| .. | ||
| lib | ||
| node_modules | ||
| test | ||
| .travis.yml | ||
| index.js | ||
| LICENSE | ||
| package.json | ||
| README.md | ||
| yarn.lock | ||
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:
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:
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:
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.
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.
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 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