[Mac] Runaway CPU usage from 'rg' after opening home directory

[benjibee]

I opened by home directory ~/ in VSCode to edit a few bash / git config files and noticed my fans were spinning up and my laptop getting hot. After 10 or so minutes I restarted, opened VSCode and left it running in the background while I checked my email, only to notice the fans were spinning up again.

Activity Monitor shows the following usage:

This process, rg, is owned by VSCode and some searching shows it's for indexing. I ran sudo opensnoop -n rg to see what it was up to, noticed it was indexing cache, my photos, all sorts of random stuff, then realized it was indexing my whole user directory / library and this is what was killing my CPU.

• VSCode Version: 1.24.0
• OS Version: 10.13.5 (17F77)

Steps to Reproduce:

1. Open Visual Studio Code
2. Select FIle > Open…
3. Select user's home folder

Does this issue occur when all extensions are disabled?: Yes

[roblourens]

This is most likely from an extension looking for a certain filetype. Can you confirm this by getting the arguments for those rg processes? Either from the process viewer in vscode or ps.

#34711

[benjibee]

This is what running ps on the pid of one of the instances shows:

rg --files --hidden --case-sensitive -g **/*.php --no-ignore --follow --quiet -- .

And running code --list-extensions shows the following:

GrapeCity.gc-excelviewer
Shan.code-settings-sync
cazoobi.solis
anthonydiametrix.ACF-Snippet
azaugg.vscode-cfengine
bradgashler.htmltagwrap
christian-kohler.path-intellisense
d4nuu8.language-kuka-krl
deerawan.vscode-dash
ecmel.vscode-html-css
esbenp.prettier-vscode
felixfbecker.php-intellisense
mikestead.dotenv
mrmlnc.vscode-apache
mrmlnc.vscode-scss
ms-python.python
ms-vscode.cpptools
nikitaKunevich.snippet-creator
onecentlin.laravel-blade
patbenatar.advanced-new-file
robinbentley.sass-indented
sachittandukar.laravel-5-snippets
sdras.night-owl
shinnn.stylelint
sleistner.vscode-fileutils
smlombardi.slime
vsciot-vscode.vscode-arduino
whatwedo.twig
wordpresstoolbox.wordpress-toolbox

If I disable them all, the errant processes stop after 1-2 minutes. If I re-enable PHP IntelliSense then the errant rg processes return quickly.

While I can take this issue over to the extension developer, I don't think a buggy extension should have the free reign to bog-down my system like this.

[roblourens]

Ok, yes this is exactly what #34711 is for