Symfony2 Assetic - how to set different directories for assets in dev and prod env?

I'm using assetic for compiling .less files, and managing assest in general. In dev environment I'm using less compiling via controller.

To keep my repository clean I've set write_to option in assetic configuration to some directory and set it as ignored by git. In dev it works as expected.

In prod env there is a problem though. Assets are dumping correctly but to the directory set in write_to option. But links to the assets links to the main /web directory and breaks.

And here is my question: how to use assetic for assets management to make it working in prod and keep it clean in repository.

Of course I can not commit dev generated assets to git, but it must break at some time.

Here is my assetic config:

Assetic Configuration

assetic:
    debug:          "%kernel.debug%"
    use_controller: false
    bundles:        [ ]
    write_to: "%kernel.root_dir%/../web/assets/assetic"
    filters:
        cssrewrite: ~
        less:
            node: '%node_path%'
            node_paths: ['%node_modules_path%']
            apply_to: '\.less$'

Solution

Ok, that was easy :)

I forgot that there is config.yml and config_dev.yml, so you can configure anything properly for dev, prod, test and whatever environment.

So it was enough to move line

write_to: "%kernel.root_dir%/../web/assets/assetic"

from config.yml to config_dev.yml.

Now in dev env assets are generated to ignored by git dir, and in prod it is generated in /web/ dir and linked properly.