I have my home dir as a jj repo with snapshot.auto-track = 'none()', and this change made it so that running jj starts Snapshotting ... for a bunch of folders in my ~ and eventually fails with

Internal error: Failed to snapshot the working copy
Caused by:
1: Failed to read directory /home/jakob/.local/share/containers/storage/volumes/861e72b0da83ff1cee691c51d408c5ca4e2c205a96dc3cc2a530d5a94e43dfb0
2: Permission denied (os error 13)

I suppose it is impossible to support both

• listing untracked files in untracked folders
• not walking the entire universe of folders

so you have to decide which one you value more.

I don't thinking having a * in ~/.gitignore is a solution, because you can't override jj file track a gitignore'd file.

Maybe we could report .local/ as untracked without walking it recursively?

If there are no tracking entries starting with .local/, yes, we can short-circuit and report all files in .local are untracked. I didn't add such optimization because the purpose of auto-track option is afaik to avoid auto-add of temporary files, etc., not to avoid permission errors or ignore files permanently.

Maybe you can add ~/.local/.gitignore to ignore all files in ~/.local?

because you can't override jj file track a gitignore'd file.

We'll need some command flag to track ignored files.

I didn't add such optimization because the purpose of auto-track option is afaik to avoid auto-add of temporary files, etc., not to avoid permission errors or ignore files permanently.

Right, I should have remembered that. I agree with you.