High CPU/RAM - Multiple app.css files causing multiple processes to spawn

[osamajvd]

What version of VS Code are you using?

v1.107.0

What version of Tailwind CSS IntelliSense are you using?

v0.14.29

What version of Tailwind CSS are you using?

v4.1.18

What package manager are you using?

bun

What operating system are you using?

Windows

Tailwind CSS Stylesheet (v4) or config file (v3)

Unrelated to the contents but using v4 style app.css

VS Code settings

Unrelated

Reproduction URL

Unrelated

Describe your issue

I have an extension that backs up each file save under a .history folder. I know this won't be a common setup but it lets me go back and review code that I was iterating on that I might not have pushed to git.

With the newest update, each app.css file under the .history folder spawns its own process which I believe is intended design based on the patch notes for that version.

Not sure if's possible to have an exclude folder but for the time being, I have just backed up the history folder else where and I can continue working as normal so definitely not urgent.

Tailwind.Intellisense.CPU.Usage.Bug.mp4

[thecrypticace]

Well, it probably shouldn't spawn a ton of processes. I'm assuming this is maybe the Oxide content scanning that we had to offload because of issues with Windows.

Any chance you could provide a reproduction (privately is fine) so I can see if we can optimize / tweak that if it makes sense to?

For now, you should use the tailwindCSS.files.exclude setting:

{
  "tailwindCSS.files.exclude": [
    // Exclude VCS and npm folders
    "**/.git/**", "**/node_modules/**", "**/.hg/**", "**/.svn/**",

    // Exclude my backups
    "**/.history/**",
  ]
}

[osamajvd]

Well, it probably shouldn't spawn a ton of processes. I'm assuming this is maybe the Oxide content scanning that we had to offload because of issues with Windows.

Any chance you could provide a reproduction (privately is fine) so I can see if we can optimize / tweak that if it makes sense to?

Yeah no problem, here is as minimal as possible as per the tailwind docs with an app.css + 28 app.css files in the history folder resulting in 40 total processes under VS Code on my system: https://github.com/osamajvd/tw-bug-demo

For now, you should use the tailwindCSS.files.exclude setting:

{
"tailwindCSS.files.exclude": [
// Exclude VCS and npm folders
"/.git/", "/node_modules/", "/.hg/", "/.svn/",

// Exclude my backups
"**/.history/**",

]
}

Amazing - thanks!

[thecrypticace]

Will be fixed in the next release — thanks for the repro!