Function toAbsoluteGlob

packages/vite/src/node/plugins/importMetaGlob.ts:644–690

(
  glob: string,
  root: string,
  importer: string | undefined,
  resolveId: IdResolver,
  base?: string,
)

}

export async function toAbsoluteGlob(
  glob: string,
  root: string,
  importer: string | undefined,
  resolveId: IdResolver,
  base?: string,
): Promise<string> {
  let pre = ''
  if (glob[0] === '!') {
    pre = '!'
    glob = glob.slice(1)
  }
  root = globSafePath(root)
  let dir
  if (base) {
    if (base[0] === '/') {
      dir = posix.join(root, base)
    } else {
      dir = posix.resolve(
        importer ? globSafePath(dirname(importer)) : root,
        base,
      )
    }
  } else {
    dir = importer ? globSafePath(dirname(importer)) : root
  }

  if (glob[0] === '/') return pre + posix.join(root, glob.slice(1))
  if (glob.startsWith('./')) return pre + posix.join(dir, glob.slice(2))
  if (glob.startsWith('../')) return pre + posix.join(dir, glob)
  if (glob.startsWith('**')) return pre + glob

  const isSubImportsPattern = glob[0] === '#' && glob.includes('*')

  const resolved = normalizePath(
    (await resolveId(glob, importer, {
      custom: { 'vite:import-glob': { isSubImportsPattern } },
    })) || glob,
  )
  if (isAbsolute(resolved)) {
    return pre + globSafeResolvedPath(resolved, glob)
  }

  throw new Error(
    `Invalid glob: "${glob}" (resolved: "${resolved}"). It must start with '/' or './'`,
  )
}

export function getCommonBase(globsResolved: string[]): null | string {
  const bases = globsResolved