Broccoli

Broccoli is an asset pipeline that runs on Node and is backend-agnostic. A project describes its build in a Brocfile.js, which exports a function that returns a tree: either a directory path or a graph of plugin nodes that transform and combine other trees. The function receives the options the command line passes, including the environment.

The command line is a separate package, broccoli-cli. Its broccoli build command writes the output once, and broccoli serve runs a development server. The README advises against running the server on a production host and suggests serving the built files from a web server instead. Plugins are published on npm under the broccoli-plugin keyword, and a Builder class lets other Node code run a graph directly.