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README.md
🚀 fast-glob
Is a faster
node-glob
alternative.
💡 Highlights
- 🚀 Fast by using Streams and Promises. Used readdir-enhanced and micromatch.
- 🔰 User-friendly, since it supports multiple and negated patterns (
['*', '!*.md']
). - 🚦 Rational, because it doesn't read excluded directories (
!**/node_modules/**
). - ⚙️ Universal, because it supports Synchronous, Promise and Stream API.
- 💸 Economy, because it provides
fs.Stats
for matched path if you wanted.
Donate
If you want to thank me, or promote your Issue.
Sorry, but I have work and support for packages requires some time after work. I will be glad of your support and PR's.
Install
$ npm install --save fast-glob
Usage
Asynchronous
const fg = require('fast-glob');
fg(['src/**/*.js', '!src/**/*.spec.js']).then((entries) => console.log(entries));
fg.async(['src/**/*.js', '!src/**/*.spec.js']).then((entries) => console.log(entries));
Synchronous
const fg = require('fast-glob');
const entries = fg.sync(['src/**/*.js', '!src/**/*.spec.js']);
console.log(entries);
Stream
const fg = require('fast-glob');
const stream = fg.stream(['src/**/*.js', '!src/**/*.spec.js']);
const entries = [];
stream.on('data', (entry) => entries.push(entry));
stream.once('error', console.log);
stream.once('end', () => console.log(entries));
API
fg(patterns, [options])
fg.async(patterns, [options])
Returns a Promise
with an array of matching entries.
fg.sync(patterns, [options])
Returns an array of matching entries.
fg.stream(patterns, [options])
Returns a ReadableStream
when the data
event will be emitted with Entry
.
patterns
- Type:
string|string[]
This package does not respect the order of patterns. First, all the negative patterns are applied, and only then the positive patterns.
options
- Type:
Object
See options section for more detailed information.
fg.generateTasks(patterns, [options])
Return a set of tasks based on provided patterns. All tasks satisfy the Task
interface:
interface Task {
/**
* Parent directory for all patterns inside this task.
*/
base: string;
/**
* Dynamic or static patterns are in this task.
*/
dynamic: boolean;
/**
* All patterns.
*/
patterns: string[];
/**
* Only positive patterns.
*/
positive: string[];
/**
* Only negative patterns without ! symbol.
*/
negative: string[];
}
Entry
The entry which can be a string
if the stats
option is disabled, otherwise fs.Stats
with two additional path
and depth
properties.
Options
cwd
- Type:
string
- Default:
process.cwd()
The current working directory in which to search.
deep
- Type:
number|boolean
- Default:
true
The deep option can be set to true
to traverse the entire directory structure, or it can be set to a number to only traverse that many levels deep.
For example, you have the following tree:
test
└── one
└── two
└── index.js
📖 If you specify a pattern with some base directory, this directory will not participate in the calculation of the depth of the found directories. Think of it as a
cwd
option.
fg('test/**', { onlyFiles: false, deep: 0 });
// -> ['test/one']
fg('test/**', { onlyFiles: false, deep: 1 });
// -> ['test/one', 'test/one/two']
fg('**', { onlyFiles: false, cwd: 'test', deep: 0 });
// -> ['one']
fg('**', { onlyFiles: false, cwd: 'test', deep: 1 });
// -> ['one', 'one/two']
ignore
- Type:
string[]
- Default:
[]
An array of glob patterns to exclude matches.
dot
- Type:
boolean
- Default:
false
Allow patterns to match filenames starting with a period (files & directories), even if the pattern does not explicitly have a period in that spot.
stats
- Type:
boolean
- Default:
false
Return fs.Stats
with two additional path
and depth
properties instead of a string
.
onlyFiles
- Type:
boolean
- Default:
true
Return only files.
onlyDirectories
- Type:
boolean
- Default:
false
Return only directories.
followSymlinkedDirectories
- Type:
boolean
- Default:
true
Follow symlinked directories when expanding **
patterns.
unique
- Type:
boolean
- Default:
true
Prevent duplicate results.
markDirectories
- Type:
boolean
- Default:
false
Add a /
character to directory entries.
absolute
- Type:
boolean
- Default:
false
Return absolute paths for matched entries.
