Only inject imports for components actually used in MDX

[Marocco2]

Currently if I use astro-embed-integration in astro.config.mjs it will inject itself (CSS and JS) post compiling to every MDX file, even if there aren't any embeds in the MDX.
I propose to check for every file which would got embeds and inject proper astro-embed plugin for each of them

[vasfvitor]

any ideas as how to do it? maybe it should be implemented in auto-import then pass the path/files list from here?

also, couldn't this (import in every mdx) be opt-in?

[delucis]

Transferred this across from https://github.com/delucis/astro-embed as this functionality, if ever implemented, would likely need to be implemented here in astro-auto-import.

I haven’t looked into if this is possible reliably. Perhaps if we could enforce somehow a plugin to run last, it could check the final AST for references and only add import statements for the imports that are needed. Doing it earlier would mean astro-auto-import could miss component usage added by later plugins.