3.18 - Enhancements related to clearing the data

[piotrbak]

User Story
As a user, I’d like to preserve fonts files while clearing Google Fonts data

Acceptance Criteria

• When triggering rocket_clean_domain we should only clear CSS related to the Google Fonts (/wp-content/cache/fonts/{site_id}/google-fonts/css/)
• The font files itselves should be preserved while triggering the rocket_clean_domain (/wp-content/cache/fonts/{site_id}/google-fonts/fonts)
• When switching the theme we should clear both CSS files and font files
• When the domain is changed and the button is clicked, we need to make sure that the CSS and font files are erased
• All the above scenarios should be multisite compatible. It means that we should be erasing only the data related to the specific website while triggering those actions

Additional information

• The font file size in woff2 format is around 10-40kb, it's pretty safe to keep them for a longer time in the filesystem, at least for now
• The time for download each font is around 0.12 seconds
• Adding 2 fonts using built-in Astra theme features adds 14 Google Font files, which adds more than 1.5s of processing of uncached page
• Adding 14 complete fonts using Google website added 425 Google Font files, which added more than 40s of processing of uncached page

Schedule

• The target to implement this enhancement is 3.18 release itself, or 3rd alpha release

[remyperona]

What do you mean by rocket_clean_data? It's not an existing function/action

[piotrbak]

Already edited it for the correct naming, sorry, my bad

[Mai-Saad]

working fine on related PR knowing that domain change is out of scope from test on multisite as now the banner is not displayed there even on 3.17.3.1