📖 Note that you need to use this option if you want to use absolute negative patterns like
${__dirname}/*.md
.
nobrace
- Type:
boolean
- Default:
false
Disable expansion of brace patterns ({a,b}
, {1..3}
).
brace
- Type:
boolean
- Default:
true
The nobrace
option without double-negation. This option has a higher priority then nobrace
.
noglobstar
- Type:
boolean
- Default:
false
Disable matching with globstars (**
).
globstar
- Type:
boolean
- Default:
true
The noglobstar
option without double-negation. This option has a higher priority then noglobstar
.
noext
- Type:
boolean
- Default:
false
Disable extglob support (patterns like +(a|b)
), so that extglobs are regarded as literal characters.
extension
- Type:
boolean
- Default:
true
The noext
option without double-negation. This option has a higher priority then noext
.
nocase
- Type:
boolean
- Default:
false
Disable a case-sensitive mode for matching files.
Examples
- File System:
test/file.md
,test/File.md
- Case-sensitive for
test/file.*
pattern (false
):test/file.md
- Case-insensitive for
test/file.*
pattern (true
):test/file.md
,test/File.md
case
- Type:
boolean
- Default:
true
The nocase
option without double-negation. This option has a higher priority then nocase
.
matchBase
- Type:
boolean
- Default:
false
Allow glob patterns without slashes to match a file path based on its basename. For example, a?b
would match the path /xyz/123/acb
, but not /xyz/acb/123
.
transform
- Type:
Function
- Default:
null
Allows you to transform a path or fs.Stats
object before sending to the array.
const fg = require('fast-glob');
const entries1 = fg.sync(['**/*.scss']);
const entries2 = fg.sync(['**/*.scss'], { transform: (entry) => '_' + entry });
console.log(entries1); // ['a.scss', 'b.scss']
console.log(entries2); // ['_a.scss', '_b.scss']
If you are using TypeScript, you probably want to specify your own type of the returned array.
import * as fg from 'fast-glob';
interface IMyOwnEntry {
path: string;
}
const entries: IMyOwnEntry[] = fg.sync<IMyOwnEntry>(['*.md'], {
transform: (entry) => typeof entry === 'string' ? { path: entry } : { path: entry.path }
// Will throw compilation error for non-IMyOwnEntry types (boolean, for example)
});
How to exclude directory from reading?
You can use a negative pattern like this: !**/node_modules
or !**/node_modules/**
. Also you can use ignore
option. Just look at the example below.
first/
├── file.md
└── second
└── file.txt
If you don't want to read the second
directory, you must write the following pattern: !**/second
or !**/second/**
.
fg.sync(['**/*.md', '!**/second']); // ['first/file.txt']
fg.sync(['**/*.md'], { ignore: '**/second/**' }); // ['first/file.txt']
⚠️ When you write
!**/second/**/*
it means that the directory will be read, but all the entries will not be included in the results.
You have to understand that if you write the pattern to exclude directories, then the directory will not be read under any circumstances.
How to use UNC path?
You cannot use UNC paths as patterns (due to syntax), but you can use them as cwd
directory.
fg.sync('*', { cwd: '\\\\?\\C:\\Python27' /* or //?/C:/Python27 */ });
fg.sync('Python27/*', { cwd: '\\\\?\\C:\\' /* or //?/C:/ */ });
Compatible with node-glob
?
Not fully, because fast-glob
does not implement all options of node-glob
. See table below.
node-glob | fast-glob |
---|---|
cwd |
cwd |
root |
– |
dot |
dot |
nomount |
– |
mark |
markDirectories |
nosort |
– |
nounique |
unique |
nobrace |
nobrace or brace |
noglobstar |
noglobstar or globstar |
noext |
noext or extension |
nocase |
nocase or case |
matchBase |
matchbase |
nodir |
onlyFiles |
ignore |
ignore |
follow |
followSymlinkedDirectories |
realpath |
– |
absolute |
absolute |
Benchmarks
Tech specs:
Server: Vultr Bare Metal
- Processor: E3-1270v6 (8 CPU)
- RAM: 32GB
- Disk: SSD
You can see results here for latest release.
Related
- readdir-enhanced – Fast functional replacement for
fs.readdir()
. - globby – User-friendly glob matching.
- node-glob – «Standard» glob functionality for Node.js
- bash-glob – Bash-powered globbing for node.js.
- glob-stream – A Readable Stream interface over node-glob that used in the gulpjs.
- tiny-glob – Tiny and extremely fast library to match files and folders using glob patterns.
Changelog
See the Releases section of our GitHub project for changelogs for each release version.
License
This software is released under the terms of the MIT license.