// Copyright 2018-2024 the Deno authors. All rights reserved. MIT license. // TODO(petamoriken): enable prefer-primordials for node polyfills // deno-lint-ignore-file prefer-primordials import { CallbackWithError } from "ext:deno_node/_fs/_fs_common.ts"; import { pathFromURL } from "ext:deno_web/00_infra.js"; import { promisify } from "ext:deno_node/internal/util.mjs"; export function truncate( path: string | URL, lenOrCallback: number | CallbackWithError, maybeCallback?: CallbackWithError, ) { path = path instanceof URL ? pathFromURL(path) : path; const len: number | undefined = typeof lenOrCallback === "number" ? lenOrCallback : undefined; const callback: CallbackWithError = typeof lenOrCallback === "function" ? lenOrCallback : maybeCallback as CallbackWithError; if (!callback) throw new Error("No callback function supplied"); Deno.truncate(path, len).then(() => callback(null), callback); } export const truncatePromise = promisify(truncate) as ( path: string | URL, len?: number, ) => Promise<void>; export function truncateSync(path: string | URL, len?: number) { path = path instanceof URL ? pathFromURL(path) : path; Deno.truncateSync(path, len); }