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// Copyright 2018-2020 the Deno authors. All rights reserved. MIT license.
import { CallbackWithError } from "./_fs_common.ts";
const allowedModes = /^[0-7]{3}/;
/** * TODO: Also accept 'path' parameter as a Node polyfill Buffer or URL type once these * are implemented. See https://github.com/denoland/deno/issues/3403 */export function chmod(  path: string,  mode: string | number,  callback: CallbackWithError): void {  new Promise(async (resolve, reject) => {    try {      await Deno.chmod(path, getResolvedMode(mode));      resolve();    } catch (err) {      reject(err);    }  })    .then(() => {      callback();    })    .catch((err) => {      callback(err);    });}
/** * TODO: Also accept 'path' parameter as a Node polyfill Buffer or URL type once these * are implemented. See https://github.com/denoland/deno/issues/3403 */export function chmodSync(path: string, mode: string | number): void {  Deno.chmodSync(path, getResolvedMode(mode));}
function getResolvedMode(mode: string | number): number {  if (typeof mode === "number") {    return mode;  }
  if (typeof mode === "string") {    if (!allowedModes.test(mode)) {      throw new Error("Unrecognized mode: " + mode);    }  }
  return parseInt(mode, 8);}