Function searchForPackageRoot

packages/vite/src/node/server/searchRoot.ts:68–79

(
  current: string,
  root: string = current,
)

 * Search up for the nearest `package.json`
 */
export function searchForPackageRoot(
  current: string,
  root: string = current,
): string {
  if (hasPackageJSON(current)) return current

  const dir = dirname(current)
  // reach the fs root
  if (!dir || dir === current) return root

  return searchForPackageRoot(dir, root)
}

/**
 * Search up for the nearest workspace root