New filter to base64 encode and image

Initial patch

Add some caching

Usage example

<img src="{{ drupal_svg_encode('/themes/custom/theme_name/assets/icons/icon-rss.svg') }}" {{ attributes|without('src') }}>

@paulsheldrake looks interesting. Any reason to limit it to svg only?
I would use it to show inline small image for pre-loading purpouses.

Yeah, totally possible to example to other image types.

The reason I didn't here is:

• The project I'm on currently just needs it for SVGs :)
• Other file types can be quite large which then can cause memory issues, especially if there a lot of images to process.

That being said something to investigate more later if i get time

https://twig.symfony.com/doc/3.x/filters/data_uri.html

There is a data URI filter in Twig but it lives in a separate Twig extension. Twig Tweak could just register that extensions in Drupal.

Given that the filter is just a few lines of code we could just copy it into Twig Tweak.

I've added data_uri filter. It will be available in the next release. Thank you.

Automatically closed - issue fixed for 2 weeks with no activity.

@paulsheldrake looks interesting. Any reason to limit it to svg only?
I would use it to show inline small image for pre-loading purpouses.

Please don't! We had an incident of backups of the production database failing due to large `data:image` chunks in the database.