Bower packages with BowerRepository

(copy of post to composer-dev mailing list to reach larger audience)

I want to manage javascript dependencies for my projects.

As far as I can see possible options are:

1. Don't use composer for that, use an external tool eg. bower
  - inconvenient install (composer install + bower install is required
  - additional dependencies (you need node+bower)
  - composer packages can't have bower dependencies (that's the big issue for me)

2. Put javascript dependencies into shim composer packages
  - doesn't allow usage of existing bower infrastructure
  - requires quite some effort

3. integrate bower into composer
  - would re-use the existing composer infrastructure
  - would support composer.lock (which is very important for me)

Related Discussion: https://github.com/composer/composer/issues/1121


I implemented a first prototype for (3) where I created a BowerRepository similar
to PearRepository that allows installing bower packages. (This is still work in progress and has many rough edges - I just want to get early feedback)


Example usage:

    $ cat composer.json 
    {
        "repositories": [
            {
                "type": "bower",
                "url": "http://bower.herokuapp.com"
            }
        ],
        "require": {
            "bower/jquery": "1.11.*",
            "bower/backbone": "*"
        }
    }

    $ ../composer/bin/composer update
    Loading composer repositories with package information
    Updating dependencies (including require-dev)
    - Installing bower/jquery (1.11.1)
        Loading from cache

    - Installing bower/underscore (1.6.0)
        Loading from cache

    - Installing bower/backbone (1.1.2)
        Loading from cache

    Writing lock file
    Generating autoload files



Now my question is if this is a good idea that you are willing to integrate into composer.
Or any other thoughts you might have about this...