@mieweb/wikigdrive
Version:
Google Drive to MarkDown synchronization
73 lines (72 loc) • 1.99 kB
JavaScript
// Copyright 2018-2025 the Deno authors. MIT license.
// This module is browser compatible.
import { concat } from "../../bytes/1.0.6/concat.js";
import { DEFAULT_CHUNK_SIZE } from "./_constants.js";
/**
* Read {@linkcode Reader} `r` until EOF (`null`) and resolve to the content as
* {@linkcode Uint8Array}.
*
* @example Usage
* ```ts ignore
* import { readAll } from "@std/io/read-all";
*
* // Example from stdin
* const stdinContent = await readAll(Deno.stdin);
*
* // Example from file
* using file = await Deno.open("my_file.txt", {read: true});
* const myFileContent = await readAll(file);
* ```
*
* @param reader The reader to read from
* @returns The content as Uint8Array
*/
export async function readAll(reader) {
const chunks = [];
while (true) {
let chunk = new Uint8Array(DEFAULT_CHUNK_SIZE);
const n = await reader.read(chunk);
if (n === null) {
break;
}
if (n < DEFAULT_CHUNK_SIZE) {
chunk = chunk.subarray(0, n);
}
chunks.push(chunk);
}
return concat(chunks);
}
/**
* Synchronously reads {@linkcode ReaderSync} `r` until EOF (`null`) and returns
* the content as {@linkcode Uint8Array}.
*
* @example Usage
* ```ts ignore
* import { readAllSync } from "@std/io/read-all";
*
* // Example from stdin
* const stdinContent = readAllSync(Deno.stdin);
*
* // Example from file
* using file = Deno.openSync("my_file.txt", {read: true});
* const myFileContent = readAllSync(file);
* ```
*
* @param reader The reader to read from
* @returns The content as Uint8Array
*/
export function readAllSync(reader) {
const chunks = [];
while (true) {
let chunk = new Uint8Array(DEFAULT_CHUNK_SIZE);
const n = reader.readSync(chunk);
if (n === null) {
break;
}
if (n < DEFAULT_CHUNK_SIZE) {
chunk = chunk.subarray(0, n);
}
chunks.push(chunk);
}
return concat(chunks);
}