module-gulp | Gulp pipeline and framework for Magento

The above will compile all static assets required for the default store, and will probably do it a little bit faster than Magento's default implementations.
Basic assets are copied (CSS, JS, images, etc.)
LESS stylesheets
requirejs-config.js
js-translation.json (also includes theme translations)
Builds the build system. In particular, it does two things:.
Parses every module's prefab.xml and generates package.json.
Copy all prefab directories inside a module into a shared prefab build directory, where they are accessible by npm scripts.
Installs all dependencies specified by Prefab's package.json. This should be run after setup:prefab:build.
All tasks should be configured in a file called prefab.xml, which should be placed in the etc directory of your module. There is a corresponding XSD schema, as well, but a task should look like this:.
Since the dependencies are all declared in package.json, all that is left is to run npm install. This module includes a bin/magento command to put you in the correct directory:. As with build, the above commands only have to be run once, or whenever something changes.
The configuration exports an environment variable BUILD_DIR. This is unique per store, and can be used to store intermediate results for any tasks. The flatten task uses this, and creates a subdirectory called flatten. It is recommended to create a subdirectory of this and store your intermediate results inside it. This can be accessed using path.join(config.build_dir, ...).