Mounted symlinks are not resolved by secondary PHP instances

[brandonpayton]

Related to:
"[Playground CLI] explore why plugin files don't exist after mounting"
#2347

It appears that plugin symlinks are resolved by the primary PHP instance but then fail to be resolved within a secondary PHP instance.

Based on my tests, it looks like we can fix this by adding /internal/symlinks to the ProxyFS path list (the list of FS paths proxied from secondary workers to the primary worker). But the first thing is to make a PR with a failing test. Then we can confirm a fix.

[adamziel]

Good find! We'll need to account for:

• PHP instances in the same process - with PROXYFS
• PHP instances across multiple CLI workers

[adamziel]

@brandonpayton LMK if I can support you here in any way.

[brandonpayton]

@brandonpayton LMK if I can support you here in any way.

Thanks, @adamziel. Nothing yet. I've struggled with making a suitable test but just realized it was because I was trying to work just at the PHP process manager level. But proxying specific FS path to the primary PHP is actually handled by bootRequestHandler() under @playground/wordpress.

So we need to do more of an integration test. It would maybe be best to add a run-cli test, but those are currently disabled. 😅