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https://github.com/armed/gulp-flatten

Gulp plugin: remove or replace relative paths for files
https://github.com/armed/gulp-flatten

flatten gulp gulp-plugin javascript

Last synced: 5 days ago
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Gulp plugin: remove or replace relative paths for files

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# [gulp](http://gulpjs.com)-flatten [![NPM version](https://img.shields.io/npm/v/gulp-flatten.svg)](http://badge.fury.io/js/gulp-flatten) [![Build Status](https://api.travis-ci.org/armed/gulp-flatten.svg?branch=master)](https://travis-ci.org/armed/gulp-flatten)

>Remove or replace relative path for files (gulp v3).

## Install

```
npm install gulp-flatten
```

## Usage

Example source directory with bower compoments:
```
├── angular
│   ├── README.md
│   ├── angular-csp.css
│   ├── angular.js
│   ├── angular.min.js
│   └── bower.json
├── angular-route
│   ├── README.md
│   ├── angular-route.js
│   ├── angular-route.min.js
│   ├── angular-route.min.js.map
│   └── bower.json
├── angular-sanitize
│   ├── README.md
│   ├── angular-sanitize.js
│   ├── angular-sanitize.min.js
│   ├── angular-sanitize.min.js.map
│   └── bower.json
└── bootstrap
   ├── DOCS-LICENSE
   ├── LICENSE
   ├── LICENSE-MIT
   ├── README.md
   ├── bower.json
   └── dist
├── css
│   ├── bootstrap-theme.css
│   ├── bootstrap-theme.min.css
│   ├── bootstrap.css
│   └── bootstrap.min.css
├── fonts
│   ├── glyphicons-halflings-regular.eot
│   ├── glyphicons-halflings-regular.svg
│   ├── glyphicons-halflings-regular.ttf
│   └── glyphicons-halflings-regular.woff
└── js
├── bootstrap.js
└── bootstrap.min.js
```

By default `gulp` stores files with it's relative paths. To copy all minified javascript files from `bower_components` to `build` folder without relative paths:
```js
var flatten = require('gulp-flatten');

gulp.src('bower_components/**/*.min.js')
.pipe(flatten())
.pipe(gulp.dest('build/js'));
```

Result will be list of all `.min.js` files inside `build/js` dir:
```
build
└── js
├── angular-route.min.js
├── angular-sanitize.min.js
├── angular.min.js
└── bootstrap.min.js
```

## Options

### flatten(options)

#### options.newPath

Type: `String`
Default: `''`

Relative path for file.

#### options.includeParents

Type: `Number` or `Array` of two numbers

If passed in as positive number, it will include the number of top-level parents in the output. Using this code:

```js
gulp.src(['bower_components/**/*.css'])
.pipe(flatten({ includeParents: 1} ))
.pipe(gulp.dest('build/'));
```

will create this structure (from sample directory tree above):

```
└── bootstrap
├── bootstrap-theme.css
├── bootstrap-theme.min.css
├── bootstrap.css
└── bootstrap.min.css
```

If passed in as negative number, it will include the number of bottom-level parents in the output. Using this code:

```js
gulp.src(['bower_components/**/*.css'])
.pipe(flatten({ includeParents: -1} )) //or indludeParents: [0, 1]
.pipe(gulp.dest('build/'));
```

will create this structure:

```
└── css
├── bootstrap-theme.css
├── bootstrap-theme.min.css
├── bootstrap.css
└── bootstrap.min.css
```

If passes as array of two numbers, both parents from top and bottom will be kept in resulting path of a file.

```js
gulp.src(['bower_components/**/*.css'])
.pipe(flatten({ includeParents: [1, 1]} ))
.pipe(gulp.dest('build/'));
```

will create this structure:

```
└── bootstrap
└── css
├── bootstrap-theme.css
├── bootstrap-theme.min.css
├── bootstrap.css
└── bootstrap.min.css
```

#### options.subPath

Type: Number or Array of two Numbers [begin, end]

This options applies `Array.slice` to the array of path elements and allows you
to receive a subsequences of the path.

```js
gulp.src(['bower_components/**/*.css'])
.pipe(flatten({ subPath: [1, 1]} ))
.pipe(gulp.dest('build/'));
```
This as an example would flatten `top1/top2/bottom2/bottom1/file.txt` to `top2/file.txt`.

`[1, -1]` would flatten `top1/top2/bottom2/bottom1/file.txt` to `top2/bottom2/file.txt`.

Please refer to the [Array.slice documentation](https://developer.mozilla.org/en/docs/Web/JavaScript/Reference/Global_Objects/Array/slice) for a detailed description.

**!** If you're using both `options.includeParents` combined with `options.subPath`
please note that `options.includeParents` is applied first.

## License

MIT