171 lines
4.8 KiB
Markdown
171 lines
4.8 KiB
Markdown
# @nodelib/fs.scandir
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> List files and directories inside the specified directory.
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## :bulb: Highlights
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The package is aimed at obtaining information about entries in the directory.
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* :moneybag: Returns useful information: `name`, `path`, `dirent` and `stats` (optional).
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* :gear: On Node.js 10.10+ uses the mechanism without additional calls to determine the entry type. See [`old` and `modern` mode](#old-and-modern-mode).
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* :link: Can safely work with broken symbolic links.
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## Install
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```console
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npm install @nodelib/fs.scandir
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```
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## Usage
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```ts
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import * as fsScandir from '@nodelib/fs.scandir';
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fsScandir.scandir('path', (error, stats) => { /* … */ });
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```
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## API
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### .scandir(path, [optionsOrSettings], callback)
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Returns an array of plain objects ([`Entry`](#entry)) with information about entry for provided path with standard callback-style.
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```ts
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fsScandir.scandir('path', (error, entries) => { /* … */ });
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fsScandir.scandir('path', {}, (error, entries) => { /* … */ });
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fsScandir.scandir('path', new fsScandir.Settings(), (error, entries) => { /* … */ });
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```
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### .scandirSync(path, [optionsOrSettings])
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Returns an array of plain objects ([`Entry`](#entry)) with information about entry for provided path.
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```ts
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const entries = fsScandir.scandirSync('path');
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const entries = fsScandir.scandirSync('path', {});
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const entries = fsScandir.scandirSync(('path', new fsScandir.Settings());
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```
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#### path
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* Required: `true`
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* Type: `string | Buffer | URL`
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A path to a file. If a URL is provided, it must use the `file:` protocol.
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#### optionsOrSettings
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* Required: `false`
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* Type: `Options | Settings`
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* Default: An instance of `Settings` class
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An [`Options`](#options) object or an instance of [`Settings`](#settingsoptions) class.
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> :book: When you pass a plain object, an instance of the `Settings` class will be created automatically. If you plan to call the method frequently, use a pre-created instance of the `Settings` class.
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### Settings([options])
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A class of full settings of the package.
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```ts
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const settings = new fsScandir.Settings({ followSymbolicLinks: false });
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const entries = fsScandir.scandirSync('path', settings);
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```
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## Entry
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* `name` — The name of the entry (`unknown.txt`).
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* `path` — The path of the entry relative to call directory (`root/unknown.txt`).
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* `dirent` — An instance of [`fs.Dirent`](./src/types/index.ts) class. On Node.js below 10.10 will be emulated by [`DirentFromStats`](./src/utils/fs.ts) class.
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* `stats` (optional) — An instance of `fs.Stats` class.
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For example, the `scandir` call for `tools` directory with one directory inside:
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```ts
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{
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dirent: Dirent { name: 'typedoc', /* … */ },
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name: 'typedoc',
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path: 'tools/typedoc'
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}
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```
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## Options
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### stats
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* Type: `boolean`
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* Default: `false`
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Adds an instance of `fs.Stats` class to the [`Entry`](#entry).
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> :book: Always use `fs.readdir` without the `withFileTypes` option. ??TODO??
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### followSymbolicLinks
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* Type: `boolean`
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* Default: `false`
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Follow symbolic links or not. Call `fs.stat` on symbolic link if `true`.
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### `throwErrorOnBrokenSymbolicLink`
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* Type: `boolean`
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* Default: `true`
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Throw an error when symbolic link is broken if `true` or safely use `lstat` call if `false`.
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### `pathSegmentSeparator`
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* Type: `string`
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* Default: `path.sep`
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By default, this package uses the correct path separator for your OS (`\` on Windows, `/` on Unix-like systems). But you can set this option to any separator character(s) that you want to use instead.
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### `fs`
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* Type: [`FileSystemAdapter`](./src/adapters/fs.ts)
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* Default: A default FS methods
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By default, the built-in Node.js module (`fs`) is used to work with the file system. You can replace any method with your own.
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```ts
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interface FileSystemAdapter {
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lstat?: typeof fs.lstat;
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stat?: typeof fs.stat;
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lstatSync?: typeof fs.lstatSync;
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statSync?: typeof fs.statSync;
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readdir?: typeof fs.readdir;
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readdirSync?: typeof fs.readdirSync;
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}
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const settings = new fsScandir.Settings({
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fs: { lstat: fakeLstat }
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});
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```
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## `old` and `modern` mode
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This package has two modes that are used depending on the environment and parameters of use.
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### old
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* Node.js below `10.10` or when the `stats` option is enabled
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When working in the old mode, the directory is read first (`fs.readdir`), then the type of entries is determined (`fs.lstat` and/or `fs.stat` for symbolic links).
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### modern
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* Node.js 10.10+ and the `stats` option is disabled
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In the modern mode, reading the directory (`fs.readdir` with the `withFileTypes` option) is combined with obtaining information about its entries. An additional call for symbolic links (`fs.stat`) is still present.
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This mode makes fewer calls to the file system. It's faster.
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## Changelog
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See the [Releases section of our GitHub project](https://github.com/nodelib/nodelib/releases) for changelog for each release version.
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## License
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This software is released under the terms of the MIT license.
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