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`
## Install
```
$ npm install globby
```
## Usage
```
├── unicorn
├── cake
└── rainbow
```
```js
const globby = require('globby');
(async () => {
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:
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.
### globby.sync(patterns, options?)
Returns `string[]` of matching paths.
### globby.stream(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
const globby = require('globby');
(async () => {
for await (const path of globby.stream('*.tmp')) {
console.log(path);
}
})();
```
### globby.generateGlobTasks(patterns, options?)
Returns an `object[]` in the format `{pattern: 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.
### globby.hasMagic(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).
### globby.gitignore(options?)
Returns a `Promise<(path: string) => boolean>` indicating whether a given path is ignored via a `.gitignore` file.
Takes `cwd?: string` and `ignore?: string[]` as options. `.gitignore` files matched by the ignore config are not used for the resulting filter function.
```js
const {gitignore} = require('globby');
(async () => {
const isIgnored = await gitignore();
console.log(isIgnored('some/file'));
})();
```
### globby.gitignore.sync(options?)
Returns a `(path: string) => boolean` indicating whether a given path is ignored via a `.gitignore` file.
Takes the same options as `globby.gitignore`.
## 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
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## Related
- [multimatch](https://github.com/sindresorhus/multimatch) - Match against a list instead of the filesystem
