import { exists } from "fs/promises"
import { dirname, join } from "path"

export namespace Filesystem {
  export async function findUp(target: string, start: string, stop?: string) {
    let current = start
    const result = []
    while (true) {
      const search = join(current, target)
      if (await exists(search)) result.push(search)
      if (stop === current) break
      const parent = dirname(current)
      if (parent === current) break
      current = parent
    }
    return result
  }
}