globby/readme.md

# globby

> User-friendly glob matching

Based on [`fast-glob`](https://github.com/mrmlnc/fast-glob) but adds a bunch of useful features.

## Features

- Promise API
- Multiple patterns
- Negated patterns: `['foo*', '!foobar']`
- Expands directories: `foo` → `foo/**/*`
- Supports `.gitignore` and similar ignore config files
- Supports `URL` as `cwd`

## Install

```
$ npm install globby
```

## Usage

```
├── unicorn
├── cake
└── rainbow
```

```js
import {globby} from 'globby';

const paths = await globby(['*', '!cake']);

console.log(paths);
//=> ['unicorn', 'rainbow']
```

## API

Note that glob patterns can only contain forward-slashes, not backward-slashes, so if you want to construct a glob pattern from path components, you need to use `path.posix.join()` instead of `path.join()`.

### globby(patterns, options?)

Returns a `Promise<string[]>` of matching paths.

#### patterns

Type: `string | string[]`

See supported `minimatch` [patterns](https://github.com/isaacs/minimatch#usage).

#### options

Type: `object`

See the [`fast-glob` options](https://github.com/mrmlnc/fast-glob#options-3) in addition to the ones below.

##### expandDirectories

Type: `boolean | string[] | object`\
Default: `true`

If set to `true`, `globby` will automatically glob directories for you. If you define an `Array` it will only glob files that matches the patterns inside the `Array`. You can also define an `object` with `files` and `extensions` like below:

```js
import {globby} from 'globby';

(async () => {
	const paths = await globby('images', {
		expandDirectories: {
			files: ['cat', 'unicorn', '*.jpg'],
			extensions: ['png']
		}
	});

	console.log(paths);
	//=> ['cat.png', 'unicorn.png', 'cow.jpg', 'rainbow.jpg']
})();
```

Note that if you set this option to `false`, you won't get back matched directories unless you set `onlyFiles: false`.

##### gitignore

Type: `boolean`\
Default: `false`

Respect ignore patterns in `.gitignore` files that apply to the globbed files.

##### ignoreFiles

Type: `string | string[]`\
Default: `undefined`

Glob patterns to look for ignore files, which are then used to ignore globbed files.

This is a more generic form of the `gitignore` option, allowing you to find ignore files with a [compatible syntax](http://git-scm.com/docs/gitignore). For instance, this works with Babel's `.babelignore`, Prettier's `.prettierignore`, or ESLint's `.eslintignore` files.

### globbySync(patterns, options?)

Returns `string[]` of matching paths.

### globbyStream(patterns, options?)

Returns a [`stream.Readable`](https://nodejs.org/api/stream.html#stream_readable_streams) of matching paths.

Since Node.js 10, [readable streams are iterable](https://nodejs.org/api/stream.html#stream_readable_symbol_asynciterator), so you can loop over glob matches in a [`for await...of` loop](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Statements/for-await...of) like this:

```js
import {globbyStream} from 'globby';

(async () => {
	for await (const path of globbyStream('*.tmp')) {
		console.log(path);
	}
})();
```

### generateGlobTasks(patterns, options?)

Returns an `Promise<object[]>` in the format `{patterns: string[], options: Object}`, which can be passed as arguments to [`fast-glob`](https://github.com/mrmlnc/fast-glob). This is useful for other globbing-related packages.

Note that you should avoid running the same tasks multiple times as they contain a file system cache. Instead, run this method each time to ensure file system changes are taken into consideration.

### generateGlobTasksSync(patterns, options?)

Returns an `object[]` in the format `{patterns: string[], options: Object}`, which can be passed as arguments to [`fast-glob`](https://github.com/mrmlnc/fast-glob). This is useful for other globbing-related packages.

Takes the same arguments as `generateGlobTasks`.

### isDynamicPattern(patterns, options?)

Returns a `boolean` of whether there are any special glob characters in the `patterns`.

Note that the options affect the results.

This function is backed by [`fast-glob`](https://github.com/mrmlnc/fast-glob#isdynamicpatternpattern-options).

### isGitIgnored(options?)

Returns a `Promise<(path: URL | string) => boolean>` indicating whether a given path is ignored via a `.gitignore` file.

Takes `cwd?: URL | string` as options.

```js
import {isGitIgnored} from 'globby';

const isIgnored = await isGitIgnored();

console.log(isIgnored('some/file'));
```

### isGitIgnoredSync(options?)

Returns a `(path: URL | string) => boolean` indicating whether a given path is ignored via a `.gitignore` file.

Takes `cwd?: URL | string` as options.

## Globbing patterns

Just a quick overview.

- `*` matches any number of characters, but not `/`
- `?` matches a single character, but not `/`
- `**` matches any number of characters, including `/`, as long as it's the only thing in a path part
- `{}` allows for a comma-separated list of "or" expressions
- `!` at the beginning of a pattern will negate the match

[Various patterns and expected matches.](https://github.com/sindresorhus/multimatch/blob/main/test/test.js)

## globby for enterprise

Available as part of the Tidelift Subscription.

The maintainers of globby and thousands of other packages are working with Tidelift to deliver commercial support and maintenance for the open source dependencies you use to build your applications. Save time, reduce risk, and improve code health, while paying the maintainers of the exact dependencies you use. [Learn more.](https://tidelift.com/subscription/pkg/npm-globby?utm_source=npm-globby&utm_medium=referral&utm_campaign=enterprise&utm_term=repo)

## Related

- [multimatch](https://github.com/sindresorhus/multimatch) - Match against a list instead of the filesystem
- [matcher](https://github.com/sindresorhus/matcher) - Simple wildcard matching
- [del](https://github.com/sindresorhus/del) - Delete files and directories
- [make-dir](https://github.com/sindresorhus/make-dir) - Make a directory and its parents if needed