Symfony get Asset Name in Assetic output - php

Question

I generate my file with code like this:
{% block head_stylesheets %}
{% stylesheets
filter='?uglifycss'
'#MyBundle/Resources/public/less/myfile.less'
%}
<link href="{{ asset_url }}" type="text/css" rel="stylesheet" media="screen"/>
{% endstylesheets %}
{% endblock head_stylesheets %}
It dumps a file named like this: c543k540_myfile_1.css
This file is composed of the asset name followed by the filename: {assetName}_{filename}.css
How can I customize the output in keeping the asset name in the output?
{% block head_stylesheets %}
{% stylesheets
output="css/mynewfilename.{assetName}.css" // <--- Here
filter='?uglifycss'
'#MyBundle/Resources/public/less/myfile.less'
%}
<link href="{{ asset_url }}" type="text/css" rel="stylesheet" media="screen"/>
{% endstylesheets %}
{% endblock head_stylesheets %}
Update to clarify
I know that if I use the name option, in prod it will compile to myouputname.css but what I would like to have in debug/dev environment is following the bellow code something like myfile_myouputname_1.css
{% block head_stylesheets %}
{% stylesheets
name="myouputname" // <--- Here
filter='?uglifycss'
'#MyBundle/Resources/public/less/myfile.less'
%}
<link href="{{ asset_url }}" type="text/css" rel="stylesheet" media="screen"/>
{% endstylesheets %}
{% endblock head_stylesheets %}
Thanks for your reply.

Answer 1

Using Assetic to manage web assets in Symfony applications is no longer recommended. Instead, use Webpack Encore.
https://symfony.com/doc/current/frontend/assetic/index.html#dumping-asset-files
Page-Specific JavaScript or CSS (Multiple Entries) is described here:
https://symfony.com/doc/current/frontend/encore/simple-example.html#multiple-javascript-entries
// webpack.config.js
Encore
// ... general CSS file here...
.addStyleEntry('some_page', './assets/css/assetName.css')
;
Using addStyleEntry() is supported, but not recommended. A better option is to follow the pattern above: use addEntry() to point to a JavaScript file, then require the CSS needed from inside of that.