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d47147fb6a
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>
142 lines
4.2 KiB
TypeScript
142 lines
4.2 KiB
TypeScript
// Copyright 2018-2023 the Deno authors. All rights reserved. MIT license.
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import {
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TextDecoder,
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TextEncoder,
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} from "internal:deno_web/08_text_encoding.js";
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import { asyncIterableToCallback } from "internal:deno_node/polyfills/_fs/_fs_watch.ts";
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import Dirent from "internal:deno_node/polyfills/_fs/_fs_dirent.ts";
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import { denoErrorToNodeError } from "internal:deno_node/polyfills/internal/errors.ts";
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import { getValidatedPath } from "internal:deno_node/polyfills/internal/fs/utils.mjs";
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import { Buffer } from "internal:deno_node/polyfills/buffer.ts";
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import { promisify } from "internal:deno_node/polyfills/internal/util.mjs";
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function toDirent(val: Deno.DirEntry): Dirent {
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return new Dirent(val);
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}
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type readDirOptions = {
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encoding?: string;
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withFileTypes?: boolean;
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};
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type readDirCallback = (err: Error | null, files: string[]) => void;
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type readDirCallbackDirent = (err: Error | null, files: Dirent[]) => void;
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type readDirBoth = (
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...args: [Error] | [null, string[] | Dirent[] | Array<string | Dirent>]
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) => void;
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export function readdir(
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path: string | Buffer | URL,
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options: { withFileTypes?: false; encoding?: string },
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callback: readDirCallback,
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): void;
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export function readdir(
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path: string | Buffer | URL,
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options: { withFileTypes: true; encoding?: string },
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callback: readDirCallbackDirent,
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): void;
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export function readdir(path: string | URL, callback: readDirCallback): void;
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export function readdir(
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path: string | Buffer | URL,
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optionsOrCallback: readDirOptions | readDirCallback | readDirCallbackDirent,
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maybeCallback?: readDirCallback | readDirCallbackDirent,
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) {
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const callback =
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(typeof optionsOrCallback === "function"
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? optionsOrCallback
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: maybeCallback) as readDirBoth | undefined;
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const options = typeof optionsOrCallback === "object"
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? optionsOrCallback
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: null;
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const result: Array<string | Dirent> = [];
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path = getValidatedPath(path);
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if (!callback) throw new Error("No callback function supplied");
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if (options?.encoding) {
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try {
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new TextDecoder(options.encoding);
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} catch {
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throw new Error(
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`TypeError [ERR_INVALID_OPT_VALUE_ENCODING]: The value "${options.encoding}" is invalid for option "encoding"`,
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);
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}
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}
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try {
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asyncIterableToCallback(Deno.readDir(path.toString()), (val, done) => {
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if (typeof path !== "string") return;
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if (done) {
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callback(null, result);
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return;
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}
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if (options?.withFileTypes) {
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result.push(toDirent(val));
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} else result.push(decode(val.name));
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}, (e) => {
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callback(denoErrorToNodeError(e as Error, { syscall: "readdir" }));
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});
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} catch (e) {
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callback(denoErrorToNodeError(e as Error, { syscall: "readdir" }));
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}
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}
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function decode(str: string, encoding?: string): string {
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if (!encoding) return str;
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else {
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const decoder = new TextDecoder(encoding);
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const encoder = new TextEncoder();
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return decoder.decode(encoder.encode(str));
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}
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}
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export const readdirPromise = promisify(readdir) as (
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& ((path: string | Buffer | URL, options: {
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withFileTypes: true;
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encoding?: string;
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}) => Promise<Dirent[]>)
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& ((path: string | Buffer | URL, options?: {
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withFileTypes?: false;
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encoding?: string;
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}) => Promise<string[]>)
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);
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export function readdirSync(
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path: string | Buffer | URL,
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options: { withFileTypes: true; encoding?: string },
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): Dirent[];
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export function readdirSync(
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path: string | Buffer | URL,
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options?: { withFileTypes?: false; encoding?: string },
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): string[];
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export function readdirSync(
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path: string | Buffer | URL,
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options?: readDirOptions,
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): Array<string | Dirent> {
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const result = [];
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path = getValidatedPath(path);
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if (options?.encoding) {
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try {
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new TextDecoder(options.encoding);
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} catch {
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throw new Error(
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`TypeError [ERR_INVALID_OPT_VALUE_ENCODING]: The value "${options.encoding}" is invalid for option "encoding"`,
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);
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}
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}
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try {
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for (const file of Deno.readDirSync(path.toString())) {
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if (options?.withFileTypes) {
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result.push(toDirent(file));
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} else result.push(decode(file.name));
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}
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} catch (e) {
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throw denoErrorToNodeError(e as Error, { syscall: "readdir" });
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}
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return result;
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}
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