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yproject is a command-line utility to scaffold YUI3 projects and modules.

It contains a project template and a module template to quickly bootstrap your project enforcing best practices from the start.


$ [sudo] npm install -g yproject

Or install it as a developer :

$ git clone git://
$ cd yproject
$ [sudo] npm link


Create a new project

$ yproject myproject

This will create the following structure :

  • yuidoc.json is used to generate the API documentation using yuidocjs
  • src/myproject-loader is a module which will generate a YUI3 seed file for using the YUI3 loader
  • src/common contains a simple documentation template to use with selleck

Creating a new module

Go to your project directory and type :

$ ymodule mymodule

This will create the following structure in src/ :



By default, ymodule will also create an 'assets' folder containing a 'sam' skin.

It will also mark the module as skinnable in the meta file.

To disable the assets generation, use the --no-assets (or --no-a) option :

$ ymodule mymodule --no-assets


By default, ymodule will generate a 'docs' folder containing two pages for the module description and a basic example.

It will later be used by the selleck documentation rendering.

To disable the docs generation, use the --no-docs (or --no-d) option :

$ ymodule mymodule --no-docs

Lang (I18n, intl)

By default, ymodule will create a 'lang' folder containing a 'en' localization file.

It will also require the 'intl' module in the meta file.

To disable it, use the --no-lang (or --no-l) option :

$ ymodule mymodule --no-lang


By default, ymodule will create a 'tests' folder with a basic test case.

To disable it, use the --no-tests (or --no-t) option :

$ ymodule mymodule --no-tests


By using the --widget option (or -w), ymodule will use a widget template for the generated javascript file :

$ ymodule mywidget -w

Updating an existing module

If you already have a working module, you can add some options to it.

Assuming you have a very basic module 'mymodule', with just the js/, meta/, and build.json files :

$ cd mymodule
$ ymodule --no-docs

This command will generate assets/, tests/, and lang/ folders if they don't exist yet. Il will also add the missing dependencies in the meta.json file.

Default loader module

A special module is created when you create a new project (ex: "myproject-loader"), which adds your module definitions to the YUI loader utility.

This module is auto-generated, so you won't have to touch anything in it.

You may want to edit the template/meta.js file to tweek some loader options.

This module has to be re-built everytime you add a new module to the project, or when you change a meta file description in any module.

$ cd src/myproject-loader
$ shifter

Building modules

We use shifter to build YUI modules.

To install shifter :

$ [sudo] npm install -g shifter

To build the 'container' module :

$ cd src/container
$ shifter

To build all modules at once :

$ cd src
$ shifter --walk

Building user guides and examples pages

We are using selleck to build the examples and user guide pages.

To install selleck :

$ [sudo] npm install -g selleck

To build all docs :

$ selleck --out docs

Building the API documentation

The API documentation is build using YUIDocJS.

To install YUIDocJS :

$ [sudo] npm install -g yuidocjs

From the main directory, type :

$ yuidoc

It should generate the doc in the api/ folder.

How to run the tests

Tests are executed with Yeti.

To install Yeti :

$ [sudo] npm install -g yeti

From the main directory, type :

$ yeti src/*/tests/unit/*.html

This command creates a one shot server and return you an adress which you have to connect a browser in order to run the tests. You can also invoke the same command with "--server" in order to have a persistent server

$ yeti src/*/tests/unit/*.html --server

Testing with coverage :

$ yeti src/*/tests/unit/*.html --server --query 'filter=coverage'

Full example

See to see a complete example


Command-line utility to scaffold projects and components using the YUI Build Tool



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