opencode/packages/cli/script/files.ts

import { readdir } from "node:fs/promises"
import path from "node:path"

export async function collectFiles(root: string, current = root): Promise<string[]> {
  return (
    await Promise.all(
      (await readdir(current, { withFileTypes: true })).map(async (entry) => {
        const target = path.join(current, entry.name)
        return entry.isDirectory() ? collectFiles(root, target) : [path.relative(root, target)]
      }),
    )
  ).flat()
}