asset-discovery is a Composer-enabled PHP script to locate assets (JS, CSS, Coffee, SASS, images) across multiple PHP components which then can be copied automatically into generated stylesheets, scripts and image folders.

Based on component-discovery.

First include asset-discovery as a requirement in your project composer.json, and run composer update to install it into your project:

{
  "require": {
    "soundasleep/asset-discovery": "dev-master"
  }
}

Now create a asset-discovery.json in your project, to define the types of assets to discover, and where to place source files:

{
  "src": ["vendor/*/*", "core"],
  "js": "site/generated/js/generated.js",
  "coffee": "site/generated/js/generated-coffee.coffee",
  "css": "site/generated/css/generated.css",
  "scss": "site/generated/css/generated-scss.scss",
  "images": "site/generated/images/"
}

asset-discovery will look in all the src folders for files called assets.json to find matching assets. Wildcards are supported. For example, in your vendor/my/package/assets.json:

{
  "scss": ["css/currencies.scss", "css/second.scss"],
  "coffee": ["js/*.coffee"],
  "images": ["images/*"]
}

Generated asset files, other than images, will be included in the source order specified.

Run the generate script, either with your build script or manually, with a given root directory:

php -f vendor/soundasleep/asset-discovery/generate.php .

This will generate various files under the directories defined in your asset-discovery.json config. These files can then be passed along to the next step in a build chain (e.g. compile SASS to CSS, minify, spritify, optimize images etc).

1. Actually publish on Packagist
2. More documentation, especially default asset-discovery.json parameters
3. Tests
4. Example projects using asset-discovery
5. Create grunt task grunt-php-asset-discovery to wrap the manual PHP command
6. Release 0.1 version