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// Copyright 2018-2024 the Deno authors. All rights reserved. MIT license.
import {
CallbackWithError,
isFd,
maybeCallback,
WriteFileOptions,
} from "ext:deno_node/_fs/_fs_common.ts";
import { Encodings } from "ext:deno_node/_utils.ts";
import { copyObject, getOptions } from "ext:deno_node/internal/fs/utils.mjs";
import { writeFile, writeFileSync } from "ext:deno_node/_fs/_fs_writeFile.ts";
import { promisify } from "ext:deno_node/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);
}
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