Cache project index, not just dependencies

[geromueller]

I work on a huge PHP project and indexing takes ~30minutes. Currently PHPLS uses the xcache caching, rendering the extension useless for me.
FileSystemCache would make a better default I think, and only use xache on demand.

[felixfbecker]

@geromueller the LS uses FileSystemCache as default. Anything that indicates to you that it doesn't?

[geromueller]

@felixfbecker I replied via Email, but only to you, so here are more details:

Every time I open VSC it re-indexes, no cache directory present.
What I tried:

• create folders $HOME/.phpls $HOME/.cache/phpls
• create workspace and add subporjects as folders
• open only subproject folder

still no cached files..

The project consists of nested PHP projects (composer.json/.lock)..
PHP 7.2.1, no xcache installed.
Code OSS 1.19.2
PHP IS 2.2.5
ArchLinux (up to date)

[geromueller]

Bump!
LS is still not caching anything. Ran strace on the Language Server process and it does not write to any file. How can I test fixes on the LS using VS Code?

[felixfbecker]

What is your log output in the output panel?

[geromueller]

[Info - 10:11:27] 9489 files total
[Info - 10:11:27] Indexing project for definitions and static references
Parsing file:///home/gmueller/.....php
[Info - 10:17:59] 0 Packages
[Info - 10:17:59] All 9489 PHP files parsed in 391 seconds. 294 MiB allocated.

[geromueller]

Have one workspace with 4 folders, each containing a composer project

[felixfbecker]

Only dependencies are cached because we know to invalidate the cache if the version changed. How would you invalidate the project cache? Any changes can happen between runs, like a git checkout

[geromueller]

On startup you could compare the ctime of the cache file and the source file. And during runtime use inotify?

[iBobik]

My usual Drupal project has 18766 files total which takes even longer.

Is there some workaround better than disabling intellisence?

[klausi]

The current workaround is to use the intelephense extension https://marketplace.visualstudio.com/items?itemName=bmewburn.vscode-intelephense-client instead, which is also recommended by the drupal.org VSCode documentation at https://www.drupal.org/docs/develop/development-tools/configuring-visual-studio-code

[ghost]

I can confirm that the project index is basically rebuilt every time things are restarted, which makes this project mostly worthless to me. Would be nice to have indexing saved.