bytes` are its contents. */
export function keepInPackage(name: string, _bytes: Uint8Array): boolean {
  return !DROPPED.test(name);
}