Index refresh is (sometimes) extremely slow, locks up the app whilst refreshing

[Drarok]

I'm seeing "Refreshing index" and the activity indicator for around 5 seconds, during which time the UI is totally unresponsive. If I then press ⌘R to perform another refresh, it completes in a fraction of a second.

Does anyone have any clues why this is happening?

[dbrnz]

This has only just started happening for me and I'm wondering if a recent Mojave update might be the culprit...

[dbrnz]

Hmm, all my doing -- I had a newly created output directory, which wasn't in .gitignore, that had almost 50,000 files in a sub-directory tree...

[IanVS]

I have experienced this as well, with a recently built app on Catalina. For now I've turned off Watch for changes in repository.

[reconbot]

This continues to happen even in small repositories. I'm also realizing they have large .gitignored directories (eg node_modules) and that might be part of it.