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denoland-deno/ext/node/polyfills/_fs/_fs_appendFile.ts
Bartek Iwańczuk d47147fb6a
feat(ext/node): embed std/node into the snapshot (#17724)
This commit moves "deno_std/node" in "ext/node" crate. The code is
transpiled and snapshotted during the build process.

During the first pass a minimal amount of work was done to create the
snapshot, a lot of code in "ext/node" depends on presence of "Deno"
global. This code will be gradually fixed in the follow up PRs to migrate
it to import relevant APIs from "internal:" modules.

Currently the code from snapshot is not used in any way, and all
Node/npm compatibility still uses code from 
"https://deno.land/std/node" (or from the location specified by 
"DENO_NODE_COMPAT_URL"). This will also be handled in a follow 
up PRs.

---------

Co-authored-by: crowlkats <crowlkats@toaxl.com>
Co-authored-by: Divy Srivastava <dj.srivastava23@gmail.com>
Co-authored-by: Yoshiya Hinosawa <stibium121@gmail.com>
2023-02-14 17:38:45 +01:00

73 lines
2.2 KiB
TypeScript

// Copyright 2018-2023 the Deno authors. All rights reserved. MIT license.
import {
CallbackWithError,
isFd,
maybeCallback,
WriteFileOptions,
} from "internal:deno_node/polyfills/_fs/_fs_common.ts";
import { Encodings } from "internal:deno_node/polyfills/_utils.ts";
import {
copyObject,
getOptions,
} from "internal:deno_node/polyfills/internal/fs/utils.mjs";
import {
writeFile,
writeFileSync,
} from "internal:deno_node/polyfills/_fs/_fs_writeFile.ts";
import { promisify } from "internal:deno_node/polyfills/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);
}