Skip to main content
Using Deno in production at your company? Earn free Deno merch.
Give us feedback
Module

std/fs/ensure_dir.ts

The Deno Standard Library
Latest
File
// Copyright 2018-2024 the Deno authors. All rights reserved. MIT license.import { getFileInfoType } from "./_get_file_info_type.ts";
/** * Asynchronously ensures that the directory exists. If the directory structure * does not exist, it is created. Like `mkdir -p`. * * Requires the `--allow-read` and `--allow-write` flag. * * @param dir The path of the directory to ensure, as a string or URL. * @returns A promise that resolves once the directory exists. * * @example * ```ts * import { ensureDir } from "https://deno.land/std@$STD_VERSION/fs/ensure_dir.ts"; * * await ensureDir("./bar"); * ``` */export async function ensureDir(dir: string | URL) { try { const fileInfo = await Deno.stat(dir); if (!fileInfo.isDirectory) { throw new Error( `Ensure path exists, expected 'dir', got '${ getFileInfoType(fileInfo) }'`, ); } return; } catch (err) { if (!(err instanceof Deno.errors.NotFound)) { throw err; } }
// The dir doesn't exist. Create it. // This can be racy. So we catch AlreadyExists and check stat again. try { await Deno.mkdir(dir, { recursive: true }); } catch (err) { if (!(err instanceof Deno.errors.AlreadyExists)) { throw err; }
const fileInfo = await Deno.stat(dir); if (!fileInfo.isDirectory) { throw new Error( `Ensure path exists, expected 'dir', got '${ getFileInfoType(fileInfo) }'`, ); } }}
/** * Synchronously ensures that the directory exists. If the directory structure * does not exist, it is created. Like `mkdir -p`. * * Requires the `--allow-read` and `--allow-write` flag. * * @param dir The path of the directory to ensure, as a string or URL. * @returns A void value that returns once the directory exists. * * @example * ```ts * import { ensureDir } from "https://deno.land/std@$STD_VERSION/fs/ensure_dir.ts"; * * await ensureDir("./bar"); * ``` */export function ensureDirSync(dir: string | URL) { try { const fileInfo = Deno.statSync(dir); if (!fileInfo.isDirectory) { throw new Error( `Ensure path exists, expected 'dir', got '${ getFileInfoType(fileInfo) }'`, ); } return; } catch (err) { if (!(err instanceof Deno.errors.NotFound)) { throw err; } }
// The dir doesn't exist. Create it. // This can be racy. So we catch AlreadyExists and check stat again. try { Deno.mkdirSync(dir, { recursive: true }); } catch (err) { if (!(err instanceof Deno.errors.AlreadyExists)) { throw err; }
const fileInfo = Deno.statSync(dir); if (!fileInfo.isDirectory) { throw new Error( `Ensure path exists, expected 'dir', got '${ getFileInfoType(fileInfo) }'`, ); } }}