Should I used 'ui' or 'ui.boostrap' when including angular-ui and why does angular-ui have a build sub directory?

Question

I'm using yeoman . According to the readme under angular-ui/build/README.md

The repository comes with the modules pre-built and compressed into the build/ directory.

Usage is documented as:

angular.module('myApp', ['ui']);

and

You do not need to build the project to use it - see above [...]

In order to start using angular-ui, I changed the declaration of my angular-js module to include 'ui'

var app = angular.module('MyApp', [
    'ngCookies',
    'ngResource',
    'ngSanitize',
    'ngRoute',
    'ui'
]);

However the UI Bootstrap documentation states installation is achieved with:

angular.module('myModule', ['ui.bootstrap']);

Question #1: What's the difference between using only ui and ui.bootstrap ?

I then included the following js file manually into my .html file (note the build directory in the path as this relates to question 3):

<script src="bower_components/angular-ui/build/angular-ui.js"></script>

However all other angular components are included automatically into my .html file as part of the build process:

Question #2 : How do I use angular-ui such that it too is added as part of the build process?

Question #3 : Why does angular-ui have .js files in a build sub-directory while other angular components do not?

Answer 1

Answer # 1: The difference is that Angular-ui is a combination of several packages of the angular-ui project specificly all (or almost all) the UI-Utils and UI-Modules, and the UI-Bootstrap is another part of the project that includes several bootstrap components writen in angular way and is not included in the Angular-UI Bundle pack ... here for more info and see all the different packages of the project Angular UI github

Answer # 2 As already you did just including the 'ui' dependency into the dependecys array of your main module, howerver it will not include the ui-bootstrap as i mention above

Answer # 3 Those files are as you can see in the link of the main proyect of angular-ui are the modules and utils as separate components so you can delete them from your project and only include the distriburion files or you can use them separetly