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// Copyright 2018-2022 the Deno authors. All rights reserved. MIT license.import {  CallbackWithError,  isFd,  maybeCallback,  WriteFileOptions,} from "./_fs_common.ts";import { Encodings } from "../_utils.ts";import { copyObject, getOptions } from "../internal/fs/utils.mjs";import { writeFile, writeFileSync } from "./_fs_writeFile.ts";import { promisify } from "../internal/util.mjs";
/** * TODO: Also accept 'data' parameter as a Node polyfill Buffer type once these * are implemented. See https://github.com/denoland/deno/issues/3403 */export function appendFile(  path: string | number | URL,  data: string | Uint8Array,  options: Encodings | WriteFileOptions | CallbackWithError,  callback?: CallbackWithError,) {  callback = maybeCallback(callback || options);  options = getOptions(options, { encoding: "utf8", mode: 0o666, flag: "a" });
  // Don't make changes directly on options object  options = copyObject(options);
  // Force append behavior when using a supplied file descriptor  if (!options.flag || isFd(path)) {    options.flag = "a";  }
  writeFile(path, data, options, callback);}
/** * TODO: Also accept 'data' parameter as a Node polyfill Buffer type once these * are implemented. See https://github.com/denoland/deno/issues/3403 */export const appendFilePromise = promisify(appendFile) as (  path: string | number | URL,  data: string | Uint8Array,  options?: Encodings | WriteFileOptions,) => Promise<void>;
/** * TODO: Also accept 'data' parameter as a Node polyfill Buffer type once these * are implemented. See https://github.com/denoland/deno/issues/3403 */export function appendFileSync(  path: string | number | URL,  data: string | Uint8Array,  options?: Encodings | WriteFileOptions,) {  options = getOptions(options, { encoding: "utf8", mode: 0o666, flag: "a" });
  // Don't make changes directly on options object  options = copyObject(options);
  // Force append behavior when using a supplied file descriptor  if (!options.flag || isFd(path)) {    options.flag = "a";  }
  writeFileSync(path, data, options);}