Assetic not generating any files

Question

I am using Assetic with Twig but not the symfony2 framework.

Here's how the project is set up

/site
   /template
      /css

/public_html
  /css

The raw css is stored under /site/template/css and I want assetic to minify the css and output it to /public_html/css.

Here's how assetic is set up as a twig extension

$factory = new AssetFactory(//absolute path to `/site/template/`);
$factory->setDefaultOutput(//absolute path to `/public_html/`);
$factory->setDebug(false);
$twig->addExtension(new AsseticExtension($factory));

Then in my template:

{% stylesheets 'css/screen.css'  output='css/*' %}
  <link href="{{ asset_url }}" type="text/css" rel="stylesheet" />
{% endstylesheets %}

I can see that assetic has generated a unique url in the final output:

<link href="css/00da241.css" type="text/css" rel="stylesheet" />

However, if I look in /public_html/css, the files are never generated!

I am using a Windows 7 server with apache and PHP has no issues writing files anywhere.

What could be causing this?

Answer 1

What you've done here is asking assetic to generate URL's to assets (using twig).

But assets urls don't point to any file yet. You still have to generate them, using a dump script:

<?php

use Assetic\AssetWriter;
use Assetic\Extension\Twig\TwigFormulaLoader;
use Assetic\Extension\Twig\TwigResource;
use Assetic\Factory\LazyAssetManager;

$am = new LazyAssetManager($factory);

// enable loading assets from twig templates
$am->setLoader('twig', new TwigFormulaLoader($twig));

// loop through all your templates
foreach ($templates as $template) {
    $resource = new TwigResource($twigLoader, $template);
    $am->addResource($resource, 'twig');
}

$writer = new AssetWriter('/path/to/web');
$writer->writeManagerAssets($am);

This script uses twig templates to define which files to dump. You will have to define the $templates variable and the $twig variables of course.