Warning with Vite 3

[ak-14]

Hi,

We've recently migrated to Vite 3 and started seeing the following warning when we include postcss-rtlcss in our postcss.config file:

"A PostCSS plugin did not pass the from option to postcss.parse. This may cause imported assets to be incorrectly transformed. If you've recently added a PostCSS plugin that raised this warning, please contact the package author to fix the issue."

This is the PR that introduced this warning:
vitejs/vite#8183

Can this cause unexpected issues later on and can it be fixed?

Thanks!

[elchininet]

Hi @ak-14,
The parse method in this plugin is not used in any rule that is coming from a file but in dynamic rules that are created on the fly, so it is hard to specify the from parameter of these rules. But anyway it would be good to have a reproducible example to see if it can be mocked to avoid the warning. Please, provide me with the repository in which you are creating the migration to reproduce it or create a minimum reproducible repository for the same.
Regards

[ak-14]

Hi @elchininet
Thank you for responding so quickly. I created a minimum reproducible repository in the link below:
https://github.com/ak-14/postcss-rtlcss-issue-160

[elchininet]

Hi @ak-14,
I‘ve tried to mock the from property without any success, the warning is still there. I‘ll open a discussion in the Vite repo to get some feedback. I‘ll update you.
Regards

[elchininet]

Hi @ak-14,
You can follow the discussion here: vitejs/vite#9339
Regards.

[ak-14]

Hi @elchininet
Thank you very much for taking the time to look into this issue and possible workarounds for it. I will be following up with the discussion you mentioned and we will continue to depend on postcss-rtlcss in our projects.

[elchininet]

Hi @ak-14,
I already updated the issue. I forgot two places in which that method was being used, with these changes the warning is gone.
You can try version 3.7.2 of the package.
Regards.